SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 270355
SPSBOU
Special Weather Statement
National Weather Service Denver CO
955 PM MDT Thu Aug 26 2021
COZ032>036-038>040-043-270445-
South and Southeast Grand/West Central and Southwest
Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet CO-Central and South Weld County CO-
Grand and Summit Counties Below 9000 Feet CO-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County
CO-Larimer and Boulder Counties Between 6000 and 9000 Feet CO-
North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe
Counties/East Broomfield County CO-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet CO-
Larimer County Below 6000 Feet/Northwest Weld County CO-
South and East Jackson/Larimer/North and Northeast Grand/Northwest
Boulder Counties Above 9000 Feet CO-
955 PM MDT Thu Aug 26 2021
...Strong thunderstorms will impact portions of western Weld,
Broomfield, Larimer, northern Gilpin, northeastern Grand, northern
Jefferson, northwestern Adams and Boulder Counties through 1045 PM
MDT...
At 954 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 5 miles west of Cherokee Park to 3 miles
northwest of Pinewood Springs to near Rollinsville, or along a line
extending from 27 miles south of Laramie to 23 miles southwest of
Fort Collins to 29 miles northwest of Denver. Movement was east at
40 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Fort Collins, southwestern Greeley, Thornton, northern Arvada,
Westminster, Boulder, Longmont, Loveland, Broomfield, northwestern
Commerce City, Northglenn, Brighton, Lafayette, Windsor, Louisville,
Erie, Superior, Federal Heights, Firestone and Johnstown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare for sudden gusty winds. Secure loose objects and move to a
safe shelter inside a building or vehicle.
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4099 10477 3984 10482 3987 10588 4099 10594
TIME...MOT...LOC 0354Z 281DEG 38KT 4091 10560 4032 10539 3990 10546
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
$$
ENTREKIN
3 years, 2 months
SVRBOU
by EMWIN-Denver Regional
WUUS55 KBOU 192252
SVRBOU
COC005-039-192315-
/O.NEW.KBOU.SV.W.0143.210819T2252Z-210819T2315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
452 PM MDT Thu Aug 19 2021
The National Weather Service in Denver Colorado has issued a
* Severe Thunderstorm Warning for...
Northern Elbert County in east central Colorado...
Southeastern Arapahoe County in northeastern Colorado...
* Until 515 PM MDT.
* At 451 PM MDT, a severe thunderstorm was located 6 miles southwest
of Deer Trail, or 29 miles northwest of Limon, moving northeast at
20 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees. People and
animals outdoors will be injured. Expect hail damage to
roofs, siding, windows, and vehicles.
* This severe thunderstorm will be near...
Deer Trail around 510 PM MDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3945 10415 3959 10419 3965 10396 3950 10393
TIME...MOT...LOC 2251Z 239DEG 17KT 3953 10411
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RPK
3 years, 2 months
SVRBOU
by EMWIN-Denver Regional
WUUS55 KBOU 192232
SVRBOU
COC005-192300-
/O.NEW.KBOU.SV.W.0142.210819T2232Z-210819T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
432 PM MDT Thu Aug 19 2021
The National Weather Service in Denver Colorado has issued a
* Severe Thunderstorm Warning for...
Central Arapahoe County in northeastern Colorado...
* Until 500 PM MDT.
* At 432 PM MDT, a severe thunderstorm was located 4 miles south of
Byers, or 37 miles east of Denver, moving east at 35 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings. Hail damage to
vehicles is expected.
* This severe thunderstorm will remain over mainly rural areas of
central Arapahoe County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3974 10434 3974 10406 3957 10412 3956 10437
TIME...MOT...LOC 2232Z 255DEG 29KT 3964 10425
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
RPK
3 years, 2 months
SVRBOU
by EMWIN-Denver Regional
WUUS55 KBOU 192204
SVRBOU
COC005-039-192245-
/O.NEW.KBOU.SV.W.0137.210819T2204Z-210819T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
404 PM MDT Thu Aug 19 2021
The National Weather Service in Denver Colorado has issued a
* Severe Thunderstorm Warning for...
Northwestern Elbert County in east central Colorado...
Central Arapahoe County in northeastern Colorado...
* Until 445 PM MDT.
* At 404 PM MDT, a severe thunderstorm was located 10 miles southeast
of Arapahoe Park, or 25 miles southeast of Denver, moving northeast
at 20 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees. People and
animals outdoors will be injured. Expect hail damage to
roofs, siding, windows, and vehicles.
* This severe thunderstorm will remain over mainly rural areas of
northwestern Elbert and central Arapahoe Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3945 10455 3963 10465 3973 10435 3953 10424
TIME...MOT...LOC 2204Z 245DEG 15KT 3956 10451
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RPK
3 years, 2 months
FLSBOU
by EMWIN-Denver Regional
WGUS85 KBOU 192155
FLSBOU
Flood Advisory
National Weather Service Denver CO
355 PM MDT Thu Aug 19 2021
COC005-031-035-192300-
/O.NEW.KBOU.FA.Y.0195.210819T2155Z-210819T2300Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Arapahoe CO-Denver CO-Douglas CO-
355 PM MDT Thu Aug 19 2021
The National Weather Service in Denver has issued a
* Urban and Small Stream Flood Advisory for...
Western Arapahoe County in northeastern Colorado...
South Central Denver County in northeastern Colorado...
Northeastern Douglas County in northeastern Colorado...
* Until 500 PM MDT.
* At 355 PM MDT, Doppler radar indicated heavy rain due to
thunderstorms. This will cause urban and small stream flooding.
Between 0.5 and 1 inch of rain has fallen.
* Minor flooding in low-lying and poor drainage areas.
* Some locations that will experience flooding include...
Southern Denver, Aurora, Centennial, Highlands Ranch, northeastern
Castle Rock, Parker, northeastern Littleton, eastern Englewood,
Greenwood Village, Lone Tree, Arapahoe Park, Buckley AFB, The
Pinery, Castle Pines, Louviers, Cherry Hills Village, Foxfield and
Cherry Creek Reservoir.
Additional rainfall amounts of 0.5 to 1 inch are expected over the
area. This additional rain will result in minor flooding.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause minor flooding of
small creeks and streams, highways, streets, underpasses, drainage
areas and other low lying spots.
&&
LAT...LON 3968 10497 3974 10476 3974 10475 3971 10450
3957 10459 3957 10461 3957 10466 3955 10466
3953 10466 3951 10466 3950 10466 3947 10466
3945 10466 3940 10482 3950 10504
$$
TH
3 years, 2 months
SVRBOU
by EMWIN-Denver Regional
WUUS55 KBOU 192144
SVRBOU
COC001-005-192215-
/O.NEW.KBOU.SV.W.0134.210819T2144Z-210819T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
344 PM MDT Thu Aug 19 2021
The National Weather Service in Denver Colorado has issued a
* Severe Thunderstorm Warning for...
Central Arapahoe County in northeastern Colorado...
South central Adams County in northeastern Colorado...
* Until 415 PM MDT.
* At 344 PM MDT, a severe thunderstorm was located 5 miles south of
Watkins, or 20 miles east of Denver, moving northeast at 20 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees. People and
animals outdoors will be injured. Expect hail damage to
roofs, siding, windows, and vehicles.
* This severe thunderstorm will be near...
Watkins around 350 PM MDT.
Manila Village around 400 PM MDT.
Other locations in the path of this severe thunderstorm include
Bennett and Strasburg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3960 10455 3973 10466 3985 10447 3971 10436
TIME...MOT...LOC 2144Z 219DEG 18KT 3968 10456
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RPK
3 years, 2 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 192013
SPSBOU
Special Weather Statement
National Weather Service Denver CO
213 PM MDT Thu Aug 19 2021
COZ040-043-192030-
Central and South Weld County CO-
North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe
Counties/East Broomfield County CO-
213 PM MDT Thu Aug 19 2021
...A strong thunderstorm will impact portions of northwestern Adams
County through 230 PM MDT...
At 213 PM MDT, Doppler radar was tracking a strong thunderstorm near
Todd Creek, or 15 miles north of Denver, moving north at 30 mph.
HAZARD...Winds in excess of 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Thornton, northwestern Commerce City, Northglenn, Brighton, Barr Lake
and Todd Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
A Severe Thunderstorm Watch remains in effect until 800 PM MDT for
northeastern Colorado.
&&
LAT...LON 3983 10480 3987 10500 4008 10490 4005 10473
TIME...MOT...LOC 2013Z 199DEG 26KT 3994 10489
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
$$
RPK
3 years, 2 months
WCNBOU
by EMWIN-Denver Regional
WWUS65 KBOU 191921
WCNBOU
WATCH COUNTY NOTIFICATION FOR WATCH 449
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
121 PM MDT THU AUG 19 2021
COC001-005-031-039-073-075-087-095-115-121-123-200200-
/O.NEW.KBOU.SV.A.0449.210819T1921Z-210820T0200Z/
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
449 IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR THE FOLLOWING AREAS
IN COLORADO THIS WATCH INCLUDES 11 COUNTIES
IN EAST CENTRAL COLORADO
ELBERT LINCOLN
IN NORTHEAST COLORADO
ADAMS ARAPAHOE DENVER
LOGAN MORGAN PHILLIPS
SEDGWICK WASHINGTON WELD
THIS INCLUDES THE CITIES OF AKRON, AURORA, CENTENNIAL, DENVER,
DENVER INTERNATIONAL AIRPORT, ELIZABETH, FORT MORGAN, GREELEY,
HOLYOKE, JULESBURG, KIOWA, LIMON, STERLING, THORNTON,
WESTMINSTER, AND WINDSOR.
$$
3 years, 2 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 180031
SPSBOU
Special Weather Statement
National Weather Service Denver CO
631 PM MDT Tue Aug 17 2021
COZ040-041-045-046-180115-
Elbert/Central and East Douglas Counties Above 6000 Feet CO-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County CO-Central and East Adams and Arapahoe Counties CO-
North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe
Counties/East Broomfield County CO-
631 PM MDT Tue Aug 17 2021
...A strong outflow winds across northeastern Douglas, northwestern
Elbert and central Arapahoe Counties...
Strong outflow winds from earlier showers and thunderstorms will
blow across northeastern Douglas, northwestern Elbert and central
Arapahoe Counties through 715 PM MDT. Wind speeds up to 55 mph are
expected.
HAZARD...Wind gusts up to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Southern Denver, southern Aurora, Centennial, Highlands Ranch, Castle
Rock, Parker, northeastern Littleton, southern Englewood, Elbert,
Greenwood Village, Lone Tree, Sheridan, Bennett, Elizabeth, Kiowa,
The Pinery, Arapahoe Park, Franktown, Strasburg and Ponderosa Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3934 10488 3964 10504 3974 10441 3971 10412
3939 10410 3913 10416 3914 10449
TIME...MOT...LOC 0026Z 240DEG 48KT 3963 10473
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
$$
RJK
3 years, 2 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 130509
SPSBOU
Special Weather Statement
National Weather Service Denver CO
1109 PM MDT Thu Aug 12 2021
COZ040-041-130545-
Elbert/Central and East Douglas Counties Above 6000 Feet CO-
North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe
Counties/East Broomfield County CO-
1109 PM MDT Thu Aug 12 2021
...A strong thunderstorm will impact portions of north central
Douglas and southwestern Arapahoe Counties through 1145 PM MDT...
At 1108 PM MDT, Doppler radar was tracking a strong thunderstorm over
southwestern Highlands Ranch, or 14 miles south of Denver, moving
south at 5 mph.
HAZARD...Penny size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to outdoor objects is possible.
Locations impacted include...
Southwestern Centennial, Highlands Ranch, southern Littleton,
Greenwood Village, Lone Tree, Roxborough Park, Castle Pines, Louviers
and Sedalia.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3944 10501 3944 10502 3946 10502 3947 10504
3945 10505 3945 10507 3950 10509 3951 10508
3954 10508 3956 10505 3958 10505 3962 10491
3944 10485 3942 10499
TIME...MOT...LOC 0508Z 340DEG 6KT 3952 10500
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...<30 MPH
$$
RPK
3 years, 3 months