Flash Flood Prediction Program
by f2p2＠udfcd.org
Time: 902 AM Tue September 10, 2024
Forecaster: Justin Brooks
-------------------------
Heavy Precipitation Outlook
Flash Flood Prediction Program
-------------------------
Another hot, mostly sunny day with a slight chance of a few high based
showers/thunderstorms late this afternoon and evening.
The high-pressure ridge will start to slowly break down today
keeping westerly upper-level dynamics aloft. This will result in mild
and dry conditions throughout most of the day today under mostly sunny
to partly cloudy skies.
Another slight chance this afternoon for a few high-based showers and
possibly a thunderstorm or two. Once again, most storm activity will
remain anchored to the foothills, likely mixing out as they move
eastward and onto the plains. The majority of, if not all
precipitation will struggle to reach the surface, bringing a better
chance of gusty sprinkles rather than any meaningful rainfall within
the District. The best chance for storm activity will be from 3-8pm
with skies clearing by midnight.
Overnight temperatures will drop into the mid to upper 50s on the
plains with low to mid 50s along the foothills.
STORM RAINFALL POTENTIAL AND DURATION: Typical showers will produce
between a trace and 0.10” total in 10-30 minutes.
WORST CASE SCENARIO: A moderate to strong shower/isolated thunderstorm
will have the potential to produce 0.10”-0.30” total in 10-30
minutes.
A LOOK AHEAD: A weak disturbance will move into the region today,
bringing a better chance for afternoon showers and thunderstorms. Good
southwesterly upper-level support could enhance storm potential with
some stronger storms possible for areas east of the I-25 corridor. The
best chance for storm activity will be between 2-8pm tomorrow with a
couple of rounds of showers/thunderstorms possible within the
District. Thursday remains breezy and dry as high temperatures drop
into a more seasonable low 80s.
LOCATION
PRIME TIME
30-Minute Rainfall
and % Probability Message
Potential
Plains
Adams
400 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Arapahoe
400 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Boulder
400 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Broomfield
400 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Denver
400 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Douglas
400 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Jefferson
400 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Foothills above 6500ft
Boulder
300 PM TO 700 PM
Trace (30%) to 0.1" (15%) to 0.3" (10%)
NONE
Douglas
300 PM TO 700 PM
Trace (30%) to 0.1" (15%) to 0.3" (10%)
NONE
Jefferson
300 PM TO 700 PM
Trace (30%) to 0.1" (15%) to 0.3" (10%)
NONE
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
MHFD Flood Prediction Center: 303-458-0789 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
3 months, 2 weeks
Flash Flood Prediction Program
by f2p2＠udfcd.org
Time: 901 AM Mon September 9, 2024
Forecaster: Justin Brooks
-------------------------
Heavy Precipitation Outlook
Flash Flood Prediction Program
-------------------------
Warm, mostly sunny with a slight chance of a few high based
showers/thunderstorms this afternoon and evening.
A slight shift in the upper-level flow aloft today will bring more
westerly flow aloft over the region today as high-pressure continues
to churn over the desert southwest. Mild and dry conditions are
expected throughout most of the day today under mostly sunny skies.
Another very slight chance this afternoon for a few high-based showers
and possibly a thunderstorm or two. Most storm activity will remain
anchored to the foothills, likely mixing out as they move eastward and
onto the plains. Once again, the majority of, if not all precipitation
will struggle to reach the surface, resulting in gusty sprinkles
rather than any meaningful rainfall within the District. The best
chance for storm activity will be from 2-8pm with skies starting to
clear by sundown.
Overnight temperatures will drop into the upper 50s to around 60
degrees on the plains with mid to upper 50s along the foothills.
STORM RAINFALL POTENTIAL AND DURATION: Typical showers will produce
between a trace and 0.10” total in 10-30 minutes.
WORST CASE SCENARIO: A moderate to strong shower/isolated thunderstorm
will have the potential to produce 0.10”-0.30” total in 10-30
minutes.
A LOOK AHEAD: Westerly upper-level flow aloft continues bringing
another mostly mild and dry day tomorrow as high temperatures reach
the upper 80s to around 90 degrees. Another slight chance for a few
high-based showers and possibly a weak thunderstorm or two, mainly
along the higher terrain foothills and Palmer Divide. A relatively
weak disturbance will move into the region Wednesday, bringing a
slightly better chance for afternoon showers and thunderstorms with
minimal chances for any heavy rainfall at this time.
LOCATION
PRIME TIME
30-Minute Rainfall
and % Probability Message
Potential
Plains
Adams
300 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Arapahoe
300 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Boulder
300 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Broomfield
300 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Denver
300 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Douglas
300 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Jefferson
300 PM TO 800 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Foothills above 6500ft
Boulder
200 PM TO 700 PM
Trace (30%) to 0.1" (15%) to 0.3" (5%)
NONE
Douglas
200 PM TO 700 PM
Trace (30%) to 0.1" (15%) to 0.3" (5%)
NONE
Jefferson
200 PM TO 700 PM
Trace (30%) to 0.1" (15%) to 0.3" (5%)
NONE
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
MHFD Flood Prediction Center: 303-458-0789 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
3 months, 2 weeks
Flash Flood Prediction Program
by f2p2＠udfcd.org
Time: 900 AM Sun September 8, 2024
Forecaster: Justin Brooks
-------------------------
Heavy Precipitation Outlook
Flash Flood Prediction Program
-------------------------
Another warm, sunny and mostly dry today
Very little shift in the upper-level flow aloft today will keep
northwesterly flow aloft over the region today as high-pressure
continues to churn over the desert southwest. Mild and dry conditions
are expected throughout most of the day today under mostly sunny
skies.
Another very slight chance this afternoon for a few high-based showers
and possibly a thunderstorm or two. Any storm activity will likely
remain anchored to the foothills, mixing out as they move eastward and
onto the plains. Most, if not all precipitation will struggle to reach
the surface this afternoon, likely resulting in gusty sprinkles rather
than any meaningful rainfall within the District. The best chance for
storm activity will be from 3-7pm with skies clearing by sundown.
Overnight temperatures will drop into the mid to upper 50s on the
plains with low to mid 50s along the foothills.
STORM RAINFALL POTENTIAL AND DURATION: Typical showers will produce
between a trace and 0.10” total in 10-30 minutes.
WORST CASE SCENARIO: A moderate to strong shower/isolated thunderstorm
will have the potential to produce 0.10”-0.30” total in 10-30
minutes.
A LOOK AHEAD: A minimal change in the overall dynamics once again will
result in another mild and dry day tomorrow as high temperatures reach
the upper 80s to around 90 degrees. Mild and dry conditions will
continue throughout the day Tuesday as high temperatures remain in the
upper 80s to around 90 degrees. A weak disturbance will move into the
region Wednesday, bringing a chance for afternoon showers and
thunderstorms with minimal chances for any heavy rainfall at this
time.
LOCATION
PRIME TIME
30-Minute Rainfall
and % Probability Message
Potential
Plains
Adams
300 PM TO 700 PM
Trace (10%) to 0.1" (5%) to 0.3" (0%)
NONE
Arapahoe
300 PM TO 700 PM
Trace (10%) to 0.1" (5%) to 0.3" (0%)
NONE
Boulder
300 PM TO 700 PM
Trace (10%) to 0.1" (5%) to 0.3" (0%)
NONE
Broomfield
300 PM TO 700 PM
Trace (10%) to 0.1" (5%) to 0.3" (0%)
NONE
Denver
300 PM TO 700 PM
Trace (10%) to 0.1" (5%) to 0.3" (0%)
NONE
Douglas
300 PM TO 700 PM
Trace (10%) to 0.1" (5%) to 0.3" (0%)
NONE
Jefferson
300 PM TO 700 PM
Trace (10%) to 0.1" (5%) to 0.3" (0%)
NONE
Foothills above 6500ft
Boulder
200 PM TO 600 PM
Trace (20%) to 0.1" (15%) to 0.3" (5%)
NONE
Douglas
200 PM TO 600 PM
Trace (20%) to 0.1" (15%) to 0.3" (5%)
NONE
Jefferson
200 PM TO 600 PM
Trace (20%) to 0.1" (15%) to 0.3" (5%)
NONE
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
MHFD Flood Prediction Center: 303-458-0789 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
3 months, 2 weeks
Flash Flood Prediction Program
by f2p2＠udfcd.org
Time: 902 AM Sat September 7, 2024
Forecaster: Justin Brooks
-------------------------
Heavy Precipitation Outlook
Flash Flood Prediction Program
-------------------------
Warm, sunny and mostly dry today
Northwesterly flow aloft will continue over the region today as
high-pressure churns in the southwestern United States. Mild and dry
conditions are expected throughout most of the day today under mostly
sunny skies.
A slight chance this evening for a few high-based showers and possibly
a thunderstorm or two. Most, if not all precipitation will struggle to
reach the surface, likely resulting in gusty sprinkles rather than any
meaningful rainfall within the District. The best chance for storm
activity will be from 6-10pm with skies clearing by midnight.
A better chance for storm activity out on the eastern plains will keep
a threat in and around the District this evening as gust fronts may
move into the District from the east, potentially triggering storm
development inside the District in the later evening hours.
Overnight temperatures will drop into the low to mid 50s on the plains
with upper 40s to around 50 degrees along the foothills.
STORM RAINFALL POTENTIAL AND DURATION: Typical showers/weak
thunderstorms will produce between a trace and 0.10” total in 10-30
minutes.
WORST CASE SCENARIO: A moderate to strong shower/isolated thunderstorm
will have the potential to produce 0.10”-0.30” total in 10-30
minutes.
A LOOK AHEAD: Very little change in the overall dynamics Tomorrow will
result in another mostly mild and dry day as high temperatures reach
the mid to upper 80s. Another very slight chance for a few showers and
possibly a thunderstorm or two along the higher terrain, however,
minimal to no precipitation is expected inside the District at this
time. Mild and dry conditions will continue throughout the day Monday
with another slight chance of a few showers and thunderstorms in the
evening. Any shower activity will remain light with no threat of heavy
rainfall expected.
LOCATION
PRIME TIME
30-Minute Rainfall
and % Probability Message
Potential
Plains
Adams
600 PM TO 1000 PM
Trace (30%) to 0.1" (15%) to 0.3" (10%)
NONE
Arapahoe
600 PM TO 1000 PM
Trace (30%) to 0.1" (15%) to 0.3" (10%)
NONE
Boulder
600 PM TO 1000 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Broomfield
600 PM TO 1000 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Denver
600 PM TO 1000 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Douglas
600 PM TO 1000 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Jefferson
600 PM TO 1000 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Foothills above 6500ft
Boulder
600 PM TO 1000 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Douglas
600 PM TO 1000 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
Jefferson
600 PM TO 1000 PM
Trace (20%) to 0.1" (10%) to 0.3" (5%)
NONE
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
MHFD Flood Prediction Center: 303-458-0789 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
3 months, 2 weeks
Flash Flood Prediction Program
by f2p2＠udfcd.org
Time: 918 AM Fri September 6, 2024
Forecaster: Justin Brooks
-------------------------
Heavy Precipitation Outlook
Flash Flood Prediction Program
-------------------------
Warmer, sunny and dry today
North to northwesterly flow aloft will continue to dominate the
region today as high-pressure churns in the southwestern United
States. Mild and dry conditions are expected throughout the day today
under mostly sunny skies. This evening will also be pleasant with
light, variable winds along with continued dry conditions. Overnight
temperatures will drop into the low to mid 50s on the plains with
upper 40s to around 50 degrees along the foothills.
STORM RAINFALL POTENTIAL AND DURATION: No precipitation is expected
within the District boundaries today.
A LOOK AHEAD: A minimal overall change in the upper-level pattern
tomorrow will bring similar conditions for the District. Tomorrow will
be mild and dry throughout the day as high temperatures reach the
upper 80s. A very slight chance for a few showers and possible a
thunderstorm or two along the higher terrain, however, no
precipitation is expected inside the District at this time. Mild and
dry conditions will continue throughout the day Sunday with another
slight chance of a few showers and thunderstorms in the foothill
region and possibly along the Palmer Divide. Any shower activity will
remain light with no threat of heavy rainfall expected.
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
MHFD Flood Prediction Center: 303-458-0789 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
3 months, 2 weeks
Flash Flood Prediction Program
by f2p2＠udfcd.org
Time: 1004 AM Thu September 5, 2024
Forecaster: Laura Smith
-------------------------
Heavy Precipitation Outlook
Flash Flood Prediction Program
-------------------------
Morning Showers with Clearing Afternoon Skies
A few isolated showers may linger across the southern portions of
the District this morning. Any precipitation should remain relatively
light and is not expected to pose flooding risks. Highs will reach the
mid 70’s today. Chances for storms will gradually decline throughout
the day as the system moves east. Skies will clear overnight.
STORM RAINFALL POTENTIAL AND DURATION: Showers and thunderstorms today
have the potential to produce between a trace to 0.10” in 10-30
minutes.
WORST CASE SCENARIO: A strong thunderstorm has the potential to
produce up to 0.20” 60 minutes or less.
A LOOK AHEAD: Friday will be warmer as a high-pressure system expands
across the Desert Southwest. Afternoon temperatures will be in the 80s
with dry conditions expected. Over the weekend and into early next
week, temperatures will continue warming to into the upper 80s to low
90s with sunny skies.
LOCATION
PRIME TIME
30-Minute Rainfall
and % Probability Message
Potential
Plains
Adams
Current TO 400 PM THU
Trace (15%) to 0.05" (10%) to 0.1" (5%)
NONE
Arapahoe
Current TO 400 PM THU
Trace (15%) to 0.05" (10%) to 0.1" (5%)
NONE
Boulder
Current TO 400 PM THU
Trace (15%) to 0.05" (10%) to 0.1" (5%)
NONE
Broomfield
Current TO 400 PM THU
Trace (15%) to 0.05" (10%) to 0.1" (5%)
NONE
Denver
Current TO 400 PM THU
Trace (15%) to 0.05" (10%) to 0.1" (5%)
NONE
Douglas
Current TO 400 PM THU
Trace (15%) to 0.05" (10%) to 0.1" (5%)
NONE
Jefferson
Current TO 400 PM THU
Trace (15%) to 0.05" (10%) to 0.1" (5%)
NONE
Foothills above 6500ft
Boulder
Current TO 400 PM THU
Trace (15%) to 0.05" (10%) to 0.1" (5%)
NONE
Douglas
Current TO 400 PM THU
Trace (15%) to 0.05" (10%) to 0.1" (5%)
NONE
Jefferson
Current TO 400 PM THU
Trace (15%) to 0.05" (10%) to 0.1" (5%)
NONE
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
MHFD Flood Prediction Center: 303-458-0789 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
3 months, 2 weeks
Flash Flood Prediction Program
by f2p2＠udfcd.org
Time: 145 AM Thu September 5, 2024
Forecaster: Justin Brooks
-------------------------
Internal Message Status
Flash Flood Prediction Program
-------------------------
MESSAGES WILL BE ALLOWED TO EXPIRE AT 3:00 AM
Messages will be allowed to expire at 3am as the threat of heavy
rainfall has come to an end.
A few showers persist over eastern portions of the District at this
time and will continue to move east/southeast and out of the District.
A few off and on showers will be possible over the next hour or two,
however the threat of heavy rainfall within the District ended.
A few areas of patchy fog will be possible through the overnight and
into daybreak tomorrow. Overnight temperatures will drop slightly
more, into the low to mid 50s. A slight chance for a few showers to
linger tomorrow morning, clearing out by mid-morning with another
chance for afternoon and evening showers/thunderstorms.
STORM RAINFALL POTENTIAL AND DURATION: Typical showers/thunderstorms
will produce a trace-0.15” total in 10-30 minutes. A moderate to
strong shower will produce 0.15”-0.30” total in 10-30 minutes.
WORST CASE SCENARIO: A strong showers/weak to moderate thunderstorm or
training of thunderstorm cells will have the potential to produce up
to 0.75” in 45-60 minutes.
COUNTY
MESSAGE
VALID TIMES
PRIME TIME
Boulder County
1
Current TO 300 AM
Current TO 230 AM
Jefferson County
1
Current TO 300 AM
Current TO 230 AM
Broomfield County
1
Current TO 300 AM
Current TO 230 AM
Douglas County
1
Current TO 300 AM
Current TO 230 AM
Adams County
1
Current TO 300 AM
Current TO 230 AM
Denver County
1
Current TO 300 AM
Current TO 230 AM
DIA
1
Current TO 300 AM
Current TO 230 AM
Arapahoe County
1
Current TO 300 AM
Current TO 230 AM
the City of Aurora
1
Current TO 300 AM
Current TO 230 AM
Arvada
1
Current TO 300 AM
Current TO 230 AM
Wheat Ridge
1
Current TO 300 AM
Current TO 230 AM
Lakewood
1
Current TO 300 AM
Current TO 230 AM
County-specific Quantitative
Precipitation Outlook PRECIPITATION TIME
30-Minute Rainfall
and % Probability Message
Potential
Plains
Adams
Current TO 900 AM THU
Trace (50%) to 0.15" (30%) to 0.3" (15%)
NONE
Arapahoe
Current TO 900 AM THU
Trace (50%) to 0.15" (30%) to 0.3" (15%)
NONE
Boulder
Current TO 900 AM THU
Trace (40%) to 0.15" (20%) to 0.3" (10%)
NONE
Broomfield
Current TO 900 AM THU
Trace (40%) to 0.15" (20%) to 0.3" (10%)
NONE
Denver
Current TO 900 AM THU
Trace (40%) to 0.15" (20%) to 0.3" (10%)
NONE
Douglas
Current TO 900 AM THU
Trace (40%) to 0.15" (20%) to 0.3" (10%)
NONE
Jefferson
Current TO 900 AM THU
Trace (40%) to 0.15" (20%) to 0.3" (10%)
NONE
Foothills above 6500ft
Boulder
Current TO 900 AM THU
Trace (40%) to 0.15" (20%) to 0.3" (10%)
NONE
Douglas
Current TO 900 AM THU
Trace (40%) to 0.15" (20%) to 0.3" (10%)
NONE
Jefferson
Current TO 900 AM THU
Trace (40%) to 0.15" (20%) to 0.3" (10%)
NONE
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
MHFD Flood Prediction Center: 303-458-0789 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
3 months, 2 weeks
Flash Flood Prediction Program
by f2p2＠udfcd.org
Time: 1136 PM Wed September 4, 2024
Forecaster: Justin Brooks
-------------------------
Internal Message Status
Flash Flood Prediction Program
-------------------------
MESSAGES WILL BE EXTENDED UNTIL 3:00 AM
Another round of moderate showers/thunderstorms is approaching over
western portion of the District at this time and will result in
Messages to once again be extended until 3:00 AM.
Storms are starting to decrease in strength; however a couple of areas
have produced between 0.50-0.75” in 10-20 minutes just west of the
District boundary. The threat will remain for brief moderate to heavy
rainfall over the next few hours. The largest threat will be a quick
0.50-0.75” in 10-20 minutes, rather than any long-lasting rainfall.
A chance for off and on light showers will remain through daybreak,
although the threat of any moderate to heavy rainfall should come to
an end over the few hours.
STORM RAINFALL POTENTIAL AND DURATION: Typical showers/thunderstorms
will produce a trace-0.25” total in 10-30 minutes.
A moderate to strong shower/thunderstorm will produce 0.25”-0.75”
total in 10-30 minutes.
WORST CASE SCENARIO: A stationary moderate to strong thunderstorm or
training of thunderstorm cells will have the potential to produce up
to 1.25” in 45-60 minutes.
COUNTY
MESSAGE
VALID TIMES
PRIME TIME
Boulder County
1
Current TO 300 AM THURSDAY
Current TO 230 AM THURSDAY
Jefferson County
1
Current TO 300 AM THURSDAY
Current TO 230 AM THURSDAY
Broomfield County
1
Current TO 300 AM THURSDAY
Current TO 230 AM THURSDAY
Douglas County
1
Current TO 300 AM THURSDAY
Current TO 230 AM THURSDAY
Adams County
1
Current TO 300 AM THURSDAY
Current TO 230 AM THURSDAY
Denver County
1
Current TO 300 AM THURSDAY
Current TO 230 AM THURSDAY
DIA
1
Current TO 300 AM THURSDAY
Current TO 230 AM THURSDAY
Arapahoe County
1
Current TO 300 AM THURSDAY
Current TO 230 AM THURSDAY
the City of Aurora
1
Current TO 300 AM THURSDAY
Current TO 230 AM THURSDAY
Arvada
1
Current TO 300 AM THURSDAY
Current TO 230 AM THURSDAY
Wheat Ridge
1
Current TO 300 AM THURSDAY
Current TO 230 AM THURSDAY
Lakewood
1
Current TO 300 AM THURSDAY
Current TO 230 AM THURSDAY
County-specific Quantitative
Precipitation Outlook PRECIPITATION TIME
30-Minute Rainfall
and % Probability Message
Potential
Plains
Adams
Current TO 300 AM THU
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
Arapahoe
Current TO 300 AM THU
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
Boulder
Current TO 300 AM THU
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
Broomfield
Current TO 300 AM THU
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
Denver
Current TO 300 AM THU
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
Douglas
Current TO 300 AM THU
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
Jefferson
Current TO 300 AM THU
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
Foothills above 6500ft
Boulder
Current TO 300 AM THU
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
Douglas
Current TO 300 AM THU
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
Jefferson
Current TO 300 AM THU
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
MHFD Flood Prediction Center: 303-458-0789 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
3 months, 2 weeks
Flash Flood Prediction Program
by f2p2＠udfcd.org
Time: 951 PM Wed September 4, 2024
Forecaster: Justin Brooks
-------------------------
Internal Message Status
Flash Flood Prediction Program
-------------------------
MESSAGES WILL BE EXTENDED UNTIL MIDNIGHT
A few additional moderate showers/isolated thunderstorms persist
over portions of the District at this time and will result in Messages
to be extended until midnight tonight. Storms have generally decreased
in strength, however with dew points in the low to mid 50s, combined
with some upper-level support late this evening, the threat will
remain for brief moderate to heavy rainfall. The largest threat will
be a quick 0.5” in 10-20 minutes, rather than any long-lasting
rainfall. A chance for off and on showers will remain through
midnight, although the threat of any moderate to heavy rainfall should
subside over the next couple of hours. Message 1s may need to be
extended beyond midnight if thunderstorm activity does not diminish in
a timely fashion.
STORM RAINFALL POTENTIAL AND DURATION: Typical showers/thunderstorms
will produce a trace-0.25” total in 10-30 minutes.
WORST CASE SCENARIO: A moderate to strong shower/thunderstorm will
produce 0.25”-0.75” total in 10-30 minutes.
COUNTY
MESSAGE
VALID TIMES
PRIME TIME
Lakewood
1
Current TO 1159 PM
Current TO 1130 PM
Wheat Ridge
1
Current TO 1159 PM
Current TO 1130 PM
Arvada
1
Current TO 1159 PM
Current TO 1130 PM
the City of Aurora
1
Current TO 1159 PM
Current TO 1130 PM
Arapahoe County
1
Current TO 1159 PM
Current TO 1130 PM
DIA
1
Current TO 1159 PM
Current TO 1130 PM
Denver County
1
Current TO 1159 PM
Current TO 1130 PM
Adams County
1
Current TO 1159 PM
Current TO 1130 PM
Douglas County
1
Current TO 1159 PM
Current TO 1130 PM
Broomfield County
1
Current TO 1159 PM
Current TO 1130 PM
Jefferson County
1
Current TO 1159 PM
Current TO 1130 PM
Boulder County
1
Current TO 1159 PM
Current TO 1130 PM
County-specific Quantitative
Precipitation Outlook PRECIPITATION TIME
30-Minute Rainfall
and % Probability Message
Potential
Plains
Adams
Current TO 1159 PM WED
Trace (60%) to 0.25" (30%) to 0.75" (10%)
ISSUED
Arapahoe
Current TO 1159 PM WED
Trace (60%) to 0.25" (30%) to 0.75" (10%)
ISSUED
Boulder
Current TO 1159 PM WED
Trace (60%) to 0.25" (30%) to 0.75" (10%)
ISSUED
Broomfield
Current TO 1159 PM WED
Trace (60%) to 0.25" (30%) to 0.75" (10%)
ISSUED
Denver
Current TO 1159 PM WED
Trace (60%) to 0.25" (30%) to 0.75" (10%)
ISSUED
Douglas
Current TO 1159 PM WED
Trace (60%) to 0.25" (30%) to 0.75" (10%)
ISSUED
Jefferson
Current TO 1159 PM WED
Trace (60%) to 0.25" (30%) to 0.75" (10%)
ISSUED
Foothills above 6500ft
Boulder
Current TO 1159 PM WED
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
Douglas
Current TO 1159 PM WED
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
Jefferson
Current TO 1159 PM WED
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
MHFD Flood Prediction Center: 303-458-0789 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
3 months, 2 weeks
Flash Flood Prediction Program
by f2p2＠udfcd.org
Time: 732 PM Wed September 4, 2024
Forecaster: Justin Brooks
-------------------------
Internal Message Status
Flash Flood Prediction Program
-------------------------
MESSAGES WILL CONTINUE VALID UNTIL 10:00 PM
A gust front is moving in from the north and will have the potential
to trigger another round of showers and possibly a thunderstorm or two
over the next few hours. Temperatures have decreased this evening in
the mid 60s to around 70 degrees which should help limit storm
potential. However, elevated dew points in the low 50s, combined with
some upper-level support will keep the potential for a few moderate to
heavy showers. The largest threat this evening will be a quick 0.5”
in 10-20 minutes rather than any long-lasting rainfall. A chance
remains for showers to persist into the overnight with some isolated
moderate rain could be possible at times.
STORM RAINFALL POTENTIAL AND DURATION: Typical showers/thunderstorms
will produce a trace-0.25” total in 10-30 minutes. A moderate to
strong shower/thunderstorm will produce 0.25”-0.75” total in 10-30
minutes.
WORST CASE SCENARIO: A stationary moderate to strong thunderstorm or
training of thunderstorm cells will have the potential to produce up
to 1.25” in 45-60 minutes.
COUNTY
MESSAGE
VALID TIMES
PRIME TIME
Boulder County
1
Current TO 1000 PM
Current TO 900 PM
Jefferson County
1
Current TO 1000 PM
Current TO 900 PM
Broomfield County
1
Current TO 1000 PM
Current TO 900 PM
Douglas County
1
Current TO 1000 PM
Current TO 900 PM
Adams County
1
Current TO 1000 PM
Current TO 900 PM
Denver County
1
Current TO 1000 PM
Current TO 900 PM
DIA
1
Current TO 1000 PM
Current TO 900 PM
Arapahoe County
1
Current TO 1000 PM
Current TO 900 PM
the City of Aurora
1
Current TO 1000 PM
Current TO 900 PM
Arvada
1
Current TO 1000 PM
Current TO 900 PM
Wheat Ridge
1
Current TO 1000 PM
Current TO 900 PM
Lakewood
1
Current TO 1000 PM
Current TO 900 PM
County-specific Quantitative
Precipitation Outlook PRECIPITATION TIME
30-Minute Rainfall
and % Probability Message
Potential
Plains
Adams
Current TO 1000 PM WED
Trace (60%) to 0.25" (30%) to 0.75" (15%)
ISSUED
Arapahoe
Current TO 1000 PM WED
Trace (60%) to 0.25" (30%) to 0.75" (15%)
ISSUED
Boulder
Current TO 1000 PM WED
Trace (60%) to 0.25" (30%) to 0.75" (15%)
ISSUED
Broomfield
Current TO 1000 PM WED
Trace (60%) to 0.25" (30%) to 0.75" (15%)
ISSUED
Denver
Current TO 1000 PM WED
Trace (60%) to 0.25" (30%) to 0.75" (15%)
ISSUED
Douglas
Current TO 1000 PM WED
Trace (60%) to 0.25" (30%) to 0.75" (15%)
ISSUED
Jefferson
Current TO 1000 PM WED
Trace (60%) to 0.25" (30%) to 0.75" (15%)
ISSUED
Foothills above 6500ft
Boulder
Current TO 1000 PM WED
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
Douglas
Current TO 1000 PM WED
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
Jefferson
Current TO 1000 PM WED
Trace (80%) to 0.25" (40%) to 0.75" (20%)
ISSUED
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.
MHFD Flood Prediction Center: 303-458-0789 F2P2 Website
[http://udfcd.org/Flash+Flood+Prediction+Program]
3 months, 2 weeks