National Weather Service United States Department of Commerce

Moke Impacts Hawaii; Severe Thunderstorms and Heavy Rainfall from the Great Basin to the Plains

Heavy rain from Tropical Storm Moke will begin to impact the Big Island today, risking life-threatening flooding and mudslides in windward and southeast areas. Severe thunderstorms are expected across the northern Rockies/Plains and northern Great Basin. Repeated storms and heavy rainfall may cause flash flooding from the Plains into the Lower MS Valley. Dangerous heat persists across the South. Read More >

A Puget Sound Convergence Zone (PSCZ) forms when strong westerly winds flow around the Olympic Peninsula and converge over Puget Sound. It generally forms north of Seattle, and may move southward to as far as Boeing Field or SeaTac Airport. A PSCZ can cause a narrow band of convective precipitation along it, which can include rain showers, thunderstorms, or snowfall. Strong south to southwest winds are to the south of the PSCZ and north to northwest winds to the north. More model information for the winds around SeaTac can be found on the SeaTac Wind Page .





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Wind Barbs, PIREPs, Radar, 10nm Range Rings, all sites except CWOP


371
FTUS46 KSEW 232100 AAA
TAFSEA
TAF AMD
KSEA 232100Z 2321/2424 23006KT P6SM BKN050 BKN090
FM240000 35007KT P6SM SCT050
FM240600 02008KT P6SM SCT250
FM241800 35010KT P6SM FEW250=
 
 

551
FTUS46 KSEW 231914 AAA
TAFBFI
TAF AMD
KBFI 231914Z 2319/2418 25006KT P6SM SCT020 BKN040
TEMPO 2319/2321 BKN020
FM232100 26005KT P6SM BKN050
FM240000 32006KT P6SM SCT050
FM240600 VRB03KT P6SM SCT250=
 
 
   

928
FTUS46 KSEW 232125 AAA
TAFPAE
TAF AMD
KPAE 232125Z 2321/2418 32005KT P6SM SCT025 BKN045
TEMPO 2321/2323 BKN025
FM232300 33007KT P6SM SCT050
FM240500 35006KT P6SM SCT250
FM241200 35005KT 6SM BR SCT004=