textproduct: Seattle/Tacoma
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
UPDATE
Clear skies over a majority of the area this morning. Some patchy fog hanging on over the Southwest Interior and north of the San Juans will dissipate by noon. Nothing new in the first look at the 12z model run with the high amplitude upper level ridge offshore and dry northerly flow aloft over the area the next few days. No updates this morning. Felton
SYNOPSIS
A strong and stable ridge will remain in place through the middle of next week.
SHORT TERM /TODAY THROUGH MONDAY/
Strong high pressure remains in place leading to ongoing dry and stable weather conditions. Less clouds this morning with cooler temps in the 30s. Expect highs around 50. We'll see similar conditions through Monday. 33
LONG TERM /MONDAY NIGHT THROUGH FRIDAY/
High pressure keeps western WA dry through at least Wednesday (and possibly Thursday). Rain/snow chances increase toward Friday and the weekend as weak disturbances pass through in NW flow. The air mass will be cooler with lower snow levels. Probabilities of lowland snow (1" or greater) are less than 10%. 33
AVIATION
Clear skies early this morning at the majority of the terminals. Only a few patches of fog across the terminals this morning (primarily affecting KOLM to KCLS and portions of the north interior around KAWO) - expect a mix-out later this morning into the early afternoon. The VFR conditions will persist through the day with light N/NE winds 5-10 kt. There is a 20% chance of IFR/LIFR conditions possible Saturday night, especially with lighter winds and another inversion with light flow aloft playing part to the risk.
KSEA...Patchy vicinity fog remains a no-factor for visibilities at the terminal, and will burn off quick this morning with clear skies rest of the day. N/NE winds 5-10 kt. Another low chance of IFR/LIFR (20%) exists for Sunday morning with winds/gradients becoming lighter tonight. Probabilities are higher however to the north and south of the terminal as of update.
29/HPR
MARINE
High pressure and generally light offshore winds through the weekend and early next week. 33
HYDROLOGY
No river flooding is expected over the next 7 days.
SEW WATCHES/WARNINGS/ADVISORIES
WA...None. PZ...None.
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