Monday, November 22, 2010

coldest air of the season on its way

From the National Weather Service in Sacramento:

FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
THURSDAY MORNING...

A FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
THURSDAY MORNING FOR THE INTERIOR CENTRAL VALLEY OF NORTHERN
CALIFORNIA...INCLUDING THE CARQUINEZ STRAIT AND DELTA.

* TEMPERATURES: OVERNIGHT MINIMUM TEMPERATURES ARE EXPECTED TO
RANGE FROM THE UPPER TEENS IN THE COLDEST OUTLYING AREAS TO THE
MID TO UPPER 20S IN URBAN LOCATIONS. DURATIONS BELOW FREEZING OF
UP TO 8 HOURS OR MORE WILL BE POSSIBLE IN THE COLDEST AREAS.

* TIMING: LATE TUESDAY NIGHT AND EARLY WEDNESDAY MORNING...AND
AGAIN LATE WEDNESDAY NIGHT AND EARLY THURSDAY MORNING.

* LOCATIONS INCLUDE: THE SACRAMENTO VALLEY...DELTA AND NORTHERN
SAN JOAQUIN VALLEY INCLUDING REDDING...CHICO...MARYSVILLE AND
YUBA CITY...SACRAMENTO...VACAVILLE AND FAIRFIELD...STOCKTON AND
MODESTO. COLDEST READINGS WILL BE IN THE OUTLYING AREAS
GENERALLY ALONG THE EAST SIDE OF THE VALLEY. RECORD OR NEAR
RECORD MINIMUM TEMPERATURES ARE POSSIBLE AT MANY LOCATIONS.

* IMPACTS: DAMAGE TO UNPROTECTED OUTDOOR PIPING WILL BE POSSIBLE.
TEMPERATURES AT OR BELOW 28 DEGREES CAN DAMAGE RIPENING CITRUS.
TEMPERATURES AT OR BELOW THE MID 20S THIS TIME OF THE YEAR CAN
DAMAGE NUT TREES...ESPECIALLY WALNUTS...SINCE THE TREES HAVE NOT
YET HARDENED FOR THE WINTER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION.
PROTECTIVE MEASURES SHOULD BE CONSIDERED.

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