Red Flag Warning 10, NWS Riverton, WY

818 
WWUS85 KRIW 140856
RFWRIW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
256 AM MDT TUE APR 14 2015

...RED FLAG WARNING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY
TODAY...

.A RED FLAG WARNING IS IN EFFECT FOR THIS AFTERNOON AND EVENING.
STRONG WINDS WILL COMBINE WITH LOW RELATIVE HUMIDITY AND
CRITICALLY DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR RAPID
FIRE GROWTH. THESE CONDITIONS WILL BE PRODUCED BY STRONG SOUTH TO
SOUTHWEST WINDS AHEAD OF A PACIFIC COLD FRONT.

WYZ275-282-142200-
/O.CON.KRIW.FW.W.0010.150414T1900Z-150415T0200Z/
NORTH BIG HORN BASIN/WORLAND BLM-SOUTH BIG HORN BASIN/WORLAND BLM-
256 AM MDT TUE APR 14 2015

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONES 275 AND 282...

* AFFECTED AREA...FIRE WEATHER ZONES 275 AND 282.

* WINDS...SOUTHWEST 20 TO 30 MPH WITH GUSTS UP TO 50 MPH.

* RELATIVE HUMIDITY...AS LOW AS 12 PERCENT.

* IMPACTS...FIRES MAY QUICKLY GROW OUT OF CONTROL WITH RAPID RATES
  OF SPREAD THROUGH DRY GRASS AND SAGE BRUSH. AGRICULTURAL BURNING
  IS NOT RECOMMENDED THIS AFTERNOON INTO THE EVENING HOURS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

WYZ281-142200-
/O.CON.KRIW.FW.W.0010.150414T1900Z-150415T0200Z/
JOHNSON COUNTY/CASPER BLM-
256 AM MDT TUE APR 14 2015

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONE 281...

* AFFECTED AREA...FIRE WEATHER ZONE 281.

* WINDS...SOUTHWEST 20 TO 30 MPH WITH GUSTS UP TO 45 MPH.

* RELATIVE HUMIDITY...AS LOW AS 10 PERCENT.

* IMPACTS...FIRES MAY QUICKLY GROW OUT OF CONTROL WITH RAPID 
  RATES OF SPREAD THROUGH DRY GRASS AND SAGE BRUSH. AGRICULTURAL 
  BURNING IS NOT RECOMMENDED TUESDAY AFTERNOON INTO THE EVENING 
  HOURS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

WYZ283-142200-
/O.CON.KRIW.FW.W.0010.150414T1900Z-150415T0200Z/
UPPER WIND RIVER BASIN/WIND RIVER BASIN-
256 AM MDT TUE APR 14 2015

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONE 283...

* AFFECTED AREA...FIRE WEATHER ZONE 283.

* WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS UP TO 60 MPH.

* RELATIVE HUMIDITY...AS LOW AS 12 PERCENT.

* IMPACTS...FIRES MAY QUICKLY GROW OUT OF CONTROL WITH RAPID 
  RATES OF SPREAD THROUGH DRY GRASS AND SAGE BRUSH. AGRICULTURAL 
  BURNING IS NOT RECOMMENDED TUESDAY AFTERNOON INTO THE EVENING 
  HOURS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

WYZ280-142200-
/O.CON.KRIW.FW.W.0010.150414T1900Z-150415T0200Z/
NATRONA COUNTY/CASPER BLM-
256 AM MDT TUE APR 14 2015

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONE 280...

* AFFECTED AREA...FIRE WEATHER ZONE 280.

* WINDS...SOUTHWEST 30 TO 35 MPH WITH GUSTS UP TO 55 MPH.

* RELATIVE HUMIDITY...AS LOW AS 11 PERCENT.

* IMPACTS...FIRES MAY QUICKLY GROW OUT OF CONTROL WITH RAPID 
  RATES OF SPREAD THROUGH DRY GRASS AND SAGE BRUSH. AGRICULTURAL 
  BURNING IS NOT RECOMMENDED TUESDAY AFTERNOON INTO THE EVENING 
  HOURS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

HTTP://WEATHER.GOV/RIVERTON

058 
WWUS85 KRIW 141559
RFWRIW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
959 AM MDT TUE APR 14 2015

...RED FLAG WARNING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY
TODAY...

.A RED FLAG WARNING IS IN EFFECT UNTIL 10 PM MDT. STRONG WINDS
WILL COMBINE WITH LOW RELATIVE HUMIDITY AND CRITICALLY DRY FUELS
TO PRODUCE CONDITIONS FAVORABLE FOR RAPID FIRE GROWTH. THESE
CONDITIONS WILL BE PRODUCED BY STRONG SOUTH TO SOUTHWEST WINDS
AHEAD OF A PACIFIC COLD FRONT.

WYZ275-282-150400-
/O.EXT.KRIW.FW.W.0010.150414T1800Z-150415T0400Z/
NORTH BIG HORN BASIN/WORLAND BLM-SOUTH BIG HORN BASIN/WORLAND BLM-
959 AM MDT TUE APR 14 2015

...RED FLAG WARNING NOW IN EFFECT UNTIL 10 PM MDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 275 AND
282...

* AFFECTED AREA...FIRE WEATHER ZONES 275 AND 282.

* WINDS...SOUTHWEST 20 TO 30 MPH WITH GUSTS UP TO 50 MPH.

* RELATIVE HUMIDITY...AS LOW AS 11 PERCENT.

* IMPACTS...FIRES MAY QUICKLY GROW OUT OF CONTROL WITH RAPID RATES
  OF SPREAD THROUGH DRY GRASS AND SAGE BRUSH. AGRICULTURAL BURNING
  IS NOT RECOMMENDED INTO THE EVENING HOURS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

WYZ281-150400-
/O.EXT.KRIW.FW.W.0010.150414T1800Z-150415T0400Z/
JOHNSON COUNTY/CASPER BLM-
959 AM MDT TUE APR 14 2015

...RED FLAG WARNING NOW IN EFFECT UNTIL 10 PM MDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 281...

* AFFECTED AREA...FIRE WEATHER ZONE 281.

* WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS UP TO 50 MPH.

* RELATIVE HUMIDITY...AS LOW AS 9 PERCENT.

* IMPACTS...FIRES MAY QUICKLY GROW OUT OF CONTROL WITH RAPID RATES
  OF SPREAD THROUGH DRY GRASS AND SAGE BRUSH. AGRICULTURAL BURNING
  IS NOT RECOMMENDED INTO THE EVENING HOURS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

WYZ283-150400-
/O.EXT.KRIW.FW.W.0010.150414T1800Z-150415T0400Z/
UPPER WIND RIVER BASIN/WIND RIVER BASIN-
959 AM MDT TUE APR 14 2015

...RED FLAG WARNING NOW IN EFFECT UNTIL 10 PM MDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 283...

* AFFECTED AREA...FIRE WEATHER ZONE 283.

* WINDS...SOUTHWEST 30 TO 40 MPH WITH GUSTS UP TO 55 MPH.

* RELATIVE HUMIDITY...AS LOW AS 11 PERCENT.

* IMPACTS...FIRES MAY QUICKLY GROW OUT OF CONTROL WITH RAPID RATES
  OF SPREAD THROUGH DRY GRASS AND SAGE BRUSH. AGRICULTURAL BURNING
  IS NOT RECOMMENDED INTO THE EVENING HOURS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

WYZ280-150400-
/O.EXT.KRIW.FW.W.0010.150414T1600Z-150415T0400Z/
NATRONA COUNTY/CASPER BLM-
959 AM MDT TUE APR 14 2015

...RED FLAG WARNING NOW IN EFFECT UNTIL 10 PM MDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 280...

* AFFECTED AREA...FIRE WEATHER ZONE 280.

* WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS UP TO 55 MPH.

* RELATIVE HUMIDITY...AS LOW AS 10 PERCENT.

* IMPACTS...FIRES MAY QUICKLY GROW OUT OF CONTROL WITH RAPID RATES
  OF SPREAD THROUGH DRY GRASS AND SAGE BRUSH. AGRICULTURAL BURNING
  IS NOT RECOMMENDED INTO THE EVENING HOURS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

HTTP://WEATHER.GOV/RIVERTON

519 
WWUS85 KRIW 142041
RFWRIW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
241 PM MDT TUE APR 14 2015

...RED FLAG WARNING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY
TODAY...

.A RED FLAG WARNING IS IN EFFECT UNTIL 10 PM MDT. STRONG WINDS
WILL COMBINE WITH LOW RELATIVE HUMIDITY AND CRITICALLY DRY FUELS
TO PRODUCE CONDITIONS FAVORABLE FOR RAPID FIRE GROWTH. THESE
CONDITIONS WILL BE PRODUCED BY STRONG SOUTH TO SOUTHWEST WINDS
AHEAD OF A PACIFIC COLD FRONT.

WYZ275-282-150400-
/O.CON.KRIW.FW.W.0010.000000T0000Z-150415T0400Z/
NORTH BIG HORN BASIN/WORLAND BLM-SOUTH BIG HORN BASIN/WORLAND BLM-
241 PM MDT TUE APR 14 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS
EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES
275 AND 282...

* AFFECTED AREA...FIRE WEATHER ZONES 275 AND 282.

* WINDS...SOUTHWEST 20 TO 30 MPH WITH GUSTS UP TO 50 MPH.

* RELATIVE HUMIDITY...AS LOW AS 11 PERCENT.

* IMPACTS...FIRES MAY QUICKLY GROW OUT OF CONTROL WITH RAPID 
  RATES OF SPREAD THROUGH DRY GRASS AND SAGE BRUSH. AGRICULTURAL 
  BURNING IS NOT RECOMMENDED INTO THE EVENING HOURS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

WYZ281-150400-
/O.CON.KRIW.FW.W.0010.000000T0000Z-150415T0400Z/
JOHNSON COUNTY/CASPER BLM-
241 PM MDT TUE APR 14 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS
EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE
281...

* AFFECTED AREA...FIRE WEATHER ZONE 281.

* WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS UP TO 50 MPH.

* RELATIVE HUMIDITY...AS LOW AS 9 PERCENT.

* IMPACTS...FIRES MAY QUICKLY GROW OUT OF CONTROL WITH RAPID 
  RATES OF SPREAD THROUGH DRY GRASS AND SAGE BRUSH. AGRICULTURAL 
  BURNING IS NOT RECOMMENDED INTO THE EVENING HOURS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

WYZ283-150400-
/O.CON.KRIW.FW.W.0010.000000T0000Z-150415T0400Z/
UPPER WIND RIVER BASIN/WIND RIVER BASIN-
241 PM MDT TUE APR 14 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS
EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE
283...

* AFFECTED AREA...FIRE WEATHER ZONE 283.

* WINDS...SOUTHWEST 30 TO 40 MPH WITH GUSTS UP TO 55 MPH.

* RELATIVE HUMIDITY...AS LOW AS 11 PERCENT.

* IMPACTS...FIRES MAY QUICKLY GROW OUT OF CONTROL WITH RAPID 
  RATES OF SPREAD THROUGH DRY GRASS AND SAGE BRUSH. AGRICULTURAL 
  BURNING IS NOT RECOMMENDED INTO THE EVENING HOURS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

WYZ280-150400-
/O.CON.KRIW.FW.W.0010.000000T0000Z-150415T0400Z/
NATRONA COUNTY/CASPER BLM-
241 PM MDT TUE APR 14 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS
EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE
280...

* AFFECTED AREA...FIRE WEATHER ZONE 280.

* WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS UP TO 55 MPH.

* RELATIVE HUMIDITY...AS LOW AS 10 PERCENT.

* IMPACTS...FIRES MAY QUICKLY GROW OUT OF CONTROL WITH RAPID 
  RATES OF SPREAD THROUGH DRY GRASS AND SAGE BRUSH. AGRICULTURAL 
  BURNING IS NOT RECOMMENDED INTO THE EVENING HOURS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

HTTP://WEATHER.GOV/RIVERTON

587 
WWUS85 KRIW 150346
RFWRIW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
946 PM MDT TUE APR 14 2015

WYZ275-282-150500-
/O.EXP.KRIW.FW.W.0010.000000T0000Z-150415T0400Z/
NORTH BIG HORN BASIN/WORLAND BLM-SOUTH BIG HORN BASIN/WORLAND BLM-
946 PM MDT TUE APR 14 2015

...RED FLAG WARNING WILL EXPIRE AT 10 PM MDT THIS EVENING FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 275 AND
282...

RED FLAG CONDITIONS ARE ENDING ACROSS THE AREA. THEREFORE...THE
RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT 10 PM MDT.

$$

WYZ281-150500-
/O.EXP.KRIW.FW.W.0010.000000T0000Z-150415T0400Z/
JOHNSON COUNTY/CASPER BLM-
946 PM MDT TUE APR 14 2015

...RED FLAG WARNING WILL EXPIRE AT 10 PM MDT THIS EVENING FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 281...

RED FLAG CONDITIONS ARE ENDING ACROSS THE AREA. THEREFORE...THE
RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT 10 PM MDT.

$$

WYZ283-150500-
/O.EXP.KRIW.FW.W.0010.000000T0000Z-150415T0400Z/
UPPER WIND RIVER BASIN/WIND RIVER BASIN-
946 PM MDT TUE APR 14 2015

...RED FLAG WARNING WILL EXPIRE AT 10 PM MDT THIS EVENING FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 283...

RED FLAG CONDITIONS ARE ENDING ACROSS THE AREA. THEREFORE...THE
RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT 10 PM MDT.

$$

WYZ280-150500-
/O.EXP.KRIW.FW.W.0010.000000T0000Z-150415T0400Z/
NATRONA COUNTY/CASPER BLM-
946 PM MDT TUE APR 14 2015

...RED FLAG WARNING WILL EXPIRE AT 10 PM MDT THIS EVENING FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 280...

RED FLAG CONDITIONS ARE ENDING ACROSS THE AREA. THEREFORE...THE
RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT 10 PM MDT.

$$

HTTP://WEATHER.GOV/RIVERTON

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
238 PM MDT MON APR 13 2015

.SHORT TERM...TONIGHT THROUGH TUESDAY

A HIGH WIND WATCH IS IN EFFECT FOR TUESDAY AND TUESDAY EVENING
FOR SOUTHERN LINCOLN AND SWEETWATER COUNTIES.  ALSO FOR THE EAST
SLOPES OF THE WIND RIVER MOUNTAINS AND THE GREEN AND RATTLESNAKE
MOUNTAINS. SOUTH TO SOUTHWEST WINDS OF 40 MPH WITH GUSTS TO 60 MPH
ARE EXPECTED. THE MOUNTAINS MAY SEE 50 MPH WINDS WITH GUSTS TO 75 MPH.
TO THE NORTH AND EAST A FIRE WEATHER WATCH IS IN EFFECT ON TUESDAY
UNTIL 6 PM MDT...OVER FREMONT...NATRONA...JOHNSON COUNTIES AND
THE BIGHORN BASIN. SOUTH TO SOUTHWEST WINDS OF 20 TO 30 MPH WITH
GUSTS TO 50 MPH AND LOW RELATIVE HUMIDITY AROUND 10 PERCENT WILL
COMBINE WITH CRITICALLY DRY FUELS FOR CONDITIONS FAVORABLE FOR
HARD TO CONTROL FIRES WITH RAPID RATES OF SPREAD.

OVERNIGHT TONIGHT TEMPERATURES WILL WARM WITH MOSTLY CLEAR CONDITIONS.
A PACIFIC COLD FRONT WILL APPROACH THE WEST ON TUESDAY WITH INCREASING
CLOUD IN THE MORNING. SHOWERS WILL INCREASE ACROSS THE WEST AND
NORTH WITH ISOLATED THUNDERSTORMS WITH STRONG GUSTY WINDS AND SMALL
HAIL DEVELOPING IN THE AFTERNOON. TEMPERATURES WILL BE VERY WARM
AHEAD OF THE COLD FRONT.

.LONG TERM...TUESDAY NIGHT THROUGH MONDAY

AS WE ENTER THE LONG TERM. WE WILL TAKE A DROP. A DROP LIKE ON THE
SCARIEST ROLLER COASTER AT CEDAR POINT...OR WHAT WE CALL IN WYOMING
APRIL. A STRONG COLD FRONT AMPLE MOISTURE WILL MOVE WEST TO EAST
ACROSS THE STATE ON TUESDAY NIGHT AND USHER IN MUCH COOLER AIR. 700
MILLIBAR TEMPERATURES WILL FALL AS MUCH AS 17 DEGREES CELSIUS...OR
30 DEGREES FOR THOSE OF YOU WHO ARE MORE IMPERIALLY ORIENTED. IN
OTHER WORDS IT WILL BE COMPLETELY DIFFERENT WHEN YOU WAKE UP
WEDNESDAY MORNING THEN WHEN YOU GO TO BED TUESDAY NIGHT...AT LEAST
FOR MOST AREAS. THERE IS ENOUGH ENERGY FOR A FEW THUNDERSTORMS ON
TUESDAY EVENING AHEAD OF THE FRONT. AFTER THAT...PRECIPITATION
CHANGES OVER TO SNOW AS TEMPERATURES CRASH LATE AT NIGHT AND EARLY
WEDNESDAY MORNING. THE STEADIEST AND HEAVIEST SNOW FOR MOST AREAS
STILL LOOKS TO BE WEDNESDAY MORNING INTO EARLY AFTERNOON WHEN THERE
WILL BE SOME INTERACTION WITH THE RIGHT REAR QUAD OF A PASSING JET
STREAK TO PROVIDE SOME EXTRA DYNAMICS. AFTER THAT...IT TURNS INTO
MORE OF A NORTHEASTERLY UPSLOPE EVENT AS 700 MILLIBAR FLOW TURNS
THAT WAY AS LEE CYCLOGENESIS OCCURS OVER COLORADO. THIS LOOKS TO
CONTINUE INTO WEDNESDAY AFTERNOON AND EVEN WEDNESDAY NIGHT. IN
ADDITION...STRONG COLD ADVECTION WILL LEAD TO GUSTY WINDS MUCH OF
WEDNESDAY...ESPECIALLY IN THE FAVORED AREAS LIKE THE NORTHERN BIG
HORN BASIN...SOUTH OF THE OWL CREEK RANGE AND ACROSS JOHNSON COUNTY.
THIS WILL LIKELY LEAD TO BLOWING AND DRIFTING SNOW AND DIFFICULT
TRAVEL CONDITIONS. AS FOR AMOUNTS...CONTINUITY LOOKED REASONABLE SO
WE ONLY MADE MINOR TWEAKS. AT THIS POINT...IT LOOKS LIKE MORE
ADVISORY...ESPECIALLY DURING THE DAY SINCE THE RECENT WARM
WEATHER...WARM GROUND TEMPERATURES AND HIGH SUN ANGLE WOULD LIKELY
MELT A LOT OF SNOW THAT FALLS ON PAVED SURFACES UNLESS IT IS VERY
HEAVY.

AN ADDITIONAL CONCERN FOR WEDNESDAY NIGHT IS THE MODELS ARE SHOWING
DEVELOPMENT OF A HEAVIER BAND OF SNOW SOMEWHERE IN CENTRAL OR
EASTERN WYOMING AS THE LOW DEEPENS IN THE LEE OF THE ROCKIES. THE
MODELS ARE ALL OVER THE PLACE WITH THE PLACEMENT THOUGH. FOR
NOW...WE BUMPED SNOW AMOUNTS IN THE EAST A BIT BUT WILL NOT GO
HIGHER UNTIL MODELS COME INTO MORE CONSENSUS SINCE THIS MESOSCALE
BANDING IS HARD TO PINPOINT.

SNOW SHOULD END FROM NORTHWEST TO SOUTHEAST FROM WEDNESDAY NIGHT
INTO THURSDAY MORNING...BUT THE HEAVY SNOW SHOULD BE OVER BY
THURSDAY MORNING. RIDGING SHOULD THEN BUILD OVER THE AREA FROM
THURSDAY AFTERNOON THROUGH FRIDAY WITH FRIDAY LOOKING LIKE A FAIRLY
NICE DAY. THE NEXT SYSTEM THEN LOOKS TO MOVE IN FOR THE WEEKEND. AS
EXPECTED...MODELS DIVERGE ON THE DETAILS AND TIMING OF THE SYSTEM.
AT THIS POINT...MOST AREAS SHOULD BE DRY MOST OF THE TIME FOR
SATURDAY...ESPECIALLY ACROSS THE SOUTHERN TWO THIRDS OF THE AREA
WITH SUNDAY COOLER AND MORE UNSETTLED.WITH MOST OF THE ATTENTION ON
THE WEDNESDAY SYSTEM AND A LACK OF MODEL CONSISTENCY...WE LET
CONTINUITY RIDE UNTIL WE GET CLOSER TO THE WEEKEND TO SEE IF DETAILS
BECOME CLEARER.

&&

.AVIATION.../00Z ISSUANCE/

VFR CONDITIONS WILL PREVAIL THROUGH 00Z WEDNESDAY. S-SW SFC WINDS
AROUND 15KTS WILL PREVAIL THIS EVENING WITH SOUTH SOUTHWEST SFC WINDS
INCREASING TO 25 TO 35 WITH GUSTS OF 50 TO 60 KTS BY NOON TUESDAY
OVER AND NEAR THE EAST SLOPES OF THE MOUNTAINS AND THROUGH THE
WIND CORRIDOR FROM ROCK SPRINGS TO CASPER.  AREAS OF LOW LEVEL WIND
SHEAR CAN BE EXPECTED...ESPECAILLY IN THE FOOTHILLS OF THE MOUNTAINS.

&&

.FIRE WEATHER...

  ...FIRE WEATHER WATCH FOR STRONG WINDS AND LOW RELATIVE HUMIDITY
TUESDAY...

A FIRE WEATHER WATCH IS IN EFFECT FOR TUESDAY AFTERNOON AND
EVENING. STRONG WINDS WILL COMBINE WITH LOW RELATIVE HUMIDITY AND
CRITICALLY DRY FUELS TO PRODUCE CONDITIONS FAVORABLE FOR RAPID
FIRE GROWTH. THESE CONDITIONS WILL BE PRODUCED BY STRONG SOUTH TO
SOUTHWEST WINDS AHEAD OF A PACIFIC COLD FRONT.  TONIGHT WILL BE MOSTLY
CLEAR AND BREEZY WITH GENRALLY POOR RELATIVE HUMIDITY.  CLOUDS
WILL INCREASE IN THE WEST WITH SOME MOUNTAIN SHOWERS WITH ISOLATED
THUNDERSTORMS IN THE MOUNTAINS.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...
HIGH WIND WATCH FROM TUESDAY MORNING THROUGH TUESDAY AFTERNOON
WYZ015-019-027>030.

FIRE WEATHER WATCH FROM TUESDAY AFTERNOON THROUGH TUESDAY
EVENING WYZ275-276-280>283.

&&

SHORT TERM...C.BAKER
LONG TERM...HATTINGS
AVIATION...C.BAKER
FIRE WEATHER...C.BAKER

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
500 AM MDT MON APR 13 2015

WYZ001>020-022>030-141200-
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 MON APR 13 2015

...FIRE WEATHER WATCH IN EFFECT FOR THE LOWER ELEVATIONS EAST OF THE
DIVIDE TUESDAY AFTERNOON AND EARLY EVENING...

...HIGH WIND WATCH FOR SOUTHERN WYOMING TUESDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

TODAY...ELEVATED FIRE WEATHER CONDITIONS ALL LOWER ELEVATIONS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

TUESDAY...WIDESPREAD EXTREME FIRE WEATHER CONDITIONS POSSIBLE IN
THE LOWER ELEVATIONS EAST OF THE DIVIDE.

TUESDAY NIGHT THROUGH WEDNESDAY EVENING...A POWERFUL SPRING STORM
SYSTEM WILL BRING A RETURN TO MUCH COLDER...AND LIKELY WINTRY
CONDITIONS ACROSS MUCH OF THE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

TEAM RIVERTON