Red Flag Warning 5, NWS North Platte, NE

446 
WWUS83 KLBF 220847
RFWLBF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
347 AM CDT SUN AUG 22 2010

...CRITICAL FIRE WEATHER CONDITIONS EXPECTED TODAY ACROSS PARTS
OF WESTERN AND NORTH CENTRAL NEBRASKA...

.DEEP LOW PRESSURE ACROSS THE NORTHERN PLAINS AND HIGH PRESSURE
OVER THE CENTRAL ROCKIES WILL PRODUCE HOT...DRY AND WINDY
CONDITIONS ACROSS PARTS OF THE CENTRAL PLAINS TODAY. AS
TEMPERATURES RISE INTO THE UPPER 90S TO NEAR 100...HUMIDITY WILL
FALL BELOW 15 PERCENT AND SOUTH WINDS WILL INCREASE TO 20 TO
30 MPH WITH GUSTS TO NEAR 35 MPH.

NEZ204-206-208-222100-
/O.CON.KLBF.FW.W.0005.100822T1700Z-100823T0100Z/
EASTERN PANHANDLE/CRESCENT LAKE NWR-
SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/
SAMUEL R MCKELVIE NATIONAL FOREST-
NIOBRARA VALLEY/FORT NIOBRARA NWR-
347 AM CDT SUN AUG 22 2010 /247 AM MDT SUN AUG 22 2010/

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON CDT /11 AM MDT/
TODAY TO 8 PM CDT /7 PM MDT/ THIS EVENING FOR GUSTY WINDS AND LOW
HUMIDITY FOR FIRE WEATHER ZONES 204...206 AND 208...

* AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 204 EASTERN 
  PANHANDLE/CRESCENT LAKE NWR...FIRE WEATHER ZONE 206 
  SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/SAMUEL R 
  MCKELVIE NATIONAL FOREST...FIRE WEATHER ZONE 208 NIOBRARA 
  VALLEY/FORT NIOBRARA NWR.

* WIND...SOUTH WINDS 20 TO 30 MPH WITH GUSTS TO 35 MPH.

* HUMIDITY...RELATIVE HUMIDITY WILL FALL TO 15 TO 20 PERCENT 
  WITHSOME AREAS BELOW 15 PERCENT. 

* IMPACTS...DRY FUELS ARE AVAILABLE AND WITH THE GUSTY WINDS 
  AND LOW RELATIVE HUMIDITY...ANY FIRE HAS THE POTENTIAL TO 
  QUICKLY SPREAD OUT OF CONTROL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$


HTTP://WEATHER.GOV/NORTHPLATTE

931 
WWUS83 KLBF 230003
RFWLBF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
703 PM CDT SUN AUG 22 2010

...RELATIVE HUMIDITIES HAVE BEGUN TO RECOVER AND WINDS ARE DYING
DOWN ACROSS NORTH CENTRAL NEBRASKA...

.TEMPERATURES HAVE BEGUN TO COOL ACROSS NORTH CENTRAL AND WESTERN
NEBRASKA ALLOWING RELATIVE HUMIDITIES TO RECOVER. IN
ADDITION...GUSTY SOUTHERLY WINDS HAVE BEGUN TO DECREASE ACROSS THE
AREA. WINDS OVERNIGHT ARE EXPECTED TO RANGE FROM 10 TO 20 MPH WITH
MINIMUM RELATIVE HUMIDITIES RANGING FROM 60 TO 80 PERCENT. 

NEZ204-206-208-230115-
/O.CAN.KLBF.FW.W.0005.000000T0000Z-100823T0100Z/
EASTERN PANHANDLE/CRESCENT LAKE NWR-
SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/
SAMUEL R MCKELVIE NATIONAL FOREST-
NIOBRARA VALLEY/FORT NIOBRARA NWR-
703 PM CDT SUN AUG 22 2010 /603 PM MDT SUN AUG 22 2010/

...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW RELATIVE HUMIDITIES
FOR FIRE WEATHER ZONES 204...206 AND 208...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS CANCELED THE
RED FLAG WARNING. 

WINDS HAVE DECREASED AND RELATIVE HUMIDITIES HAVE RECOVERED OVER
THE PAST HOUR. RELATIVE HUMIDITIES WILL CONTINUE TO INCREASE TO 60
TO 80 PERCENT OVERNIGHT TONIGHT. LOOK FOR SOUTHERLY SURFACE WINDS
TO DECREASE TO 10 TO 20 MPH AFTER SUNSET. 

$$


HTTP://WEATHER.GOV/NORTHPLATTE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
306 AM CDT SUN AUG 22 2010

.DISCUSSION...

FORECAST CHALLENGE IS WINDS TODAY AS RELATIVE HUMIDITIES DROP INTO
THE AFTERNOON ACROSS THE NORTH. THE SURFACE LOW OVER EASTERN
MONTANA WILL MOVE NORTHEAST TO OUT ON THE WESTERN HIGH PLAINS BY
AFTERNOON. THE SURFACE PRESSURE GRADIENT STRENGTHENS ACROSS WESTERN
NEB WHERE WINDS WILL HIT ADVISORY CRITERIA FOR AREAS NORTH OF A
LINE FROM ANTIOCH TO ELSMERE AND MILLS. THEN STEEP LAPSE RATES
WILL AGAIN BE SEEN TO INCREASE MIXING WITH THE HEATING OF THE DAY.
THE COMBINATION OF HEAT...LOW HUMIDITIES AND GUSTY WINDS WILL
RAISE CRITICAL FIRE DANGERS ACROSS THE NORTH WITH THE RED FLAG WATCH
TO BE UPGRADED TO A RED FLAG WARNINGS THIS AFTERNOON. THE SURFACE TO H85
WINDS ARE FORECAST TO BE UNIDIRECTIONAL INTO THE AFTERNOON WHERE
WINDS AT 25 TO 35 MPH ARE POSSIBLE ACROSS THE NORTH BUT WILL NEED
TO BE MONITORED FURTHER SOUTH FOR WINDS HIGHER THAT WOULD REQUIRE
EXPANDING THE WIND ADVISORY THIS AFTERNOON. BEYOND THE HEAT AND WINDS TODAY
MOSTLY CLEAR SKIES PREVAIL AS TEMPERATURES CLIMB INTO THE 90S AND
POTENTIALLY A FEW TRIPLE DIGIT READINGS ACROSS THE FAR NORTH.

TONIGHT INTO MONDAY THE H85 JETLET STRENGTHENS WITH THE SOUTHERLY
WINDS TO RETURN MOISTURE NORTH AS THE COLD FRONT MOVES
SOUTHEAST...EXTENDING SOUTHWEST ACROSS THE BLACK HILLS BY MORNING.
THE MODELS CREATE A LITTLE SPREAD MONDAY INTO TUESDAY AS TO TIMING
IN PUSHING THE FRONT SOUTH AND AREAL QPF. FORECAST IS TRENDED
TOWARD THE NAM/GFS WITH CHANCE OF PRECIP TO DECREASE BEYOND
MIDNIGHT AS FRONT MOVES SOUTH INTO KANSAS. THE WINDOW FOR
PRECIPITATION DECREASES THROUGH THE WEEK AS THE UPPER RIDGE
REBUILDS ACROSS THE WEST AND MOVES EAST FOR CLEARING AND CLOSER TO
NORMAL TEMPERATURES FOR THE REST OF THE WORKWEEK.

&&

.AVIATION...

VFR TODAY AND TONIGHT. SOUTH WINDS INCREASE TO 18025G33KT THIS
AFTERNOON.

&&

.FIRE WEATHER...
RED FLAG WATCH UPGRADED TO RED FLAG WARNING AS CRITICAL THRESHOLDS
FOR WIND...TEMPERATURE AND HUMIDITY WILL BE REACHED ACROSS THE NORTH..DISCUSSION...

&&

.LBF WATCHES/WARNINGS/ADVISORIES...RED FLAG WARNING FROM NOON CDT /11 AM MDT/
TODAY TO 8 PM CDT /7 PM MDT/ THIS EVENING FOR NEZ204-206-208.

WIND ADVISORY FROM 1 PM CDT /NOON MDT/ THIS AFTERNOON TO 7 PM
CDT /6 PM MDT/ THIS EVENING FOR NEZ004>006-008-094.

&&

SHORT TERM/EXTENDED...KECK
AVIATION...CDC

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTH PLATTE NE
353 PM CDT SAT AUG 21 2010

NEZ004>010-022>029-035>038-056>059-069>071-094-222100-
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-
353 PM CDT SAT AUG 21 2010 /253 PM MDT SAT AUG 21 2010/

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

.DAY ONE...TONIGHT.

FIRE DANGER WILL BE EXTREME ACROSS NORTHWESTERN AND PORTIONS OF
NORTH CENTRAL NEBRASKA THIS EVENING...ALONG AND WEST OF HIGHWAY
183...AS RELATIVE HUMIDITY LEVELS HAVE DROPPED TO AROUND 15
PERCENT WITH SOUTH WINDS AT 10 TO 20 MPH.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

FIRE DANGER WILL BE EXTREME ACROSS WESTERN AND PORTIONS OF NORTH
CENTRAL NEBRASKA SUNDAY AFTERNOON AS HUMIDITY FALLS BELOW 20
PERCENT AND SOUTH WINDS INCREASE TO 25 MPH OR STRONGER. A WIND
ADVISORY MAY BE REQUIRED ACROSS CHERRY COUNTY FOR SOUTH WINDS
INCREASING TO 30 MPH OR GREATER SUNDAY AFTERNOON.

A COLD FRONT WILL MOVE THROUGH THE AREA LATE MONDAY AND
THUNDERSTORMS WILL BE POSSIBLE WITH THE FRONTAL PASSAGE. THE AREA
FROM IMPERIAL TO BROKEN BOW AND SOUTH MIGHT SEE AN ISOLATED SEVERE
THUNDERSTORM.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TONIGHT.

&&

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

MASEK