Area Forecast Discussion
Issued by NWS Pendleton, OR

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000
FXUS66 KPDT 242249
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
344 PM PDT THU JUL 24 2014

.SHORT TERM...A DRY COOL WESTERLY FLOW IS SETTING UP OVER THE REGION
FOLLOWING THE DEPARTURE OF THE LOW PRESSURE SYSTEM THAT IMPACTED THE
AREA THE PAST COUPLE OF DAYS. THIS WILL LAST THROUGH FRIDAY THEN THE
WESTERN U.S. RIDGE PATTERN WILL BE REDEVELOPING OVER THE WEEKEND.
THIS WILL AMPLIFY A RIDGE OF HIGH PRESSURE OVER THE PACIFIC
NORTHWEST AND NORTHERN ROCKIES LEADING TO INCREASING TEMPERATURES.
EXPECT HIGH TEMPERATURES WILL BE BACK TO OR SLIGHTLY ABOVE NORMAL BY
SUNDAY. WILL ALSO SEE AN INCREASE SOUTHERLY FLOW CONTAINING SOME
MONSOON MOISTURE ADVECTING NORTHWARD BY SUNDAY WHICH COULD LEAD TO
SOME SHOWERS AND OR THUNDERSTORMS IMPACTING THE SOUTHERN AND EASTERN
PORTION OF THE FORECAST AREA.

.LONG TERM...SUNDAY NIGHT THROUGH THURSDAY. STRONG UPPER LEVEL RIDGE
WILL REMAIN OVER THE WESTERN THIRD OF THE COUNTRY NEXT WEEK. THIS
WILL BRING HOT WEATHER TO THE REGION. HIGHS WILL BE IN THE 90S FOR
MANY LOCATIONS WITH THE COLUMBIA BASIN GETTING NEAR 100. ASIDE FROM
THE HEAT THE MAIN CONCERN WILL BE MONSOON MOISTURE MOVING ACROSS THE
REGION AT TIMES GENERATING THUNDERSTORMS. AT THIS POINT MOISTURE IS
SOMEWHAT LIMITED AND FLOW ALOFT IS SOUTHWEST. BASED ON THIS HAVE
KEPT THE MENTION OF STORMS OVER THE HIGHER TERRAIN OF CENTRAL AND
NORTHEAST OREGON. 94

&&

.AVIATION...00Z TAFS. SCT 050-080 THROUGH SUNSET THEN CLEAR
OVERNIGHT INTO FRIDAY. WESTERLY WINDS 10-25KT THROUGH EVENING
BECOMING LIGHT AND VARIABLE OVERNIGHT. WESTERLY WINDS 5-15KT FRIDAY.
94

&&

.FIRE WX...BREEZY WINDS WILL CONTINUE THROUGH THE EVENING BEFORE
DECREASING OVERNIGHT. TEMPERATURES WILL WARM AND RELATIVE HUMIDITY
WILL DECREASE THROUGH THE WEEKEND. THE NEXT CONCERN WILL BE THE
POTENTIAL FOR SOME MONSOON MOISTURE MOVING INTO CENTRAL OREGON AS
EARLY AS SUNDAY AFTERNOON/EVENING. THIS COULD LEAD TO THE
DEVELOPMENT OF A FEW THUNDERSTORMS. MOISTURE WILL MOVE FURTHER NORTH
AND EAST ON MONDAY FOR A BETTER POTENTIAL FOR THUNDERSTORMS OVER
CENTRAL AND NORTHEAST OREGON DURING THE AFTERNOON AND EVENING. DMH

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  53  83  55  90 /   0   0   0   0
ALW  58  83  61  90 /   0   0   0   0
PSC  58  86  57  91 /   0   0   0   0
YKM  51  84  55  89 /   0   0   0   0
HRI  54  86  56  92 /   0   0   0   0
ELN  49  79  50  86 /   0   0   0   0
RDM  39  81  46  87 /   0   0   0   0
LGD  48  77  50  86 /   0   0   0   0
GCD  47  80  53  89 /   0   0   0   0
DLS  56  83  59  89 /   0   0   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

91/94/94





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