SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 210114
SPSBOU
Special Weather Statement
National Weather Service Denver CO
714 PM MDT Thu May 20 2021
COZ042-048-210145-
Logan County CO-Northeast Weld County CO-
714 PM MDT Thu May 20 2021
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN WELD AND
NORTHWESTERN LOGAN COUNTIES UNTIL 745 PM MDT...
At 714 PM MDT, Doppler radar was tracking a strong thunderstorm 4
miles north of Stoneham, or 24 miles west of Sterling, moving
northeast at 30 mph.
Penny size hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Stoneham and Westplains.
LAT...LON 4057 10358 4061 10378 4100 10374 4100 10344
4086 10333
TIME...MOT...LOC 0114Z 216DEG 27KT 4067 10366
$$
DIRENZO
4 years, 9 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 202338
SPSBOU
Special Weather Statement
National Weather Service Denver CO
538 PM MDT Thu May 20 2021
COZ038-042-210030-
Northeast Weld County CO-
Larimer County Below 6000 Feet/Northwest Weld County CO-
538 PM MDT Thu May 20 2021
...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL WELD COUNTY UNTIL
630 PM MDT...
At 537 PM MDT, Doppler radar was tracking a strong thunderstorm 13
miles northeast of Purcell, or 25 miles southeast of Cheyenne,
moving north at 35 mph.
Penny size hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Hereford.
LAT...LON 4076 10443 4078 10456 4100 10465 4100 10414
TIME...MOT...LOC 2337Z 195DEG 20KT 4081 10448
$$
DIRENZO
4 years, 9 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 202310
SPSBOU
Special Weather Statement
National Weather Service Denver CO
510 PM MDT Thu May 20 2021
COZ038-042-043-210000-
Central and South Weld County CO-Northeast Weld County CO-
Larimer County Below 6000 Feet/Northwest Weld County CO-
510 PM MDT Thu May 20 2021
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN WELD COUNTY UNTIL
600 PM MDT...
At 510 PM MDT, Doppler radar was tracking a strong thunderstorm near
Lucerne, or 7 miles northeast of Greeley, moving northeast at 25 mph.
Penny size hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Greeley, Evans, Eaton, Kersey, Purcell, Galeton, Gill, Briggsdale,
Lucerne and Barnesville.
LAT...LON 4034 10461 4043 10477 4091 10460 4066 10420
TIME...MOT...LOC 2310Z 220DEG 21KT 4048 10464
$$
DIRENZO
4 years, 9 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 202308
SPSBOU
Special Weather Statement
National Weather Service Denver CO
508 PM MDT Thu May 20 2021
COZ042-210000-
Northeast Weld County CO-
508 PM MDT Thu May 20 2021
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN WELD COUNTY UNTIL
600 PM MDT...
At 507 PM MDT, Doppler radar was tracking a strong thunderstorm 5
miles southwest of New Raymer, or 20 miles north of Fort Morgan,
moving north at 25 mph.
Penny size hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
New Raymer and Pawnee Buttes.
LAT...LON 4081 10369 4052 10380 4052 10397 4082 10402
TIME...MOT...LOC 2307Z 186DEG 23KT 4055 10389
$$
DIRENZO
4 years, 9 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 202208
SPSBOU
Special Weather Statement
National Weather Service Denver CO
408 PM MDT Thu May 20 2021
COZ044-202245-
Morgan County CO-
408 PM MDT Thu May 20 2021
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL MORGAN COUNTY UNTIL 445
PM MDT...
At 407 PM MDT, Doppler radar was tracking a strong thunderstorm 6
miles southwest of Brush, or 6 miles southeast of Fort Morgan, moving
north at 25 mph.
Penny size hail and wind gusts up to 50 mph will be possible with
this storm.
Locations impacted include...
Fort Morgan, Brush, Log Lane Village, Twelve-Mile Corner, Snyder and
Adena School.
LAT...LON 4009 10362 4004 10384 4042 10382 4043 10355
TIME...MOT...LOC 2207Z 183DEG 20KT 4019 10371
$$
DIRENZO
4 years, 9 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 192320
SPSBOU
Special Weather Statement
National Weather Service Denver CO
520 PM MDT Wed May 19 2021
COZ051-200000-
Phillips County CO-
520 PM MDT Wed May 19 2021
...SPECIAL WEATHER STATEMENT...
At 519 PM MDT, Doppler radar was tracking a strong thunderstorm 5
miles south of Holyoke, moving northwest at 20 mph.
Half inch hail, brief heavy rainfall and winds in excess of 30 mph
will be possible with this storm.
Locations impacted include...
Holyoke, Paoli, Fairfield, Highland Center and Pleasant Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare for sudden gusty winds. Secure loose objects and move to a
safe shelter inside a building or vehicle.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4062 10209 4044 10207 4044 10266 4071 10259
TIME...MOT...LOC 2319Z 113DEG 16KT 4050 10230
$$
COOPER
4 years, 9 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 192219
SPSBOU
Special Weather Statement
National Weather Service Denver CO
419 PM MDT Wed May 19 2021
COZ041-192300-
Elbert/Central and East Douglas Counties Above 6000 Feet CO-
419 PM MDT Wed May 19 2021
...SPECIAL WEATHER STATEMENT...
At 415 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles southeast of Arapahoe Park to 3 miles
southeast of Greenland, or along a line extending from 21 miles
southeast of Denver to 19 miles north of Colorado Springs. Movement
was to the south southeast at 10 mph.
Brief heavy rain and half inch diameter hail will be possible with
these storms.
Locations impacted include...
Southern Aurora, Elizabeth, Franktown, Ponderosa Park, Greenland and
The Pinery.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Brief heavy rainfall may lead to localized street flooding. Do not
drive your vehicle through flooded roadways.
&&
LAT...LON 3913 10488 3960 10467 3960 10463 3958 10461
3960 10460 3960 10456 3958 10455 3958 10453
3960 10452 3960 10449 3956 10449 3955 10446
3914 10465
TIME...MOT...LOC 2215Z 201DEG 7KT 3958 10459 3914 10482
$$
COOPER
4 years, 9 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 191943
SPSBOU
Special Weather Statement
National Weather Service Denver CO
143 PM MDT Wed May 19 2021
COZ036-192045-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet CO-
143 PM MDT Wed May 19 2021
...SPECIAL WEATHER STATEMENT...
At 140 PM MDT, Doppler radar was tracking a strong thunderstorm near
Floyd Hill, or 26 miles west of Denver, moving south at 10 mph.
Half inch hail will be possible with this storm.
Locations impacted include...
Idaho Springs, Black Hawk, Brookvale and Floyd Hill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Locally heavy rainfall is also occurring with this storm, and may
lead to minor flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3967 10547 3964 10543 3965 10543 3969 10546
3972 10543 3973 10550 3970 10552 3971 10552
3981 10548 3981 10543 3979 10540 3968 10541
3968 10545 3967 10544 3966 10541 3963 10541
3963 10551 3965 10553
TIME...MOT...LOC 1940Z 003DEG 7KT 3973 10545
$$
COOPER
4 years, 9 months
FLSBOU
by EMWIN-Denver Regional
WGUS85 KBOU 191918
FLSBOU
Flood Advisory
National Weather Service Denver CO
118 PM MDT Wed May 19 2021
COC069-192045-
/O.NEW.KBOU.FA.Y.0013.210519T1918Z-210519T2045Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Larimer CO-
118 PM MDT Wed May 19 2021
The National Weather Service in Denver has issued a
* Small Stream Flood Advisory for...
Central Larimer County in north central Colorado...
* Until 245 PM MDT.
* At 118 PM MDT, Doppler radar indicated heavy rain due to
thunderstorms. This will cause small stream flooding in the
Cameron Peak burn area
* Some locations that will experience flooding include...
Pingree Park, Kinikinik, Rustic, Chambers Lake and Pennock Pass.
This includes the following streams and drainages...
Miller Fork, Sheep Creek, Two and One Half Creek, Dry Creek,
Peterson Creek, Roaring Creek, Buckhorn Creek, Joe Wright Creek,
North Fork Joe Wright Creek, Laramie River, Elkhorn Creek, Fall
Creek, Brinker Creek, Black Creek, Manhattan Creek, Elk Creek,
Roaring River, Mummy Pass Creek, Pendergrass Creek, North Fork
Fish Creek, Bennett Creek, Little Beaver Creek, Pennock Creek,
Poudre Pass Creek, Michigan River and South Lone Pine Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Heavy Rainfall will cause minor flooding of creeks and streams,
roads and roadside culverts in the affected part of the Cameron Peak
burn area. The heavy rains could also trigger rock slides or debris
flows.
Rock slides and debris flows are likely from this rainfall. Minor
flooding of creeks and streams, roads and roadside culverts is also
expected.
&&
LAT...LON 4047 10566 4053 10591 4064 10589 4074 10580
4078 10562 4073 10553 4066 10553 4059 10544
4051 10542 4048 10552 4049 10551 4052 10551
4055 10555 4055 10562 4057 10569 4057 10571
4056 10571 4053 10568 4048 10565
$$
Cooper
4 years, 9 months
FLSBOU
by EMWIN-Denver Regional
WGUS85 KBOU 191843
FLSBOU
Flood Advisory
National Weather Service Denver CO
1243 PM MDT Wed May 19 2021
COC069-192015-
/O.NEW.KBOU.FA.Y.0012.210519T1843Z-210519T2015Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Larimer CO-
1243 PM MDT Wed May 19 2021
The National Weather Service in Denver has issued a
* Small Stream Flood Advisory for...
Southwestern Larimer County in north central Colorado...
* Until 215 PM MDT.
* At 1243 PM MDT, Doppler radar indicated heavy rain due to
thunderstorms. This will cause small stream flooding.
* Up to a quarter of an inch of rainfall will be possible in 15
minutes.
* Some locations that will experience flooding include...
Deer Ridge.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Heavy Rainfall will cause minor flooding of small creeks, streams,
and ditches in the East Troublesome burn area. Some areas affected
include the Spruce, Fern, and Mill Creek basins in Rocky Mountain
National Park and the Moraine Park area.
&&
LAT...LON 4039 10561 4035 10557 4033 10567 4033 10572
4036 10569
$$
Cooper
4 years, 9 months