FFABOU
by EMWIN-Denver Regional
WGUS65 KBOU 310911
FFABOU
URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Denver CO
311 AM MDT Mon Jul 31 2023
COZ032-033-035-312215-
/O.NEW.KBOU.FA.A.0010.230731T1800Z-230801T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Grand and Summit Counties Below 9000 Feet-South and East
Jackson/Larimer/North and Northeast Grand/Northwest Boulder
Counties Above 9000 Feet-Larimer and Boulder Counties Between
6000 and 9000 Feet-
Including the cities of Laramie and Medicine Bow Mountains, Red
Feather Lakes, Dillon, Rabbit Ears Range, Grand Lake, Estes Park,
Nederland, Willow Creek Pass, Fraser, Glendevey, Kremmling,
Cameron Pass, Rocky Mountain National Park, Granby, and Hot
Sulphur Springs
311 AM MDT Mon Jul 31 2023
...FLOOD WATCH IN EFFECT FROM NOON MDT TODAY THROUGH MIDNIGHT
TONIGHT...
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Portions of central and north central Colorado, including
the following areas, in central Colorado, Grand and Summit
Counties Below 9000 Feet. In north central Colorado, Larimer and
Boulder Counties Between 6000 and 9000 Feet and South and East
Jackson/Larimer/North and Northeast Grand/Northwest Boulder
Counties Above 9000 Feet.
* WHEN...From Noon MDT today through midnight tonight.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Thunderstorms are expected to develop across the high country
during the early afternoon and continue into the late evening
hours. Storms will be capable of producing heavy rain with
rainfall rates in excess of an inch per hour, with flash
flooding possible, especially over burn areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
COZ038>046-312215-
/O.NEW.KBOU.FA.A.0010.230731T2200Z-230801T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Larimer County Below 6000 Feet/Northwest Weld County-Boulder And
Jefferson Counties Below 6000 Feet/West Broomfield County-North
Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe
Counties/East Broomfield County-Elbert/Central and East Douglas
Counties Above 6000 Feet-Northeast Weld County-Central and South
Weld County-Morgan County-Central and East Adams and Arapahoe
Counties-North and Northeast Elbert County Below 6000 Feet/North
Lincoln County-
Including the cities of Deer Trail, Grover, Byers, Brighton,
Hugo, Littleton, Longmont, Briggsdale, Parker, Goodrich, Bennett,
Agate, Nunn, Greeley, Stoneham, Elbert, City of Denver, Eaton,
Kiowa, Fort Collins, Hereford, Golden, Aurora, Roggen, Wiggins,
Fort Lupton, Brush, Boulder, Pawnee Buttes, Fondis, Matheson,
Limon, Fort Morgan, Raymer, Highlands Ranch, Denver International
Airport, Lakewood, Larkspur, Leader, Arvada, Loveland, and Castle
Rock
311 AM MDT Mon Jul 31 2023
...FLOOD WATCH IN EFFECT FROM 4PM THIS AFTERNOON THROUGH MIDNIGHT
TONIGHT...
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Portions of east central, north central, and northeast
Colorado, including the following areas, in east central Colorado,
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County. In north central Colorado, Larimer County Below 6000
Feet/Northwest Weld County. In northeast Colorado, Boulder And
Jefferson Counties Below 6000 Feet/West Broomfield County, Central
and East Adams and Arapahoe Counties, Central and South Weld
County, Elbert/Central and East Douglas Counties Above 6000 Feet,
Morgan County, North Douglas County Below 6000 Feet/Denver/West
Adams and Arapahoe Counties/East Broomfield County and Northeast
Weld County.
* WHEN...From this afternoon through this evening.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- Thunderstorms are expected to develop across the high country
early this afternoon. A cluster of slow moving thunderstorms
should then develop over the I-25 corridor by late afternoon
or early evening, then drift into the eastern plains by the
late evening. Rainfall rates of 1 to 2 inches per hour will
be possible in the stronger storms.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Hiris
9 months, 3 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 280335
SPSBOU
Special Weather Statement
National Weather Service Denver CO
935 PM MDT Thu Jul 27 2023
COZ032-033-280415-
Grand and Summit Counties Below 9000 Feet CO-
South and East Jackson/Larimer/North and Northeast Grand/Northwest
Boulder Counties Above 9000 Feet CO-
935 PM MDT Thu Jul 27 2023
...A strong thunderstorm will impact portions of northeastern Grand
County through 1015 PM MDT...
At 928 PM MDT, Doppler radar was tracking a strong thunderstorm 10
miles north of Hot Sulphur Springs, or 59 miles west of Fort Collins,
moving northeast at 25 mph.
HAZARD...Winds in excess of 40 mph, brief heavy rain 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...
East Troublesome burn scar, Trail Ridge and Grand Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Brief heavy rainfall, up to 0.25 inch in 30 minutes could produce
minor flooding in the East Troublesome burn scar. In addition,
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.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm.
&&
LAT...LON 4045 10574 4018 10571 4018 10579 4017 10580
4012 10616 4027 10619
TIME...MOT...LOC 0328Z 240DEG 26KT 4023 10610
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
$$
COOPER
9 months, 3 weeks
FFWBOU
by EMWIN-Denver Regional
WGUS55 KBOU 261920
FFWBOU
COC049-262230-
/O.NEW.KBOU.FF.W.0062.230726T1920Z-230726T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Denver CO
120 PM MDT Wed Jul 26 2023
The National Weather Service in Denver has issued a
* Flash Flood Warning for...
North Central Grand County in north central Colorado for the
western East Troublesome Burn Area...
* Until 430 PM MDT.
* At 120 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 0.2 and 0.4 inches of
rain have fallen. Additional rainfall amounts of 0.2 to 0.4 inches
are possible in the warned area. Flash flooding is ongoing or
expected to begin shortly.
Excessive rainfall over the burn scar will result in debris flow
moving through the western East Troublesome Burn Area. The debris
flow can consist of rock, mud, vegetation and other loose materials.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
mainly rural areas of North Central Grand County
This includes the following additional locations...
Middle Willow Creek Valley, Remote East Troublesome Headwaters, East
Troublesome Valley and Upper Corral Creek Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to higher ground now. Act quickly to protect your life.
Heavy Rainfall will cause flash flooding of small creeks, streams,
and ditches in the East Troublesome burn area. Rock slides or debris
flows can also be expected across rural roads.
&&
LAT...LON 4034 10617 4034 10616 4033 10615 4033 10614
4034 10612 4034 10608 4026 10605 4021 10604
4014 10617 4019 10627 4024 10628 4027 10627
4030 10626 4033 10621 4033 10619
FLASH FLOOD...RADAR INDICATED
$$
AD
9 months, 3 weeks
FFWBOU
by EMWIN-Denver Regional
WGUS55 KBOU 202159
FFWBOU
COC049-210100-
/O.NEW.KBOU.FF.W.0061.230720T2159Z-230721T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Denver CO
359 PM MDT Thu Jul 20 2023
The National Weather Service in Denver has issued a
* Flash Flood Warning for...
The East Troublesome burn scar in...
Northeastern Grand County in north central Colorado...
* Until 700 PM MDT.
* At 359 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain over the East Troublesome Burn Scar. The expected
rainfall rate is 0.25 inches in 15 minutes. Flash flooding is
ongoing or expected to begin shortly.
Excessive rainfall over the warning area will cause mud slides near
steep terrain. The mud slide can consist of rock, mud, vegetation
and other loose materials.
HAZARD...Flash flooding caused by thunderstorms in and around
the East Troublesome Burn Scar.
SOURCE...Radar.
IMPACT...Flooding of areas in and around the East Troublesome
Burn Scar.
* Some locations that will experience flash flooding include...
Grand Lake.
This includes the following additional locations...
Lower Stillwater Creek, Middle Willow Creek Valley, Lower Willow
Creek Valley, Drowsy Water Ranch, Elk Mountain, East Troublesome
Valley and Upper Corral Creek Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to higher ground now. Act quickly to protect your life.
This is a life threatening situation. Heavy rainfall will cause
extensive and severe flash flooding of creeks...streams...and
ditches in the East Troublesome Burn Scar. Severe debris flows can
also be anticipated across roads. Roads and driveways may be washed
away in places. If you encounter flood waters...climb to safety.
&&
LAT...LON 4027 10595 4033 10589 4035 10586 4033 10573
4030 10578 4030 10572 4025 10576 4018 10588
4016 10588 4011 10592 4010 10613 4018 10626
4028 10626
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...0.25 INCHES IN 15 MINUTES
$$
as
10 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 072316
SPSBOU
Special Weather Statement
National Weather Service Denver CO
516 PM MDT Fri Jul 7 2023
COZ030-033-035-072345-
Jackson County Below 9000 Feet CO-
Larimer and Boulder Counties Between 6000 and 9000 Feet CO-
South and East Jackson/Larimer/North and Northeast Grand/Northwest
Boulder Counties Above 9000 Feet CO-
516 PM MDT Fri Jul 7 2023
...Strong thunderstorms will impact portions of southeastern Jackson
and central Larimer Counties through 545 PM MDT...
At 516 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 4 miles northwest of Rand to near Estes Park,
or along a line extending from 68 miles east of Craig to 26 miles
southwest of Fort Collins. Movement was northeast at 40 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Estes Park, Trail Ridge, Kinikinik, Pennock Pass, Chambers Lake,
Cameron Pass, Gould, Pingree Park and Rand.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4079 10583 4061 10539 4032 10557 4048 10630
TIME...MOT...LOC 2316Z 226DEG 37KT 4048 10625 4039 10551
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
$$
RPK
10 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 072236
SPSBOU
Special Weather Statement
National Weather Service Denver CO
436 PM MDT Fri Jul 7 2023
COZ030-032-033-072315-
Jackson County Below 9000 Feet CO-
Grand and Summit Counties Below 9000 Feet CO-
South and East Jackson/Larimer/North and Northeast Grand/Northwest
Boulder Counties Above 9000 Feet CO-
436 PM MDT Fri Jul 7 2023
...Strong thunderstorms will impact portions of southeastern Jackson,
southwestern Larimer and northern Grand Counties through 515 PM
MDT...
At 435 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles southeast of Coalmont to 3 miles
northwest of Grand Lake, or along a line extending from 61 miles east
of Craig to 45 miles southwest of Fort Collins. Movement was
northeast at 35 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...
Trail Ridge, Grand Lake, Gould, Rand, Cameron Pass and Coalmont.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4064 10638 4044 10551 4044 10554 4042 10556
4042 10554 4040 10558 4042 10566 4041 10564
4039 10561 4036 10564 4035 10567 4035 10565
4034 10565 4023 10581 4037 10653 4040 10652
4041 10654 4045 10656
TIME...MOT...LOC 2235Z 241DEG 30KT 4047 10639 4029 10586
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
$$
RPK
10 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 071944
SPSBOU
Special Weather Statement
National Weather Service Denver CO
144 PM MDT Fri Jul 7 2023
COZ033-035-072015-
Larimer and Boulder Counties Between 6000 and 9000 Feet CO-
South and East Jackson/Larimer/North and Northeast Grand/Northwest
Boulder Counties Above 9000 Feet CO-
144 PM MDT Fri Jul 7 2023
...A strong thunderstorm will impact portions of central Larimer
County through 215 PM MDT...
At 144 PM MDT, Doppler radar was tracking a strong thunderstorm near
Glen Haven, or 20 miles west of Fort Collins, moving northeast at 20
mph.
HAZARD...Penny size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to outdoor objects is possible.
Locations impacted include...
Stove Prairie, Pennock Pass, Glen Haven, Buckhorn Mountain and
Pingree Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4069 10526 4053 10517 4052 10520 4055 10522
4054 10523 4050 10521 4052 10524 4053 10527
4048 10525 4042 10548 4058 10560 4069 10531
4068 10530 4070 10528
TIME...MOT...LOC 1944Z 239DEG 17KT 4050 10544
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...<30 MPH
$$
RPK
10 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 060231
SPSBOU
Special Weather Statement
National Weather Service Denver CO
831 PM MDT Wed Jul 5 2023
COZ030-032-033-060315-
Jackson County Below 9000 Feet CO-
Grand and Summit Counties Below 9000 Feet CO-
South and East Jackson/Larimer/North and Northeast Grand/Northwest
Boulder Counties Above 9000 Feet CO-
831 PM MDT Wed Jul 5 2023
...A strong thunderstorm will impact portions of southeastern Jackson
and north central Grand Counties through 915 PM MDT...
At 830 PM MDT, Doppler radar was tracking a strong thunderstorm 5
miles southeast of Coalmont, or 60 miles east of Craig, moving
southeast at 30 mph.
HAZARD...Winds in excess of 30 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...
Coalmont and Rand.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4045 10654 4061 10643 4041 10580 4015 10600
TIME...MOT...LOC 0230Z 297DEG 28KT 4050 10639
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...30 MPH
$$
HIRIS
10 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 060204
SPSBOU
Special Weather Statement
National Weather Service Denver CO
804 PM MDT Wed Jul 5 2023
COZ030-031-060230-
Jackson County Below 9000 Feet CO-
West Jackson and West Grand Counties Above 9000 Feet CO-
804 PM MDT Wed Jul 5 2023
...A strong thunderstorm will impact portions of southwestern Jackson
County through 830 PM MDT...
At 803 PM MDT, Doppler radar was tracking a strong thunderstorm 10
miles northeast of Steamboat Springs, or 47 miles east of Craig,
moving southeast at 25 mph.
HAZARD...Wind gusts of 50 to 55 mph and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Coalmont.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4069 10665 4056 10638 4042 10648 4043 10649
4041 10651 4040 10651 4038 10653 4047 10667
4051 10666 4052 10667 4053 10667 4056 10669
4062 10670
TIME...MOT...LOC 0203Z 299DEG 21KT 4055 10665
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...55 MPH
$$
RPK
10 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 052145
SPSBOU
Special Weather Statement
National Weather Service Denver CO
345 PM MDT Wed Jul 5 2023
COZ032-034-052215-
South and Southeast Grand/West Central and Southwest
Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet CO-Grand and Summit Counties Below 9000 Feet CO-
345 PM MDT Wed Jul 5 2023
...A strong thunderstorm will impact portions of east central Grand
County through 415 PM MDT...
At 345 PM MDT, Doppler radar was tracking a strong thunderstorm 6
miles west of Elkdale, or 58 miles west of Denver, moving east at 25
mph.
HAZARD...Wind gusts up to 50 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...
Granby, Fraser, Winter Park, Tabernash and Elkdale.
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.
&&
LAT...LON 3993 10605 4008 10604 4007 10577 3992 10578
TIME...MOT...LOC 2145Z 273DEG 21KT 3999 10599
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
$$
RPK
10 months, 2 weeks