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
$$
HEAVENER
8 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 290014
SPSBOU
Special Weather Statement
National Weather Service Denver CO
614 PM MDT Mon Aug 28 2023
COZ043>045-290045-
Central and South Weld County CO-Morgan County CO-
Central and East Adams and Arapahoe Counties CO-
614 PM MDT Mon Aug 28 2023
...A strong thunderstorm will impact portions of southwestern Morgan
and northeastern Adams Counties through 645 PM MDT...
At 614 PM MDT, Doppler radar was tracking a strong thunderstorm 7
miles west of Hoyt, or 25 miles southwest of Fort Morgan, moving
southeast at 30 mph.
HAZARD...Wind gusts up to 50 mph and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible. Hail may accumulate on roadways causing hazardous
travel.
Locations impacted include...
Leader and Hoyt.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4008 10428 4013 10414 3984 10393 3982 10423
TIME...MOT...LOC 0014Z 335DEG 25KT 4006 10421
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH
$$
HEAVENER
8 months, 2 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
$$
HEAVENER
8 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 282358
SPSBOU
Special Weather Statement
National Weather Service Denver CO
558 PM MDT Mon Aug 28 2023
COZ042>045-290045-
Central and South Weld County CO-Morgan County CO-
Central and East Adams and Arapahoe Counties CO-
Northeast Weld County CO-
558 PM MDT Mon Aug 28 2023
...Strong thunderstorms will impact portions of south central Weld,
western Morgan and north central Adams Counties through 645 PM MDT...
At 558 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles southwest of Keota to 10 miles
southeast of Briggsdale to near Riverside Reservoir to 6 miles
northwest of Roggen, or along a line extending from 49 miles west of
Sterling to 90 miles north of Limon to 24 miles west of Fort Morgan
to 19 miles southeast of Greeley. Movement was southeast at 30 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Fort Morgan, Wiggins, Log Lane Village, Hoyt, Orchard, Weldona,
Prospect Valley, Jackson Reservoir, Riverside Reservoir, Goodrich,
and Roggen.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare for sudden gusty winds. Secure loose objects and move to a
safe shelter inside a building or vehicle.
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4026 10373 4007 10392 3997 10399 3988 10439
4027 10456 4035 10428 4056 10425 4069 10412
TIME...MOT...LOC 2358Z 332DEG 28KT 4059 10414 4051 10422 4031 10425
4025 10444
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
$$
HEAVENER
8 months, 2 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
$$
HEAVENER
8 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 282234
SPSBOU
Special Weather Statement
National Weather Service Denver CO
434 PM MDT Mon Aug 28 2023
COZ035-038-282300-
Larimer and Boulder Counties Between 6000 and 9000 Feet CO-
Larimer County Below 6000 Feet/Northwest Weld County CO-
434 PM MDT Mon Aug 28 2023
...Strong thunderstorms will impact portions of northwestern Weld and
northeastern Larimer Counties through 500 PM MDT...
At 433 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles southwest of Hillsdale to 10 miles
southeast of South Greeley to 4 miles north of Rockport to 8 miles
west of Natural Fort, or along a line extending from 11 miles east of
Cheyenne to 68 miles northwest of Fort Morgan to 37 miles north of
Greeley to 26 miles north of Fort Collins. Movement was southeast at
30 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Carr, Rockport, Hereford, and Natural Fort.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4098 10428 4096 10428 4080 10451 4075 10474
4072 10511 4100 10522 4100 10430
TIME...MOT...LOC 2233Z 335DEG 26KT 4113 10458 4102 10464 4096 10482
4094 10509
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
$$
HEAVENER
8 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 282228
SPSBOU
Special Weather Statement
National Weather Service Denver CO
428 PM MDT Mon Aug 28 2023
COZ042-282300-
Northeast Weld County CO-
428 PM MDT Mon Aug 28 2023
...A strong thunderstorm will impact portions of north central Weld
County through 500 PM MDT...
At 428 PM MDT, Doppler radar was tracking a strong thunderstorm near
Panorama Point, or 22 miles southwest of Kimball, moving southeast at
20 mph.
HAZARD...Wind gusts up to 50 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...
Pawnee Buttes.
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.
&&
LAT...LON 4093 10371 4079 10402 4100 10414 4100 10380
TIME...MOT...LOC 2228Z 328DEG 16KT 4106 10403
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
$$
HEAVENER
8 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 282219
SPSBOU
Special Weather Statement
National Weather Service Denver CO
419 PM MDT Mon Aug 28 2023
COZ038-282245-
Larimer County Below 6000 Feet/Northwest Weld County CO-
419 PM MDT Mon Aug 28 2023
...A strong thunderstorm will impact portions of east central Larimer
County through 445 PM MDT...
At 419 PM MDT, Doppler radar was tracking a strong thunderstorm near
Fort Collins, moving southeast at 20 mph.
HAZARD...Wind gusts up to 50 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Fort Collins, northeastern Loveland, Windsor, and Timnath.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4056 10494 4047 10494 4043 10509 4064 10517
4068 10507
TIME...MOT...LOC 2219Z 328DEG 16KT 4060 10509
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
$$
HEAVENER
8 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 272133
SPSBOU
Special Weather Statement
National Weather Service Denver CO
333 PM MDT Sun Aug 27 2023
COZ038-039-043-272215-
Central and South Weld County CO-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County
CO-Larimer County Below 6000 Feet/Northwest Weld County CO-
333 PM MDT Sun Aug 27 2023
...Strong thunderstorms will impact portions of west central Weld,
southeastern Larimer and northeastern Boulder Counties through 415 PM
MDT...
At 330 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 4 miles southwest of Timnath to near Cedar
Cove, or along a line extending from 5 miles south of Fort Collins to
49 miles north of Denver. Movement was southeast at 20 mph.
HAZARD...Winds in excess of 35 mph, hail up to nickel, locally heavy
rainfall and minor street flooding.
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...
South Fort Collins, Loveland, Windsor, Johnstown, Berthoud, Mead,
Lyons, Timnath, Carter Lake, and Masonville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Heavy rainfall is also occurring with these storms and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4054 10493 4022 10488 4021 10528 4030 10529
4031 10527 4030 10525 4038 10525 4040 10524
4039 10523 4041 10523 4042 10524 4045 10524
4044 10523 4047 10524
TIME...MOT...LOC 2130Z 321DEG 21KT 4048 10503 4040 10527
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...30 MPH
$$
COOPER
8 months, 2 weeks
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 272046
SPSBOU
Special Weather Statement
National Weather Service Denver CO
246 PM MDT Sun Aug 27 2023
COZ035-038-272130-
Larimer and Boulder Counties Between 6000 and 9000 Feet CO-
Larimer County Below 6000 Feet/Northwest Weld County CO-
246 PM MDT Sun Aug 27 2023
...Strong thunderstorms will impact portions of southeastern Larimer
County through 330 PM MDT...
At 243 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from Buckhorn Mountain to 4 miles west of
Wellington, or along a line extending from 63 miles north of Denver
to 8 miles north of Fort Collins. Movement was south at 20 mph.
HAZARD...Winds in excess of 30 mph and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Fort Collins, northern Loveland, Timnath, Stove Prairie, Masonville,
Teds Place, Bellvue, Cedar Cove, Buckhorn Mountain, and Drake. The
eastern portion of the Cameron Peak burn scar north of Drake and
Masonville will also be impacted by these storms.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Locally heavy rainfall is also occurring with these storms and may
lead to localized flooding, especially in the Cameron Peak burn
scar. Do not drive your vehicle through flooded roadways.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4071 10504 4049 10498 4039 10534 4061 10539
TIME...MOT...LOC 2043Z 343DEG 16KT 4060 10532 4068 10508
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...30 MPH
$$
COOPER
8 months, 2 weeks