High Wind Warning 10, NWS Riverton, WY

000 
WWUS75 KRIW 040600
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1200 AM MDT SUN NOV 4 2007

...STRONG WINDS ARE EXPECTED ACROSS THE CODY FOOTHILLS AND THE
ABSAROKA MOUNTAINS LATE TONIGHT AND SUNDAY MORNING...

.AN INCREASING ATMOSPHERIC PRESSURE GRADIENT WILL RESULT IN
INCREASING STRONG WEST WINDS ACROSS THE CODY FOOTHILLS AND THE
ADJACENT ABSAROKA MOUNTAINS FROM JUST AFTER MIDNIGHT TONIGHT
THROUGH 11AM SUNDAY MORNING.

WYZ002-041400-
/O.CON.KRIW.HW.W.0010.000000T0000Z-071104T1800Z/
ABSAROKA MOUNTAINS-
1200 AM MDT SUN NOV 4 2007

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY. 

STRONG WEST WINDS ARE BEGINNING TO INCREASE TONIGHT OVER THE
ABSAROKA MOUNTAINS. WEST WINDS ARE NOW GUSTING TO 47 MPH AT THE
RATTLESNAKE REMOTE WEATHER STATION WEST OF CODY AND TO 44 MPH
ALONG CHIEF JOSEPH HIGHWAY. WEST WINDS ARE EXPECTED TO INCREASE TO AROUND
50 MPH WITH GUSTS OF 75 MPH AFTER MIDNIGHT OVER EXPOSED AREAS
SUCH AS RIDGETOPS AND PASSES. HIGHWAY 296 OVER CHIEF JOSEPH PASS
WILL EXPERIENCE THESE STRONG WINDS AS WELL AS HIGHWAY 20 WEST OF
CODY. THE WINDS WILL BEGIN TO TAPER BY LATE SUNDAY MORNING.

THESE WINDS WILL MAKE FOR DANGEROUS DRIVING CONDITIONS. 

A HIGH WIND WARNING IS ISSUED FOR THE MOUNTAINS WHEN SUSTAINED
WINDS OF 50 MPH OR GUSTS OF 75 MPH OR GREATER ARE EXPECTED.

$$

WYZ003-041400-
/O.CON.KRIW.HW.W.0010.000000T0000Z-071104T1800Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
1200 AM MDT SUN NOV 4 2007

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY. 

STRONG WINDS WILL INCREASE TONIGHT ALONG THE CODY FOOTHILLS. WEST
WINDS OF AROUND 40 MPH WITH GUSTS OF 60 MPH ARE EXPECTED TO
DEVELOP AFTER MIDNIGHT. THOSE IN THE SOUTH AND NORTH FORK
CANYONS... THE CLARK AREA...AND TRAVELERS ALONG HIGHWAY 120 NORTH
OF CODY WILL EXPERIENCE THESE STRONG WINDS. WINDS SPEEDS AROUND
CODY AND MEETEETSE WILL NOT BE AS STRONG BUT WILL STILL BE AROUND
30 MPH WITH GUSTS TO 50 MPH. THE WINDS WILL BEGIN TO TAPER BY
LATE SUNDAY MORNING.

THESE WINDS WILL MAKE FOR DANGEROUS DRIVING CONDITIONS. THOSE
TRAVELING ALONG HIGHWAY 120 NORTH OF CODY CAN EXPECT DANGEROUS
CROSS WINDS. SECURE OR BRING INDOORS ANY LOOSE ITEMS.

A HIGH WIND WARNING IS ISSUED FOR BASIN LOCATIONS WHEN SUSTAINED
WINDS OF 40 MPH OR GUSTS OF 60 MPH OR GREATER ARE EXPECTED.

$$

LIPSON

000 
WWUS75 KRIW 041056
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
356 AM MST SUN NOV 4 2007

...STRONG WINDS ARE EXPECTED ACROSS THE CODY FOOTHILLS AND THE
ABSAROKA MOUNTAINS THIS MORNING...

.AN INCREASING ATMOSPHERIC PRESSURE GRADIENT WILL RESULT IN
STRONG WEST WINDS ACROSS THE CODY FOOTHILLS AND THE ADJACENT
ABSAROKA MOUNTAINS THROUGH 11AM TODAY.

WYZ002-041800-
/O.CON.KRIW.HW.W.0010.000000T0000Z-071104T1800Z/
ABSAROKA MOUNTAINS-
356 AM MST SUN NOV 4 2007

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

STRONG WEST WINDS ARE BEGINNING TO INCREASE EARLY THIS MORNING OVER
THE ABSAROKA MOUNTAINS. WEST WINDS ARE NOW GUSTING BETWEEN 50 AND
60 MPH ALONG CHIEF JOSEPH HIGHWAY. WEST WINDS ARE EXPECTED TO
INCREASE TO AROUND 50 MPH WITH GUSTS OF 75 MPH THIS MORNING OVER
EXPOSED AREAS SUCH AS RIDGE TOPS AND PASSES. HIGHWAY 296 OVER
CHIEF JOSEPH PASS WILL EXPERIENCE THESE STRONG WINDS AS WELL AS
HIGHWAY 20 WEST OF CODY. THE WINDS WILL BEGIN TO TAPER BY LATE
MORNING.

THESE WINDS WILL MAKE FOR DANGEROUS DRIVING CONDITIONS.

A HIGH WIND WARNING IS ISSUED FOR THE MOUNTAINS WHEN SUSTAINED
WINDS OF 50 MPH OR GUSTS OF 75 MPH OR GREATER ARE EXPECTED.

$$

WYZ003-041800-
/O.CON.KRIW.HW.W.0010.000000T0000Z-071104T1800Z/
CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
356 AM MST SUN NOV 4 2007

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING. 

STRONG WINDS WILL CONTINUE TO INCREASE EARLY THIS MORNING ALONG
THE CODY FOOTHILLS. WEST WINDS OF AROUND 40 MPH WITH GUSTS OF 60
MPH ARE EXPECTED TO DEVELOP. THOSE IN THE SOUTH AND NORTH FORK
CANYONS...THE CLARK AREA...AND TRAVELERS ALONG HIGHWAY 120 NORTH
OF CODY WILL EXPERIENCE THESE STRONG WINDS. WINDS SPEEDS AROUND
CODY AND MEETEETSE WILL NOT BE AS STRONG BUT WILL STILL BE AROUND
30 MPH WITH GUSTS TO 50 MPH. THE WINDS WILL BEGIN TO TAPER BY LATE
MORNING.

THESE WINDS WILL MAKE FOR DANGEROUS DRIVING CONDITIONS. THOSE
TRAVELING ALONG HIGHWAY 120 NORTH OF CODY CAN EXPECT DANGEROUS
CROSS WINDS. SECURE OR BRING INDOORS ANY LOOSE ITEMS.

A HIGH WIND WARNING IS ISSUED FOR BASIN LOCATIONS WHEN SUSTAINED
WINDS OF 40 MPH OR GUSTS OF 60 MPH OR GREATER ARE EXPECTED.

$$

TEAM RIVERTON

000 
WWUS75 KRIW 041520
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
820 AM MST SUN NOV 4 2007

WYZ002-003-041630-
/O.CAN.KRIW.HW.W.0010.000000T0000Z-071104T1800Z/
ABSAROKA MOUNTAINS-CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
820 AM MST SUN NOV 4 2007

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELED THE HIGH
WIND WARNING. 

HIGH WINDS ARE NO LONGER EXPECTED IN THE ABSAROKAS AND ALONG
THE CODY FOOTHILLS THIS MORNING. HOWEVER...IT WILL REMAIN WINDY IN THE
MOUNTAINS...AND THE WINDS WILL INTERMITTENTLY MOVE INTO THE LOWER
ELEVATIONS. WINDS SPEEDS OF 30 TO 40 MPH WITH GUSTS TO 65 MPH ARE
STILL LIKELY ON RIDGETOPS AND PASSES...WITH LOWER ELEVATIONS
ADJACENT TO THE MOUNTAINS OCCASIONALLY REACHING 20 TO 30 MPH WITH
GUSTS TO 45 MPH.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
214 PM MDT SAT NOV 3 2007

.SHORT TERM...TONIGHT THROUGH TUESDAY
INITIAL CLIPPER SHORTWAVE QUICKLY DIGGING INTO THE UPPER PLAINS
THIS AFTERNOON WITH ONLY SOME HIGH CLOUDS SKIRTING THE CWA. LEE
TROUGH HAS ALLOWED THE PRESSURE GRADIENT TO TIGHTEN SOME WITH THE
RKS-CPR WIND CORRIDOR RESPONDING AS WELL AS DUBOIS AND CODY. CHIEF
JOSEPH PASS IN THE NORTHEAST ABSAROKA MOUNTAINS PEAKED AT 57 KTS
THIS MORNING. THE WINDS WILL INCREASE AGAIN OVERNIGHT AS THE NEXT
JET STREAK DIGS ACROSS MONTANA TONIGHT INTO SUNDAY MORNING. GFS
SHOWING JUST UNDER 50KT AT H7 AND NAM12 SHOWING 60-70KTS BETWEEN
06Z AND 18Z SUNDAY. THIS WILL BE THE FORECAST PROBLEM FOR
TODAY...WHETHER TO UPGRADE THE HIGH WIND WATCH OVER THE ABSAROKAS
AND CODY FOOTHILLS TO A HIGH WIND WARNING. NOT EXPECTING MOUNTAIN
WAVE BREAKING AS INVERSION LIES BELOW MOUNTAIN TOP LEVEL AND NO
OTHER CRITICAL LAYER EXISTS. HOWEVER...THE PRESSURE GRADIENT IS
QUITE STRONG FAVORING HIGH WINDS FOR THE AREA NORTH OF CODY ALONG
HIGHWAY 120 AS WELL AS THE SOUTH FORK AND NORTH FORK CANYONS. FEEL
CONFIDENT THESE AREAS WILL HIT HIGH WIND CRITERIA WHILE CODY COULD
FLIRT WITH HIGH WIND BUT PROBABLY WONT REACH CRITERIA. AS FOR THE
ABSAROKAS...RIDGETOPS AND PASSES SHOULD FREQUENTLY REACH CRITERIA
OF 50 MPH GUSTS 75 MPH. SINCE THERE ARE WELL TRAVELED ROUTES IN
THESE AREAS WILL GO AHEAD AND UPGRADE BOTH WATCHES TO A WARNING.
WILL EXTEND THE WARNING UNTIL 18Z. OTHERWISE EXPECT WINDS AROUND
THE WIND RIVER BASIN TO RESPOND SOME THIS EVENING AND ESPECIALLY
SUNDAY AFTERNOON AND EVENING AS THE WAVES PASS. WILL STAY UNDER
HIGH WIND CRITERIA BUT SHOULD BE SUSTAINED AROUND 30 MPH AND
GUSTY. LOOKS TO BE A MILD DAY SUNDAY BEFORE THE FRONT MOVES IN
SUNDAY EVENING WITH TEMPERATURES IN THE 60S EAST OF THE DIVIDE.
FRONT MOVES INTO THE NORTH IN THE EVENING AND SPREADING SOUTH
OVERNIGHT. THE COLDEST AIR TO STAY NORTH AND EAST OF THE AREA WITH
-12C H7 TEMPS OVER THE NORTHEAST. LOW CLOUDS WILL MOVE IN BEHIND
THE FRONT...THOUGH MODELS PROJECTING LESS AND LESS MOISTURE WITH
EACH RUN. EXPECT MAINLY SOME VERY LIGHT SNOW OR FLURRIES...WITH
SOME LIGHT RAIN OR SPRINKLES EARLY. LITTLE ACCUMULATION EXPECTED.
LOW CLOUDS WILL DISSIPATE MONDAY AS THE THIRD SHORTWAVE EXITS INTO
THE PLAINS. MONDAY LOOKS COOL BEHIND THE FRONT UNDER LOW CLOUDS.
EXPECT LOWS TUESDAY MORNING INTO THE MID TO UPPER TEENS...AND
EVEN COLDER IN THE MOUNTAINS. WARMING TAKES PLACE TUESDAY WITH
TEMPERATURES CLOSE TO AVERAGE.

.LONG TERM...TUESDAY NIGHT THROUGH SATURDAY
NORTHWEST FLOW WITH CLIPPER SYSTEMS PASSING WELL TO THE NORTH OF
THE AREA...WILL DOMINATE THE WEATHER PATTERN THROUGH THURSDAY
NIGHT. THERE COULD BE ENOUGH MOISTURE FOR SOME PRECIPITATION
ACROSS THE NORTHWEST/NORTHERN MOUNTAINS THURSDAY AND THURSDAY
NIGHT. OTHERWISE...EXPECT ABOVE AVERAGE TEMPERATURES BY 5 TO 10
DEGREES AND MAINLY DRY WEATHER THROUGH THURSDAY NIGHT. BY FRIDAY
AND SATURDAY...MEDIUM RANGE MODELS ARE SHOWING THE FLOW BECOMING
MORE ZONAL AND A TAD MORE ACTIVE ACROSS THE COWBOY STATE...WITH A
SHORTWAVE TROUGH AFFECTING THE AREA. THE 00Z ECMWF SHOWS THIS WAVE
AFFECTING THE AREA LATE FRIDAY/FRIDAY NIGHT WHILE THE GFS IS
FRIDAY NIGHT INTO SATURDAY. HAVE SIDED WITH THE GFS FOR NOW...BUT
HAVE BROAD BRUSHED LOW POPS FOR FRIDAY AND SATURDAY WITH AN
EMPHASIS ON FRIDAY NIGHT AND SATURDAY. WILL WAIT TO SEE SOME RUN
TO RUN CONSISTENCY BEFORE INCREASING POPS TO MUCH.

&&

.AVIATION...
MID TO HIGH LEVEL CLOUDS WILL REMAIN OVER THE AREA THROUGH THE
OVERNIGHT HOURS...THOUGH COVERAGE EXPECTED TO MAINLY BE SCATTERED
ASIDE FROM NORTHERN WYOMING WHICH MAY SEE BROKEN COVERAGE. EXPECT
WIDESPREAD VFR CONDITIONS THROUGH 00Z MONDAY. AN INCREASED PRESSURE
GRADIENT THIS EVENING WILL CREATE STRONG WINDS OVER KCOD AFTER 06Z.
STRONG WINDS WILL SPREAD EASTWARD DURING THE OVERNIGHT HOURS...
IMPACTING THE WIND CORRIDOR BETWEEN KCPR AND KRKS BY 12Z...ALONG
WITH KRIW. WESTERLY WINDS OF 20 KTS GUSTING TO 30 KTS ARE EXPECTED
OVER THESE LOCATIONS...AND WILL REMAIN ELEVATED INTO SUNDAY EVENING.

&&

.FIRE WEATHER...
WESTERLY WINDS WILL INCREASE THROUGH THE WEEKEND AS THE PRESSURE
GRADIENT TIGHTENS. WINDS MAY BLOW AS STRONG AS 40 TO 50 MPH IN THE
ABSAROKA MOUNTAINS AS WELL AS OVER THE CODY FOOTHILLS LATE TONIGHT
AND INTO SUNDAY MORNING ALONG WITH GUSTS AS HIGH AS 60 TO 70 MPH.
A WARMING TREND WILL ENSUE THROUGH SUNDAY. HIGH TEMPERATURES WILL
REACH THE 60S AT MANY LOCATIONS EAST OF THE CONTINENTAL DIVIDE BY
SUNDAY ALONG WITH MINIMUM RELATIVE HUMIDITY AS LOW AS THE UPPER
TEENS TO LOW 20S ACROSS THE WIND RIVER BASIN...LANDER FOOTHILLS
AND SWEETWATER COUNTY. A COLD FRONT WILL PUSH SOUTH ACROSS WYOMING
SUNDAY NIGHT SHIFTING THE WINDS TO THE NORTH. LIGHT RAIN AND SNOW
WILL BREAK OUT ALONG AND BEHIND THE FRONT SUNDAY NIGHT AND INTO
MONDAY ACROSS NORTHERN AND EASTERN WYOMING. TEMPERATURES WILL BE BETWEEN
20 AND 25 DEGREES COOLER MONDAY ALONG WITH HIGHER RELATIVE HUMIDITIES.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...
HIGH WIND WARNING FROM MIDNIGHT THROUGH 11AM SUNDAY FOR WYZ002-003.

&&

SHORT TERM...TWB
LONG TERM...WM
AVIATION...BRANHAM
FIRE WEATHER...TWB

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
500 AM MDT SAT NOV 3 2007

WYZ001>020-022>030-041100-
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 NOV 3 2007

...HIGH WIND WATCH FROM LATE TONIGHT THROUGH SUNDAY MORNING FOR THE
CODY FOOTHILLS AND THE ABSAROKA MOUNTAINS...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

WEST WINDS MAY INCREASE TO 40 TO 50 MPH WITH GUSTS TO 60 TO 75 MPH IN
THE ABSAROKA MOUNTAINS AND PORTIONS OF THE CODY FOOTHILLS LATE
TONIGHT INTO SUNDAY MORNING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT WIND GUSTS IN EXCESS OF 45 MPH.
THANK YOU.

TEAM RIVERTON