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...Saturday through Wednesday

Precipitation will increase again over our CWA from the southwest Sunday as a deeper Pacific trough nears the west coast. Snow level will lower to 4500-5500 feet Sunday as the southern part of the Pacific trough moves inland through CA and NV. The northern part of the trough will stay off the northwest coast and continue to send short wave troughs and more pcpn inland over our CWA the rest of the week, while also continuing to lower snow levels.

AVIATION

VFR with mostly clear skies through early afternoon. Patchy fog until 17Z in northern sheltered mountain valleys, including near KMYL. Higher clouds increasing from the south later today and tonight, with pcpn spreading north of the NV border by midnight tonight. Surface winds: E-SE 5-10 kt. NE gusts 20-25 kt near KJER. Winds aloft at 10kft MSL: SW 15 to 20 kt.

KBOI...VFR. Surface winds: SE 5-10 kt.

AIR STAGNATION

High pressure aloft will maintain the Air Stagnation Advisory through 8 AM MST Saturday, followed by improving conditions Saturday as stronger southwest winds aloft transfer down and scour the valleys.

BOI WATCHES/WARNINGS/ADVISORIES

ID...Air Stagnation Advisory until 8 AM MST Saturday IDZ011>014-028-033. OR...Air Stagnation Advisory until 8 AM MST /7 AM PST/ Saturday ORZ061-063-064.

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