River Flood Warning 3, NWS Cheyenne, WY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHEYENNE WY
435 AM MDT THU JUN 5 2008

.SHORT TERM...TODAY THROUGH FRIDAY NIGHT...UPPER LOW SPINNING NEAR
FOUR CORNERS AREA CURRENTLY.  AFTER A BRIEF BREAK SHORTLY AFTER
MIDNIGHT...SHOWERS HAVE SPREAD BACK OVER ALL BUT THE NORTHERN AND
FAR WESTERN AND EASTERN EDGES OF CWA.  THIS TREND WILL CONTINUE
OVER NEXT SEVERAL HOURS WITH ENTIRE CWA GETTING PRECIP BY LATE
MORNING AS UPPER LOW LIFTS NORTHEAST INTO CO.  OF PARTICULAR
CONCERN NOW IS THE AREA BETWEEN KLAR AND KCYS WHERE A GOOD INCH OF
WATER FELL WED AND WED EVENING...AND MORE IS OCCURRING.  BY THIS
AFTERNOON THOUGH...HEAVIEST QPF SHOULD SHIFT TO AREAS EAST OF I-25.
SPC DAY 1 OUTLOOK INCLUDES FAR SOUTHEAST PART OF CWA BUT FIGURE
IT WILL STAY TOO COOL FOR OTHER THAN SOME SMALL HAIL.  UPPER LOW
WILL BE OVER NORTHEAST CO THIS AFTERNOON AND SHIFT INTO WESTERN
NEBRASKA THIS EVENING.  WRAP AROUND PRECIP WILL CONTINUE MAINLY
OVER EASTERN HALF OF CWA THIS EVENING BEFORE IMPROVEMENT SPREADS
FROM WEST TO EAST THU NIGHT AS BOTH UPPER AND SURFACE LOW MOVE
NORTHEAST AWAY FROM US.  FRIDAY WILL BRING A COMPLETE REVERSAL
OF WX CONDITIONS UNDER RISING UPPER HEIGHTS AND A SHORTWAVE RIDGE.
INCREASING DOWNSLOPE WINDS WILL BRING MUCH WARMER TEMPS AND IT
WILL BE DRY EXCEPT FOR PERHAPS A FEW LATE AFTERNOON AND EVENING
TSTMS OVER FAR NORTHERN AND WESTERN EDGES OF CWA NEAR A WEAK
COLD FRONT.  THIS FRONT WILL PUSH SOUTH ACROSS THE CWA FRI NIGHT.

.LONG TERM...SATURDAY THROUGH WEDNESDAY...
SW FLOW WILL BE ALOFT SAT AND SUN AS A BROAD UPPER TROUGH REMAINS
OVER THE REGION.  MID LEVEL MOISTURE AND INSTABILITY WILL BE PRESENT
BOTH DAYS...SO WILL KEEP A SLIGHT CHANCE OF LATE DAY THUNDERSTORMS
IN THE FORECAST.  ON MON...SW FLOW WILL CONTINUES ALOFT AS THE UPPER
TROUGH AXIS MOVES INTO WESTERN WYOMING.  PLENTY OF MOISTURE WILL BE
AVAILABLE WITH UPSLOPE FLOW AT THE SURFACE.  THIS WILL RESULT IN A
SLIGHT CHANCE OF AFTERNOON AND EVENING THUNDERSTORMS...MAINLY EAST
OF THE LARAMIE RANGE.  FOR TUES...THE UPPER TROUGH AXIS WILL MOVE
ACROSS THE CWA WITH THE UPPER FLOW BECOMING NW AS THE UPPER TROUGH
AXIS MOVES EAST OF THE AREA.  A COLD FRONT ASSOCIATED WITH THE UPPER
TROUGH WILL MOVE INTO THE WESTERN PORTION OF THE CWA TUES MORNING
AND WILL BE EAST OF THE FORECAST AREA BY EVENING.  WILL KEEP A
SLIGHT CHANCE OF THUNDERSTORMS IN THE FORECAST...ONCE AGAIN MAINLY
EAST OF THE LARAMIE RANGE.  FOR WED...WESTERLY FLOW WILL BE ALOFT AS
ANOTHER UPPER TROUGH MOVES FROM THE PAC NW INTO THE NORTHERN
ROCKIES.  DRY CONDITIONS WILL PREVAIL ON WED.  HIGH TEMPERATURES
WILL BE AROUND NORMAL FOR SAT AND SUN...AND 3 TO 7 DEGREES ABOVE
NORMAL FOR MON THROUGH WED.

&&

.AVIATION...WIDESPREAD MVFR AND EVEN SOME IFR CEILINGS AND VSBYS
WILL PREVAIL TODAY INTO THIS EVENING.  IMPROVEMENT WILL MOVE FROM
WEST TO EAST ACROSS THE CWA THU NIGHT WITH VFR CONDITIONS ON FRI
...AND WINDY AREAS DEVELOPING ALONG AND WEST OF I-25.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...FLOOD WARNING FOR THE UPPER NORTH PLATTE RIVER AT SARATOGA
     AND ENCAMPMENT RIVER AT RIVERSIDE IN CARBON COUNTY INTO
     THIS EVENING.
     FLOOD WATCH FOR SOUTHWEST CARBON COUNTY WYZ061-WYZ063
     THROUGH 6 AM FRIDAY.
NE...NONE.

&&

JLH/KMD

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
520 AM MDT THU JUN 5 2008

NEZ001>003-019>021-054-055-WYZ059>062-064>070-061130-
SIOUX-DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-
CHEYENNE-CONVERSE-NIOBRARA-SOUTHWEST CARBON-NORTH CARBON-
NORTH LARAMIE RANGE-LARAMIE VALLEY-LARAMIE RANGE-PLATTE-GOSHEN-
CHEYENNE FOOTHILLS-PINE BLUFFS-
520 AM MDT THU JUN 5 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA
PANHANDLE AND SOUTHEAST WYOMING.

.DAY ONE...TODAY AND TONIGHT

ISOLATED THUNDERSTORMS WILL OCCUR THIS AFTERNOON AND EARLY EVENING
ACROSS THE AREA. SOME SMALL HAIL WILL BE POSSIBLE WITH THE
STRONGER STORMS...BUT SEVERE STORMS ARE NOT EXPECTED.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SOME LATE DAY THUNDERSTORMS WILL OCCUR FRIDAY ACROSS CONVERSE AND
NIOBRARA COUNTIES. A SLIGHT CHANCE OF LATE DAY THUNDERSTORMS CAN
BE EXPECTED EACH DAY FROM SATURDAY THROUGH TUESDAY...MAINLY EAST
OF THE LARAMIE RANGE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED...BUT SPOTTERS ARE ENCOURAGED
TO REPORT RAINFALL AMOUNTS AND ANY FLOODING THAT MAY BE OCCURRING.

&&

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

WYZ063-061130-
SNOWY RANGE-
520 AM MDT THU JUN 5 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST WYOMING.

.DAY ONE...TODAY AND TONIGHT

A FLOOD WATCH REMAINS IN EFFECT FOR RIVERS AND STREAMS FLOWING OUT
OF THE SNOWY RANGE UNTIL 6 AM FRIDAY. PERIODS OF RAIN AND ISOLATED
THUNDERSTORMS WILL OCCUR ACROSS THIS AREA TODAY.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE IS A SLIGHT CHANCE OF AFTERNOON THUNDERSTORMS ON SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED...BUT SPOTTERS ARE ENCOURAGED
TO REPORT RAINFALL AMOUNTS AND ANY FLOODING THAT MAY BE OCCURRING.

&&

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