Sunday, March 20, 2011

Flood Warning and Flood Advisory

THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A FLOOD
WARNING FOR THE...

SACRAMENTO RIVER AT BEND BRIDGE
SACRAMENTO RIVER BELOW RED BLUFF DIVERSION DAM
SACRAMENTO RIVER AT TEHAMA BRIDGE
SACRAMENTO RIVER AT VINA WOODSON BRIDGE
SACRAMENTO RIVER AT ORD FERRY

.SITUATION SUMMARY:
A MAJOR RISE IS WORKING ITS WAY DOWN THE UPPER SACRAMENTO RIVER THIS MORNING.
FLOOD STAGES ARE EXPECTED AT 5 LOCATIONS. OVERFLOW INTO THE BUTTE SINK
AT MOULTON WEIR IS EXPECTED TO BEGIN TONIGHT. OVERFLOW INTO THE SUTTER
BYPASS WILL CONINUTE FOR THE NEXT 5 DAYS AT COLUSA AND TISDALE WEIR.



FORECASTS ARE BASED ON PRESENT AND FORECASTED METEOROLOGICAL AND
HYDROLOGIC CONDITIONS AT TIME OF ISSUANCE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

UNLISTED FORECAST POINTS ARE EXPECTED TO REMAIN BELOW MONITOR STAGE.
ALL THOSE AFFECTED BY RIVER CONDITIONS SHOULD REMAIN ALERT FOR RAPID
CHANGES AND FOR POSSIBLE FORECAST REVISIONS.


THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS EXTENDED THE

* URBAN AND SMALL STREAM FLOOD ADVISORY FOR...
THE SACRAMENTO VALLEY...
THE NORTHERN SAN JOAQUIN VALLEY...
THE DELTA REGION...
THE SIERRA FOOTHILLS BELOW 3000 FEET...

* UNTIL 615 PM PDT

RISES ON SMALL CREEKS AND STREAMS HAVE GENERALLY PEAKED...BUT MINOR
OR NUISANCE TYPE FLOODING OF UNDERPASSES... ROADWAYS...AND OTHER LOW
LYING AREAS CONTINUES TO BE A POSSIBILITY TODAY. FALLEN LEAVES MAY
CLOG DRAINS...WHICH COULD ALSO CAUSE MINOR ROAD FLOODING. ROCK AND
MUD SLIDES ARE ALSO POSSIBLE IN THE FOOTHILLS.

UP TO A QUARTER TO A HALF INCH OF ADDITIONAL RAINFALL IS POSSIBLE
FOR THE REST OF TODAY...WITH LOCALLY HIGHER AMOUNTS IN THE
FOOTHILLS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON
SMALL CREEKS AND STREAMS...AND PONDING OF WATER ON COUNTRY ROADS AND
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

I currently have no power at my house due to very high winds early this morning. Gusts exceeded 50 mph at my house, while in Chico gusts were clocked at 46 mph. Small trees have been blown over in parts of Chico, and many streets are littered with tree limbs. Currently it is still blustery, with scattered rain showers here and there. This pattern will continue, and the winds will subside by this evening as the powerful low pressure system moves away. Showers are expected though the week ahead, with another potentially powerful storm taking aim at us Wednesday and Thursday. Oy, vey, it never ends!

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