Severe Thunderstorm Warning
Severe Weather Statement
National Weather Service Cheyenne WY
Issued by National Weather Service Rapid City SD
537 PM MDT Wed Jul 16 2025
WYC021-170015-
/O.CON.KCYS.SV.W.0239.000000T0000Z-250717T0015Z/
Laramie WY-
537 PM MDT Wed Jul 16 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM MDT
FOR SOUTHEASTERN LARAMIE COUNTY...
At 536 PM MDT, severe thunderstorms were located along a line
extending from 6 miles north of Hillsdale to 2 miles northeast of
Laramie County Fairgrounds at Archer to 2 miles east of Bison
Crossing, moving southeast at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Cheyenne, Pine Bluffs, Burns, Egbert, Laramie County Fairgrounds at
Archer, Hillsdale, Fox Farm-College, Winchester Hills, South Greeley
Highway, Pine Bluffs Municipal Airport, South Cheyenne, Carpenter,
Bison Crossing, Cheyenne Regional Airport, Ranchettes, Grass Hills,
and Cowboy Ranch South.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Intense thunderstorm lines can produce brief tornadoes and wind
damage. Although a tornado is not immediately likely, it is best to
move to an interior room on the lowest floor of a building. These
storms may cause serious injury and significant property damage.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4115 10481 4131 10462 4140 10443 4117 10405
4100 10405 4100 10485
TIME...MOT...LOC 2336Z 316DEG 27KT 4130 10447 4118 10463 4105 10476
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Sherburn
Severe Weather Statement
Severe Weather Statement
National Weather Service Cheyenne WY
Issued by National Weather Service Rapid City SD
537 PM MDT Wed Jul 16 2025
WYC021-170015-
/O.CON.KCYS.SV.W.0239.000000T0000Z-250717T0015Z/
Laramie WY-
537 PM MDT Wed Jul 16 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM MDT
FOR SOUTHEASTERN LARAMIE COUNTY...
At 536 PM MDT, severe thunderstorms were located along a line
extending from 6 miles north of Hillsdale to 2 miles northeast of
Laramie County Fairgrounds at Archer to 2 miles east of Bison
Crossing, moving southeast at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Cheyenne, Pine Bluffs, Burns, Egbert, Laramie County Fairgrounds at
Archer, Hillsdale, Fox Farm-College, Winchester Hills, South Greeley
Highway, Pine Bluffs Municipal Airport, South Cheyenne, Carpenter,
Bison Crossing, Cheyenne Regional Airport, Ranchettes, Grass Hills,
and Cowboy Ranch South.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Intense thunderstorm lines can produce brief tornadoes and wind
damage. Although a tornado is not immediately likely, it is best to
move to an interior room on the lowest floor of a building. These
storms may cause serious injury and significant property damage.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4115 10481 4131 10462 4140 10443 4117 10405
4100 10405 4100 10485
TIME...MOT...LOC 2336Z 316DEG 27KT 4130 10447 4118 10463 4105 10476
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Sherburn
Severe Thunderstorm Watch
SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 519
NWS STORM PREDICTION CENTER NORMAN OK
240 PM MDT WED JUL 16 2025
SEVERE THUNDERSTORM WATCH 519 IS IN EFFECT UNTIL 1000 PM MDT
FOR THE FOLLOWING LOCATIONS
COC001-005-009-011-013-014-017-025-031-035-039-041-059-061-063-
069-071-073-075-087-089-099-101-121-123-170400-
/O.NEW.KWNS.SV.A.0519.250716T2040Z-250717T0400Z/
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE BACA
BENT BOULDER BROOMFIELD
CHEYENNE CROWLEY DENVER
DOUGLAS ELBERT EL PASO
JEFFERSON KIOWA KIT CARSON
LARIMER LAS ANIMAS LINCOLN
LOGAN MORGAN OTERO
PROWERS PUEBLO WASHINGTON
WELD
$$
SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 519
NWS STORM PREDICTION CENTER NORMAN OK
240 PM MDT WED JUL 16 2025
SEVERE THUNDERSTORM WATCH 519 IS IN EFFECT UNTIL 1000 PM MDT
FOR THE FOLLOWING LOCATIONS
NEC105-170400-
/O.NEW.KWNS.SV.A.0519.250716T2040Z-250717T0400Z/
NE
. NEBRASKA COUNTIES INCLUDED ARE
KIMBALL
$$
SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 519
NWS STORM PREDICTION CENTER NORMAN OK
240 PM MDT WED JUL 16 2025
SEVERE THUNDERSTORM WATCH 519 IS IN EFFECT UNTIL 1000 PM MDT
FOR THE FOLLOWING LOCATIONS
WYC001-021-170400-
/O.NEW.KWNS.SV.A.0519.250716T2040Z-250717T0400Z/
WY
. WYOMING COUNTIES INCLUDED ARE
ALBANY LARAMIE
$$
ATTN...WFO...BOU...CYS...PUB...GLD...
Special Weather Statement
Special Weather Statement
National Weather Service Riverton WY
Issued by National Weather Service Billings MT
541 PM MDT Wed Jul 16 2025
WYZ019-030-170045-
East Sweetwater County WY-Green Mountains and Rattlesnake Range
WY-
541 PM MDT Wed Jul 16 2025
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN SWEETWATER COUNTY
UNTIL 645 PM MDT...
At 541 PM MDT, Doppler radar was tracking a strong thunderstorm 15
miles northeast of Creston Junction, or 27 miles northeast of
Wamsutter, moving east at 30 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Creston Junction.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the weather situation closely and be alert for threatening
weather conditions.
&&
LAT...LON 4174 10831 4206 10836 4212 10752 4209 10752
4209 10750 4174 10751 4167 10751
TIME...MOT...LOC 2340Z 261DEG 42KT 4189 10754
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 TO 55 MPH
$$
Torgerson
Special Weather Statement
National Weather Service Cheyenne WY
Issued by National Weather Service Rapid City SD
533 PM MDT Wed Jul 16 2025
WYZ109-113-170000-
Upper North Platte River Basin WY-Central Carbon County WY-
533 PM MDT Wed Jul 16 2025
...STRONG THUNDERSTORMS WILL IMPACT CENTRAL CARBON COUNTY THROUGH 600
PM MDT...
At 532 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 13 miles north of Creston Junction to 12 miles
west of Rawlins to 4 miles west of Teton Reservoir. Movement was east
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...
Rawlins, Sinclair, Rawlins Municipal Airport, Dugway Campground,
Separation Lake, Rim Lake, Teton Reservoir, and Carbon County
Fairgrounds.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4202 10751 4204 10749 4209 10727 4190 10699
4153 10693 4158 10745 4166 10751
TIME...MOT...LOC 2332Z 258DEG 28KT 4192 10779 4185 10745 4162 10735
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
$$
Sherburn
Special Weather Statement
National Weather Service Cheyenne WY
Issued by National Weather Service Rapid City SD
519 PM MDT Wed Jul 16 2025
WYZ103-105-162345-
Shirley Basin WY-North Laramie Range WY-
519 PM MDT Wed Jul 16 2025
...A STRONG THUNDERSTORM WILL IMPACT NORTH CENTRAL ALBANY AND SOUTH
CENTRAL CONVERSE COUNTIES THROUGH 545 PM MDT...
At 518 PM MDT, Doppler radar was tracking a strong thunderstorm 6
miles south of Campbell Creek Campground, or 35 miles southwest of
Douglas, moving east at 25 mph.
HAZARD...Half inch hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vegetation is possible.
This storm will remain over mainly rural areas of north central
Albany and south central Converse Counties to the northwest of
Garrett.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 1000 PM MDT for
southeastern Wyoming.
&&
LAT...LON 4229 10598 4238 10601 4249 10567 4231 10560
TIME...MOT...LOC 2318Z 249DEG 23KT 4236 10585
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...<30 MPH
$$
Sherburn
Air Quality Alert
COC014-069-031-035-001-123-059-005-013-172200-
Broomfield-Larimer-Denver-Douglas-Adams-Weld-Jefferson-
Arapahoe-Boulder-
410 PM MDT Wed Jul 16 2025
...OZONE ACTION DAY ALERT FROM 400 PM WEDNESDAY UNTIL 400 PM
THURSDAY...
The Colorado Department of Public Health and Environment has
issued the following...
WHAT...Ozone Action Day Alert.
WHERE...Douglas, Jefferson, Denver, western Arapahoe, western
Adams, Broomfield, Boulder, Larimer, and Weld Counties
WHEN...400 PM Wednesday July 16 to 400 PM Thursday July 17
IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor. Ozone will remain in the Good to Moderate
range on Wednesday. Warming temperatures and light winds may allow
ozone to reach levels that are Unhealthy for Sensitive Groups on
Thursday. The highest concentrations are expected along the
western portions of the northern Front Range, from western Denver
northward to Fort Collins. For Colorado air quality conditions,
forecasts, and advisories, visit:
https://www.colorado.gov/airquality/colorado_summary.aspx If
possible, please help us reduce ozone pollution by limiting
driving gas and diesel-powered vehicles until at least 4 p.m.
Thursday, July 17, 2025. Colorado is also addressing ozone
pollution through state policies. For more information about
health impacts and how ozone pollution forms in Colorado, visit:
https://cdphe.colorado.gov/ozone- pollution-and-your-health
HEALTH INFORMATION...Increasing likelihood of respiratory symptoms
and breathing discomfort in active children and adults and people
with lung disease, such as asthma. Active children and adults, and
people with lung disease, such as asthma, should reduce prolonged
or heavy outdoor exertion.
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Cheyenne WY
Issued by National Weather Service Rapid City SD
102 PM MDT Wed Jul 16 2025
NEZ002-003-019>021-054-055-095-096-WYZ101>119-171915-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
102 PM MDT Wed Jul 16 2025
This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.
.DAY ONE...THIS AFTERNOON AND TONIGHT
- Scattered strong to severe thunderstorms are expected this
afternoon and evening in southeast Wyoming and southwest
Nebraska. Large hail is the primary threat, but all severe
weather hazards are possible.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
- Warmer temperatures and isolated to scattered late day showers
and thunderstorms will occur for Thursday through early next
week.
.Spotter information statement...
Spotters are encouraged to report severe weather to the National
Weather Service in Cheyenne.
$$
Hazardous Weather Outlook
National Weather Service Riverton WY
Issued by National Weather Service Billings MT
1228 PM MDT Wed Jul 16 2025
WYZ001>020-022>030-172230-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-Bighorn Mountains West-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-Teton and Gros Ventre Mountains-
Jackson Hole-Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
1228 PM MDT Wed Jul 16 2025
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...This afternoon and tonight.
Isolated across mainly Sweetwater and eventually southern Natrona
County will be capable of gusty outflow wind 35 to 45 mph into the
mid-evening hours.
Elevated to near critical fire weather conditions exist across
southwest Wyoming until 8 PM.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Isolated to scattered afternoon and evening showers and thunderstorm
chances
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
Hazardous Weather Outlook
National Weather Service Rapid City SD
1054 AM MDT Wed Jul 16 2025
SDZ001-002-012>014-024>032-041>044-046-047-049-072>078-WYZ054>060-
171300-
Harding-Northern Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Black Hills-Northern Foothills-Rapid City-
Southern Foothills-Central Black Hills-Southern Black Hills-
Custer Co Plains-Pennington Co Plains-Haakon-Western Fall River-
Northern Oglala Lakota-Northern Jackson-Bennett-Mellette-Todd-
Tripp-Sturgis/Piedmont Foothills-Southern Meade Co Plains-
Hermosa Foothills-Eastern Fall River-Southern Oglala Lakota-
Southern Jackson-Southern Perkins-Northern Campbell-
Southern Campbell-Western Crook-Wyoming Black Hills-
Weston County Plains-Newcastle-Northeastern Crook-
1054 AM MDT Wed Jul 16 2025 /1154 AM CDT Wed Jul 16 2025/
This Hazardous Weather Outlook is for portions of western South
Dakota and northeastern Wyoming.
.DAY ONE...Today and Tonight
Widespread rain and isolated thunderstorms are possible through
this evening, but severe thunderstorms are not expected.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
Thunderstorms may occur Thursday night through early next week.
Organized severe thunderstorms are not expected Thursday night or
Friday, but isolated strong to severe thunderstorms could occur
over the weekend into early next week.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today.
&&
Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity
$$
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
926 AM MDT Wed Jul 16 2025
COZ030>051-171530-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
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-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
926 AM MDT Wed Jul 16 2025
This hazardous weather outlook is for northeast and north central
Colorado.
.DAY ONE...Today and Tonight
Scattered showers and thunderstorms expected today across our
area, with the chance for some storms to become strong to severe
along the I-25 corridor. The severity of today`s storms will be
dependent on how much sunshine we get. Hail the size of ping pong
balls are the main threat. However, localized flooding, damaging
winds and an isolated tornado are possible. Best chance for severe
weather in the Denver metro will be between 2-6 PM.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
90+ degree temperatures are expected to return by Friday. There
will be daily chances of showers and thunderstorms through the
weekend.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today or tonight.
$$
Hazardous Weather Outlook
National Weather Service Grand Junction CO
310 AM MDT Wed Jul 16 2025
COZ001>014-017>023-UTZ022>025-027>029-170915-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley-
Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-
Southwest San Juan Mountains-Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
310 AM MDT Wed Jul 16 2025
This Hazardous Weather Outlook is for northwest Colorado, southwest
Colorado, west central Colorado, east central Utah, northeast Utah
and southeast Utah.
.DAY ONE...Today and tonight.
Hot and dry conditions keep temperatures trending a few degrees
above average. Scattered showers and isolated thunderstorms on the
terrain increase this afternoon with dry lightning and gusty outflows
possible under collapsing storms. Wildfire smoke will remain visible
across the central and southern areas of the CWA.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Hot and dry conditions continue into early next week. Afternoon
showers and storms on terrain will remain in the forecast with
increasing in coverage through Saturday. Conditions dry out Sunday
into early next week with a return of near critical fire weather
conditions. Wildfire smoke will remain visible for much of eastern
Utah and western Colorado though the wetting rains could help
diminish smoke.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
