Updated: 2:45 PM PDT on July 6, 2015
Mostly clear. Lows in the mid to upper 50s.
Partly cloudy in the morning...becoming mostly cloudy. Scattered rain showers through the day. Isolated thunderstorms in the afternoon. Highs in the upper 80s to lower 90s. Chance of precipitation 50 percent. Rainfall amounts less than a tenth of an inch...except higher amounts possible in thunderstorms.
Partly cloudy. A chance of thunderstorms in the evening. A chance of rain showers through the night. Lows in the mid to upper 50s. Chance of precipitation 40 percent. Rainfall amounts less than a tenth of an inch...except higher amounts possible in thunderstorms.
Sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs in the lower 90s.
Clear. Lows in the mid to upper 50s.
Partly cloudy. A 20 percent chance of showers and thunderstorms. Highs in the lower to mid 90s. Lows in the lower to mid 60s.
Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs in the mid 80s to lower 90s. Lows in the mid 50s to lower 60s.
... Fire Weather Watch in effect from Tuesday afternoon through
Tuesday evening for thunderstorms for the north
Cascades... Okanogan Highlands... northeast Washington and the
northern Idaho Panhandle...
The National Weather Service in Spokane has issued a Fire Weather
Watch for thunderstorms... which is in effect from Tuesday
afternoon through Tuesday evening.
* Affected area: fire weather zone 101 northern and central
Idaho Panhandle (zone 101)... fire weather zone 685 East
Washington north Cascades (zone 685)... fire weather zone 686
East Washington northeast (zone 686) and fire weather zone 687
East Washington Okanogan Highlands (zone 687).
* Thunderstorms: storms will develop over the mountains near the
Canadian border midday Tuesday and then move to the south during
the afternoon... into the northern basin by late afternoon.
* Outflow winds: gusty winds are possible with these storms.
* Impacts: lightning in combination with dry fuels could result in
additional wild fire starts.
A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
red flag warnings.
Personal Weather Stations [Add your weather station!]
Location: MesoWest, Mullan, ID
Updated: 12:00 PM PDT
|Temperature: 77 °F||Dew Point: -||Humidity: -||Wind: Calm||Pressure: -||Hourly Precipitation: 0.00 in||Heat Index: 75 °F||Graphs|
Location: Diamond Street, Kellogg, ID
Updated: 3:05 PM PDT
|Temperature: 90.9 °F||Dew Point: 40 °F||Humidity: 17%||Wind: WSW at 4.0 mph||Pressure: 29.84 in||Hourly Precipitation: 0.00 in||Heat Index: 87 °F||Graphs|
Location: MesoWest, Wallace, ID
Updated: 2:00 PM PDT
|Temperature: 75 °F||Dew Point: -||Humidity: -||Wind: Calm||Pressure: -||Hourly Precipitation: 0.00 in||Heat Index: 73 °F||Graphs|
MSN Maps of:
|Temp:||Dew Point:||Humidity||Wind||Pressure||Hr Precip||-|
Area forecast discussion National Weather Service Spokane Washington 257 PM PDT Monday Jul 6 2015 Synopsis.... after a warm and dry conditions, another weather system drops in from Canada late tonight and Tuesday, with a threat of showers and thunderstorms. The most widespread thunderstorms are expected to occur over the northeast corner of Washington as well as over the northern Idaho Panhandle. Drier conditions return around mid-week, before additional shower and thunderstorm chances return toward Friday into next weekend. The weather pattern at the end of the week will bring cooler temperatures to the region. && Discussion... Tonight through Tuesday night....the weather during this period will revolve around a shortwave trough currently dropping southeast through southern British Columbia. This feature is expected to drop toward NE corner of Washington and the northern tip of the Idaho Panhandle overnight. As it does we expect to see increasing amounts of mid level moisture and instability track into that area. Model soundings in the vicinity of this feature suggest we will see some of this instability and moisture develop into showers late tonight and persist into Tuesday morning. The soundings also suggest a very small chance for a few lightning strikes due to elevated instability near the Canadian border toward morning but the threat isn't great enough to place in the forecasts at this time. A much better threat of showers and thunderstorms will arrive during the afternoon and evening hours as a more robust upper level shortwave tracks south across the Canadian border. This shortwave will lower temperatures in the upper atmosphere while warming and moistening the lower atmosphere, a prime recipe for thunderstorms provided sufficient lifting. And it looks like this shortwave will provide the necessary lift. So the pieces are in place for a decent thunderstorm event. Most of them will likely occur over NE Washington and north Idaho based on the best potential instability combined with the best upper level forcing from the positioning of the jet stream. However the threat will likely extend west toward the Cascades as well. Looks like most of the thunderstorms will initiate by early afternoon near the Canadian border and spread south through the evening. Based on wind profiles and instability parameters we don't expect to see any strong thunderstorms however based on elevated cloud bases and rather dry conditions below there will be a chance of some moderate thunderstorm outflow winds. Also based on the dry sub-cloud layer we don't expect to see widespread heavy rains, however most of the storms will produce some rainfall. The other threat will be for new fire starts based on the extremely dry fuels. The question is how much lightning will we see. Based on the instability parameters it looks like most will occur over extreme NE Washington and the northern Idaho Panhandle. The Fire Weather Watch still seems like a good call, however in an effort to coordinate with neighboring offices will leave the watch going rather than upgrading to a red flag warning. The threat of thunder should Ware rapidly overnight as the shortwave begins to shear and stretch as it moves toward the Washington/Oregon border. Fx. Wednesday through monday: after a relative lull, the active pattern continues with the return of the threat of showers and thunderstorms. Temperatures will remain above normal much of the period, but look for a relative cool-down toward the weekend. And beyond next Monday models suggest perhaps a return to more seasonal temperatures. First on Wednesday a front stalls over the southern Idaho Panhandle and northeast or. Behind it is drier air and broader subsidence. So for the most part the region will be dry. Yet there will be a small risk of showers or T-storms along that boundary during the afternoon near The Blues, Camas Prairie and far southeast Shoshone County. There is the off-chance for shower showers near the Cascades of Chelan County in the northeast flow, but confidence is rather low and there is not real mention of it other than here. Secondly on Thursday low pressure off the California coast moves toward the western Great Basin. So the flow over our area turns east- southeast, the stalled front edges north and some weak mid-level disturbances lift in. And some moisture starts to expand north. So look for a better threat of showers and thunderstorms over the southeast County Warning Area and near the Cascades. Clouds will begin to increase elsewhere. Thirdly from Friday through Monday the pattern changes. The former California low stretches toward the High Plains and a trough deepening in the Pacific approaches the coast. The flow turns southwest and a better fetch of moisture rides in, with pwats rising to an inch or so. Systems passing in this pattern will have increased instability and the aforementioned moisture to bring the increasing threat of showers and thunderstorms across the region. Models are not in the best agreement regarding the timing the individual shortwaves that will bring in these precipitation chances. At this time models suggest a boundary passing Friday or Friday night and then a shortwave riding in on a modest jet streak Sunday appear to be the catalyst. In general look for the best threat of showers and thunderstorms each day around the mountain zones, especially in the afternoon and evening hours. As for the valley and basin zones loose agreement suggests Friday/Friday night and Sunday may be the periods with a better threat of showers and thunderstorms with the passage of the aforementioned features. As said, there is some disagreement on timing so stay tuned as things come into better focus. Regardless of timing, given the amount of moisture and the potential instability models depict at this point i'd be hard- pressed to say that there will be no chance in the valley/basin areas. With the increasing moisture during this time it is expected the showers and thunderstorms will be wetter. So while there will still be some concern for wildfire ignitions from any lightning, the overall threat appears smaller compared to the current pattern. Another issue we will monitor is the potential for localized flooding, especially around any burn scars from last years or even this years newer wildfires. This will be due to the potential for wetter and potentially slower-moving or training storms. /J. Cote' && Aviation... 18z tafs: VFR conditions expected through this forecast period. The main weather of consequence will be the approach of a weak upper level disturbance moving southeast through British Columbia. This will gradually increase the clouds overnight and into Tue morning. It could also bring a few showers to extreme NE Washington and north Idaho after 08z. Wildfire smoke could also pose some restricted visibilities issues overnight and early Tuesday. Fx && Preliminary point temps/pops... Spokane 66 91 65 93 66 96 / 0 20 20 10 10 10 Coeur D'Alene 60 89 61 91 61 95 / 10 50 20 10 10 10 Pullman 57 90 57 91 57 94 / 0 10 10 10 10 10 Lewiston 66 98 68 99 69 100 / 0 10 10 10 10 10 Colville 63 91 60 97 61 100 / 10 50 30 10 0 10 Sandpoint 55 84 55 90 54 94 / 20 50 40 10 10 10 Kellogg 58 87 56 90 57 93 / 0 40 30 10 10 20 Moses Lake 65 100 69 100 67 102 / 0 0 10 10 0 10 Wenatchee 69 99 72 101 73 102 / 0 10 10 10 0 10 Omak 65 98 65 100 67 102 / 10 10 10 10 0 10 && Otx watches/warnings/advisories... Idaho...Fire Weather Watch from Tuesday afternoon through Tuesday evening for northern and central Idaho Panhandle (zone 101). Washington...Fire Weather Watch from Tuesday afternoon through Tuesday evening for East Washington north Cascades (zone 685)-East Washington northeast (zone 686)-East Washington Okanogan Highlands (zone 687). && $$