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Special Weather Statement


SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
425 PM MDT THU APR 24 2014

NEZ002-003-019>021-054-055-095-096-WYZ101>119-251300-
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-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-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE...DOUGLAS...GLENROCK...LUSK...MUDDY GAP...
MEDICINE BOW...BORDEAUX...GLENDO...WHEATLAND...CHUGWATER...
GUERNSEY...TORRINGTON...RAWLINS...SINCLAIR...HANNA...ARLINGTON...
ELK MOUNTAIN...BAGGS...DIXON...SARATOGA...ENCAMPMENT...
RIVERSIDE...CENTENNIAL...ALBANY...WOODS LANDING...LARAMIE...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER...CHEYENNE...BURNS...CARPENTER...ALBIN...PINE BLUFFS
425 PM MDT THU APR 24 2014

...UNSETTLED WEATHER TO RETURN TO SOUTHEAST WYOMING AND THE
WESTERN NEBRASKA PANHANDLE THIS WEEKEND...

A STRONG SPRING STORM SYSTEM WILL BRING A PERIOD OF UNSETTLED
WEATHER TO SOUTHEAST WYOMING AND THE WESTERN NEBRASKA PANHANDLE
BEGINNING LATE SATURDAY. THERE IS A GOOD CHANCE FOR RAIN AND A
FEW THUNDERSTORMS ON SATURDAY AFTERNOON AHEAD OF A PACIFIC COLD
FRONT THAT WILL SLOWLY MOVE EAST ACROSS THE FORECAST AREA SATURDAY
NIGHT AND SUNDAY. RAIN IS EXPECTED TO CHANGE TO SNOW IN THE
MOUNTAINS ABOVE 8500 FEET SATURDAY NIGHT...WITH SNOW BEGINNING TO
MIX WITH RAIN DOWN TO THE VALLEY FLOORS THROUGH THIS TIME AS WELL.
THE CHANGEOVER TO ALL SNOW IN THE VALLEYS LOOKS TO OCCUR MORESO ON
SUNDAY MORNING. SNOWFALL RATES IN THE HIGHER ELEVATIONS COULD BE
MODERATE TO HEAVY AT TIMES LATE SATURDAY NIGHT THROUGH
SUNDAY...WITH SOME ACCUMULATION EXPECTED IN THE VALLEYS AS WELL.

ACROSS THE PLAINS OF SOUTHEAST WYOMING AND THE WESTERN NEBRASKA
PANHANDLE...LIGHT TO MODERATE RAIN IS EXPECTED SATURDAY NIGHT
THROUGH SUNDAY AFTERNOON WITH A GRADUAL CHANGEOVER TO SNOW
OCCURRING SUNDAY EVENING AND SUNDAY NIGHT BEHIND THE FRONT. TOTAL
SNOW ACCUMULATIONS ARE VERY UNCERTAIN AT THIS TIME AS THE
CHANGEOVER TO SNOW WILL DEPEND HEAVILY ON THE MOVEMENT OF THE COLD
FRONT.

IN ADDITION...NORTHWEST WINDS WILL BECOME STRONG AND GUSTY BEHIND
THE FRONT...AND WILL PERSIST THROUGH EARLY NEXT WEEK ESPECIALLY
DURING THE DAYTIME HOURS.

THE STORM SYSTEM WILL SLOWLY MOVE TO THE EAST ON MONDAY BUT WILL
REMAIN OVER THE CENTRAL GREAT PLAINS FOR MUCH OF NEXT WEEK.
AS A RESULT...EXPECT COOL...WINDY...AND WET CONDITIONS TO REMAIN
IN THE FORECAST THROUGH AT LEAST MIDWEEK. MOTORISTS PLANNING
TRAVEL OR OTHERS PLANNING OUTDOOR ACTIVITIES THIS WEEKEND MAY WANT
ADJUST PLANS ACCORDINGLY AS THIS UNSETTLED WEATHER RETURNS TO THE
REGION.

$$

RJM


Hazardous Weather Outlook


HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
747 PM CDT THU APR 24 2014

IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ038>040-050-052>071-260100-
LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-LINCOLN-MURRAY-COTTONWOOD-NOBLES-JACKSON-
PIPESTONE-ROCK-DIXON-DAKOTA-BEADLE-KINGSBURY-BROOKINGS-GREGORY-
JERAULD-SANBORN-MINER-LAKE-MOODY-BRULE-AURORA-DAVISON-HANSON-
MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-BON HOMME-
YANKTON-UNION-
747 PM CDT THU APR 24 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
IOWA...SOUTHWEST MINNESOTA...NORTHEAST NEBRASKA...EAST CENTRAL
SOUTH DAKOTA...SOUTH CENTRAL SOUTH DAKOTA AND SOUTHEAST SOUTH
DAKOTA.

.DAY ONE...TONIGHT

HAZARDOUS WEATHER IS NOT EXPECTED.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

STRONG EAST TO SOUTHEAST WINDS GUSTING 30 TO 40 MPH MAY DEVELOP
SATURDAY. THESE WINDS COULD ALSO CAUSE A VERY HIGH FIRE DANGER.

SHOWERS AND THUNDERSTORMS ARE LIKELY SATURDAY NIGHT INTO SUNDAY. A
FEW OF THESE STORMS COULD BE SEVERE...MAINLY SOUTH OF INTERSTATE 90.
HAIL UP TO HALF DOLLAR SIZE WILL BE THE BIGGEST THREAT...ALTHOUGH A
FEW WIND GUSTS TO 60 MPH ARE POSSIBLE IN ANY STRONGER STORM ALONG THE
MISSOURI RIVER CORRIDOR.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TONIGHT.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
1045 AM MDT THU APR 24 2014

COZ030>051-251645-
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-
1045 AM MDT THU APR 24 2014

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

.DAY ONE...TODAY AND TONIGHT

IT WILL BE DRY AND MILD TODAY. WEST TO NORTHWEST WINDS WILL GUST
TO 30 MPH ALONG THE WYOMING BORDER AND NORTHEAST PLAINS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

IT WILL BE DRY AND WARM WITH ABOVE NORMAL TEMPERATURES...
INCREASING WINDS...AND HIGHER FIRE DANGER OVER THE EASTERN PLAINS
ON FRIDAY AND EVEN MORE SATURDAY...MAINLY SOUTHEAST OF A LINE FROM
STERLING TO LIMON DUE TO STRONG SOUTHERLY WINDS AND LOW HUMIDITY.

BY SATURDAY AFTERNOON AND EVENING...A STRONG STORM SYSTEM MAY
BEGIN TO IMPACT THE AREA. FAR NORTHEAST COLORADO COULD SEE
CONVECTION SATURDAY NIGHT INTO SUNDAY MORNING WITH A SEVERE STORM
POSSIBLE...BUT THE MAIN THREAT OF ANY SEVERE WEATHER SHOULD STAY
FARTHER EAST INTO THE CENTRAL PLAINS STATES. IN THE MOUNTAINS...
HEAVY SNOWFALL WILL BE POSSIBLE SATURDAY NIGHT THROUGH SUNDAY
ALONG WITH BLOWING SNOW AND HAZARDOUS WINTER DRIVING CONDITIONS.
IN LOWER ELEVATIONS...LOOK FOR A GOOD CHANCE OF RAIN SHOWERS AND A
FEW THUNDERSTORMS...WITH TEMPERATURES TURNING COLD ENOUGH FOR A
LITTLE SNOW POSSIBLY MIXED IN SUNDAY EVENING INTO THE NIGHT.

COOL WEATHER WILL THEN PERSIST THROUGH THE MIDDLE OF NEXT WEEK
ALONG WITH A SMALL CHANCE OF SHOWERS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.

$$
D_L/KRIEDERMAN

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
632 AM MDT THU APR 24 2014

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-251300-
BENNETT-BUTTE-CENTRAL BLACK HILLS-CUSTER CO PLAINS-FALL RIVER-HAAKON-
HARDING-HERMOSA FOOT HILLS-JACKSON-MELLETTE-NORTHEASTERN CROOK-
NORTHERN BLACK HILLS-NORTHERN CAMPBELL-NORTHERN FOOT HILLS-
NORTHERN MEADE CO PLAINS-PENNINGTON CO PLAINS-PERKINS-RAPID CITY-
SHANNON-SOUTHERN BLACK HILLS-SOUTHERN CAMPBELL-SOUTHERN FOOT HILLS-
SOUTHERN MEADE CO PLAINS-STURGIS/PIEDMONT FOOT HILLS-TODD-TRIPP-
WESTERN CROOK-WESTON-WYOMING BLACK HILLS-ZIEBACH-
632 AM MDT (732 AM CDT) THU APR 24 2014

...RED FLAG WARNING THIS AFTERNOON FOR SOUTH CENTRAL SOUTH DAKOTA...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND
NORTHEASTERN WYOMING.

.DAY ONE...TODAY AND TONIGHT

A LOW PRESSURE SYSTEM TO THE NORTH OF THE AREA WILL BRING GUSTY WINDS
AND DRY AIR TO THE AREA TODAY. WEST TO NORTHWEST WINDS OF 15 TO 30
MPH...WITH HIGHER GUSTS...CAN BE EXPECTED FROM NORTHWEST INTO SOUTH
CENTRAL SD. THE DRY AIR AND MILD TEMPERATURES WILL ALLOW RELATIVE
HUMIDITIES TO DROP TO NEAR 15 PERCENT ACROSS SOUTH CENTRAL SOUTH
DAKOTA...WITH MINIMUM VALUES RANGING FROM AROUND 20 PERCENT TO 25
PERCENT ELSEWHERE. THE COMBINATION OF WIND AND LOW HUMIDITY WILL
LIKELY RESULT IN A PERIOD OF CRITICAL FIRE WEATHER CONDITIONS DURING
THE AFTERNOON OVER SOUTH CENTRAL SOUTH DAKOTA.

THE GRASSLAND FIRE DANGER INDEX WILL BE IN THE EXTREME CATEGORY
ACROSS MOST OF THE WESTERN AND SOUTH CENTRAL SOUTH DAKOTA PLAINS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THE NEXT STORM SYSTEM WILL AFFECT THE AREA OVER THE WEEKEND AND INTO
EARLY NEXT WEEK. THERE IS A LOT OF UNCERTAINTY RIGHT NOW WITH REGARD
TO THE TRACK OF THIS SYSTEM...BUT PRECIPITATION DOES LOOK LIKELY OVER
THE AREA...ESPECIALLY FROM SATURDAY NIGHT INTO MONDAY. SHOWERS AND
THUNDERSTORMS WILL DEVELOP SATURDAY AFTERNOON AND NIGHT. SEVERE
THUNDERSTORMS ARE NOT EXPECTED AT THIS TIME...BUT GUSTY WINDS AND
HEAVY RAINFALL LOOK POSSIBLE WITH THE STRONGER STORMS. RAINFALL IS
EXPECTED THROUGH AT LEAST SUNDAY...WITH SOME COLDER AIR MOVING INTO
THE REGION SUNDAY NIGHT AND MONDAY. TEMPERATURES COULD BECOME COLD
ENOUGH FOR SOME SNOWFALL ACROSS NORTHEAST WYOMING AND FAR WESTERN
SOUTH DAKOTA LATER SUNDAY NIGHT...ESPECIALLY THE HIGHER ELEVATIONS.
STRONG WINDS ARE ALSO POSSIBLE BY EARLY NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

&&

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

$$

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