Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 160850
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0350 AM CDT THU AUG 16 2007
VALID 161200Z - 171200Z
...CRITICAL FIRE WEATHER AREA FOR MOST OF OR...NE CA...NORTHERN
NV...FOR LOW RELATIVE HUMIDITY VALUES...HOT SFC TEMPS...
...CRITICAL FIRE WEATHER AREA FOR MOST OF ID...WESTERN MT...WESTERN
WY...NORTHERN UT...EXTRM NE NV...FOR DRY THUNDERSTORMS...
...SYNOPSIS...
THE UPPER-LEVEL TROUGH ENTERING THE PACIFIC NORTHWEST WILL PROVIDE A
FOCUS FOR VARYING FIRE WEATHER SCENARIOS DURING THE FORECAST PERIOD.
AHEAD OF THIS TROUGH...CONDITIONS WILL BE FAVORABLE FOR BOTH DRY
THUNDERSTORMS OVER THE NORTHERN ROCKIES AND CRITICAL FIRE WEATHER
CONDITIONS OVER PORTIONS OF CALIFORNIA...NEVADA...AND OREGON.
ELSEWHERE IN THE COUNTRY...A COLD FRONT WILL MOVE THROUGH THE OHIO
RIVER VALLEY BRINGING WIDESPREAD PRECIPITATION...AND HOT WEATHER
WILL CONTINUE IN THE GREAT PLAINS AND SOUTHEASTERN UNITED STATES.
EARLY IN THE PERIOD...TROPICAL STORM ERIN WILL MOVE INTO SOUTHERN
TEXAS.
...CRITICAL FIRE WEATHER AREA - MOST OF OR...NE CA...NORTHERN NV...
PRIMARY CONDITIONS: LOW RELATIVE HUMIDITY VALUES...HOT SURFACE
TEMPERATURES...LONG-TERM DROUGHT
A HOT AND DRY AIRMASS WILL REMAIN IN PLACE OVER THE REGION DURING
THE FORECAST PERIOD...AS THE UPPER-LEVEL TROUGH CONTINUES TO MOVE
EASTWARD INTO THE AREA. DURING THE LATE AFTERNOON...RELATIVE
HUMIDITY VALUES WILL DROP FROM THE SINGLE DIGITS INTO THE TEENS
WHILE SURFACE TEMPERATURES WILL SOAR INTO THE MID 90S F TO AROUND
100F. THIS AREA IS CURRENTLY UNDER A FAIRLY LONG-TERM DROUGHT AND
SURFACE FUELS ARE VERY DRY. ADDITIONALLY...SOME AREAS WILL SEE
STRONG AND GUSTY SURFACE WINDS AROUND 15 TO 20 MPH...ESPECIALLY IN
NORTHEASTERN CALIFORNIA.
...CRITICAL FIRE WEATHER AREA - MOST OF ID...WESTERN MT...WESTERN
WY...NORTHERN UT...EXTRM NE NV...
PRIMARY CONDITIONS: DRY THUNDERSTORMS
AHEAD OF THE APPROACHING TROUGH IN THE PACIFIC NORTHWEST...A PLUME
OF MONSOONAL MOISTURE WILL ADVECT NORTHWARD INTO THE REGION FROM THE
FOUR CORNERS AREA. THIS AIRMASS OVER THE REGION IS RELATIVELY
UNMODIFIED FROM WEDNESDAY...THAT PRODUCED DRY THUNDERSTORMS AND
SEVERAL FIRE STARTS IN EASTERN OREGON. THE NAM PREDICTS A COUPLE OF
IMPLUSES TO ROTATE THROUGH THE EDGE OF THE TROUGH...ESPECIALLY INTO
IDAHO AND MONTANA...AND THE ASSOCIATED VERTICAL MOTION COMBINED WITH
THE MID-LEVEL MOISTURE SOURCE WILL HELP PROVIDE THE NECESSARY LIFT
FOR THUNDERSTORM DEVELOPMENT. AS IN PREVIOUS DAYS...THE BOUNDARY
LAYER OF THIS AIRMASS REMAINS HOT AND DRY...SO MOST RAIN FROM STORMS
WILL EVAPORATE BEFORE REACHING THE GROUND...AND LOCALLY INTENSE
DOWNDRAFTS FROM STORMS ARE LIKELY. WINDS PRODUCED FROM THE STORMS
WILL BE ERRATIC IN NATURE AND INTERACTION WITH COMPLEX TERRAIN COULD
CAUSE RAPID CHANGES IN WIND DIRECTION.
...SOUTHEASTERN UNITED STATES AND THE GREAT PLAINS...
BOTH OF THESE AREAS WILL EXPERIENCE...ONCE AGAIN...HOT AND DRY
CONDITIONS...ESPECIALLY DURING THE AFTERNOON...WITH RECORD
TEMPERATURES AGAIN POSSIBLE IN THE SOUTHEASTERN STATES. THE LACK OF
AREAS OF SIGNIFICANT WIND SPEEDS WILL LOWER THE FIRE WEATHER
RISK...BUT THE HOT WEATHER CONTINUES TO DRY SURFACE FUELS IN THE
REGION.
..LEVIT.. 08/16/2007
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
Click for Day 2 FireWX Areal Outline Product
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 161000
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0500 AM CDT THU AUG 16 2007
VALID 171200Z - 181200Z
...CRITICAL FIRE WEATHER AREA FOR NV...ID...WESTERN UT...EASTERN
OR...NORTHEASTERN CA...FOR DROUGHT...HOT AND DRY WEATHER...
...CRITICAL FIRE WEATHER AREA FOR UT...WY...SOUTHWESTERN
ID...EASTERN NV...FOR DRY THUNDERSTORMS...
...SYNOPSIS...
THE TROUGH OVER THE PACIFIC NORTHWEST BECOMES FIRMLY ESTABLISHED IN
THE REGION DURING THE FORECAST PERIOD. DRY THUNDERSTORMS AND
CRITICAL FIRE WEATHER CONDITIONS ARE POSSIBLE...AHEAD OF THE
TROUGH...OVER THE CENTRAL ROCKY MOUNTAINS INTO THE GREAT BASIN.
ACROSS THE EASTERN TWO-THIRDS OF THE UNITED STATES...HOT AND DRY
CONDITIONS REMAIN IN THE CENTRAL PLAINS...BUT WILL BE SOMEWHAT
MITIGATED WITH THE APPROACH OF THE REMNANTS OF TROPICAL STORM
ERIN...WHICH WILL BRING WIDESPREAD RAINFALL TO TEXAS AND OKLAHOMA.
FURTHER EAST...IN THE SOUTHEASTERN STATES...HOT TEMPERATURES WILL
CONTINUE.
...CRITICAL FIRE WEATHER AREA - NV...ID...WESTERN UT...EASTERN
OR...NORTHEASTERN CA...
PRIMARY CONDITIONS: HOT AND DRY SURFACE WEATHER...LONG-TERM
DROUGHT...GUSTY SURFACE WINDS
THE FORECAST FOR THIS REGION IS SIMILAR TO THE PREVIOUS FORECAST
PERIOD...ONLY THAT THE AIRMASS CONTAINING THESE FIRE WEATHER
CONDITIONS HAS TRANSLATED SLIGHTLY TO THE EAST AS THE TROUGH DIGS
INTO THE WESTERN UNITED STATES. STRONG AND GUSTY SURFACE WINDS WILL
BE POSSIBLE...WITH SOME AREAS EXPERIENCING WINDS AROUND 15 TO 20
MPH. LOW RELATIVE HUMIDITY VALUES AGAIN WILL BE IN THE SINGLE DIGITS
TO THE MID TEENS...AND GIVEN THE DRY FUELS IN THE REGION AND HOT
SURFACE TEMPERATURES...CRITICAL FIRE WEATHER CONDITIONS WILL EXIST.
...CRITICAL FIRE WEATHER AREA - UT...WY...SOUTHWESTERN ID...EASTERN
NV...
PRIMARY CONDITIONS: DRY THUNDERSTORMS
CONDITIONS WILL AGAIN BE FAVORABLE OVER THE CENTRAL ROCKY MOUNTAINS
FOR DRY THUNDERSTORMS...AS THE AIRMASS OVER THE REGION REMAINS
RELATIVELY UNMODIFIED FROM PREVIOUS DAYS. MONSOONAL MOISTURE WILL
CONTINUE TO ADVECT NORTHWARD INTO THE AREA AND STRONG VERTICAL
MOTION...ESPECIALLY OVER WYOMING AND IDAHO...WILL CREATE FAVORABLE
CONDITIONS FOR THE DEVELOPMENT OF DRY THUNDERSTORMS IN THE LATE
AFTERNOON AND EARLY EVENING HOURS.
...HIGH PLAINS AND SOUTHEASTERN UNITED STATES...
STRONG WIND SPEEDS...AND A HOT AND DRY AIRMASS WILL BE IN PLACE OVER
THE PLAINS...BUT THE SOUTHERN EXTENT OF A FIRE WEATHER RISK WILL BE
MITIGATED BY THE CLOUD AND PRECIPITATION AREA FROM THE REMNANTS OF
TROPICAL STORM ERIN. THE SOUTHEASTERN UNITED STATES WILL CONTINUE
TO EXPERIENCE ABOVE NORMAL SURFACE TEMPERATURES AND DRYING OF FUELS.
..LEVIT.. 08/16/2007
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...