Mastodawn

#SEW #WAwx 319
WGUS86 KSEW 190309
FLSSEW

Flood Statement
National Weather Service Seattle WA
809 PM PDT Wed Mar 18 2026

...The Flood Warning continues for the following rivers in
Washington...

Snoqualmie River Near Carnation affecting King County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive
cars through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur i https://mesonet.agron.iastate.edu/vtec/f/2026-O-EXT-KSEW-FL-W-0015_2026-03-19T03:09Z

KSEW Flood Warning #15

King

Iowa Environmental Mesonet

IEMbot SEW 4h ago

#SEW #WAwx 705
WGUS86 KSEW 190259
FLSSEW

Flood Statement
National Weather Service Seattle WA
759 PM PDT Wed Mar 18 2026

...The Flood Warning is extended for the following rivers in
Washington...

Tolt River Above Carnation affecting King County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive
cars through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in v https://mesonet.agron.iastate.edu/vtec/f/2026-O-EXT-KSEW-FL-W-0017_2026-03-19T02:59Z

KSEW Flood Warning #17

King

Iowa Environmental Mesonet

IEMbot SEW 4h ago

#SEW #WAwx 294
WGUS86 KSEW 190253
FLSSEW

Flood Statement
National Weather Service Seattle WA
753 PM PDT Wed Mar 18 2026

...The Flood Warning continues for the following rivers in
Washington...

Snohomish River Near Monroe affecting Snohomish County.

.Heavy rain over the Central Cascades combined with high snow levels
will push the Snohomish River near Monroe above flood stage this
evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to https://mesonet.agron.iastate.edu/vtec/f/2026-O-EXT-KSEW-FL-W-0020_2026-03-19T02:53Z

KSEW Flood Warning #20

Snohomish

Iowa Environmental Mesonet

IEMbot SEW 4h ago

#SEW #WAwx 019
WGUS86 KSEW 190247
FLSSEW

Flood Statement
National Weather Service Seattle WA
747 PM PDT Wed Mar 18 2026

...The Flood Warning is extended for the following rivers in
Washington...

Snoqualmie River Near Snoqualmie Falls affecting King County.

.Moderate to heavy rain continues over the Central Cascades. River
flooding will continue on the Snoqualmie River near Snoqualmie Falls
into tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should https://mesonet.agron.iastate.edu/vtec/f/2026-O-EXT-KSEW-FL-W-0016_2026-03-19T02:47Z

KSEW Flood Warning #16

King

Iowa Environmental Mesonet

IEMbot SEW 4h ago

#SEW #WAwx 312
FXUS66 KSEW 190233
AFDSEW

Area Forecast Discussion
National Weather Service Seattle WA
733 PM PDT Wed Mar 18 2026

.SYNOPSIS...
An atmospheric river will continue to bring warm and
wet conditions to western Washington through Friday. With snow
levels around 7000-8000 feet, river flooding due to heavy rain and
snowmelt remains possible for much of the Cascades.
Conditions will dry out and cool down over the weekend, with another
weather system moving https://mesonet.agron.iastate.edu/p.php?pid=202603190233-KSEW-FXUS66-AFDSEW

IEM :: AFD from NWS SEW

AFD issued by NWS SEW at 19 Mar 2026 02:33 UTC

IEMbot SEW 6h ago

#SEW #WAwx 939
CDUS46 KSEW 190118
CLIUIL

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
618 PM PDT WED MAR 18 2026

...................................

...THE QUILLAYUTE WA AIRPORT CLIMATE SUMMARY FOR MARCH 18 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1966 TO 2026

WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR https://mesonet.agron.iastate.edu/p.php?pid=202603190118-KSEW-CDUS46-CLIUIL