weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Extreme Fire Danger


RANGELAND FIRE DANGER STATEMENT
NATIONAL WEATHER SERVICE RAPID CITY SD
320 AM MDT SUN APR 20 2014

...EXTREME GRASSLAND FIRE DANGER ACROSS PORTIONS OF WEST CENTRAL
   SOUTH DAKOTA...

.DISCUSSION...SKIES WILL BE MOSTLY SUNNY THROUGH THE MIDDAY
HOURS...WITH SOME INCREASE IN CLOUDS DURING THE AFTERNOON AS A
WEAK COLD FRONT MOVES THROUGH. THERE IS A SLIGHT CHANCE FOR
SHOWERS AND THUNDERSTORMS LATE THIS AFTERNOON ACROSS SOUTH CENTRAL
SOUTH DAKOTA. HIGH TEMPERATURES WILL BE IN THE 70S...WITH RELATIVE
HUMIDITIES DROPPING TO 20 TO 35 PERCENT IN THE AFTERNOON...LOWEST
VALUES OVER WEST CENTRAL SOUTH DAKOTA. WINDS WILL BE FROM THE
SOUTH TO SOUTHEAST AT 5 TO 15 MPH IN THE MORNING...THEN SWITCH TO
THE NORTHWEST AND INCREASE TO 15 TO 25 MPH DURING THE AFTERNOON IN
MOST AREAS EXCEPT FAR SOUTH CENTRAL SOUTH DAKOTA.

SDZ012-031-072-073-210100-
BUTTE-PENNINGTON CO PLAINS-STURGIS/PIEDMONT FOOT HILLS-
SOUTHERN MEADE CO PLAINS-
INCLUDING THE CITIES OF...BELLE FOURCHE...WALL...STURGIS...
UNION CENTER
320 AM MDT SUN APR 20 2014

...EXTREME FIRE DANGER...

THE GRASSLAND FIRE DANGER INDEX WILL REACH THE EXTREME CATEGORY
THIS AFTERNOON. EXTREME WEATHER CONDITIONS OR A VERY LOW
MOISTURE CONTENT OF GRASSES...AND OTHER DRY ORGANIC MATERIAL
ON THE GROUND...INDICATE THAT CRITICAL BURNING CONDITIONS EXIST.
A FIRE WILL START EASILY AND HAS THE POTENTIAL TO BECOME LARGE
AND SPREAD QUICKLY BECOMING ERRATIC WITH EXTREME BEHAVIORAL
CHARACTERISTICS. NO OUTDOOR BURNING SHOULD TAKE PLACE.

THE OUTLOOK FOR MONDAY AFTERNOON...THE GRASSLAND FIRE DANGER
INDEX WILL REACH THE HIGH CATEGORY TO VERY HIGH CATEGORY.


$$


Hazardous Weather Outlook


HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
311 PM MDT SUN APR 20 2014

MTZ028>042-056>058-063>068-WYZ098-099-212115-
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 BIG HORN MOUNTAINS-SHERIDAN FOOTHILLS-
311 PM MDT SUN APR 20 2014

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

ELEVATED FIRE DANGER WILL CONTINUE THROUGH SUNSET DUE TO WARM...
DRY AND BREEZY CONDITIONS.

WARM WEATHER IS CAUSING SOME MOUNTAIN SNOWMELT...AND MINOR RISES
WILL OCCUR ON SOME RIVERS AND STREAMS TONIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

ABOVE NORMAL TEMPERATURES ARE EXPECTED THROUGH TUESDAY. THIS WILL
LEAD TO INCREASED MOUNTAIN SNOWMELT AND RISING WATER LEVELS ON
SOME RIVERS AND STREAMS.

A FEW THUNDERSTORMS ARE POSSIBLE TUESDAY AFTERNOON AND TUESDAY
NIGHT AS A PACIFIC STORM SYSTEM CROSSES THE AREA.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

$$

CJS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
635 AM MDT SUN APR 20 2014

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-211300-
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-
635 AM MDT (735 AM CDT) SUN APR 20 2014

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

.DAY ONE...TODAY AND TONIGHT

ISOLATED THUNDERSTORMS ARE POSSIBLE LATE THIS AFTERNOON AND EVENING
OVER SOUTH CENTRAL SOUTH DAKOTA AS A WEAK COLD FRONT CROSSES THE
AREA. STORMS ARE NOT ANTICIPATED TO BECOME SEVERE...BUT A STRONG
STORM OR TWO IS POSSIBLE WITH GUSTY WINDS AND SMALL HAIL.

THE GRASSLAND FIRE DANGER INDEX WILL BE IN THE EXTREME CATEGORY THIS
AFTERNOON ACROSS PORTIONS OF THE WEST CENTRAL SOUTH DAKOTA PLAINS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE IS A CHANCE FOR THUNDERSTORMS TUESDAY AFTERNOON AND EVENING...
AS WELL AS WEDNESDAY AFTERNOON AND EVENING...WHEN AN UPPER LEVEL
SYSTEM MOVES INTO THE REGION.  WIDESPREAD SEVERE THUNDERSTORMS ARE
NOT EXPECTED AT THIS TIME.

GUSTY WINDS ARE LIKELY ACROSS MUCH OF THE AREA TUESDAY THROUGH
THURSDAY...ESPECIALLY DURING THE LATE MORNING THROUGH EARLY EVENING
HOURS. THE STRONGEST WINDS ARE EXPECTED TO BE ON THURSDAY...BEHIND
THE PASSAGE OF A COLD FRONT...WHEN WINDS COULD GUST OVER 50 MPH
ACROSS THE WESTERN SOUTH DAKOTA PLAINS.

.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

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
500 AM MDT SUN APR 20 2014

WYZ001>020-022>030-211100-
ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST-
BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS-
EAST SWEETWATER COUNTY-FLAMING GORGE-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS-
NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN-
NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS-
ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES-
SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN-
SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY-
TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN-
UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN-
WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST-
YELLOWSTONE NATIONAL PARK-
500 AM MDT SUN APR 20 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

ISOLATED THUNDERSTORMS POSSIBLE SOUTH OF A MARBLETON TO KAYCEE LINE
THIS AFTERNOON AND EVENING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

MONDAY NIGHT AND TUESDAY...INCREASING RAIN SHOWERS AND THUNDERSTORMS
IN THE WEST.  VERY WARM AND WINDY CONDITIONS ACROSS THE CENTRAL AND
SOUTH TUESDAY WITH INCREASING CHANCES FOR SHOWERS AND THUNDERSTORMS
TUESDAY AFTERNOON AND EVENING MAY RESULT IN RAPID SNOWMELT AND
SIGNIFICANT RISES IN CREEKS AND STREAMS. THE WARM AND WINDY
CONDITIONS IN THE CENTRAL AND SOUTH WILL ALSO RESULT IN AN ELEVATED
FIRE DANGER. SIGNIFICANT SNOW SHOWERS IN THE WESTERN MOUNTAINS
BEGINNING LATE TUESDAY NIGHT.

WEDNESDAY AND WEDNESDAY NIGHT...SIGNIFICANT SNOW ACCUMULATIONS
POSSIBLE IN THE NORTHERN AND WESTERN MOUNTAINS. STRONG DOWNSLOPE
WINDS LIKELY ACROSS CENTRAL AND SOUTHERN WYOMING EARLY WEDNESDAY
MORNING INTO WEDNESDAY AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

$$

TEAM RIVERTON

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE POCATELLO ID
319 AM MDT SUN APR 20 2014

IDZ017>025-031-032-210930-
EASTERN MAGIC VALLEY-SAWTOOTH MOUNTAINS-UPPER SNAKE HIGHLANDS-
UPPER SNAKE RIVER PLAIN-LOWER SNAKE RIVER PLAIN-
SOUTH CENTRAL HIGHLANDS-CARIBOU HIGHLANDS-
CACHE VALLEY/IDAHO PORTION-WASATCH MOUNTAINS/IDAHO PORTION-
BIG AND LITTLE WOOD RIVER REGION-LOST RIVER/PAHSIMEROI-
319 AM MDT SUN APR 20 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO.

.DAY ONE...TODAY AND TONIGHT

WINDS WILL BE BREEZY THIS MORNING. WIDESCALE IMPACTS ARE NOT
EXPECTED...BUT LOCALIZED AREAS OF BLOWING DUST ARE POSSIBLE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A SIGNIFICANT CHANGE IN THE WEATHER PATTERN WILL BRING SHOWERS AND
POSSIBLY THUNDERSTORMS TO THE REGION TUESDAY AND MAY LAST THROUGH
THURSDAY. SNOW LEVELS COULD BEGIN DROPPING TO 4500 FT BY TUESDAY
NIGHT THOUGH WE ARE NOT ANTICIPATING MUCH SNOW ACCUMULATION AT
THIS TIME...BUT THIS SYSTEM MAY BRING GUSTY WINDS TO THE AREA.

.SPOTTER INFORMATION STATEMENT...

WE ASK TRAINED SPOTTERS AND CITIZENS TO REPORT SIGNIFICANT
WEATHER CONDITIONS WHEN IT IS SAFE TO DO SO. THESE CONDITIONS MAY
INCLUDE HAIL...TORNADOES...STRONG WIND...DUST STORMS...SNOWFALL...
EXTREME COLD TEMPERATURES...FREEZING RAIN OR HEAVY RAIN...DENSE
FOG...AND FLOODING OR ICE JAMS. INFORMATION ABOUT THESE HAZARDOUS
CONDITIONS SHOULD BE CALLED INTO YOUR NATIONAL WEATHER SERVICE
OFFICE IN POCATELLO USING THE 1-800 SEVERE WEATHER HOTLINE...OR
208-233-0834.

$$


Hydrologic Outlook


HYDROLOGIC OUTLOOK
MTZ008>015-044>055-220000-

HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE GREAT FALLS MT
230 PM MDT SUN APR 20 2014

...WARMER TEMPERATURES EARLY THIS WEEK TO BE FOLLOWED BY THE
POTENTIAL FOR WIDESPREAD PRECIPITATION AND RAIN ON SNOWPACK BY MID
WEEK...

WARMER TEMPERATURES ARE EXPECTED EARLY THIS WEEK BEFORE A PERIOD OF
COOLER AND WETTER CONDITIONS BY THE MIDDLE TO LATER PART OF THE
WEEK. AFTERNOON TEMPERATURES THROUGH TUESDAY WILL CLIMB INTO THE 60S
AT LOWER ELEVATIONS AND INTO THE 40S AND 50S IN THE MOUNTAINS.
OVERNIGHT LOWS AT MID-ELEVATIONS WILL REMAIN ABOVE FREEZING EACH
NIGHT. THIS WILL CAUSE AN INCREASE IN MOUNTAIN SNOWMELT WITH RISING
WATER LEVELS ANTICIPATED ON CREEKS...SMALL STREAMS AND RIVERS.

A PERIOD OF WETTER CONDITIONS IS EXPECTED BY MID TO LATE WEEK. AT
THE ONSET OF PRECIPITATION ON TUESDAY AFTERNOON...SNOW LEVELS
BETWEEN 7500 AND 8500 FEET INDICATE THAT RAIN MAY FALL ON TOP OF
MOUNTAIN SNOWPACK AND INCREASE THE RATE OF SNOWMELT. WITH COOLER AIR
MOVING IN WEDNESDAY...PRECIPITATION WILL CHANGE TO ALL SNOW AND
REMAIN SNOW THROUGH THE END OF THE WEEK.

THE SITUATION WILL CONTINUE TO BE MONITORED BY THE NATIONAL WEATHER
SERVICE. RESIDENTS ALONG RIVERS...STREAMS...AND CREEKS SHOULD
PREPARE FOR RISING WATER LEVELS...AND BE PREPARED TO TAKE ACTION IF
WATERWAYS EXCEED BANKFULL.

$$

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