Flash Flood Warning 3, NWS North Platte, NE

000 
WGUS73 KLBF 282319
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
619 PM CDT SUN JUN 28 2009

NEC029-085-290030-
/O.CON.KLBF.FF.W.0003.000000T0000Z-090629T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HAYES NE-CHASE NE-
619 PM CDT SUN JUN 28 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM CDT/630 PM
MDT/ FOR EAST CENTRAL CHASE AND SOUTHERN HAYES COUNTIES...

AT 616 PM CDT...THE PUBLIC REPORTED ROAD WASHOUTS NORTH OF PALISADE. 
THIS THUNDERSTORM PRODUCED 1.5 INCHES OF RAIN IN 45 MINUTES 9 MILES 
NORTH OF PALISADE.

THOUGH THE HEAVY RAIN HAS ENDED...RUNOFF MAY STILL OCCUR THROUGH 730 
PM CDT (630 PM MDT). 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

AVOID LOW SPOTS IN HILLY TERRAIN AS THEY ARE MORE PRONE TO FLOODING. 
DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND ALTERNATE 
ROUTES. IT TAKES ONLY A FEW INCHES OF SWIFTLY FLOWING WATER TO CARRY 
VEHICLES AWAY.

&&

LAT...LON 4060 10163 4051 10111 4049 10080 4035 10083
      4036 10130

$$

BUTTLER

000 
WGUS73 KLBF 290033
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
733 PM CDT SUN JUN 28 2009

NEC029-085-290042-
/O.EXP.KLBF.FF.W.0003.000000T0000Z-090629T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HAYES NE-CHASE NE-
733 PM CDT SUN JUN 28 2009

...THE FLASH FLOOD WARNING HAS EXPIRED FOR EAST CENTRAL CHASE AND
SOUTHERN HAYES COUNTIES...

THE THREAT FOR FLASH FLOODING HAS ENDED ACROSS EAST CENTRAL CHASE 
AND SOUTHERN HAYES COUNTY. 

IF FLASH FLOODING OCCURRED AT YOUR LOCATION...CONTACT LOCAL LAW 
ENFORCEMENT AND HAVE THEM PASS THE REPORT TO THE NATIONAL WEATHER 
SERVICE IN NORTH PLATTE. 

LAT...LON 4060 10163 4051 10111 4049 10080 4035 10083
      4036 10130

$$

BUTTLER

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
253 PM CDT SUN JUN 28 2009

.SYNOPSIS...
WEAK SFC HIGH AXIS EXTENDS ACROSS WRN NEBR INTO CNTRL KS. SFC WINDS
FROM THE SOUTH TO SOUTHWEST ACROSS ERN CO INTO WRN NEBR. SFC
MOISTURE IS INCREASING INTO SWRN NEBR WITH LEADING EDGE OF CUMULUS
FIELD. WCNTRL NEBR HAS BEEN UNDER MOCLDY SKIES TDY WITH A BKN070
DECK. H7 WAA. STILL EXPECT A FEW SHOWERS AND STORMS TO DEVELOP OR
MOVE INTO WCTRL AND SWRN NEBR LATE THIS AFTN AND EVENING.

DISCUSSION...

SHORT TERM DISCUSSION (TONIGHT THROUGH WEDNESDAY).

TONIGHT...INSTABILITY FROM 1000-2000 J/KG SFC BASED SHOWN BY THE
NAM12 AND RUC13 EARLY THIS EVENING GENERALLY NEAR AND SOUTH OF HWY 2
AND WEST OF BROKEN BOW. A WEAK DISTURBANCE APPROACHING FROM NWRN
NEBR SHOULD BE SUFFICIENT TO TRIGGER AT LEAST ISOLATED TSTMS
POSSIBLY ACROSS THE HYANNIS THROUGH THEDFORD CORRIDOR FROM WHICH
ACTIVITY SHOULD MOVE SOUTHEAST. ANOTHER AREA TO MONITOR WILL BE NERN
CO/FAR SWRN NEBR WHERE STRONGER HEATING AND PRESENT CU FIELD HAS NOW
DEVELOPED ISOLATED SHOWERS OR STORMS. A STORM OR TWO COULD PRESENT
LOCALLY DAMAGING WINDS AND HAIL TO 1 INCH IN DIAMETER. ALL ACTIVITY
SHOULD DIMINISH OR END AFTER MIDNIGHT.

UPPER RIDGE WILL STRENGTHEN MONDAY ACROSS THE DESERT SOUTHWEST.
UPPER LOW OVER THE GREAT LAKES WILL BRING NORTHWEST FLOW TO THE
REGION THROUGH TUESDAY. AS MOISTURE AND INSTABILITY RETURN...THIS IS
A FAVORABLE PATTERN FOR NOCTURNAL MESOSCALE CONVECTIVE SYSTEM (MCS)
EACH NIGHT. FAVORED AREA FOR DEVELOPMENT IS THE BLACK HILLS REGION
WITH STORM MOTION SOUTHEAST ACROSS WRN NEBR. HAVE INCREASED TO A LOW
CHC POPS ACROSS THE WEST FOR BOTH MONDAY AND TUESDAY NIGHT.
TEMPERATURES MONDAY WILL WARM FURTHER TO NEAR 90 WITH LOWER 90S
SOUTHWEST. THEN A BACKDOOR COLD FRONT MONDAY NIGHT IS FORECAST TO
BRING COOLER HIGHS TUESDAY TO THE NORTHEAST ERN HALF FROM THE LOWER
80S NORTHEAST AND MID 80S CNTRL SECTIONS. FAR SWRN NEAR IML WILL
AGAIN REACH THE LOWER 90S.

ON WEDNESDAY...SIMILAR PATTERN HOLD WITH UPPER LEVEL RIDGE CENTER
NEAR THE FOUR CORNERS WHILE AN UPPER LOW MOVES INTO SASKATCHEWAN
CANADA. HIGHS TO RANGE FROM NEAR 85 NORTHEAST TO NEAR 95 FAR
SOUTHWEST. FAST WESTERLIES WILL BE PRESENT ACROSS THE DAKOTAS WITH
NORTHWEST FLOW STILL INTACT ACROSS NEBR. ANOTHER MCS DEVELOPMENT
STILL FAVORABLE ONCE AGAIN WEDNESDAY NIGHT. WILL KEEP POPS IN SLIGHT
CHC RANGE HOWEVER.

EXTENDED DISCUSSION (THURSDAY THROUGH SUNDAY)...UPPER FLOW WILL TURN
MORE ZONAL AS UPPER RIDGE IS SHUNTED SOUTHEAST INTO TEXAS.
TEMPERATURES WILL RETURN TO SEASONABLE MID AND UPPER 80S
THURSDAY/FRIDAY WITH LOWER TO MID 80S SATURDAY AND SUNDAY. PATTERN
SUGGESTS WEATHER WILL BECOME MORE ACTIVE AS SFC LOW RESIDES TO OUR
SOUTH ACROSS KANSAS AND ABUNDANT SUBTROPICAL MOISTURE COULD SPAWN
POTENTIALLY HEAVY RAINFALL AT TIMES.

AVIATION...
SURFACE HIGH EXITING NEBRASKA AND LIGHT WINDS EXPECTED OVER THE
AREA.  SOUTH WINDS AND ASSOCIATED MOISTURE WILL WORK THEIR WAY INTO
THE TRISTATE AREA THIS EVENING ON THE BACK SIDE OF THE HIGH.

CONVECTION WILL BE THE MAJOR AVIATION FOCUS FOR WESTERN AND NORTH
CENTRAL NEBRASKA.  THUNDERSTORMS WILL DEVELOP WEST OF KLBF AFTER
0Z.  VFR CONDITIONS ARE EXPECTED AT KLBF AND KVTN THE THE PRIMARY
QUESTION BEING IF THUNDERSTORMS APPROACH KLBF.  DUE TO UNCERTAINTY
OF LOCATION AND COVERAGE OF STORMS KEPT THEM OUT OF THE KLBF TAF
ATTM... HOWEVER EXTENSIVE MID LEVEL CLOUDS EXPECTED THROUGH MUCH OF
THE OVERNIGHT.

&&

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

SHORT TERM/EXTENDED...ROBERG
AVIATION...HIRSCH

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTH PLATTE NE
346 PM CDT SUN JUN 28 2009

NEZ004>010-022>029-035>038-056>059-069>071-094-292045-
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-
346 PM CDT SUN JUN 28 2009 /246 PM MDT SUN JUN 28 2009/

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

.DAY ONE...TONIGHT.

THUNDERSTORMS HAVE DEVELOPED ALONG THE AXIS OF HIGHER DEW POINTS
EXTENDING FROM NEAR IMPERIAL DOWN THROUGH NORTH CENTRAL KANSAS.
THIS MOISTURE COM BINDED WITH SOME UPPER LEVEL DIVERGENCE NEAR THIS
AREA WILL ALLOW THUNDERSTORMS TO CONTINUE SOUTH OF HIGHWAY 23
THROUGH LATE AFTERNOON.

THIS EVENING AN UPPER LEVEL SHORT WAVE WILL MOVE OVER UNSTABLE AIR
IN PLACE OVER WESTERN NEBRASKA AND MAY HELP TO TRIGGER
THUNDERSTORMS SOUTH OF HIGHWAY 2 IN WESTERN NEBRASKA. ANY STORMS
WHICH DO DEVELOP WILL TRACK TO THE SOUTHEAST ENDING AROUND
MIDNIGHT ACROSS THE AREA.

THE PRIMARY HAZARD FROM THESE STORMS WILL BE FROM LIGHTNING.
HOWEVER GUSTY THUNDERSTORM WINDS CAN NOT BE RULED OUT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

SURFACE DEW POINTS WILL INCREASE THIS WEEK AND REMAIN HIGH ACROSS
THE ENTIRE AREA THROUGH THE WEEK...AND INTO THE HOLIDAY WEEKEND. AN
ACTIVE WEATHER PATTERN WILL BRING THE CHANCE OF THUNDERSTORMS
NEARLY EACH AFTERNOON OR EVENING. ISOLATED SEVERE WEATHER IS
POSSIBLE THIS WEEK WITH THE MOST ORGANIZED THUNDERSTORMS EXPECTED
THURSDAY INTO FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

&&

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

HIRSCH