Wednesday, May 9, 2012

Frost Advisory for Tonight

Just when you thought it was starting to look like Summer....

The National Weather Service has issued a frost advisory for tonight. Be sure to bring in any fragile plants.

URGENT - WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE PORTLAND OR
136 PM PDT WED MAY 9 2012

..CHILLY NIGHT IN STORE FOR SOUTHWEST WASHINGTON AND NORTHWEST
OREGON TONIGHT...

.COOL HIGH PRESSURE FROM THE GULF OF ALASKA IS SETTLING INTO THE
PACIFIC NORTHWEST...BRINGING AN UNSEASONABLE CHILL TO THE AIR FOR
EARLY MAY. SKIES WILL CLEAR IN MOST AREAS SHORTLY AFTER SUNSET.
THE CLEAR SKIES AND LIGHT WINDS WILL PROVIDE OPTIMAL CONDITIONS
FOR COOLING OVERNIGHT. RECORD COOL TEMPERATURES ARE POSSIBLE...
AS TEMPERATURES WILL LIKELY APPROACH THE FREEZING MARK OVERNIGHT
IN THE OUTLYING VALLEYS AWAY FROM METROPOLITAN CENTERS.

ORZ005-WAZ020-022-040-100500-
/O.EXA.KPQR.FR.Y.0001.120510T0700Z-120510T1500Z/
LOWER COLUMBIA-WILLAPA HILLS-I-5 CORRIDOR IN COWLITZ COUNTY-
SOUTH WASHINGTON CASCADE FOOTHILLS-
INCLUDING THE CITIES OF...ST. HELENS...LONGVIEW...KELSO...
TOUTLE...ARIEL...COUGAR
136 PM PDT WED MAY 9 2012

..FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PDT
THURSDAY FOR THE LOWER COLUMBIA
...THE WILLAPA HILLS...THE
INTERSTATE 5 CORRIDOR IN COWLITZ COUNTY...AND THE SOUTH WASHINGTON
CASCADE FOOTHILLS...

THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PDT
THURSDAY.

* TIMING: LATE TONIGHT INTO THURSDAY MORNING.

* TEMPERATURE: LOWER TO MID 30S.

* IMPACTS: SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT
  UNCOVERED. BUDDING PLANTS AND TREES MAY ALSO BE DAMAGED DUE
  TO NEAR FREEZING OR SUBFREEZING TEMPERATURES.


A FROST ADVISORY IS ISSUED WHEN FROST IS EXPECTED TO DEVELOP
DURING THE GROWING SEASON.