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...Wednesday through Sunday

On Wednesday, a shortwave trough from the west will weaken as it moves onshore, briefly flattening the upper ridge overhead. However, accompanying moisture will not be sufficient enough to increase precipitation chances above 10% for the higher terrain. This weak trough will do little to destabilize the dense, valley cold pools in place, especially as the ridge quickly rebounds late Wednesday/Thursday and negates any mixing that occurs. Additional series of troughs are forecast to move into WA/BC Canada Thursday though the weekend. The main storm track will keep north of the forecast area, with only a 20% chance of precipitation clipping northeast Oregon and west-central Idaho Friday through Sunday. Despite the close proximity of these troughs, low and mid level flow will continue to have difficulty eroding the upper ridge and temp inversions. As a result, low elevation temperatures will stay near/below normal through the rest of the week, with the potential for gradual warming next weekend.

AVIATION

Generally VFR. Mountain valley fog/low stratus will bring intermittent LIFR conditions for central ID. Low confidence in MVFR- IFR stratus impacting KJER/KTWF this morning due to W-SW winds in the Magic Valley. Improving conditions this afternoon. Surface winds: variable up to 10kt. Winds aloft at 10kft MSL: N-NW 15-30kt.

KBOI...VFR. Surface winds: light SE, shifting to light NW this afternoon.

BOI WATCHES/WARNINGS/ADVISORIES

ID...None. OR...None.

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