Marine Weather and Tide Forecast for Oakesdale, WA

SYNOPSIS
Cooler and wetter weather pattern sticks around into early next week with several opportunities for showers and afternoon thunderstorms.

DISCUSSION
Monday through Wednesday: A cool and showery pattern will persist through at least the first half of the week as we remain under a cold upper level trough. Conditions Monday and Tuesday will be similar to those on Sunday with steep lapse rates and CAPE values of 200 to 500 J/kg bringing convective showers and chances for thunderstorms across much of the region. Areas with the highest chances for thunderstorms Monday include the eastern third of WA and the ID panhandle. By Tuesday, thunderstorm chances will mainly be confined to the higher terrain of northeast WA from the Okanogan Valley eastward to the WA/ID border. Wednesday will feature another round of afternoon showers focused over the Cascade Crest, Northeast WA, and the ID Panhandle, though the trough and associated instability will have shifted south of our region, lessening chances for thunderstorms.

Thursday through Sunday: Models are coming into better agreement on a ridge of high pressure briefly building in on Thursday, bringing a break from the showers. The break looks to be short-lived though, as an unsettled troughing pattern will return Friday bringing more chances for showers and afternoon thunderstorms. Overall, conditions will stay cool through the forecast period with afternoon instability bringing showers and thunderstorms typical for this time of year. /Fewkes

AVIATION
12Z TAFS: MVFR to IFR cloud ceilings have developed over several TAF sites including GEG and SFF. A very localized area of LIFR ceilings and visibilities has developed over LWS.
Ceilings and visibilities are expected to improve rapidly after sunrise. Additional showers will develop through the day today, first in the southeast (PUW/LWS) and expanding into the Spokane/C'dA area in the afternoon. Some isolated t-storms are possible.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: Low confidence in thunderstorms at GEG/SFF/COE/PUW/LWS.

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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 43 61 44 64 42 64 / 20 40 10 10 10 0 Coeur d'Alene 42 58 43 60 42 62 / 40 40 20 30 20 10 Pullman 39 55 41 59 40 61 / 30 30 10 20 0 0 Lewiston 46 63 47 67 45 68 / 40 30 10 20 0 0 Colville 38 64 40 66 37 66 / 40 60 40 30 20 10 Sandpoint 42 58 44 55 42 60 / 40 70 30 60 40 20 Kellogg 44 54 45 54 44 59 / 40 60 20 60 20 20 Moses Lake 46 70 43 72 41 70 / 20 20 10 0 0 0 Wenatchee 49 71 48 69 45 70 / 30 10 0 0 0 0 Omak 45 69 44 66 42 67 / 30 20 20 0 0 0

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