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Hazardous Weather Outlook


HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
743 PM MDT SAT APR 19 2014

WYZ103>106-115>117-202045-
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
LARAMIE VALLEY-SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
743 PM MDT SAT APR 19 2014

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

.DAY ONE...TONIGHT

A FEW ISOLATED THUNDERSTORMS ARE POSSIBLE IN THE SOUTHERN SECTIONS
OF PLATTE...GOSHEN AND NORTHERN LARAMIE COUNTY THROUGH SUNSET. THESE
THUNDERSTORMS ARE NOT EXPECTED TO BECOME SEVERE...BUT COULD PRODUCE
WIND GUSTS TO 45 MPH.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

AN AREA OF LOW PRESSURE WILL MOVE OVER WYOMING WEDNESDAY. THIS
SYSTEM COULD PRODUCE WEST TO SOUTHWEST WINDS GUSTING TO 50 MPH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

&&

THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND
CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT...
HTTP://WEATHER.GOV/CHEYENNE

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
427 PM MDT SAT APR 19 2014

UTZ001>016-019>021-517-518-WYZ021-202230-
CACHE VALLEY/UTAH PORTION-NORTHERN WASATCH FRONT-
SALT LAKE AND TOOELE VALLEYS-SOUTHERN WASATCH FRONT-
GREAT SALT LAKE DESERT AND MOUNTAINS-WASATCH MOUNTAIN VALLEYS-
WASATCH MOUNTAINS I-80 NORTH-WASATCH MOUNTAINS SOUTH OF I-80-
WESTERN UINTA MOUNTAINS-WASATCH PLATEAU/BOOK CLIFFS-
WESTERN UINTA BASIN-CASTLE COUNTRY-SAN RAFAEL SWELL-
SANPETE/SEVIER VALLEYS-WEST CENTRAL UTAH-SOUTHWEST UTAH-
UTAHS DIXIE AND ZION NATIONAL PARK-SOUTH CENTRAL UTAH-
GLEN CANYON RECREATION AREA/LAKE POWELL-CENTRAL MOUNTAINS-
SOUTHERN MOUNTAINS-SOUTHWEST WYOMING-
427 PM MDT SAT APR 19 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO THIRDS OF
UTAH AND SOUTHWEST WYOMING.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED OVER
UTAH/S CENTRAL AND SOUTHERN MOUNTAINS THROUGH SATURDAY EVENING.
ISOLATED SHOWERS AND THUNDERSTORMS CAN BE EXPECTED ACROSS VALLEY
LOCATIONS...WITH THE EXCEPTION OF THE FAR NORTHWEST PORTION OF
UTAH.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED
ACROSS SOUTHERN AND EASTERN UTAH SUNDAY.

SOUTHERLY WINDS ARE EXPECTED TO INCREASE TUESDAY AHEAD OF A
VIGOROUS STORM SYSTEM. THESE WINDS COULD BECOME QUITE STRONG AND
GUSTY TUESDAY AFTERNOON AND EVENING...PARTICULARLY OVER SOUTHERN
UTAH. THE WINDS WILL ALSO RESULT IN VERY WARM TEMPERATURES ACROSS
THE ENTIRE AREA. A SHARP COLD FRONT IS FORECAST TO CROSS THE
REGION TUESDAY NIGHT BRINGING IN MUCH COLDER AIR AND THE THREAT OF
SHOWERS...PRIMARILY OVER NORTHERN AND CENTRAL UTAH. ACCUMULATING
SNOWFALL IS EXPECTED ACROSS THE NORTHERN MOUNTAINS AND
BENCHES...WITH SNOW POSSIBLE TO THE VALLEY FLOORS WELL. STRONG
WINDS WILL CONTINUE...BECOMING GUSTY OUT OF THE NORTHWEST BEHIND
THE BOUNDARY.

THERE IS A POTENTIAL OF A HARD FREEZE AT THE END OF THE WORK
WEEK.

.SPOTTER INFORMATION STATEMENT...

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

$$

FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY/ (ALL LOWER CASE)

FOR INFORMATION ON POTENTIAL ROAD TRAVEL IMPACTS VISIT...
HTTP://WWW.UDOTTRAFFIC.UTAH.GOV/ROADWEATHERFORECAST.ASPX

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
320 PM MDT SAT APR 19 2014

MTZ028>042-056>058-063>068-WYZ098-099-202130-
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-
320 PM MDT SAT APR 19 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

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER THIS AFTERNOON
AND TONIGHT IS LOW.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

ABOVE NORMAL TEMPERATURES CAN BE EXPECTED THROUGH TUESDAY. THIS
WILL LEAD TO INCREASED MOUNTAIN SNOW MELT AND RISING WATER LEVELS
ON SOME RIVERS AND STREAMS. A PACIFIC STORM SYSTEM WILL BRING A
GOOD CHANCE OF SHOWERS AND MOUNTAIN SNOWFALL TUESDAY NIGHT THROUGH
THURSDAY. PLEASE MONITOR THE FORECAST FOR YOUR AREA...AND BE AWARE
OF INCREASED WATER LEVELS OVER THE COMING DAYS.

.SPOTTER INFORMATION STATEMENT...

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

$$

JKL

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
1059 AM MDT SAT APR 19 2014

COZ030>051-201700-
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-
1059 AM MDT SAT APR 19 2014

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL DEVELOP THIS
AFTERNOON...MOST NUMEROUS IN AND NEAR THE FRONT RANGE
MOUNTAINS...FOOTHILLS...AND PALMER DIVIDE. FARTHER EAST OVER THE
NORTHEAST PLAINS...THE AIRMASS IS MORE STABLE WITH ONLY ISOLATED
SHOWERS AND STORMS POSSIBLE LATE THIS AFTERNOON AND EVENING.

EMBEDDED THUNDERSTORMS FORMING LATE THIS AFTERNOON MAY PRODUCE
BRIEF HEAVY RAIN OVER THE SOUTHERN FOOTHILLS AND PALMER
DIVIDE...BUT MOST TOTAL RAINFALL AMOUNTS WILL BE UNDER A HALF
INCH. OVER THE HIGHER MOUNTAINS ABOVE 10 THOUSAND FEET...LOOK FOR
SNOW SHOWERS...SOME OF WHICH WILL BE HEAVY. ACCUMULATIONS OF 1 TO
4 INCHES WILL BE POSSIBLE THROUGH THE EVENING FROM THE MOSQUITO
RANGE TOWARD THE EISENHOWER TUNNEL AND MOUNT EVANS AREA.

A WEAK UPPER LEVEL TROUGH AND COLD FRONTAL PASSAGE EARLIER THIS
MORNING WILL BRING THE UNSETTLED WEATHER. SHOWERS ARE EXPECTED TO
DECREASE IN COVERAGE LATER THIS EVENING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THERE WILL BE A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS ON
SUNDAY...MORE NUMEROUS OVER THE MOUNTAINS AND PALMER DIVIDE REGION.
MONDAY WILL BE DRIER AND A BIT COOLER MONDAY EXCEPT FOR A SLIGHT
CHANCE OF SHOWERS IN THE MOUNTAINS.

FOR THE REST OF NEXT WEEK...MAINLY DRY CONDITIONS SHOULD PREVAIL
EXCEPT FOR A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS OVER THE
MOUNTAINS AND OVER FAR EASTERN COLORADO. TEMPERATURES WILL BE ABOVE
SEASONAL NORMALS FOR MUCH OF THE WEEK WITH GUSTY WINDS AT TIMES
FROM TUESDAY THROUGH THURSDAY. LOW AFTERNOON HUMIDITIES...
ESPECIALLY ON WEDNESDAY...WILL COMBINE WITH THE WINDS...LEADING
TO ELEVATED FIRE DANGER CONDITIONS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.

$$

BARJENBRUCH/ET

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
632 AM MDT SAT APR 19 2014

COZ001>014-017>023-UTZ022>025-027>029-201245-
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-FLATTOPS-
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-
632 AM MDT SAT APR 19 2014

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS...MORE NUMEROUS IN THE HIGH COUNTRY...WILL OCCUR
TODAY. A FEW THUNDERSTORMS CAN BE EXPECTED ACROSS THE REGION TODAY
AND EARLY EVENING. SNOW WILL BE LIMITED TO ABOVE 9000 FEET WITH
ANY SNOW ACCUMULATIONS LIMITED TO THE MOUNTAIN PASSES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS WILL CONTINUE
ON SUNDAY.

TUESDAY...STRONG GUSTY WINDS WILL FORM WITH AREAS OF BLOWING
DUST. SOME LOWER ELEVATED MOUNTAIN AREAS MAY BE APPROACHING
CRITICAL FIRE WEATHER CONDITIONS FROM LOW HUMIDITY AND WINDS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
500 AM MDT SAT APR 19 2014

WYZ001>020-022>030-201100-
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 SAT APR 19 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

ISOLATED THUNDERSTORMS POSSIBLE MAINLY NEAR AND SOUTH OF INTERSTATE
80.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SUNDAY...ISOLATED THUNDERSTORMS POSSIBLE SOUTH OF A MARBLETON TO
KAYCEE LINE.

MONDAY NIGHT AND TUESDAY...INCREASING RAIN SHOWERS AND THUNDERSTORMS
IN THE WEST.  VERY WARM AND WINDY CONDITIONS ACROSS THE CENTRAL AND
SOUTH WITH INCREASING CHANCES OF 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.

WEDNESDAY AND WEDNESDAY NIGHT...SIGNIFICANT SNOW ACCUMULATIONS
POSSIBLE IN THE NORTHERN AND WESTERN MOUNTAINS.  LOCALLY HEAVY SNOW
SHOWERS ARE POSSIBLE IN THE CENTRAL BASINS WEDNESDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

$$

TEAM RIVERTON


Hydrologic Outlook


HYDROLOGIC OUTLOOK
MTZ008>015-044>055-211800-

HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE GREAT FALLS MT
815 AM MDT FRI APR 18 2014

...WARMER TEMPERATURES THIS WEEKEND AND EARLY NEXT WEEK TO BE
FOLLOWED BY THE POTENTIAL FOR WIDESPREAD PRECIPITATION AND RAIN ON
SNOWPACK BY THE MIDDLE OF NEXT WEEK...

WARMER TEMPERATURES ARE EXPECTED THIS WEEKEND INTO EARLY NEXT WEEK
BEFORE A PERIOD OF COOLER AND WETTER CONDITIONS BY THE MIDDLE TO
LATER PART OF NEXT 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 THE MIDDLE TO LATER
HALF OF NEXT WEEK. AT THE ONSET OF PRECIPITATION ON TUESDAY...SNOW
LEVELS BETWEEN 7000 AND 9000 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.

$$


Short Term Forecast


SHORT TERM FORECAST
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
138 AM MDT SUN APR 20 2014

COZ033-034-200945-
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-
INCLUDING...CAMERON PASS...LARAMIE AND MEDICINE BOW MOUNTAINS...
RABBIT EARS RANGE...ROCKY MOUNTAIN NATIONAL PARK...
WILLOW CREEK PASS...BERTHOUD PASS...BRECKENRIDGE...
EAST SLOPES MOSQUITO RANGE...EAST SLOPES SOUTHERN GORE RANGE...
EISENHOWER TUNNEL...INDIAN PEAKS...KENOSHA MOUNTAINS...
MOUNT EVANS...WILLIAMS FORK MOUNTAINS...WINTER PARK
138 AM MDT SUN APR 20 2014

.NOW...
A FEW LIGHT SNOW SHOWERS WILL LINGER OVER HIGHER ELEVATIONS ALONG
THE CONTINENTAL DIVIDE THROUGH AT LEAST 4 AM. HOWEVER NO
ADDITIONAL SNOW ACCUMULATION IS ANTICIPATED.

$$
BAKER

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
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