Fire Weather Outlook Discussion
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000
FNUS21 KWNS 301557
FWDDY1

DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1056 AM CDT SAT AUG 30 2014

VALID 301700Z - 311200Z

NO CHANGES.  PREVIOUS OUTLOOK REMAINS ON TRACK.

..BOTHWELL.. 08/30/2014

.PREV DISCUSSION... /ISSUED 0239 AM CDT SAT AUG 30 2014/

...SYNOPSIS...
LARGE UPPER TROUGH...EXTENDING FROM CNTRL BC SWD INTO THE GREAT
BASIN...WILL CONTINUE EWD. SOME DEEPENING IS EXPECTED LATE IN THE
PERIOD AS AN EMBEDDED SHORTWAVE TROUGH MOVES ACROSS OREGON AND THE
NRN GREAT BASIN. FARTHER E...WEAKENING SHORTWAVE TROUGH INITIALLY
OVER THE UPPER MS VALLEY WILL MOVE NEWD ACROSS THE UPPER GREAT LAKES
AND INTO ERN ONTARIO. SUBTROPICAL RIDGE...CENTERED JUST OFF THE
CAROLINA COAST...WILL REMAIN FIRMLY IN PLACE WHILE AN REMNANT
TROPICAL WAVE TRAVERSES ITS WRN PERIPHERY /LWR MS VALLEY NEWD INTO
THE OH VALLEY/. AT THE SURFACE...LEE TROUGHING IS ANTICIPATED ACROSS
THE NRN HIGH PLAINS IN RESPONSE TO THE APPROACHING UPPER TROUGH.
SURFACE CYCLOGENESIS IS EXPECTED NEAR THE BLACK HILLS WITH THE
RESULTANT LOW TRACKING NEWD INTO ERN ND BY 12Z/SUN.

...CNTRL NV...
MID/UPPER LEVEL WLY FLOW IS EXPECTED TO INCREASE OVER THE REGION
THROUGHOUT THE DAY AS THE UPPER TROUGH MOVES EWD. DEEP BOUNDARY
LAYER MIXING COMBINED WITH ENHANCED DOWNSLOPE EFFECTS WILL SUPPORT
SUSTAINED WLY SURFACE WINDS FROM 15 TO 25 MPH WITH GUSTS AROUND 35
MPH AND MIN RH VALUES FROM 7 TO 12 PERCENT. STRONGEST WIND SPEEDS
ARE EXPECTED FOR AN HOUR OR TWO AROUND 00Z/SUN. THESE CONDITIONS ARE
SUPPORTIVE OF ELEVATED TO LOCALLY CRITICAL FIRE WEATHER
CONDITIONS...PARTICULARLY ACROSS W-CNTRL NV. DURATION OF CRITICAL
WIND SPEEDS IS EXPECTED TO BE LESS THAN 3 HOURS...PRECLUDING AN
UPGRADE TO CRITICAL WITH THIS FORECAST.

...W-CNTRL/SW UT...NRN LWR CO RIVER VALLEY...
SWLY WINDS AROUND 20 MPH ARE EXPECTED DURING THE LATE AFTERNOON
AMIDST RH VALUES NEAR 15 PERCENT. THESE METEOROLOGICAL CONDITIONS
ARE SUPPORTIVE OF ELEVATED FIRE WEATHER CONDITIONS BUT FUELS ACROSS
THE AREA ARE MOIST...PRECLUDING ANY DELINEATIONS.

...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...




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