Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 250804
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0304 AM CDT FRI SEP 25 2009
VALID 251200Z - 261200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
A CLOSED UPPER-LEVEL LOW OVER THE CNTRL PLAINS WILL GRADUALLY
ACCELERATE EWD AS A VIGOROUS UPPER-LEVEL JET SHIFTS FROM THE NERN
PACIFIC ACROSS SWRN CANADA. A MID-LEVEL RIDGE AXIS WILL REMAIN
ANCHORED OVER NRN CA INTO THE NWRN GREAT BASIN.
...SRN CA COASTAL MTNS N OF THE LOS ANGELES BASIN...
MODEST MID-LEVEL ELYS TO THE S OF NRN CA RIDGE AXIS WILL MAINTAIN
WEAK OFFSHORE FLOW IN THE LOW-LEVELS ACROSS THE TRANSVERSE RANGES N
OF THE LOS ANGELES BASIN. WITH POOR OVERNIGHT RH RECOVERY...A LONG
DURATION OF CRITICALLY LOW RH WILL PERSIST AMIDST A DEEPLY MIXED
BOUNDARY LAYER DURING THE AFTERNOON TO EARLY EVENING. MIN RH VALUES
WILL FALL TO BETWEEN 4 AND 8 PERCENT.
..GRAMS.. 09/25/2009
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 250927
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0427 AM CDT FRI SEP 25 2009
VALID 261200Z - 271200Z
...CRITICAL FIRE WEATHER AREA FOR CNTRL/ERN MT...
...SYNOPSIS...
AN INTENSE UPPER-LEVEL JET /250 MB WINDS AOA 150 MPH/ WILL BECOME
CENTERED FROM THE NRN PLAINS TO THE CANADIAN ROCKIES BY EARLY SUN.
AN ASSOCIATED SHORT WAVE TROUGH WILL AMPLIFY SEWD ACROSS THE
CANADIAN PRAIRIES. AN ATTENDANT SURFACE COLD FRONT WILL REACH THE
FAR NRN HIGH PLAINS BY EARLY EVENING SAT...ACCELERATING SEWD DURING
THE LATTER HALF OF THE PERIOD.
...CRITICAL FIRE WEATHER AREA - CNTRL/ERN MT...
PRIMARY CONDITIONS: STRONG WINDS / LOW RH / RECENT DRYNESS
LOW/MID-LEVEL WLYS WILL STRENGTHEN MARKEDLY THROUGH THE DAY AS AN
INTENSE UPPER-LEVEL JET GRADUALLY OVERSPREADS THE AREA. A WELL-MIXED
BOUNDARY LAYER WILL SUPPORT SUSTAINED SURFACE WINDS REACHING 20 TO
30 MPH DURING THE LATE AFTERNOON. TEMPERATURES SHOULD WARM INTO THE
80S WITH RH VALUES DROPPING TO BETWEEN 12 AND 20 PERCENT. GUSTY
WINDS WILL CONTINUE THROUGH THE EVENING...VEERING TO THE NW AND N IN
THE WAKE OF A COLD FRONT PASSAGE.
...COLUMBIA BASIN OF ERN WA...
LOCALIZED/SHORT-DURATION CRITICAL CONDITIONS APPEAR PROBABLE SAT
AFTERNOON...AS THE REGION LIES ON THE SRN PERIPHERY OF A
MID/UPPER-LEVEL JET CENTERED FROM SWRN CANADA INTO THE NRN HIGH
PLAINS. SUSTAINED SURFACE WINDS SHOULD APPROACH 20 MPH AROUND PEAK
HEATING AS RH VALUES DROP TO AROUND 20 PERCENT.
...PORTIONS OF S-CNTRL/SERN WY...
LOCALIZED/SHORT-DURATION CRITICAL CONDITIONS SHOULD DEVELOP DURING
THE LATE AFTERNOON SAT...ALONG THE NRN SLOPES OF THE S-CNTRL
MTNS/WRN SLOPES OF THE LARAMIE MTNS. AS LOW-LEVEL WLYS STRENGTHEN
DURING THE AFTERNOON...SUSTAINED SURFACE SPEEDS SHOULD BRIEFLY REACH
20 MPH LATE IN THE DAY. THIS SHOULD BE JUXTAPOSED WITH RH VALUES
AROUND 15 PERCENT.
..GRAMS.. 09/25/2009
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...