Sunrise 5:17 AM   Sunset 8:09 PM Moonrise 4:50 AM   Moonset 8:13 PM

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FXUS66 KOTX 072257 AFDOTX

Area Forecast Discussion National Weather Service Spokane WA 357 PM PDT Tue May 7 2024

SYNOPSIS
A weak system will bring light rain and cloudy conditions across north Idaho and far eastern Washington on Wednesday as an upper level ridge builds into the region from the west. This will bring warmer and drier weather through the weekend.

DISCUSSION

Tonight and Wednesday: The Low from the past few days is East of the Inland Northwest. It is still bringing some isolated shower activity to extreme Eastern Washington and the Idaho Panhandle through the evening. As the Low slides farther East, it will push a weak band of showers North to South over these areas. Shower activity will diminish over these areas through Wednesday morning. The morning lows will be coldest for the next several days as a warming, dry trend will begin to build into the region.
The lows will be in the 30°s to low 40°s. the highs will be in the upper 50°s and low 70°s.

Thursday through Sunday: The period will be dominated by a ridge off the coast. The ensembles are good agreement of dry, warming trend through the weekend. Each Day will be a few degrees warmer than the previous before peaking over the weekend. Temperatures are expected to average 10-15° warmer than normal by the weekend.
The region can expect widespread 80° temperatures by the weekend.
The Central Basin could see some locations reach into the low 90°s. Overnight lows will be in the upper 40°s and 50°s.

Monday and Tuesday: The ridge pattern begins to flatten late Sunday breaking the warming trend from the weekend. The ensembles are not showing much in the way of precip. There are a couple of weak shortwaves that slide through Southern BC. These could produce light shower activity along the border. Temperatures will trend to season normals for this time of year. Highs will be in the upper 60°s to 70°s. Lows will be in the 40°s to low 50°s. /JDC

AVIATION
00Z TAFS: As the Low continues to exit the Pacific Northwest, stratus will clear over the Idaho Panhandle and the Palouse region. These locations can expect brief periods of MVFR ceilings including KPUW and KCOE. Wind will be gusty through the day with gusts between 20-30 kts across much of the exposed areas of the basin. Diurnally driven showers are expected Tuesday afternoon and isolated to scattered in coverage from KLWS to KCQV and points eastward. Showers will be weaker compared to yesterday, with a less than 10% chance for thunder.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: There is high confidence stratus for far eastern Washington and north Idaho will clear out by the late morning as dry, westerly winds continue across the region. There is high confidence for VFR conditions for the TAF period.

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Confidence descriptors: Low - Less than a 30 percent chance Moderate - 30 to 70 percent chance High - Greater than a 70 percent chance

For additional probabilistic information for NWS Spokane airports, please refer to the Aviation Dashboard on our webpage: https:// www.weather.gov/otx/avndashboard

PRELIMINARY POINT TEMPS/POPS
Spokane 39 65 41 75 47 79 / 0 10 0 0 0 0 Coeur d'Alene 39 62 42 73 47 78 / 10 10 0 0 0 0 Pullman 36 58 39 71 46 76 / 0 10 0 0 0 0 Lewiston 44 63 44 77 50 83 / 0 10 0 0 0 0 Colville 36 69 37 77 43 82 / 0 0 0 0 0 0 Sandpoint 41 62 41 73 46 78 / 10 20 0 0 0 0 Kellogg 40 57 42 72 48 77 / 20 30 0 0 0 0 Moses Lake 38 72 42 80 48 86 / 0 0 0 0 0 0 Wenatchee 40 71 48 78 54 84 / 0 0 0 0 0 0 Omak 38 74 45 82 51 86 / 0 0 0 0 0 0

OTX WATCHES/WARNINGS/ADVISORIES
ID...None.
WA...None.

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