Area Forecast Discussion
Issued by NWS Boise, ID

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
FXUS65 KBOI 290927
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
327 AM MDT FRI MAY 29 2015

.SHORT TERM...TODAY THROUGH SATURDAY...A BUILDING UPPER RIDGE
WILL BRING A WARMER TEMPERATURES INTO THE REGION...WITH VALLEY
HIGHS IN THE 80S TODAY AND SATURDAY. HIGHS WILL BE AROUND 90F IN
A FEW VALLEY LOCATIONS ON SATURDAY...INCLUDING BOISE AND MOUNTAIN
HOME. RESIDUAL MOISTURE ALONG WITH PACIFIC MOISTURE WITHIN A
SOUTHWEST FLOW ALOFT WILL RESULT IN A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF AFT-EVE THUNDERSTORMS /SUPPORTED BY DAYTIME
HEATING/ ACROSS THE NORTHERN MTNS AND THE SOUTHWEST IDAHO
HIGHLANDS. A WEDGE OF DRIER/STABLE AIR WITHIN THE SOUTHWEST FLOW
ALOFT WILL MAINTAIN DRY CONDITIONS ACROSS SOUTHERN HARNEY/MALHEUR
COUNTIES AND INTO THE TREASURE VALLEY.

.LONG TERM...SATURDAY NIGHT THROUGH FRIDAY...UPPER LEVEL RIDGE
WILL KEEP MOST OF THE REGION DRY THROUGH SUNDAY EVENING. DRY AIR
AHEAD OF THE NEXT UPPER LEVEL LOW PRESSURE SYSTEM WILL LIMIT
THUNDERSTORMS DEVELOPMENT TO THE HIGHER TERRAIN ON SUNDAY. MINIMAL
CLOUD COVER AND A SOUTHERLY FLOW WILL ALLOW TEMPERATURES TO REACH
10-15 DEGREES ABOVE NORMAL ON SUNDAY. MODELS ARE IN GOOD AGREEMENT
WITH UPPER LEVEL TROUGH MOVING INTO WASHINGTON STATE ON MONDAY. A
WEAK SHORTWAVE TROUGH MOVING ACROSS THE FORECAST AREA LATE SUNDAY
NIGHT EXITING TO OUR NORTHEAST MONDAY AFTERNOON AS WILL BE THE
FOCUS FOR SHOWERS AND MAYBE A FEW THUNDERSTORMS OVERNIGHT. DESPITE
FAVORABLE DYNAMICS WITH THIS SHORTWAVE THE EARLY MORNING TIMING
AND CLOUD COVER WILL LIMIT CONVECTIVE POTENTIAL TO SOUTH-CENTRAL
IDAHO. DRY MOVES IN BY 00Z TUESDAY ENDING THE CHANCES FOR SHOWERS
AND THUNDERSTORMS EXCEPT IN THE HIGHER TERRAIN. MODELS ARE IN
ABOVE AVERAGE AGREEMENT WITH THIS SYSTEM SO HAVE UPDATED THE
FORECAST POPS AND WEATHER ACCORDINGLY. A MUCH BETTER CHANCE FOR
SHOWERS AND THUNDERSTORMS ON WEDNESDAY AS THE UPPER LEVEL MOVES
ACROSS WASHINGTON STATE. THE TROUGH REMAINS OVER THE PACIFIC
NORTHWEST THROUGH FRIDAY. AFTERNOON/EVENING THUNDERSTORMS WILL
CONTINUE UNTIL THE END OF THE PERIOD. TEMPERATURES WILL BE
SLIGHTLY BELOW NORMAL THROUGH THE EXTENDED.

&&

.AVIATION...VFR. MOSTLY CLEAR SKIES. PATCHY VALLEY FOG FRIDAY
MORNING...ESPECIALLY NEAR KBKE. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE HIGHER TERRAIN THIS EVENING. SURFACE WINDS VARIABLE 10
KNOTS OR LESS. WINDS ALOFT NORTHWEST TO NORTH AROUND 10 KNOTS UP
THROUGH 10K FEET MSL.

&&

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

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...BW
LONG TERM....JS
AVIATION.....JS



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