521
FXUS65 KBOI 080617
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
1217 AM MDT FRI MAY 8 2026
UPDATE
UPDATED AVIATION DISCUSSION.
KEY MESSAGES
- CONTINUED WARM, DRY, AND BREEZY THROUGH FRIDAY WITH
TEMPERATURES AROUND 10 DEGREES ABOVE NORMAL.
- DRY COLD FRONT FRIDAY AFTERNOON LEADING TO SLIGHT COOLING
SATURDAY.
- TEMPERATURES WARMING TO 15-20 DEGREES ABOVE NORMAL NEXT SUNDAY
THROUGH WEDNESDAY.
SHORT TERM /THROUGH SUNDAY NIGHT/
ISSUED 206 PM MDT THU MAY 7 2026
A NEARLY STATIONARY RIDGE OF HIGH PRESSURE REMAINS ANCHORED
ALONG THE COAST, KEEPING THE REGION WARM AND DRY THROUGH FRIDAY.
TEMPERATURES WILL REMAIN 5 TO 10 DEGREES ABOVE NORMAL FOR EARLY
MAY, WITH HIGHS REACHING THE MID 70S TO LOW 80S IN THE LOWER
VALLEYS. SURFACE WINDS WILL REMAIN BREEZY DURING THE AFTERNOON
HOURS, GENERALLY FROM THE WEST OR NORTHWEST AT 10 TO 20 MPH WITH
GUSTS UP TO 30 MPH, ESPECIALLY WITHIN THE SNAKE BASIN. A
WEAKENING UPPER LEVEL TROUGH MOVING THROUGH THE PACIFIC WILL
PUSH A DRY COLD FRONT ACROSS SOUTHEAST OREGON AND SOUTHWEST
IDAHO FRIDAY AFTERNOON AND EVENING. WHILE THE FRONT LACKS THE
MOISTURE TO PRODUCE PRECIPITATION, IT WILL BRING A PERIOD OF
INCREASED WINDS. WINDS WILL GUST TO AROUND 30 MPH BEHIND THE
FRONT FRIDAY EVENING BEFORE TAPERING OFF OVERNIGHT. SATURDAY
WILL SEE A SLIGHT REPRIEVE FROM THE HEAT AS TEMPERATURES DROP
CLOSER TO SEASONAL AVERAGES, THOUGH THE COOLING WILL BE BRIEF.
BY SATURDAY NIGHT, THE RIDGE BEGINS TO RE-AMPLIFY OVER THE
WESTERN UNITED STATES, SETTING THE STAGE FOR A SIGNIFICANT
WARMING TREND HEADING INTO THE SECOND HALF OF THE WEEKEND.
LONG TERM /MONDAY THROUGH FRIDAY/
ISSUED 206 PM MDT THU MAY 7 2026
AMPLIFYING RIDGING OVER OVER THE WESTERN CONUS WILL GIVE WAY TO THE
WARMEST TEMPERATURES OF THE SEASON THROUGH THE LONG-TERM PERIOD. A
"COLD" FRONT LATE SUNDAY WILL OFFER JUST A FEW DEGREES OF COOLING
AND BREEZIER CONDITIONS FOR MONDAY. THROUGHOUT THE PERIOD,
TEMPERATURES WILL BE 15-20 DEGREES ABOVE NORMAL, WITH TEMPERATURES
IN THE SNAKE PLAIN RANGING FROM 85 TO 95 DEGREES. SOME MONSOONAL
MOISTURE COULD WORK ITS WAY INTO OUR AREA BY MID-WEEK NEXT WEEK.
ALTHOUGH UNCERTAINTY IS HIGHER IN THAT SOLUTION.
AVIATION /06Z FRIDAY THROUGH SATURDAY/
ISSUED 1214 AM MDT FRI MAY 8 2026
VFR WITH FEW TO SCATTERED HIGH CLOUDS OVERNIGHT. SURFACE WINDS:
VARIABLE OR SW 5-10 KT OVERNIGHT THROUGH MORNING, THEN W-NW
10-20 KT IN THE AFTERNOON/EVENING WITH GUSTS 25-30 KT. WINDS
ALOFT AT 10KFT MSL: W-NW 15-30 KT.
KBOI...VFR. SURFACE WINDS: VARIABLE 3-8 KT OVERNIGHT THROUGH
MORNING, THEN NW 8-12 KT WITH GUSTS UP TO 20 KT IN THE
AFTERNOON/EVENING.
WEEKEND OUTLOOK...VFR. SURFACE WINDS W-NW 5-10KT WITH GUSTS UP TO 25
KT NEAR KMUO/KTWF/KJER SATURDAY AFTERNOON/EVENING, BECOMING SW-SE 5-
15KT SUNDAY. A COLD FRONT LATE SUNDAY WILL RETURN NW GUSTS OF 20-30
KT.
BOI WATCHES/WARNINGS/ADVISORIES
ID...NONE.
OR...NONE.
WWW.WEATHER.GOV/BOISE
INTERACT WITH US VIA SOCIAL MEDIA:
WWW.FACEBOOK.COM/NWSBOISE
WWW.X.COM/NWSBOISE
AVIATION.....JY
SHORT TERM...JDS
LONG TERM....NF
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