National Weather Service United States Department of Commerce

Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. 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


016
FTUS46 KSEW 062002 AAA
TAFSEA
TAF AMD
KSEA 062002Z 0620/0724 36007G18KT P6SM SCT150
FM062300 31009KT P6SM SKC
FM070300 VRB05KT P6SM SCT250
FM070600 19005KT P6SM SCT250
FM071300 19007KT P6SM BKN025 OVC040
FM071700 19006KT P6SM OVC025=
 
 

244
FTUS46 KSEW 062003 AAA
TAFBFI
TAF AMD
KBFI 062003Z 0620/0718 34007G15KT P6SM SCT250
FM070000 30010KT P6SM SCT250
FM070400 15003KT P6SM SCT250
FM071200 16005KT P6SM BKN025 OVC050=
 
 
   

765
FTUS46 KSEW 061720
TAFPAE
TAF
KPAE 061720Z 0618/0718 35006KT P6SM FEW250
FM061900 33006KT P6SM FEW250
FM070200 VRB03KT P6SM FEW250
FM070900 14004KT P6SM OVC040
FM071300 13005KT P6SM BKN015 OVC030=