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 031514
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
914 AM MDT FRI JUL 3 2015

.DISCUSSION...SKIES ARE MOSTLY SUNNY THIS MORNING AND ARE EXPECTED
TO REMAIN THAT WAY THROUGH THE DAY AND INTO THE EVENING. THE
EXCEPTION WILL BE ALONG THE NV BORDER WHERE ISOLATED STORMS ARE
FORECAST. TEMPS REMAIN WELL ABOVE NORMAL...WITH A FEW DEGREES
OVER 100 IN THE LOWER ELEVATIONS. NO CHANGES THIS MORNING.

&&

.AVIATION...VFR. SCATTERED HIGH-BASED CUMULUS AND ISOLATED SHOWERS
AND THUNDERSTORMS DEVELOPING NEAR THE NEVADA BORDER AFTER 20Z.
WEST/NORTHWEST SURFACE WINDS GENERALLY 10 KTS OR LESS THROUGH 04Z
TONIGHT. NORTHWESTERLY WINDS ALOFT WILL AVERAGE 15 KTS THROUGH 10K
FT MSL.

&&

.PREV DISCUSSION...
SHORT TERM...TODAY THROUGH SATURDAY...UPPER HIGH STRETCHED ACROSS
THE GREAT BASIN WILL START A SLOW RETREAT SOUTH AND EAST OVER THE
NEXT COUPLE OF DAYS. THIS WILL ACT TO TAKE A FEW DEGREES OFF THE
HEAT BY SATURDAY. AS THE UPPER RIDGE AXIS PULLS EAST OF THE AREA
..MID-LEVEL FLOW WILL SHIFT TO THE WEST...INCREASING MOISTURE.
THE AFTERNOON HEATING AND INSTABILITY AND DEEPER MOISTURE /PW
VALUES APPROACH ONE INCH ALONG THE NV BORDER ON SATURDAY/ WILL
BRING A GREATER CHANCE OF SHOWERS AND THUNDERSTORMS TO SOUTHERN
ZONES BORDERING NV AND LIKELY INCREASE CLOUD COVER FURTHER NORTH.
SHOWER/STORM ACTIVITY WILL REMAIN HIGH-BASED WITH DRY LOWER
LEVELS SUPPORTING THE THREAT OF GUSTY OUTFLOW WINDS.

LONG TERM...SATURDAY NIGHT THROUGH THURSDAY...UPPER LEVEL RIDGE
THAT HAS BROUGHT THE 100+ DEGREE VALLEY TEMPERATURES FOR PAST
WEEK WILL WEAKEN AND MOVE SOUTHEAST. UPPER LEVEL MOISTURE WILL
SLOWLY MOVE NORTHWARD TOWARDS THE FORECAST AREA BY MONDAY
AFTERNOON AS THE CENTER OF THE UPPER LEVEL RIDGE MOVES SOUTHEAST
INTO THE FOUR CORNERS REGION. AN UPPER LEVEL TROUGH WILL MOVE INTO
THE MIDWEST KEEPING OUR REGION ON THE INTERFACE BETWEEN
COOLER/STABLE AIR TO THE NORTH AND THE MONSOONAL MOISTURE TO THE
SOUTH OF THE FORECAST AREA. BY WEDNESDAY AN UPPER LEVEL TROUGH OFF
THE CALIFORNIA COAST BEGINS TO MOVE INLAND FOR INCREASED CHANCES
OF SHOWERS AND THUNDERSTORMS. THE MODELS DIFFER ON THE TIMING OF
THIS SYSTEM MOVING THROUGH THE REGION...VARYING FROM FRIDAY
AFTERNOON TO SATURDAY AFTERNOON. TEMPERATURES WILL GRADUALLY COOL
THROUGHOUT THE EXTENDED PERIOD BUT STILL REMAIN ABOVE NORMAL.

&&

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

&&

$$

WEATHER.GOV/BOISE

DISCUSSION...SP
AVIATION.....MT
PREV SHORT TERM...DG
PREV LONG TERM....KA


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