[nfbwatlk] Fw: FLOOD WATCH

Mike Freeman k7uij at panix.com
Fri Dec 26 19:31:18 UTC 2008


----- Original Message ----- 
From: "ARRL WWA Section" <memberlist at www.arrl.org>
To: <k7uij at panix.com>
Sent: Friday, December 26, 2008 10:26 AM
Subject: FLOOD WATCH


FLOOD WATCH
NATIONAL WEATHER SERVICE SEATTLE WA
410 AM PST FRI DEC 26 2008

.A STRONG AND WET PACIFIC STORM WILL FINALLY SCOUR OUT THE COLD AIR
MASS THAT HAS BEEN IN PLACE FOR NEARLY A WEEK. PRECIPITATION WILL
LIKELY START OFF AS SNOW ACROSS THE LOWLANDS NEAR THE 500 FOOT LEVEL
BUT WILL QUICKLY CHANGE OVER TO RAIN LATE THIS AFTERNOON OR EARLY
EVENING. EXPECT TYPICAL LOWLAND RAIN AND MOUNTAIN SNOW SATURDAY THROUGH
SUNDAY.

...FLOOD WATCH IN EFFECT FOR MUCH OF WESTERN WASHINGTON FROM NOON PST
TODAY THROUGH SUNDAY MORNING...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A FLOOD WATCH FOR
PORTIONS OF WESTERN WASHINGTON...INCLUDING THE FOLLOWING COUNTIES:
GRAYS HARBOR...CLALLAM... ISLAND...JEFFERSON...SAN JUAN...SKAGIT...
WHATCOM... KING... KITSAP... LEWIS...
MASON...PIERCE...SNOHOMISH...THURSTON.

* A STRONG AND WET PACIFIC STORM WILL USHER IN A WARMER AIR MASS THAT
WILL RESULT IN RAPIDLY RISING SNOW LEVELS. THE COMBINATION OF
INCREASING SOUTHERLY WINDS...MILDER TEMPERATURES...AND RAIN ON TOP OF A
SNOWPACK WILL RESULT IN FAIRLY RAPID SNOW MELT
ACROSS THE LOWLANDS OR AREAS BELOW THE 2000 FOOT LEVEL THIS AFTERNOON
AND TONIGHT.

* THE COMBINATION OF RAIN AND MELTING SNOW ACROSS THE LOWLANDS COULD
RESULT IN URBAN AND SMALL STREAM FLOODING...ESPECIALLY IN THOSE AREAS
WHERE A FOOT OR MORE OF SNOW WAS STILL ON THE GROUND. SNOW AND ICE MAY
RESULT IN CLOGGING OF STORM DRAINS THAT COULD RESULT IN FLOODING OF
STREETS AND.POSSIBLY.HOMES AND BUSINESSES.

A FLOOD WATCH MEANS CONDITIONS ARE FAVORABLE FOR FLOODING BUT FLOODING
IS NOT IMMINENT OR OCCURRING. MONITOR THE LATESTFORECASTS FROM THE
NATIONAL WEATHER SERVICE AND BE READY TO ACT QUICKLY IF FLOODING IS
OBSERVED OR A WARNING IS ISSUED.

--------------------------------------------------------------------
ARRL Western Washington Section
Section Manager: James David Pace, K7CEX
k7cex at arrl.org
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