Fire Weather Outlook Discussion
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000
FNUS22 KWNS 020842
FWDDY2

DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0342 AM CDT THU JUL 02 2015

VALID 031200Z - 041200Z

...SYNOPSIS...
A PERSISTENT MIDLEVEL RIDGE ACROSS THE WRN CONUS WILL BEGIN TO
DAMPEN AS A NRN STREAM SHORTWAVE TROUGH AMPLIFIES NEAR THE PACIFIC
COAST OF CANADA. A MODEST INCREASE IN MIDLEVEL WLYS WILL AID IN THE
DEVELOPMENT OF A LEE SFC TROUGH OVER THE INTERIOR PAC NW...WITH A
CORRESPONDING INCREASE IN SFC WINDS OCCURRING E OF THE CASCADE
RANGE. MEANWHILE...SEASONABLY RICH MOISTURE WILL REMAIN IN PLACE
ACROSS NRN CA INTO THE WRN GREAT BASIN...AND WILL SUPPORT SCATTERED
WET TSTM DEVELOPMENT DURING THE AFTERNOON AND EVENING. PREDOMINANTLY
WET TSTMS ARE ALSO FORECAST TO OCCUR ACROSS AZ/NM INTO THE CNTRL
ROCKIES.

...PARTS OF CNTRL WA AND CNTRL ORE...
W-NWLY SFC WINDS WILL INCREASE TO 15 TO LOCALLY 20 MPH DURING THE
AFTERNOON IN THE LEE OF THE CASCADE RANGE ACROSS CNTRL WA AND CNTRL
ORE. THIS WILL OCCUR AMIDST A MODESTLY TIGHTENING SFC PRESSURE
GRADIENT W OF A LEE SFC LOW...AND DEEP BOUNDARY-LAYER MIXING AS
DAYTIME TEMPERATURES APPROACH 100 F. CHANNELED FLOW THROUGH PARTS OF
THE COLUMBIA BASIN COULD LEAD TO LOCALLY STRONGER WINDS AS WELL.
PRECIPITATION AMOUNTS FROM RECENT TSTM ACTIVITY HAVE GENERALLY BEEN
LIGHT...WHICH SHOULD CONTINUE TO SUPPORT A FAVORABLE ENVIRONMENT FOR
RAPID FIRE SPREAD. BEHAVIOR OF ONGOING FIRES COULD ALSO BE MODIFIED
BY THE INCREASING W-NWLY WINDS.

...NRN SIERRA/WRN GREAT BASIN/FAR SRN CASCADES...
SIMILAR TO THU/D1...SCATTERED DIURNALLY ENHANCED TSTMS ARE FORECAST
TO DEVELOP ACROSS THE NRN SIERRA AND SRN CASCADE RANGES INTO THE WRN
GREAT BASIN. PW VALUES WILL GENERALLY REMAIN OVER 1 INCH...WHICH
WILL CONTINUE TO FAVOR PRIMARILY WET TSTMS. HOWEVER...A RISK FOR
LIGHTNING IGNITIONS COULD ACCOMPANY TSTMS AWAY FROM PRECIPITATION
CORES.

..ROGERS.. 07/02/2015

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




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