textproduct: Boise

This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.

LONG TERM...Monday through Friday

Mild, active pattern continues through the long term. A broad upper level trough will remain over Haida Gwaii, continuing to direct an atmospheric river over the area on Monday. Lower snow levels (4000-5000') will remain northwest of a line from Burns OR to McCall ID, with warmer air south and east (7000-8000') along the Snake Basin and areas south. Southwest flow continues into Wednesday with significant precipitation over the mountains through this time period. 1-2 inches of liquid equivalent expected Monday through Wednesday over the central ID mountains, with 10 to 20 inches of snow above 6500-7500'. The flow turns southerly and warm on Wednesday with temperatures warming into the mid 50s again in the Snake Plain. Mild and unsettled conditions continue Thursday and Friday with snow levels lowering to 3500-5000'. Slightly cooler temperatures expected on Thursday and Friday but still well above normal.

AVIATION

LLWS through Friday morning. Mountains obscured. Cold front slowly moves south today with rain and snow along the front. Snow Levels: 6-8 kft MSL lowering to sfc north of the front this afternoon. Surface winds: SW-SE 10-25 kt with gusts to 25-45 kt south of KBNO to KBOI to KTWF, shifting to NW 10-20kt north of cold front. Winds aloft at 10kft MSL: W-SW 55-70 kt easing to W-NW 35-50kt by 00z/Sat.

KBOI...VFR. LLWS through this morning. Cold front brings MVFR- IFR rain showers 23z/Fri to 03z/Sat. Possibly mixed with snow at end of that period. Surface winds: SE 10-15 kt with gusts 25 kt, becoming NW 10-15 kt behind the front.

Weekend Outlook...Showers tapering off Saturday with lingering mtn obscuration and patchy AM fog. Widespread rain/snow Sunday and mountain obscuration. Snow levels 3k-5kft MSL north of KBNO-KONO-KMYL, 7k-8kft MSL to south. Surface winds: SW-SE 5-10 kt Saturday. SW-SE 10-20 kt Sunday, with SW 20-30kt south of the Snake Basin in ID and south of KREO in OR.

BOI WATCHES/WARNINGS/ADVISORIES

ID...Wind Advisory until 5 PM MST this afternoon IDZ015-029-030. OR...Wind Advisory until 5 PM MST /4 PM PST/ this afternoon ORZ061-063.

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