Fire Weather Outlook Discussion
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FNUS21 KWNS 301650
FWDDY1

DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1149 AM CDT SAT JUL 30 2016

VALID 301700Z - 311200Z

...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE COLUMBIA BASIN FOR
STRONG WINDS AND LOW RH...
...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NERN NV...NRN
UT...SRN/ERN ID...WRN WY...FAR SWRN MT FOR DRY THUNDERSTORMS...

THE PRIMARY CHANGE TO THE OUTLOOK IS TO EXPAND THE SCATTERED DRY
THUNDERSTORM AREA NORTHWARD TO INCLUDE PORTIONS OF SRN/ERN ID...WRN
WY...AND FAR SWRN MT...WHERE SCATTERED COVERAGE OF THUNDERSTORMS IS
EXPECTED WITH LIMITED RAINFALL...AND DRY FUELS WILL BE PRONE TO
LIGHTNING CONDITIONS. GUSTY AND ERRATIC WINDS WILL BE POSSIBLE
ACROSS THE ENTIRE SCATTERED DRY THUNDERSTORM AREA...WITH SOME
POTENTIAL FOR LARGER/STRONGER OUTFLOWS GIVEN RELATIVELY WIDESPREAD
STORM COVERAGE.

A SMALL ELEVATED AREA WAS ALSO ADDED ACROSS PORTIONS OF THE SNAKE
RIVER PLAIN AND ADJACENT RANGES...WHERE SUSTAINED WINDS OF 15-20 MPH
WITH HIGHER GUSTS COMBINED WITH MINIMUM RH VALUES OF 10-15 PERCENT
WILL RESULT IN ELEVATED WIND/RH CONDITIONS THIS AFTERNOON.

THE CRITICAL AREA ACROSS THE COLUMBIA BASIN AND THE SURROUNDING
ELEVATED AREA ARE UNCHANGED FROM THE PREVIOUS OUTLOOK...SEE THE
PREVIOUS DISCUSSION BELOW FOR MORE DETAILS.

..DEAN.. 07/30/2016

.PREV DISCUSSION... /ISSUED 0225 AM CDT SAT JUL 30 2016/

...SYNOPSIS...
AN UPPER SHORTWAVE TROUGH WILL EMERGE OVER THE PACIFIC NORTHWEST AND
NORTHERN ROCKIES TODAY LEADING TO FALLING HEIGHTS AND INCREASING
WESTERLY FLOW OVER THE REGION. THIS WILL AID IN DEVELOPMENT OF
ISOLATED TO SCATTERED THUNDERSTORMS ACROSS A LARGE PORTION OF THE
GREAT BASIN INTO PARTS OF THE NORTHERN ROCKIES. THESE STORMS MAY BE
A MIX OF WET AND DRY MODES...WITH HIGHER PW VALUES WITH SOUTHWARD
EXTENT INTO CENTRAL NV/UT. GIVEN CRITICALLY DRY FUELS AND ISOLATED
TO SCATTERED STORMS...LIGHTNING IGNITIONS WILL BE OF PARTICULAR
CONCERN TODAY. FURTHERMORE...INCREASED WESTERLY DEEP LAYER FLOW WILL
LEAD TO ELEVATED TO CRITICAL FIRE WEATHER CONDITIONS FROM THE
COLUMBIA BASIN SOUTHWARD ACROSS EASTERN OREGON INTO NORTHEAST
CA/NORTHWEST NV. WIND SPEEDS WILL RANGE FROM 20-25 MPH WITH SOME
HIGHER GUSTS IN THESE LOCATIONS...WITH RH VALUES FALLING INTO THE
10-20 PERCENT RANGE.

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

$$


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