Severe Thunderstorm Warning 278, NWS North Platte, NE

000 
WWUS53 KLBF 100348
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1047 PM CDT MON JUL 9 2007

NEC031-100415-
/O.CON.KLBF.SV.W.0278.000000T0000Z-070710T0415Z/
CHERRY NE-
947 PM MDT MON JUL 9 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM
MDT(1115 PM CDT) FOR NORTHERN CHERRY COUNTY...

AT 1046 PM CDT(946 PM MDT)...NATIONAL WEATHER SERVICE DOPPLER RADAR
CONTINUED TO INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF
PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 22 MILES NORTH OF SPARKS TO
CROOKSTON TO 8 MILES WEST OF MERRIMAN...OR ALONG A LINE EXTENDING
FROM 20 MILES SOUTHWEST OF WINNER TO 11 MILES NORTHWEST OF VALENTINE
TO 16 MILES SOUTH OF MARTIN...MOVING SOUTHEAST AT 55 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  NENZEL...MERRIMAN AND CROOKSTON BY 1055 PM CDT...
  HIGHWAY 61 CROSSING THE NIOBRARA RIVER...HIGHWAY 12 MILE MARKER 10
  AND VALENTINE BY 1100 PM CDT...
  INTERSECTION OF HIGHWAY 61 AND SHADBOLT ROAD...SMITH FALLS STATE
  PARK AND SPARKS BY 1105 PM CDT...
  HIGHWAY 97 CROSSING THE NIOBRARA RIVER BY 1110 PM CDT...

DAMAGING WINDS UP TO 80 MPH WERE REPORTED IN SOUTH DAKOTA WITH THIS 
LINE OF STORMS. THIS IS A DANGEROUS SITUATION...SEEK SAFE SHELTER 
AND STAY AWAY FROM WINDOWS

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 AM MDT
TUESDAY MORNING(400 AM CDT TUESDAY MORNING) FOR NORTHWESTERN
NEBRASKA.

LAT...LON 4300 10023 4297 10103 4299 10205 4267 10201
      4271 10059 4272 10022

$$

13

000 
WWUS53 KLBF 100419
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1118 PM CDT MON JUL 9 2007

NEC031-100428-
/O.EXP.KLBF.SV.W.0278.000000T0000Z-070710T0415Z/
CHERRY NE-
1018 PM MDT MON JUL 9 2007

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CHERRY COUNTY EXPIRES
AT 1015 PM MDT(1115 PM CDT)...

THE LINE OF STORMS WHICH HAD PROMPTED THE WARNING HAVE MOVED 
EASTWARD OUT OF NORTHEASTERN CHERRY COUNTY...AND WEAKENDED ACROSS 
NORTHWESTERN CHERRY COUNTY. THEREFORE THE WARNING HAS BEEN ALLOWED 
TO EXPIRE. ADDITIONAL THUNDERSTORMS WILL BE POSSIBLE OVER THE NEXT 
FEW HOURS. IF SEVERE WAS EXPERIENCED PLEASE RELAY ANY REPORTS TO 
LOCAL LAW ENFORCEMENT OFFICIALS. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 AM MDT
TUESDAY MORNING(400 AM CDT TUESDAY MORNING) FOR NORTHWESTERN
NEBRASKA.

LAT...LON 4300 10023 4297 10103 4299 10205 4267 10201
      4271 10059 4272 10022

$$

13

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
318 PM CDT MON JUL 9 2007

.SYNOPSIS...
A WEAK MESOHIGH FROM LAST NIGHTS CONVECTION LINGERS ACROSS WRN
NEBRASKA WITH CLEAR SKIES IN THE NORTHWEST. TEMPS WARMING TO THE MID
AND UPPER 80S. DEWPOINTS A RESPECTABLE MID TO UPPER 50S FROM
NEBRASKA PANHANDLE NORTHWEST INTO NORTHEASTERN WYOMING. UPSTREAM
DISTURBANCE INDICATED ON WATER VAPOR IMAGERY SLIDING INTO NRN
WYOMING AS OF 20Z. SFC FRONT AT 20Z LOCATED ACROSS FAR SERN CWFA.
TEMPS NEAR 90 MOST AREAS. MID AFTN CONVECTION INITIATING IN WYOMING
WITH STRONGEST STORMS LOCATED NEAR BUFFALO WYOMING.

.SHORT TERM DISCUSSION...
PRECIP CHANCES WILL BE ON THE INCREASE TONIGHT AS DISTURBANCE DROPS
SOUTHEAST FUELING THUNDERSTORM DEVELOPMENT FROM ERN WY AND BLACK
HILLS REGION INTO ERN PANHANDLE SWRN ZONES. IN THESE AREAS HAVE
INSERTED 30 TO 50 POPS. ADDITIONAL THUNDERSTORMS POSSIBLE ACROSS
REMAINDER OF AREA AS COLD FRONT SWEEPS ACROSS WITH 20 TO 30 POPS.
HEAVILY FAVORED THE NAM SOLUTION FOR POPS AND QPFS AND ALSO A LOOK
AT 15Z SREF REINFORCES NAM SOLUTION. WITH POSSIBILITY OF AN MCS
DEVELOPMENT INTO THE WEST AND SOUTHWEST OVERNIGHT...HEAVY RAINFALL
AGAIN POSSIBLE AS PRECIPITABLE WATER VALES AGAIN 100 TO 125 PERCENT
OF NORMAL. ACTIVITY MAY LINGER IN SWRN NEBRASKA TUESDAY MORNING
BEFORE DISSIPATING.

TEMPS TO REMAIN BELOW NORMAL IN THE LOWER TO MID 80S TUESDAY AND
WEDNESDAY WITH A LEAST A SLIGHT CHANCE FOR THUNDERSTORMS EACH DAY
ACROSS THE SOUTH. NORTHWEST FLOW ALOFT TO CONTINUE FOR THURSDAY AS
WELL WITH A SLIGHT CHANCE ACROSS THE WEST.

.LONGER TERM DISCUSSION...FOR FRIDAY THROUGH MONDAY.

AS UPPER TROUGH IN THE EAST RETREATS EASTWARD...UPPER RIDGE WILL
GRADUALLY BUILD BACK INTO THE PLAINS FRIDAY THROUGH MONDAY BRINGING
A GRADUALLY WARMUP EACH DAY. RETAINED SLIGHT CHC FOR THUNDERSTORMS
FAR WEST FRIDAY LATE AFTERNOON AND EVENING...THEN DRY BEYOND. BY
SUNDAY...HIGHS SHOULD RETURN TO THE UPPER 80S AND LOWER 90S REGION
WIDE WITH READINGS LIKELY IN THE 90S MONDAY.

&&

.AVIATION...
A COLD FRONT TO PUSH SOUTHEAST INTO NORTHWEST NEBRASKA AFTER
MIDNIGHT WILL BRING A CHANCE FOR THUNDERSTORMS ACROSS TWEB ROUTE 098
AFTER MIDNIGHT AND 264 BEFORE DAYBREAK TUESDAY. ISOLATED CONVECTION
WILL ALSO BE SEEN NEAR THE FOOTHILLS IMPACTING THE DENVER TERMINAL
THIS EVENING. VFR CONDITIONS WILL BE ENCOUNTERED THROUGH THE EVENING
WITH MVFR CONDITIONS AFTER MIDNIGHT ACROSS NORTHWEST NEBRASKA AS THE
FRONT PUSHES SOUTHEAST AND CLOUDS LOWERING.

&&

.LBF WATCHES/WARNINGS/ADVISORIES...NONE.

&&

KAR/TLK

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1022 PM CDT MON JUL 9 2007

NEZ004>010-022>029-035>038-056>059-069>071-094-110330-
SHERIDAN-EASTERN CHERRY-KEYA PAHA-BOYD-BROWN-ROCK-HOLT-GARDEN-
GRANT-HOOKER-THOMAS-BLAINE-LOUP-GARFIELD-WHEELER-ARTHUR-MCPHERSON-
LOGAN-CUSTER-DEUEL-KEITH-PERKINS-LINCOLN-CHASE-HAYES-FRONTIER-
WESTERN CHERRY-
1022 PM CDT MON JUL 9 2007 /922 PM MDT MON JUL 9 2007/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND
NORTH CENTRAL NEBRASKA.

.DAY ONE...TONIGHT.
SCATTERED THUNDERSTORMS WILL MOVE INTO WESTERN AND NORTH CENTRAL
NEBRASKA THROUGH THE REMAINDER OF THE NIGHT. THE STRONGEST STORMS
WILL HAVE THE POTENTIAL TO PRODUCE DAMAGING WINDS IN EXCESS OF 60
MPH AND LARGE HAIL...MAINLY ACROSS PORTIONS OF SHERIDAN...CHERRY
AND POSSIBLY KEYA PAHA COUNTIES.

THE STORMS WILL CONTINUE TO MOVE SOUTHEAST ACROSS MUCH OF WESTERN
AND NORTH CENTRAL NEBRASKA OVERNIGHT...BUT ARE EXPECTED TO WEAKEN
SOME DURING THE NIGHT. HOWEVER...SOME STORMS WILL STILL HAVE THE
POTENTIAL TO PRODUCE HEAVY RAIN.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

ADDITIONAL THUNDERSTORMS ARE IN THE FORECAST ON TUESDAY WITH THE
THE FRONT REMAINING IN THE AREA...AND ADDITIONAL UPPER LEVEL
DISTURBANCES. THEN A SLIGHT CHANCE FOR THUNDERSTORMS FOR THE
SOUTHWEST AND PANHANDLE AREAS DAILY THROUGH FRIDAY...AS STORMS
WILL HAVE THE POTENTIAL TO DEVELOP WITH THE HEATING OF THE DAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

&&

THIS PRODUCT IS NOW AVAILABLE...ALONG WITH OTHER WEATHER...
HYDROLOGICAL AND CLIMATOLOGICAL INFORMATION...AT
HTTP://WWW.WEATHER.GOV/NORTHPLATTE

JWS