SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 290150
SPSBOU
Special Weather Statement
National Weather Service Denver CO
750 PM MDT Mon Aug 28 2023
COZ036-039-040-290215-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County
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-
750 PM MDT Mon Aug 28 2023
...A strong thunderstorm will impact portions of northwestern Douglas
and central Jefferson Counties through 815 PM MDT...
At 749 PM MDT, Doppler radar was tracking a strong thunderstorm 6
miles east of Conifer, or 20 miles southwest of Denver, moving
southeast at 20 mph.
HAZARD...Winds in excess of 40 mph and half inch 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...
Western Highlands Ranch, southwestern Littleton, Roxborough Park,
Chatfield Reservoir, Louviers, Sprucewood, South Platte, and Sedalia.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3931 10522 3953 10529 3958 10507 3948 10497
3938 10497
TIME...MOT...LOC 0149Z 334DEG 18KT 3950 10519
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
$$
HEAVENER
8 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 290112
SPSBOU
Special Weather Statement
National Weather Service Denver CO
712 PM MDT Mon Aug 28 2023
COZ039-043-290200-
Central and South Weld County CO-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County
CO-
712 PM MDT Mon Aug 28 2023
...A strong thunderstorm will impact portions of southwestern Weld
and northeastern Boulder Counties through 800 PM MDT...
At 712 PM MDT, Doppler radar was tracking a strong thunderstorm near
Berthoud, or 19 miles southwest of Greeley, moving southeast at 30
mph.
HAZARD...Winds in excess of 40 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Longmont, Erie, Firestone, Johnstown, Frederick, Fort Lupton,
Berthoud, Lochbuie, Dacono, Mead, Platteville, and Hudson.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4003 10458 4000 10496 4004 10496 4004 10498
4003 10497 4002 10500 4001 10499 4000 10506
4025 10520 4026 10518 4026 10506 4034 10505
4035 10502 4035 10500
TIME...MOT...LOC 0112Z 324DEG 24KT 4025 10505
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
$$
HEAVENER
8 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 290059
SPSBOU
Special Weather Statement
National Weather Service Denver CO
659 PM MDT Mon Aug 28 2023
COZ036-039>041-045-290145-
Elbert/Central and East Douglas Counties Above 6000 Feet CO-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield 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-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet CO-
659 PM MDT Mon Aug 28 2023
...Strong outflow winds will impact portions of northeastern
Douglas, northwestern Elbert, western Arapahoe, Broomfield, Denver,
northern Jefferson and southwestern Adams Counties through 745 PM
MDT...
At 657 PM MDT, Doppler radar was tracking strong outflow winds along
a line extending from 3 miles north of Thornton to Aurora to 5 miles
southeast of Watkins to 4 miles south of Strasburg, or along a line
extending from 34 miles south of Greeley to 10 miles east of Denver
to 57 miles north of Colorado Springs to 43 miles northwest of Limon.
Movement was southwest 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...
Denver, Aurora, Lakewood, Thornton, Arvada, Westminster, Centennial,
Broomfield, Highlands Ranch, northern Castle Rock, southwestern
Commerce City, Parker, Littleton, Northglenn, Englewood, Wheat Ridge,
Golden, Greenwood Village, Evergreen, and Federal Heights.
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 3940 10499 3949 10521 3973 10540 4000 10502
3978 10468 3971 10449 3970 10417 3956 10434
3956 10447 3954 10447 3954 10445 3953 10444
3954 10442 3951 10441 3934 10462
TIME...MOT...LOC 0057Z 050DEG 32KT 3996 10498 3974 10475 3968 10456
3967 10433
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
$$
HEAVENER
8 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 290047
SPSBOU
Special Weather Statement
National Weather Service Denver CO
647 PM MDT Mon Aug 28 2023
COZ041-290115-
Elbert/Central and East Douglas Counties Above 6000 Feet CO-
647 PM MDT Mon Aug 28 2023
...A strong thunderstorm will impact portions of southeastern Douglas
County through 715 PM MDT...
At 647 PM MDT, Doppler radar was tracking a strong thunderstorm over
western Castle Rock, or 24 miles south of Denver, moving south at 15
mph.
HAZARD...Winds in excess of 40 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Castle Rock, Larkspur, and Greenland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3939 10492 3943 10481 3919 10464 3915 10488
TIME...MOT...LOC 0047Z 341DEG 15KT 3937 10487
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
$$
HEAVENER
8 months, 2 weeks
SVRBOU
by EMWIN-Denver Regional
WUUS55 KBOU 290038
SVRBOU
COC001-005-290130-
/O.NEW.KBOU.SV.W.0465.230829T0038Z-230829T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
638 PM MDT Mon Aug 28 2023
The National Weather Service in Denver Colorado has issued a
* Severe Thunderstorm Warning for...
Eastern Arapahoe County in northeastern Colorado...
Eastern Adams County in northeastern Colorado...
* Until 730 PM MDT.
* At 637 PM MDT, a severe thunderstorm was located near Leader, or 29
miles southwest of Fort Morgan, moving south at 30 mph.
HAZARD...70 mph wind gusts and ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings. People and animals
outdoors will be injured. Expect hail damage to roofs,
siding, windows, and vehicles.
* This severe thunderstorm will be near...
Leader around 645 PM MDT.
Other locations in the path of this severe thunderstorm include Deer
Trail.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
&&
LAT...LON 3996 10421 3999 10411 3967 10384 3958 10413
TIME...MOT...LOC 0037Z 338DEG 24KT 3992 10413
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
HEAVENER
8 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 290014
SPSBOU
Special Weather Statement
National Weather Service Denver CO
614 PM MDT Mon Aug 28 2023
COZ043>045-290045-
Central and South Weld County CO-Morgan County CO-
Central and East Adams and Arapahoe Counties CO-
614 PM MDT Mon Aug 28 2023
...A strong thunderstorm will impact portions of southwestern Morgan
and northeastern Adams Counties through 645 PM MDT...
At 614 PM MDT, Doppler radar was tracking a strong thunderstorm 7
miles west of Hoyt, or 25 miles southwest of Fort Morgan, moving
southeast at 30 mph.
HAZARD...Wind gusts up to 50 mph and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible. Hail may accumulate on roadways causing hazardous
travel.
Locations impacted include...
Leader and Hoyt.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4008 10428 4013 10414 3984 10393 3982 10423
TIME...MOT...LOC 0014Z 335DEG 25KT 4006 10421
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH
$$
HEAVENER
8 months, 3 weeks
FLSBOU
by EMWIN-Denver Regional
WGUS85 KBOU 290009
FLSBOU
Flood Advisory
National Weather Service Denver CO
609 PM MDT Mon Aug 28 2023
COC087-123-290315-
/O.NEW.KBOU.FA.Y.0162.230829T0009Z-230829T0315Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Morgan CO-Weld CO-
609 PM MDT Mon Aug 28 2023
...FLOOD ADVISORY IN EFFECT UNTIL 915 PM MDT THIS EVENING...
* WHAT...Urban and small stream flooding caused by excessive
rainfall is expected.
* WHERE...A portion of northeast Colorado, including the following
counties, Morgan and Weld.
* WHEN...Until 915 PM MDT.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
* ADDITIONAL DETAILS...
- At 609 PM MDT, Doppler radar indicated heavy rain due to
thunderstorms. This will cause urban and small stream
flooding. Between 1 and 1.5 inches of rain have fallen.
- Additional rainfall amounts of 0.5 to 1 inch are expected
over the area. This additional rain will result in minor
flooding.
- Some locations that will experience flooding include...
Briggsdale.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4039 10424 4068 10449 4071 10442 4074 10433
4063 10419 4048 10402
$$
HEAVENER
8 months, 3 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 282358
SPSBOU
Special Weather Statement
National Weather Service Denver CO
558 PM MDT Mon Aug 28 2023
COZ042>045-290045-
Central and South Weld County CO-Morgan County CO-
Central and East Adams and Arapahoe Counties CO-
Northeast Weld County CO-
558 PM MDT Mon Aug 28 2023
...Strong thunderstorms will impact portions of south central Weld,
western Morgan and north central Adams Counties through 645 PM MDT...
At 558 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles southwest of Keota to 10 miles
southeast of Briggsdale to near Riverside Reservoir to 6 miles
northwest of Roggen, or along a line extending from 49 miles west of
Sterling to 90 miles north of Limon to 24 miles west of Fort Morgan
to 19 miles southeast of Greeley. Movement was southeast at 30 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Fort Morgan, Wiggins, Log Lane Village, Hoyt, Orchard, Weldona,
Prospect Valley, Jackson Reservoir, Riverside Reservoir, Goodrich,
and Roggen.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare for sudden gusty winds. Secure loose objects and move to a
safe shelter inside a building or vehicle.
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4026 10373 4007 10392 3997 10399 3988 10439
4027 10456 4035 10428 4056 10425 4069 10412
TIME...MOT...LOC 2358Z 332DEG 28KT 4059 10414 4051 10422 4031 10425
4025 10444
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
$$
HEAVENER
8 months, 3 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 282321
SPSBOU
Special Weather Statement
National Weather Service Denver CO
521 PM MDT Mon Aug 28 2023
COZ038-042-043-290000-
Central and South Weld County CO-Northeast Weld County CO-
Larimer County Below 6000 Feet/Northwest Weld County CO-
521 PM MDT Mon Aug 28 2023
...A strong thunderstorm will impact portions of central Weld County
through 600 PM MDT...
At 520 PM MDT, Doppler radar was tracking a strong thunderstorm 7
miles northwest of Briggsdale, or 26 miles northeast of Greeley,
moving southeast at 30 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...
Briggsdale.
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.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4083 10436 4053 10412 4052 10415 4048 10415
4039 10442 4075 10457
TIME...MOT...LOC 2320Z 335DEG 25KT 4072 10442
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
$$
HEAVENER
8 months, 3 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 282234
SPSBOU
Special Weather Statement
National Weather Service Denver CO
434 PM MDT Mon Aug 28 2023
COZ035-038-282300-
Larimer and Boulder Counties Between 6000 and 9000 Feet CO-
Larimer County Below 6000 Feet/Northwest Weld County CO-
434 PM MDT Mon Aug 28 2023
...Strong thunderstorms will impact portions of northwestern Weld and
northeastern Larimer Counties through 500 PM MDT...
At 433 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles southwest of Hillsdale to 10 miles
southeast of South Greeley to 4 miles north of Rockport to 8 miles
west of Natural Fort, or along a line extending from 11 miles east of
Cheyenne to 68 miles northwest of Fort Morgan to 37 miles north of
Greeley to 26 miles north of Fort Collins. Movement was southeast at
30 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Carr, Rockport, Hereford, and Natural Fort.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4098 10428 4096 10428 4080 10451 4075 10474
4072 10511 4100 10522 4100 10430
TIME...MOT...LOC 2233Z 335DEG 26KT 4113 10458 4102 10464 4096 10482
4094 10509
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
$$
HEAVENER
8 months, 3 weeks