Severe Thunderstorm Warning 123, NWS Cheyenne, WY

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Hazardous Weather Outlook
National Weather Service Cheyenne WY
420 AM MDT Tue Jun 17 2025

NEZ002-003-019>021-054-055-095-096-WYZ101>119-181030-
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-
420 AM MDT Tue Jun 17 2025

This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.

.DAY ONE...TODAY AND TONIGHT

- Coverage of showers and thunderstorms will increase Tuesday
  with continued potential for scattered strong to severe
  thunderstorms and locally heavy rainfall.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

- A warming and drying trend takes over Wednesday through
  Saturday. Near record high temperatures are possible on Friday
  and Saturday.

.Spotter information statement...

Spotters are encouraged to report severe weather to the NWS.

Special Weather Statement
National Weather Service Cheyenne WY
1104 AM MDT Tue Jun 17 2025

WYZ103-106-115-116-171730-
South Laramie Range WY-
Central Laramie Range and Southwest Platte County WY-
North Laramie Range WY-Laramie Valley WY-
1104 AM MDT Tue Jun 17 2025

...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL ALBANY AND
SOUTHWESTERN PLATTE COUNTIES THROUGH 1130 AM MDT...

At 1104 AM MDT, Doppler radar was tracking a strong thunderstorm near
Sybille Canyon, or 30 miles north of Laramie, moving east at 10 mph.

HAZARD...Wind gusts up to 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Sybille Canyon and Flying X Ranch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 500 PM MDT for
southeastern Wyoming.

&&

LAT...LON 4161 10551 4185 10564 4196 10532 4170 10518
TIME...MOT...LOC 1704Z 248DEG 10KT 4175 10547

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

DS

Special Weather Statement
National Weather Service Cheyenne WY
1106 AM MDT Tue Jun 17 2025

WYZ110-115-171730-
North Snowy Range Foothills WY-Laramie Valley WY-
1106 AM MDT Tue Jun 17 2025

...A STRONG THUNDERSTORM WILL IMPACT CENTRAL ALBANY COUNTY THROUGH
1130 AM MDT...

At 1106 AM MDT, Doppler radar was tracking a strong thunderstorm 12
miles west of Bosler, or 22 miles northwest of Laramie, moving east
at 15 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 hail damage to vegetation is
         possible.

Locations impacted include...
Bosler.

This includes Interstate 80 in Wyoming between mile markers 284 and
298.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 500 PM MDT for
southeastern Wyoming.

&&

LAT...LON 4137 10606 4148 10606 4162 10591 4167 10568
      4140 10569
TIME...MOT...LOC 1706Z 251DEG 12KT 4153 10592

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

DS

Special Weather Statement
National Weather Service Cheyenne WY
1128 AM MDT Tue Jun 17 2025

WYZ106-115>117-171815-
South Laramie Range WY-
Central Laramie Range and Southwest Platte County WY-
South Laramie Range Foothills WY-Laramie Valley WY-
1128 AM MDT Tue Jun 17 2025

...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL ALBANY...
NORTHWESTERN LARAMIE AND SOUTHWESTERN PLATTE COUNTIES THROUGH 1215 PM
MDT...

At 1128 AM MDT, Doppler radar was tracking a strong thunderstorm near
Sybille Canyon, or 32 miles southwest of Wheatland, moving east at 10
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 hail damage to vegetation is
         possible.

Locations impacted include...
Sybille Canyon and Flying X Ranch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 500 PM MDT for
southeastern Wyoming.

&&

LAT...LON 4170 10569 4192 10557 4192 10520 4157 10521
TIME...MOT...LOC 1728Z 279DEG 10KT 4180 10550

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

DS

Special Weather Statement
National Weather Service Cheyenne WY
1130 AM MDT Tue Jun 17 2025

WYZ106-110-114>116-171815-
South Laramie Range WY-
Central Laramie Range and Southwest Platte County WY-
North Snowy Range Foothills WY-Laramie Valley WY-Snowy Range WY-
1130 AM MDT Tue Jun 17 2025

...STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN ALBANY COUNTY
THROUGH 1215 PM MDT...

At 1130 AM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles northwest of Bosler to 6 miles
northwest of Wild Horse Ranch to near Woods Landing-Jelm. Movement
was east at 15 mph.

HAZARD...Wind gusts of 50 to 55 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Albany, West Laramie, Antelope Buttes, Nine Mile, Bosler, Woods
Landing-Jelm, Harmony, Twin Buttes Lake, Sheep Mountain, Laramie
Regional Airport, Lake Hattie Reservoir, Wild Horse Ranch, and
Centennial.

This includes Interstate 80 in Wyoming between mile markers 287 and
310.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 500 PM MDT for
southeastern Wyoming.

&&

LAT...LON 4100 10607 4133 10609 4174 10585 4164 10546
      4136 10557 4125 10572 4100 10571 4099 10604
TIME...MOT...LOC 1730Z 265DEG 12KT 4166 10582 4135 10600 4102 10599

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...55 MPH

DS