Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Rapid City SD
440 AM MDT Fri Jul 18 2025
SDZ001-002-012>014-024-025-031-032-042-043-046-072-073-077-078-
WYZ056-057-060-191300-
Harding-Northern Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Black Hills-Northern Foothills-Pennington Co Plains-
Haakon-Northern Oglala Lakota-Northern Jackson-Mellette-
Sturgis/Piedmont Foothills-Southern Meade Co Plains-
Southern Jackson-Southern Perkins-Western Crook-
Wyoming Black Hills-Northeastern Crook-
440 AM MDT Fri Jul 18 2025 /540 AM CDT Fri Jul 18 2025/
This Hazardous Weather Outlook is for portions of western South
Dakota and northeastern Wyoming.
.DAY ONE...Today and Tonight
There is a marginal risk (level 1 of 5) of severe thunderstorms
from about 400 PM to 1000 PM today, meaning that isolated severe
storms are possible. Primary hazards include large hail and
damaging winds.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
There is a marginal risk (level 1 of 5) of severe thunderstorms
Saturday afternoon and evening with the main hazard of large hail
and damaging winds.
There is a marginal risk (level 1 of 5) of severe thunderstorms
Sunday afternoon and evening over northwest into south-central
South Dakota. The main hazards will be large hail and damaging
winds.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed today.
&&
Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity
$$
Hazardous Weather Outlook
National Weather Service Rapid City SD
440 AM MDT Fri Jul 18 2025
SDZ026>030-041-044-047-049-074>076-WYZ054-055-058-059-191300-
Rapid City-Southern Foothills-Central Black Hills-
Southern Black Hills-Custer Co Plains-Western Fall River-Bennett-
Todd-Tripp-Hermosa Foothills-Eastern Fall River-
Southern Oglala Lakota-Northern Campbell-Southern Campbell-
Weston County Plains-Newcastle-
440 AM MDT Fri Jul 18 2025 /540 AM CDT Fri Jul 18 2025/
This Hazardous Weather Outlook is for portions of western South
Dakota and northeastern Wyoming.
.DAY ONE...Today and Tonight
Isolated to scattered thunderstorms will develop tonight and while
organized severe thunderstorms are not expected, a few strong
storms with hail and gusty winds will occur.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
There is a marginal risk (level 1 of 5) of severe thunderstorms
Saturday afternoon and evening with the main hazard of large hail
and damaging winds.
There is a marginal risk (level 1 of 5) of severe thunderstorms
Sunday afternoon and evening over northwest into south-central
South Dakota. The main hazards will be large hail and damaging
winds.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today.
&&
Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity
$$
Hazardous Weather Outlook
National Weather Service Riverton WY
257 AM MDT Fri Jul 18 2025
WYZ001>020-022>030-191300-
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-
257 AM MDT Fri Jul 18 2025
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and tonight.
Thunderstorms are expected this afternoon and evening with a few
being strong to severe east of the Divide, especially across the
Bighorn Basin and Johnson County. The primary hazards will be gusty
winds up to 60 mph and isolated small hail.
Dry thunderstorms, capable of 50 mph gusty outflows, are possible
across the Wind Corridor and central Wyoming early this afternoon.
A few hours of elevated to critical fire weather conditions are
possible across eastern Sweetwater County early this afternoon.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Isolated to scattered afternoon and evening shower and thunderstorm
chances each day.
Elevated to critical fire weather conditions Sunday through Thursday.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
