A system brought enough instability to produce scattered showers across the region. A weak funnel cloud from one of the showers was reported to have occur over Kootenai County.
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The episode as NWS OTX wrote it up.
A system brought enough instability to produce scattered showers across the region. A weak funnel cloud from one of the showers was reported to have occur over Kootenai County.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Spokane, WA wrote its last area forecast discussion before the first event at Apr 1, 3:32 AM PST, 6 hours 3 minutes earlier.
Area Forecast Discussion National Weather Service Spokane WA 432 AM PDT Tue Apr 1 2025 .SYNOPSIS... Light showers and mountain snow expected through Today. A Cool and unsettled weather pattern will persist through much of the week with a warming and drying trend by the weekend. && .DISCUSSION... Today and Wednesday: Currently, a Low is positioned over Central Washington and slowly moving East. Bands of showers circling around the center will bring light precip to portions of the Inland Northwest through Tuesday morning. The colder air has ushered in lower snow levels. Moisture being pressed into the Cascades will likely fall as snow. Stevens Pass is expected to have an additional 1-3" through the morning. Lookout and Sherman Pass are expected to get up to two inches. With snow levels around 3000ft, these showers could produce a wintry mix in the lowlands but any impactful accumulations are unlikely. Additional precip amounts are expected to be only a few hundredths of an inch. By the afternoon, the low has moved out of the region and drier air is moving into the region as a ridge builds along the coast. With the drier upper level flow pattern Northwest to Southeast, any shower activity will slowly diminish across the region by Tuesday night. Wednesday will be fairly quiet to start. A shortwave will drop down from a Low over Central Canada. It will bring an increase in precip chances for the mainly the higher terrains fro Wednesday afternoon. There is not a significant amount of moisture associated with the wave. Highs will be in the upper 40s and 50s. Lows will be in the 30s. /JDC Thursday: Ensemble models are in agreement that the trough remains across the western US as the ridge nudges closer to the coast. Another day of afternoon showers across extreme eastern WA and the ID Panhandle. The deterministic models are showing some instability in the afternoon as the final weather disturbances move down the backside of the the trough in the northerly flow. Have added a 15% chance of thunderstorms from Spokane east to the ID/MT border and south down across the Palouse, Blue Mountains and Camas Prairie areas. One last day of near of slightly below average temperatures...which is highs in the upper 40s to mid 50s. Friday through Sunday: Ensembles models are in agreement that the ridge builds in for Friday through the weekend brining warming temperatures and a very pleasant weekend. Daytime temps will be in the 50s Friday and by Sunday widespread 60s with around 70 for parts of the LC Valley and areas south of Moses Lake. Dry air in place and clear to mostly clear skies will allow overnight temps to remain chilly through the weekend. The EC ensemble is still showing drier precipitable water values than the GFS ensemble, which could impact low temps, as well as relative humidity values for any prescribed burns planned. Monday and Tuesday: The ensembles are in good agreement of the ridge being transient and moving east Monday, but they differ in how much influence a trough trying to approach the west coast will have. Currently 50-60% of the guidance suggest precipitation moving east of the Cascades. Have daytime temps cooling a few degrees given the increase in cloud cover and potential for light rain. Overnight temps will be above average given the cloud cover. Snow levels start out high at 5-6k ft, so expecting a rain and high mountain snow event. /Nisbet && .AVIATION... 12Z TAFS: Bands of showers are wrapping around a Low over Central Washington. Showers will continue over the Columbia Basin through Tuesday AM impacting TAF sites through 15Z. Then the heating of the day will bring a threat of isolated to scattered showers Tuesday PM. Any heavier showers could result in precipitation turning to snow or at least a rain/snow mix. MVFR stratus deck over eastern WA and north ID is expected through the morning, with a some risk for IFR conditions developing. GEG/SFF/COE have the best chances of MVFR. The stratus deck will lift through the day and TAF sites can expect VFR conditons through the rest of the period. FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: Moderate uncertainty for CIGS in eastern WA and north ID. Moderate confidence in MVFR conditions toward Tuesday AM near GEG/SFF/COE. Low confidence in MVFR conditions at other TAF sites. Low confidence in IFR conditions at GEG/SFF/COE. Low confidence on showers impacting TAF sites. ----------------------- Confidence descriptors: Low - Less than a 30 percent chance Moderate - 30 to 70 percent chance High - Greater than a 70 percent chance && .PRELIMINARY POINT TEMPS/POPS... Spokane 49 34 51 34 52 30 / 30 10 20 20 60 10 Coeur d'Alene 48 34 49 33 50 27 / 40 10 40 30 70 10 Pullman 46 33 48 31 49 30 / 20 10 30 10 60 20 Lewiston 53 38 54 37 55 34 / 20 10 20 10 30 10 Colville 50 31 51 31 53 27 / 30 10 40 30 50 10 Sandpoint 46 34 46 33 47 27 / 40 20 70 60 80 20 Kellogg 43 36 44 34 44 27 / 50 20 70 30 80 30 Moses Lake 58 32 58 34 58 34 / 30 10 0 0 10 0 Wenatchee 56 35 56 35 57 35 / 20 0 0 0 10 0 Omak 56 34 57 33 59 31 / 20 20 10 10 10 0 && .OTX WATCHES/WARNINGS/ADVISORIES... ID...None. WA...None. &&
The Spokane radar (KOTX), 55 km away, was scanning. The volume nearest the first event began at 17:31 UTC.
1 funnel cloud. Local standard time, as filed.
Storm spotter KO160 witnessed a cold air funnel from the intersection of Hanley Rd and North Atlas Road. Funnel cloud looks to have formed from a shower southwest of the intersection based on available radar data. No Damage was reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
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NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1257574.