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Hazardous Weather Outlook


HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
252 AM MDT SAT MAY 28 2016

WYZ001>020-022>030-291200-
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-CODY FOOTHILLS-
NORTH BIG HORN BASIN-SOUTHWEST BIG HORN BASIN-
SOUTHEAST BIG HORN 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-
252 AM MDT SAT MAY 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO WIDELY SCATTERED AFTERNOON AND EVENING
THUNDERSTORMS...MAINLY OVER THE NORTHERN MOUNTAINS...JOHNSON AND
NATRONA COUNTIES...AND NEAR A STALLED FRONT ACROSS FAR SOUTHERN
WYOMING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SUNDAY...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS OVER SOUTHWESTERN
WYOMING.

MEMORIAL DAY...ISOLATED TO SCATTERED THUNDERSTORMS MAINLY EAST OF
THE DIVIDE. A FEW STRONG TO SEVERE THUNDERSTORMS POSSIBLE ACROSS
JOHNSON COUNTY... WITH LARGE HAIL AND STRONG WIND GUSTS THE MAIN
THREAT.

TUESDAY...A FEW INCHES OF SNOW POSSIBLE OVER THE NORTHERN BIGHORN
RANGE...FROM POWDER RIVER PASS AND NORTHWARD...TUESDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.


$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
1102 AM MDT SAT MAY 28 2016

COZ030>051-291715-
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-
1102 AM MDT SAT MAY 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL
COLORADO.

.DAY ONE...TODAY AND TONIGHT

A ROUND OF SHOWERS AND THUNDERSTORMS IS EXPECTED TO DEVELOP OVER
THE FOOTHILLS AROUND MIDDAY AND THEN MOVE ACROSS THE DENVER AREA
AND EAST CENTRAL PLAINS OF COLORADO THROUGH THE EARLY AFTERNOON.
BRIEF MODERATE TO HEAVY RAIN...SMALL HAIL AND WIND GUSTS TO 40
MPH WILL BE THE PRIMARY THREATS FROM THE THUNDERSTORMS.
ANOTHER AREA OF THUNDERSTORMS WILL BE POSSIBLE OVER LARIMER AND
WELD COUNTIES BY 3 PM. ISOLATED THUNDERSTORMS WILL PROPAGATE
ACROSS THE REMAINDER OF NORTHEAST COLORADO THROUGH THE LATTER
PARTS OF THE AFTERNOON.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THE CHANCE FOR SHOWERS AND THUNDERSTORMS WILL GRADUALLY INCREASE
THROUGH TUESDAY OF NEXT WEEK...WITH THE BEST CHANCE FOR STORMS
MONDAY NIGHT AND TUESDAY WITH THE PASSAGE OF AN UPPER LEVEL STORM
SYSTEM. UNTIL THEN...A FEW THUNDERSTORMS IN ELBERT AND LINCOLN
COUNTIES AS WELL AS SOUTHERN SECTIONS OF WASHINGTON COUNTY MAY
BECOME STRONG ENOUGH LATE ON SUNDAY TO PRODUCE LARGE HAIL AND
STRONG GUSTY WINDS. TEMPERATURES WILL BE COOLER TUESDAY AND
WEDNESDAY FOLLOWING THE PASSAGE OF A COLD FRONT MONDAY NIGHT. DRY
AND WARMER CONDITIONS SHOULD RETURN FOR THE END OF THE WEEK WITH A
STRONG HIGH PRESSURE RIDGE BUILDING OVER THE REGION.

SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
814 AM MDT SAT MAY 28 2016

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-291300-
HARDING-PERKINS-BUTTE-NORTHERN MEADE CO PLAINS-ZIEBACH-
NORTHERN BLACK HILLS-NORTHERN FOOT HILLS-RAPID CITY-
SOUTHERN FOOT HILLS-CENTRAL BLACK HILLS-SOUTHERN BLACK HILLS-
CUSTER CO PLAINS-PENNINGTON CO PLAINS-HAAKON-FALL RIVER-
OGLALA LAKOTA-JACKSON-BENNETT-MELLETTE-TODD-TRIPP-
STURGIS/PIEDMONT FOOT HILLS-SOUTHERN MEADE CO PLAINS-
HERMOSA FOOT HILLS-
814 AM MDT SAT MAY 28 2016 /914 AM CDT SAT MAY 28 2016/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWESTERN
SOUTH DAKOTA...SOUTH CENTRAL SOUTH DAKOTA...SOUTHWESTERN SOUTH
DAKOTA...AND THE BLACK HILLS OF SOUTH DAKOTA.

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED
TODAY. SEVERE THUNDERSTORMS ARE NOT FORESEEN.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THUNDERSTORMS ARE POSSIBLE SUNDAY THROUGH WEDNESDAY. THERE IS A
SLIGHT RISK OF SEVERE THUNDERSTORMS WITH LARGE HAIL AND DAMAGING
WINDS ON MONDAY AFTERNOON AND EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...
OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
814 AM MDT SAT MAY 28 2016

WYZ054>058-071-291300-
NORTHERN CAMPBELL-SOUTHERN CAMPBELL-WESTERN CROOK-
WYOMING BLACK HILLS-WESTON-NORTHEASTERN CROOK-
814 AM MDT SAT MAY 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
WYOMING.

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED
TODAY. SEVERE THUNDERSTORMS ARE NOT EXPECTED.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THUNDERSTORMS ARE POSSIBLE SUNDAY THROUGH WEDNESDAY. ORGANIZED
SEVERE THUNDERSTORMS ARE NOT EXPECTED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...
OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
408 AM MDT SAT MAY 28 2016

NEZ002-003-019>021-054-055-095-096-291015-
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
408 AM MDT SAT MAY 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF PANHANDLE
NEBRASKA.

.DAY ONE...TODAY AND TONIGHT

SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER SOUTHEAST
WYOMING...AND SPREAD INTO THE WESTERN NEBRASKA PANHANDLE BY LATE
AFTERNOON AND EARLY EVENING. SEVERE WEATHER IS NOT EXPECTED.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SCATTERED THUNDERSTORMS ARE POSSIBLE ACROSS MUCH OF THE AREA ON
MONDAY AFTERNOON AND EVENING. A FEW SEVERE THUNDERSTORMS...WITH
POTENTIAL FOR LARGE HAIL AND STRONG WINDS...CANNOT BE RULED OUT
OVER THE WESTERN NEBRASKA PANHANDLE.

THE NORTH PLATTE RIVER WILL CONTINUE TO RUN HIGH DUE TO RUNOFF
FROM UPSTREAM RESERVOIR RELEASES. PRECIPITATION FROM SHOWERS AND
THUNDERSTORMS MAY CAUSE ADDITIONAL RISES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
408 AM MDT SAT MAY 28 2016

WYZ101>119-291015-
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-
408 AM MDT SAT MAY 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL
WYOMING...SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING.

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER
PORTIONS OF SOUTHEAST WYOMING THIS AFTERNOON AND EVENING. SEVERE
WEATHER IS NOT EXPECTED.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SCATTERED THUNDERSTORMS ARE POSSIBLE ACROSS MUCH OF THE AREA ON
MONDAY AFTERNOON AND EVENING. A FEW STRONG THUNDERSTORMS...WITH
SMALL HAIL AND GUSTY WINDS...COULD OCCUR OVER THE HIGH PLAINS.

SOUTHEAST WYOMING STREAMS WILL CONTINUE TO RUN HIGH FOR THE NEXT
SEVERAL DAYS. THOSE WITH OUTDOOR INTERESTS IN THE MOUNTAINS SHOULD
REMAIN ALERT FOR RAPID WATER RISES WHEN SHOWERS AND THUNDERSTORMS
ARE OCCURRING IN THE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
356 AM MDT SAT MAY 28 2016

COZ001>014-017>023-UTZ022>025-027>029-291200-
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-
356 AM MDT SAT MAY 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN
COLORADO.

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO SCATTERED MOUNTAIN CONVECTION IS EXPECTED TO DEVELOP
THROUGH THE AFTERNOON HOURS...THEN DECREASING BY SUNSET. THE
THREATS FROM THESE STORM INCLUDE OCCASIONAL TO FREQUENT
LIGHTNING...AND WIND GUSTS TO 40 MPH. BRIEF MODERATE RAINFALL AND
SMALL HAIL WILL ALSO BE POSSIBLE IN THE STRONGEST STORMS.

A FLASH FLOOD WATCH HAS ALSO BEEN ISSUED FOR THE WEST SALT CREEK
LANDSLIDE AND SALT CREEK ROAD IN MESA COUNTY THROUGH THIS
AFTERNOON DUE TO WATER LEVELS IN A SAG POND AT THE TOP OF THE
WEST CREEK LAND SLIDE.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

MAINLY AFTERNOON AND EARLY EVENING SHOWERS AND THUNDERSTORMS
REMAIN IN THE FORECAST THROUGH THE REMAINING HOLIDAY WEEKEND AND
BEYOND AS MOISTURE WILL GET WORKED ON BY DAYTIME HEATING. THESE
STORMS AND SHOWERS WILL BE FOCUSED OVER THE HIGHER ELEVATIONS BUT
A STRAY STORM OR TWO WILL SURVIVE INTO THE LOWER VALLEYS. GUSTY
WINDS AND LIGHTNING REMAIN THE MAIN THREATS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
312 AM MDT SAT MAY 28 2016

MTZ028>042-056>058-063>068-WYZ098-099-282315-
SOUTHERN WHEATLAND-MUSSELSHELL-TREASURE-NORTHERN ROSEBUD-CUSTER-
FALLON-NORTHERN STILLWATER-YELLOWSTONE-POWDER RIVER-CARTER-
SOUTHERN BIG HORN-EASTERN CARBON-NORTHERN PARK-
NORTHERN SWEET GRASS-GOLDEN VALLEY-RED LODGE FOOTHILLS-
NORTHERN BIG HORN-SOUTHERN ROSEBUD-JUDITH GAP-PARADISE VALLEY-
LIVINGSTON AREA-BEARTOOTH FOOTHILLS-ABSAROKA/BEARTOOTH MOUNTAINS-
CRAZY MOUNTAINS-NORTHEAST BIGHORN MOUNTAINS-SHERIDAN FOOTHILLS-
312 AM MDT SAT MAY 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
MONTANA...SOUTH CENTRAL MONTANA...SOUTHEAST MONTANA AND NORTH
CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER TODAY AND
TONIGHT IS LOW.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THE THREAT FOR THUNDERSTORMS ON MONDAY HAS INCREASED OVER THE PAST
24 HOURS. A FEW STORMS EAST OF ROSEBUD COUNTY MAY REACH SEVERE
LEVELS MONDAY AFTERNOON AND EVENING. ELSEWHERE SMALL HAIL AND
GUSTY WINDS WILL BE POSSIBLE WITH ANY STORMS. IN ADDITION TO THE
SEVERE THUNDERSTORM THREAT...HIGHER ELEVATION SNOWFALL IS
POSSIBLE WHICH MAY IMPACT THE BEARTOOTH HIGHWAY MONDAY INTO
TUESDAY. THOSE WITH OUTDOOR PLANS ON MEMORIAL DAY SHOULD STAY
ALERT TO THE LATEST FORECASTS THIS WEEKENDS FOR FURTHER DETAILS ON
POTENTIAL SEVERE STORMS.

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE