Frost Advisory 2, NWS North Platte, NE

589 
WWUS73 KLBF 141254
NPWLBF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
754 AM CDT WED MAY 14 2014

...FREEZE WARNING AND FROST ADVISORY CANCELLED...


NEZ004-022>025-035>037-056>059-094-141400-
/O.CAN.KLBF.FZ.W.0002.000000T0000Z-140514T1300Z/
SHERIDAN-GARDEN-GRANT-HOOKER-THOMAS-ARTHUR-MCPHERSON-LOGAN-DEUEL-
KEITH-PERKINS-LINCOLN-WESTERN CHERRY-
INCLUDING THE CITIES OF...GORDON...RUSHVILLE...OSHKOSH...
HYANNIS...MULLEN...THEDFORD...ARTHUR...TRYON...STAPLETON...
CHAPPELL...BIG SPRINGS...OGALLALA...GRANT...NORTH PLATTE...CODY...
MERRIMAN...KILGORE
754 AM CDT WED MAY 14 2014 /654 AM MDT WED MAY 14 2014/

...FREEZE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS CANCELLED THE
FREEZE WARNING. 

TEMPERATURES HAVE WARMED INTO THE MIDDLE 30S AS OF 730 AM CDT. THE
THREAT FOR FROST HAS ENDED. 

$$

NEZ005>010-026>029-038-069>071-141400-
/O.CAN.KLBF.FR.Y.0002.000000T0000Z-140514T1300Z/
EASTERN CHERRY-KEYA PAHA-BOYD-BROWN-ROCK-HOLT-BLAINE-LOUP-
GARFIELD-WHEELER-CUSTER-CHASE-HAYES-FRONTIER-
INCLUDING THE CITIES OF...VALENTINE...SPRINGVIEW...SPENCER...
AINSWORTH...BASSETT...ONEILL...DUNNING...TAYLOR...BURWELL...
BARTLETT...BROKEN BOW...IMPERIAL...HAYES CENTER...CURTIS...EUSTIS
754 AM CDT WED MAY 14 2014 /654 AM MDT WED MAY 14 2014/

...FROST ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS CANCELLED THE
FROST ADVISORY. 

TEMPERATURES HAVE WARMED INTO THE MIDDLE 30S AS OF 730 AM CDT. THE
THREAT FOR FROST HAS ENDED. 

$$

CLB

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
325 PM CDT TUE MAY 13 2014

.SYNOPSIS...
ISSUED AT 322 PM CDT TUE MAY 13 2014

A HIGH LATTITUDE BLOCK ACROSS ALASKA WILL LEAD TO THE FORMATION
OF A DEEP UPPER LEVEL LOW ACROSS THE GREAT LAKES THIS WEEK. THE
UPPER LEVEL LOW WILL SEND A REINFORCING COLD FRONT THROUGH THE
FCST AREA WEDNESDAY NIGHT FOLLOWED BY A GRADAUL WARM UP AND THE
DEVELOPMENT OF A LONG WAVE TROF ACROSS THE WRN U.S. EARLY NEXT
WEEK.

THE FORECAST CONCERNS TEMPERATURES AND CHANCES FOR SHOWERS AND
THUNDERSTORMS.

&&

.SHORT TERM...(THIS EVENING THROUGH WEDNESDAY)
ISSUED AT 322 PM CDT TUE MAY 13 2014

STEEP LAPSE RATES AND RESULTING ISOLATED/SCATTERED LIGHT RAIN
SHOWERS/SPRINKLES ACROSS WESTERN NEBRASKA WILL DIMINISH ONCE SUN
SETS. SKIES WILL THEN SLOWLY BECOME MOSTLY CLEAR OVERNIGHT. HIGH
PRESSURE OFF TO THE SW...OVER COLORADO ROCKIES...WITH LIGHT NW
WINDS. ANOTHER UNSEASONABLY COOL NIGHT WITH LOWS IN THE 30S AND EVEN
A FEW UPPER 20S IN THE RIVER VALLEYS. WILL ISSUE ANOTHER FREEZE
WARNING/FROST ADVISORY FOR THE CWA. COLDEST CONDITIONS ACROSS THE
WEST...WITH SIMILAR TEMPS TO WHAT WE RECORDED THIS MORNING.

TOMORROW MORNING A RETURN OF CU AND CONVECTIVE TEMPS FAIRLY LOW.
MOISTURE REMAINS MARGINAL AND EXPECT TO SEE A DECENT CU FIELD EARLY
IN THE DAY. POPCORN LIGHT RAIN SHOWERS OR SPRINKLES EXPECTED...WITH
HIGHS AROUND 60 TO THE MID 60S...ABOUT 5 TO 10 DEGREES BELOW
SEASONAL AVERAGES.

.LONG TERM...(WEDNESDAY NIGHT THROUGH TUESDAY)
ISSUED AT 322 PM CDT TUE MAY 13 2014

WEDNESDAY NIGHT THROUGH FRIDAY...THE MODELS ARE DELAYING RAIN
CHANCES UNTIL LATE THURSDAY NIGHT AND FRIDAY. THIS RAIN WOULD
DEVELOP AS A RESULT OF A DISTURBANCE MOVING IN THE STRONG NORTHWEST
FLOW ALOFT. GIVEN THE DELAY FACTOR AND THE WEAKNESS OF THIS
DISTURBANCE FCST TO EJECT OUT OF THE NORTHEAST PACIFIC
TONIGHT...FORECAST CONFIDENCE IS NOT GOOD. THE FORECAST USES A MODEL
BLEND OF GFS...GEM...NAM AND ECM FOR ISOLATED TO SCATTERED SHOWER
COVERAGE FRIDAY.

OTHERWISE...LITTLE OR NO RAIN IS EXPECTED THURSDAY...TOO DRY BELOW
700 MB...AND THE TEMPERATURE FORECAST REMAINS ON TRACK WITH HIGHS IN
THE UPPER 50S TO MID 60S THURSDAY AND FRIDAY. A WEAK REINFORCING
COLD FRONT WILL BACK IN WEDNESDAY NIGHT. THIS HIGH WILL RIDGE SOUTH
THROUGH THE UPPER MIDWEST AND CONTINUE THE SPELL OF BELOW NORMAL
TEMPERATURES THIS WEEK. THE MIN TEMPERATURE FORECAST THURSDAY
MORNING IS BELOW FREEZING IN THE PLATTE VALLEY AND THE NWRN
SANDHILLS.

FRIDAY NIGHT THROUGH TUESDAY...A FAIRLY STRONG SOUTH RETURN FLOW
DEVELOPS SATURDAY THROUGH TUESDAY IN RESPONSE TO DEEPENING LOW
PRESSURE ON THE NRN HIGH PLAINS. IN TIME...THIS LOW WILL DROP SOUTH
INTO THE CNTL HIGH PLAINS OF ERN COLO CAUSING WINDS TO BACK AROUND
TO THE SOUTHEAST. THE RESULT IS NO BIG WARM UP AT THE SFC BUT
WARMING ALOFT AT 700 MB PRODUCING A CAP. THUS THE GFS AND ECM ARE
FOCUSING MOST OF THEIR CONVECTION EITHER ACROSS THE HIGH PLAINS ON
THE NOSE OF THE LOW LEVEL WARM AIR ADVECTION OR NORTH OF THE FCST
AREA ACROSS THE DAKOTA WHERE THE CAP WOULD BE WEAK. THE FORECAST IS
FOR MOSTLY ISOLATED POPS SATURDAY THROUGH TUESDAY AND THIS MIGHT BE
GENEROUS.

WORSE...THERE IS A GOOD SIGNAL IN THE GFS AND ECM THAT STRATUS WOULD
BE FORMING SUNDAY THROUGH TUESDAY MORNINGS. THIS A RESULT OF THE
LARGE CANADIAN HIGH BUILDING INTO THE MIDWEST AND BECOMING
STATIONARY.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z WEDNESDAY AFTERNOON)
ISSUED AT 1240 PM CDT TUE MAY 13 2014

ISOLD/SCT HIGH BASED SHOWERS AND SPRINKLES WILL BE POSSIBLE
ACROSS WESTERN NEBRASKA THE AFTERNOON/EARLY THIS EVENING. BETTER
LIFT ACROSS NORTHWEST NEB WHERE SHOWERS WILL DEVELOP. NORTHWEST
FLOW WILL PUSH THE SHOWER TO THE SOUTHEAST...HOWEVER NOT AS STEEP
OF LAPSE RATE WILL RESULT IN DIMINISH SHOWERS...TO SPRINKLES OR
ENDING...ACROSS SW NEB. DID INCLUDE A SMALL WINDOW FOR KLBF
SHOWERS...TEMPO GROUP. BETTER MOISTURE/LIFT IS TO THE SOUTH AND
WEST OF KVTN...SO NO MENTION AT THIS TIME IN THE KVTN TAF. GUSTY
NORTHWEST WINDS CONTINUE THROUGH THE AFTERNOON...THEN DECOUPLING
WILL CAUSE LIGHT AND VARIABLE WINDS OVERNIGHT. NORTHWEST INCREASE
AGAIN WEDNESDAY MORNING.

&&

.LBF WATCHES/WARNINGS/ADVISORIES...
FREEZE WARNING FROM 3 AM CDT /2 AM MDT/ TO 8 AM CDT /7 AM MDT/
WEDNESDAY FOR NEZ004-022>025-035>037-056>059-094.

FROST ADVISORY FROM 3 AM CDT /2 AM MDT/ TO 8 AM CDT /7 AM MDT/
WEDNESDAY FOR NEZ005>010-026>029-038-069>071.

&&

SYNOPSIS...CDC
SHORT TERM...MASEK
LONG TERM...CDC
AVIATION...MASEK

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTH PLATTE NE
744 AM CDT TUE MAY 13 2014

NEZ004>010-022>029-035>038-056>059-069>071-094-141245-
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-
744 AM CDT TUE MAY 13 2014 /644 AM MDT TUE MAY 13 2014/

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

.DAY ONE...TODAY AND TONIGHT.

NEAR OR BELOW FREEZING TEMPERATURES AND FROST IS POSSIBLE
OVERNIGHT TONIGHT ACROSS ALL OF WESTERN AND NORTH CENTRAL
NEBRASKA.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

FROST WILL BE POSSIBLE THROUGH MID MORNING WEDNESDAY ACROSS ALL
OF WESTERN AND NORTH CENTRAL NEBRASKA.

THUNDERSTORMS ARE POSSIBLE SATURDAY THROUGH MONDAY ACROSS THE
OUTLOOK AREA. AT THIS TIME...THE THREAT FOR SEVERE STORMS IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

&&

GET YOUR WEATHER...HYDROLOGICAL...AND CLIMATE INFORMATION AT
HTTP://WWW.WEATHER.GOV/NORTHPLATTE (ALL LOWERCASE)

CLB