Updated: 2:53 PM MDT on August 4, 2015
Partly cloudy with isolated showers and thunderstorms in the evening...then mostly cloudy with scattered showers and isolated thunderstorms after midnight. Chance of precipitation 40 percent. Lows 50 to 63.
Numerous showers and scattered thunderstorms. Chance of precipitation 70 percent. Highs 69 to 81.
Partly cloudy. A 20 percent chance of rain showers and thunderstorms in the evening. Lows 40 to 53.
Sunny. Highs 69 to 80.
Mostly clear. Lows 44 to 54.
Mostly sunny. Highs 74 to 85.
Partly cloudy with a slight chance of showers and thunderstorms in the evening...then mostly cloudy with a chance of showers and a slight chance of thunderstorms after midnight. Chance of precipitation 30 percent. Lows 51 to 60.
Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Chance of precipitation 40 percent. Highs 70 to 81. Lows 46 to 60.
Partly cloudy with a 20 percent chance of rain showers and thunderstorms. Highs 70 to 81.
Partly cloudy. A slight chance of rain showers and thunderstorms in the evening...then a slight chance of rain showers after midnight. Chance of precipitation 20 percent. Lows 46 to 59.
Mostly cloudy. A 20 percent chance of rain showers and thunderstorms. Highs 74 to 84. Lows 46 to 60.
Partly cloudy. A slight chance of rain showers in the morning...then a slight chance of rain showers and thunderstorms in the afternoon. Chance of precipitation 20 percent. Highs 74 to 85.
... Red flag warning for lightning now in effect from 6 am MDT
Wednesday morning to 7 PM MDT Wednesday evening for the northern
Boise blm... western Payette National Forest... Treasure valley
blm... western Twin Falls blm and Vale blm... which are fire weather
zones 400... 401... 420... 424 and 637...
* thunderstorms... isolated coverage overnight... then increasing in
coverage /to scattered/ after sunrise.
* Outflow winds... gusts up to 50 mph are possible.
A red flag warning means that critical fire weather conditions
are either occurring now... or will shortly.
... Record daily maximum rainfall set at Burns Oregon...
A record rainfall of 0.21 inches was set at Burns Oregon
yesterday. This breaks the old record of 0.15 set in 1976.
Personal Weather Stations [Add your weather station!]
Location: ITD, Cascade, ID
Updated: 11:15 PM MDT
|Temperature: 56 °F||Dew Point: 40 °F||Humidity: 54%||Wind: SW at 1 mph||Pressure: -||Hourly Precipitation: 0.00 in||Heat Index: -||Graphs|
Location: Castle Mtn Creeks, Garden Valley, ID
Updated: 12:20 AM MDT
|Temperature: 64.7 °F||Dew Point: 43 °F||Humidity: 45%||Wind: West at 2.0 mph||Pressure: 29.52 in||Hourly Precipitation: 0.00 in||Heat Index: -||Graphs|
Location: Jacobus Ranch, Ola, ID
Updated: 12:20 AM MDT
|Temperature: 71.8 °F||Dew Point: 35 °F||Humidity: 26%||Wind: East at 6.0 mph||Pressure: 29.72 in||Hourly Precipitation: 0.00 in||Heat Index: 76 °F||Graphs|
Location: Railroad Village, Donnelly, ID
Updated: 12:24 AM MDT
|Temperature: 59.7 °F||Dew Point: 3 °F||Humidity: 10%||Wind: NW at 2.3 mph||Pressure: 30.03 in||Hourly Precipitation: 0.00 in||Heat Index: -||Graphs|
Location: Cascade Lake, Donnelly, ID
Updated: 12:24 AM MDT
|Temperature: 58.3 °F||Dew Point: 43 °F||Humidity: 57%||Wind: Calm||Pressure: 27.67 in||Hourly Precipitation: 0.00 in||Heat Index: -||Graphs|
Updated: 12:23 AM MDT
|Temperature: 67.6 °F||Dew Point: 42 °F||Humidity: 40%||Wind: Calm||Pressure: 29.70 in||Hourly Precipitation: 0.00 in||Heat Index: -||Graphs|
Location: Garden Valley, Garden Valley, ID
Updated: 12:16 AM MDT
|Temperature: 58.6 °F||Dew Point: 47 °F||Humidity: 66%||Wind: Calm||Pressure: 26.68 in||Hourly Precipitation: 0.00 in||Heat Index: -||Graphs|
Location: Ola Valley, Idaho, Ola, ID
Updated: 12:24 AM MDT
|Temperature: 65.0 °F||Dew Point: 47 °F||Humidity: 52%||Wind: Calm||Pressure: 29.72 in||Hourly Precipitation: 0.00 in||Heat Index: -||Graphs|
MSN Maps of:
|Temp:||Dew Point:||Humidity||Wind||Pressure||Hr Precip||-|
Area forecast discussion National Weather Service Boise Idaho 941 PM MDT Tuesday Aug 4 2015 Discussion...shower and thunderstorm activity which initiated over far southeast Oregon and the in/Nevada border is decreasing in coverage with sunset. Watching a second area of lighter shower activity over northern Nevada which is associated with an upper low circulation in northern California. Showers will develop across southeast Oregon and SW Idaho as the low center tracks to the NE overnight. Evening weather balloon from kboi showing elevated instability which would support potential for nocturnal thunderstorms given forcing from the upper low. However...confidence on coverage and strength of deeper convection that develops remains low. Newest model guidance hasn/T changed much with overnight forecast so will not update at this time. && Aviation...VFR with increasing middle and high level clouds. Isolated showers and thunderstorms this evening mainly north of a kboi-ktwf line. After 05z scattered showers and isolated thunderstorms will spread over the entire forecast area and remain over the region through the night. Surface winds generally 10 knots or less...with gusty winds to near 30 knots near thunderstorms. Winds aloft westerly 10-15 knots up through 10k feet mean sea level. && Previous discussion... short term...tonight through Thursday...an upper level wave that was moving northeast across northern California this afternoon will continue into southeast Oregon and SW Idaho overnight and Wednesday. This will bring a chance for showers and thunderstorms to the area overnight...which is relatively unusual...and which would make two nights in a row for many folks in the Boise area. These showers and storms will move east tomorrow...resulting in decreasing probability of precipitation in southeast Oregon through the day. As the system exits SW Idaho in the evening... probability of precipitation will rapidly decrease Wednesday night across the remainder of the area. Relatively dry zonal flow will come in Thursday...bringing a dry and mostly clear day. Temperatures will be 5 to 10 degrees below normal both Wednesday and Thursday...with overnight lows dropping considerably from tonight to Wednesday night. Tonight...with clouds around...lows will be around 5 degrees above normal. Wednesday night...with dry air and clear skies...expect lows around 5 degrees below normal. Winds near showers and storms today and tomorrow could gust 35 to 45 miles per hour...and brief heavy downpours will accompany the stronger storms. Lightning is always a hazard with thunderstorms... regardless of the intensity of rain...hail...or wind. Long term...Thursday night through Tuesday...upper low off of the California coast will begin moving inland Thursday night into Friday morning. By Friday afternoon...showers and thunderstorms are expected to develop along the Idaho/Nevada border...and spread through the rest of the County Warning Area by Saturday morning. By Saturday afternoon...the low will have weakened and been partial absorbed into the westerly flow associated with a larger upper low off of the British Columbia coast. Nonetheless...the trough axis will have shifted east by this time so most convection is expected to be confined to the eastern most portions of the County Warning Area...especially the Idaho central mountains. Convective parameters do not look impressive Saturday afternoon...so surface heating and orographic lifting will be the main forcing mechanism. By Sunday...upper low off of the British Columbia coast will slowly drift southward and the area will transition into a southwest flow with some moisture transport to support some thunderstorms Sunday afternoon in the northern mountains. Southwesterly flow Monday and Tuesday will lead to an upper level low moving in from off the Washington coast by Wednesday. Disagreement in timing of the next system leading to low confidence in timing of any precipitation. Left probability of precipitation to model consensus and climatology for now. Temperatures linger right around normal. && Boi watches/warnings/advisories... Idaho...red flag warning from 6 am to 7 PM MDT Wednesday idz400-401-420-424. Red flag warning until 7 PM MDT Wednesday idz423-426. Or...red flag warning from 6 am to 7 PM MDT Wednesday orz637. && $$ Weather.Gov/Boise Discussion...dg aviation.....Ja previous short term...snow pellets previous long term....ep/jc