Area Forecast Discussion
Issued by NWS Boise, ID

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FXUS65 KBOI 242027
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
227 PM MDT SUN MAY 24 2015

.SHORT TERM...TONIGHT THROUGH TUESDAY...A WEAK SHORT WAVE TROUGH
IS MOVING SOUTH THROUGH THE EASTERN PORTION OF THE CWA...ENHANCING
CONVECTION THERE. AS OF 225 PM MDT...THE STRONGEST STORMS WERE IN
OWYHEE COUNTY...WITH A MODERATE CELL MOVING THROUGH GOODING
COUNTY. BRIEF HEAVY RAIN IS POSSIBLE WITH THE STRONGEST CELLS.
CUMULUS CLOUDS HAVE BEEN DEVELOPING ACROSS SE OREGON AS WELL AND
WE STILL EXPECT ISOLATED SHOWERS AND STORMS THERE... ESPECIALLY IN
THE HIGHER TERRAIN. OTHERWISE TODAY APPEARS TO BE LESS ACTIVE THAN
YDAY. OUR UPPER LEVEL FLOW WILL BACK FROM NRLY TO WRLY FROM
TONIGHT TO TOMORROW AFTERNOON AS AN NEW UPPER LEVEL LOW MOVES SE
INTO WASHINGTON. THIS LOW WILL AID IN BRINGING ANOTHER ROUND OF
SHOWERS AND STORMS TO THE AREA FOR MEMORIAL DAY. WE WILL SEE A
SLIGHTLY DRIER ATMOSPHERE...AND THEREFORE THE CHANCE FOR
MEASURABLE PRECIP WILL DECREASE. THE BEST CHANCE FOR CONVECTION
TOMORROW AFTERNOON AND EVENING WILL BE ACROSS SE OREGON. SHEAR
WILL BE STRONGER TOMORROW...LEADING TO MORE ORGANIZED STORMS THAN
TODAY...EVEN THOUGH MOISTURE WILL BE SLIGHTLY LOWER. WE WILL SEE
OUR NORMAL OVERNIGHT LULL IN CONVECTION MONDAY NIGHT BEFORE
ANOTHER ROUND GREETS US TUE AFTERNOON. THIS TIME THE FOCUS WILL
SHIFT BACK TO OUR SW IDAHO ZONES...ESPECIALLY IN THE HIGHER
TERRAIN AND IN THE WESTERN MAGIC VALLEY. THERE WILL STILL BE A FEW
STORMS IN BAKER COUNTY AND SRN HARNEY AND MALHEUR COUNTIES. TEMPS
WILL CONTINUE THE TREND OF NEAR-NORMAL DAYTIME HIGHS AND ABOVE-
NORMAL LOWS...WITH WINDS REMAINING A NON-FACTOR EXCEPT NEAR
SHOWERS AND STORMS.

.LONG TERM...TUESDAY NIGHT THROUGH SUNDAY...A WEAK UPPER LEVEL
TROUGH WILL BRING SHOWERS AND AFTERNOON/EVENING THUNDERSTORMS TO
THE FORECAST AREA THROUGH FRIDAY. THE UPPER TROUGH REMAINS NORTH
OF THE REGION WHICH SHOULD KEEP TEMPERATURES ABOVE NORMAL.
TEMPERATURES WILL REACH THE MID 80S IN THE LOWER VALLEY BY
THURSDAY. A CHANGE TO DRY AND WARMER CONDITIONS IS EXPECTED FOR
NEXT WEEKEND AS AN UPPER LEVEL RIDGE BUILDS IN. WE EXPECT
TEMPERATURES WILL WARM INTO THE UPPER 80S TO LOW 90S /AROUND 10-15
DEGREES ABOVE NORMAL/ IN THE LOWEST VALLEYS BY SUNDAY.

&&

.AVIATION...VFR. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS
EXPECTED THROUGH LATE THIS EVENING. EXPECT HEAVY RAIN AND SMALL
HAIL WITH THE STRONGEST STORMS IN SW IDAHO. SURFACE WINDS...
NORTHWESTERLY 10-20KT THIS AFTERNOON. WINDS ALOFT AT 10K FT
MSL...NORTHERLY 5-15KT.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...SP
LONG TERM....JS/WH
AVIATION.....JS



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