Area Forecast Discussion
Issued by NWS Pendleton, OR

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS66 KPDT 250855
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
155 AM PDT FRI JUL 25 2014

.SHORT TERM...TODAY THROUGH SUNDAY...A QUIET WEATHER PATTERN WILL
DOMINATE THE SHORT TERM PERIOD. A 4 CORNERS HIGH PRESSURE RIDGE WILL
CONTINUE TO BUILD TO THE NORTHWEST OVER THE NEXT FEW DAYS. THIS WILL
BRING ABOUT A WARMING TREND WITH DRY CONDITIONS AND LOW HUMIDITY.
HOWEVER...THERE WILL BE SOME INCREASE IN MID LEVEL MOISTURE ON
SUNDAY FROM THE SOUTH AS THE FLOW BECOMES MORE SOUTHWEST ON THE WEST
SIDE OF THE UPPER RIDGE. THE AMOUNT OF MOISTURE WILL BE VERY
LIMITED. HOWEVER...THERE MAY BE ENOUGH OF IT TO WARRANT A MENTION OF
ISOLATED THUNDERSTORMS SUNDAY AFTERNOON OVER CENTRAL OREGON AND THE
CENTRAL OREGON CASCADE EAST SLOPES. ANY THUNDERSTORMS ARE EXPECTED
TO BE VERY ISOLATED. IF ANY DOES FORM PRECIPITATION AMOUNTS WILL BE
VERY LIGHT IF ANY. THIS MAY CAUSE FIRE WEATHER CONCERNS FOR SUNDAY
AFTERNOON AND EVENING OVER CENTRAL OREGON. WILL BRIEF THE DAY SHIFT
AND FIRE WEATHER SHIFT ON THIS SCENARIO. IN THE MEAN TIME THERE WILL
BE A SIGNIFICANT WARMING TREND THROUGH THE PERIOD WITH TODAY TOPPING
OUT IN THE 80S (70S MOUNTAINS)...WARMING TO THE MID 90S (80S IN THE
MOUNTAINS) BY SUNDAY AFTERNOON. THE WARMING TREND WILL CONTINUE INTO
THE EXTENDED PERIOD. WINDS WILL GENERALLY BE LIGHT THROUGH THE SHORT
TERM PERIOD. 88

.LONG TERM...SUNDAY NIGHT THROUGH THURSDAY...AN UPPER LEVEL RIDGE
WILL PERSIST OVER THE WESTERN THIRD OF THE COUNTRY NEXT WEEK.
SUBSIDENCE FROM THE RIDGE WILL BRING SOUTH TO SOUTHWEST FLOW AND HOT
TEMPERATURES TO THE REGION. HIGHS WILL BE IN THE 90S FOR MANY
LOCATIONS WITH THE COLUMBIA BASIN AROUND 100. MONSOON MOISTURE MAY
MOVE AROUND THE BACKSIDE OF THE RIDGE AT TIMES. AFTERNOON AND
EVENING THUNDERSTORMS MAY DEVELOP AS MOIST UNSTABLE FLOW COMBINES
WITH DAYTIME HEATING. MOISTURE WILL BE LIMITED PARTICULARLY AT LOWER
LEVELS. BASED ON THIS ONLY ISOLATED THUNDERSTORMS ARE
POSSIBLE...MAINLY OVER THE HIGHER TERRAIN OF CENTRAL AND NORTHEAST
OREGON.  COONFIELD

&&

.AVIATION...06Z TAFS...INCREASINGLY DRY WEST FLOW ALOFT WILL KEEP
CONDITIONS VFR AND MOSTLY CLEAR THROUGH THE NEXT 24 HOURS. A FEW
AFTERNOON CUMULUS MAY DEVELOP FRIDAY NEAR KBDN, KRDM AND KYKM. WINDS
WILL MAINLY BE 10 KTS OR LESS. THE EXCEPTION WILL BE AT KDLS WHERE
WINDS WILL BE GUSTIER DURING THE AFTERNOON AND EARLY EVENING FRIDAY.
90

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  82  55  88  61 /   0   0   0   0
ALW  84  61  90  66 /   0   0   0   0
PSC  86  57  91  63 /   0   0   0   0
YKM  83  55  87  61 /   0   0   0   0
HRI  86  56  90  61 /   0   0   0   0
ELN  80  50  84  56 /   0   0   0   0
RDM  81  46  85  51 /   0   0   0   0
LGD  79  50  85  56 /   0   0   0   0
GCD  83  53  89  58 /   0   0   0   0
DLS  84  59  87  63 /   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

$$

88/76/76








USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.