Marine Weather and Tide Forecast for Hailey, ID

SHORT TERM /THROUGH THURSDAY NIGHT/
Issued at 108 AM MDT Wed Apr 23 2025

Looking at unsettled conditions over the next couple days as a weak low pressure system rolls into east Idaho. The upper level dynamics with this system is pour, so most of the convection is a combination of daytime heating and terrain interaction. As a result, best chances for activity are across the central mountains and southeast highlands. In terms of thunderstorms, the southeast highlands have the best chances where temperatures are a little warmer and jet dynamics are a touch more favorable. The central mountains are just a little too stacked underneath the upper low. The average precipitation across the eastern/southeastern highlands is around 0.25 inch through 12z Friday, and 0.10 inches or less elsewhere.
There is less than a 10% chance that the eastern highlands see more than 0.50 inch of rain through 12z Friday. Temperatures through the short term are somewhat mild, generally running about 5 degrees above average.

LONG TERM /FRIDAY THROUGH TUESDAY/
Issued at 108 AM MDT Wed Apr 23 2025

The next upper low will reach the West coast on Friday before shifting inland on Saturday. 500 mb ensemble clusters suggest greater agreement amongst models regarding the track of the low, with the center of it moving through CA and into the Great Basin. As this system progresses eastward, portions of Southeast Idaho will see isolated to scattered showers and thunderstorms daily. Greater consensus in the track of the low has resulted in an increase in the QPF forecast Sunday into Monday, especially in upslope regions of the east and southeast mountains. The current QPF forecast for these areas is 0.30" to 0.75" for the aforementioned timeframe, which will be the wettest period of the long-term period. Daily highs will drop over ten degrees behind this system, with 50s in the lower elevations, 30s in the mountains, and 40s in mountain valleys. Lower snow levels will result in light snow possible above 6,000 feet late weekend/early next week. Come next Tuesday, clusters show varying strengths of high pressure building in behind the departing trough.
Temperatures will begin to rebound and increase back into above normal territory, with widespread highs in the mid- to upper 60s across our lower elevations by next Tuesday/Wednesday.

AVIATION /06Z TAFS THROUGH 06Z THURSDAY/
Issued at 1009 PM MDT Tue Apr 22 2025

Main impact will be weak upper level Pacific trof pushing east Wednesday. Will see mid and high clouds continue to increase and have vicinity thunderstorms at SUN and DIJ after 18Z. Only have vicinity showers at PIH and IDA with ceilings staying around 10 thousand feet or slightly below at all sites. Have predominant showers at DIJ after 00Z as moisture lingers in east longest.
Not confident any other locations to have continual precipiation.

PIH WATCHES/WARNINGS/ADVISORIES
None.