Yakima Valley/Central Basin Forecast

Date Issued: 2022-05-27 17:32:08 (viewed 27 times)

Discussion:

.SHORT TERM…
SW flow will be over the region tonight with shower activity briefly trending dry with some isolated showers beginning to move in again around sunrise. SW winds will trend lighter tonight becoming calm to light near sunrise. Dew points are progged to be in the mid 30s under mostly cloudy skies. Temps aloft will be cooler with potential overnight lows based on temps aloft alone in the low 30s. Active weather will keep most observed lows in the low to mid 40s.

An upper trough will continue to dig over the PNW as an upper low moves into the region. Scattered to isolated rain showers will move in from the W/SW. Shower activity will trend drier overnight but some isolated showers will remain in the forecast thru the night. 24 hour precip totals for Saturday look to be 0.10” or less. Winds will be mostly variable and light, becoming a bit breezier near sunrise as the upper low encroaches, tightening gradients. Dew points are progged to be in the mid 30s under mostly cloudy skies with mid and high level cloud decks. Temps aloft will be cooler with potential overnight lows in the low 30s. Active weather and mostly cloudy skies will keep overnight lows mostly in the low to mid 40s.

.3-5 DAY…
A robust upper trof will continue to amplify over the western U.S. with an upper low driving the weather across Washington. This will essentially keep on and off scattered to isolated rain showers in the forecast Sunday and Monday. There may be some increase in shower activity during the afternoon as chances for convective showers increase. Rain totals for the two days looks to be around 0.10” or less for the districts. Winds will be W/NW and breezy to windy Sunday with gusts around 30-35 mph. Winds will be generally light Monday. A transient ridge will pass thru the region Tuesday with mostly dry and fair weather expected. Sunday will be the final cool day with a warming trend to begin Monday. Even with cool temps aloft Sunday night frost risk looks minimal with most residing in the low to mid 40s.

Yakima Valley:

- The 5 pm PST 3560 foot wind at Rattlesnake Ridge was SW at 21 mph, gusting to 28 mph.

- The 5 pm PST temperature at Yakima Airport was 64 degrees with a dew point of 39 degrees.

- The 5 pm PST temperature at Sunnyside Airport was 62 degrees with a dew point of 43 degrees.

Tonight

Weather: Isolated rain showers. Mostly cloudy.
Wind: SW and trending calm to light.
Min Temp: Low to mid 40s
Protection: Shouldn’t be needed
Ceiling or Inversion: Cigs 12000ft AGL. Weak inversion.

Saturday and Saturday Night

Weather: Scattered to isolated rain showers. Mostly cloudy.
Wind: VAR and light, becoming breezier near sunrise.
Max Temp: Mid 60s
Min Temp: Low to mid 40s.
Protection: Shouldn’t be needed

Further Outlook
Sunday and Sunday Night

Weather: Scattered to isolated rain showers. Mostly cloudy.
Wind: W/NW breezy to windy, trending calm to light overnight.
Max Temp: Mid 60s
Min Temp: Mostly low to mid 40s
Protection: Shouldn’t be needed

Monday and Monday Night

Weather: Scattered to isolated rain showers. Partly to mostly cloudy.
Wind: NW and light, calm to light overnight
Max Temp: Upper 60s
Min Temp: Mostly low to mid 40s
Protection: Shouldn’t be needed

Tuesday and Tuesday Night

Weather: Dry. Mostly sunny to partly cloudy.
Wind: NE/VAR calm to light.
Max Temp: Upper 70s
Min Temp: Mostly upper 40s
Protection: Shouldn’t be needed

Key Station Forecasts for night of 2022-05-28
Yakima AirportAFSummitview Ext. (CW)AF
CowicheAFE.Tieton (CW)AF
Naches Hghts (CW)AFNachesAF
Gleed.NE (CW Gleed)AFSelah-Speyers (CW)AF
PomonaAFMoxee.N (CW Moxee)AF
N.Wapato (CW)AFW.Wapato (CW)AF
Wapato.SEAFBuenaAF
Cherry HillAFSunnyside AirportAF
GrandviewAFProsser.NAF
Whitstran (CW)AFBenton CityAF
E.Kennewick (CW)AF100 CirclesAF
All Stations are AgWeatherNet Stations
(CW) = Indicates an Absorbed Clearwest Station
(CW XXX) = Indicates an Absorbed Clearwest Station and Original Name of Clearwest Station
SAF = slightly above 32 (33 or 34); AF = above 32 (35 or higher)

Central Basin:

- The 5 pm PST temperature at Pasco Airport was 70 degrees with a dew point of 43 degrees.

- The 5 pm PST temperature at Moses Lake Airport was 64 degrees with a dew point of 37 degrees.

Tonight

Weather: Isolated rain showers. Mostly cloudy.
Wind: SW and trending calm to light.
Min Temp: Low to mid 40s
Protection: Shouldn’t be needed
Ceiling or Inversion: Cigs 15000ft AGL. Weak inversion.

Saturday and Saturday Night

Weather: Scattered to isolated rain showers. Mostly cloudy.
Wind: VAR and light, becoming breezier near sunrise.
Max Temp: Mid 60s
Min Temp: Low to mid 40s.
Protection: Shouldn’t be needed

Further Outlook
Sunday and Sunday Night

Weather: Scattered to isolated rain showers. Mostly cloudy.
Wind: W/NW breezy to windy, trending calm to light overnight.
Max Temp: Upper 60s
Min Temp: Mostly low to mid 40s
Protection: Shouldn’t be needed

Monday and Monday Night

Weather: Scattered to isolated rain showers. Partly to mostly cloudy.
Wind: NW and light, calm to light overnight
Max Temp: Upper 60s
Min Temp: Mostly low to mid 40s
Protection: Shouldn’t be needed

Tuesday and Tuesday Night

Weather: Dry. Mostly sunny to partly cloudy.
Wind: NE/VAR calm to light.
Max Temp: Mid 70s
Min Temp: Mostly upper 40s
Protection: Shouldn’t be needed

Key Station Forecasts for night of 2022-05-28
QuincyAFRadar HillAF
Mattawa.EAFRingoldAF
FrenchmanAFPasco AirportAF
Royal City.EAFFishhookAF
Moses Lake AirportAFGeorge (USBR)AF
All Stations are AgWeatherNet Stations
(CW) = Indicates an Absorbed Clearwest Station
(CW XXX) = Indicates an Absorbed Clearwest Station and Original Name of Clearwest Station
SAF = slightly above 32 (33 or 34); AF = above 32 (35 or higher)
Extended Outlook

Model solutions indicate a potent upper low circulating over the Gulf of Alaska thru the extended period. This will place Washington under warm and moist SW flow. There will likely be an opportunity or two for scattered to isolated rain showers as shortwaves embedded in the mean flow move across the region. Guidance indicates the first opportunity to be in the Thursday night time frame with another possibly again late Sunday with timing likely to be adjusted slightly. Temperatures aloft will be rather warm thru the period with potential overnight lows remaining above freezing. Daytime highs will likely range in the upper 70s to low 80s with overnight lows mostly in the upper 40s to low 50s.

Short: Oswald

3-5: Oswald

Extended: Oswald

Apple Stages

Cherry Stages

Washington State University