Marine Weather and Tide Forecast for Robie Creek, ID

SHORT TERM /Through Sunday Night/
Cold, dry air currently over our CWA with clear skies and light winds under northerly flow aloft. At 2 AM MDT all areas were below 32 degrees with Burns and Rome/OR the coldest at 22 degrees. The Freeze Warning for the Treasure and Magic Valley agricultural areas has verified, and temps are expected to stay below freezing until 10 AM MDT. However, daytime highs will rise rapidly (about 10 degrees per day) today through Monday, as a Pacific upper ridge moves onshore. Nights will warm more slowly, and another freeze is forecast for the ag valleys tonight, but not quite as cold as the current night. The next Pacific upper low is now forecast to stay offshore until Tuesday night so warm, dry weather should continue through at least late Tuesday, whereas yesterday's models had Tuesday already wet.

LONG TERM /Monday through Friday/
A closed low will reside along the West Coast early next week, pulling warm southerly air into SE Oregon and SW Idaho. This will drive Monday's temperatures to 10-15 degrees above seasonal normals, peaking at upper 70s/low 80s for the low elevations. While these mild conditions persist into Tuesday, precipitation will begin to increase across E Oregon late Tue as the center of the low shifts inland. By Wednesday and Thursday, the low is forecast to move overhead, generating breezy surface winds and expanding the shower activity into SW Idaho. High mountain snow will accumulate as snow levels lower to 5000-7000 ft MSL. Forecast models diverge late in the week regarding the track of the low, but current ensemble guidance suggests two-day liquid precip totals of 0.10" to 0.40" for valleys, and 0.50" to 1.00" in the mountains through Thursday night. Temperatures will lower to near-seasonable values for Wed-Fri.

AVIATION /06Z Friday through Saturday/
Issued 1225 AM MDT FRI APR 17 2026

Isolated snow showers this morning over the west-central mtns producing localized MVFR/IFR conditions. Local mtn valley fog in the morning. Otherwise, VFR with scattered cumulus over mtns. Surface winds: variable less than 10 kt, except SW-NW 10-20 kt in the Magic Valley. Winds aloft at 10kft MSL: NW 10-20 kt.

KBOI...VFR and mostly clear. Surface winds light and variable, becoming NW 5-10 kt this afternoon.

Weekend Outlook...VFR. Dry with periods of mid-high cloud cover.
Local mtn valley fog Saturday morning. Surface winds S-SE 5-15 kt Saturday increasing to 10-20 kt with gusts 20-30 kt on Sunday.
Strongest winds on Sunday in the Snake Plain east of KBOI.
Variable up to 15 kt overnight Sat/Sun night.

BOI WATCHES/WARNINGS/ADVISORIES
ID...Freeze Warning until 10 AM MDT this morning for IDZ012-014-016.
Freeze Warning from midnight tonight to 10 AM MDT Saturday for IDZ012-014-016.
OR...Freeze Warning until 10 AM MDT /9 AM PDT/ this morning for ORZ064.
Freeze Warning from midnight MDT /11 PM PDT/ tonight to 10 AM MDT /9 AM PDT/ Saturday for ORZ064.