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North Bay Flood Warnings

| December 23, 2012
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From the National Weather Service, a flood warning and watch are in effect for Napa County until Monday afternoon and Sonoma County until 2 a.m. Monday, respectively. On the Napa River, minor flooding is predicted at St. Helena and Napa.

Monitor conditions at the National Weather Service’s River Forecast site:

Also:

Flood warning for Napa:

…THE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA HAS ISSUED A
FLOOD WARNING FOR THE FOLLOWING RIVERS IN CALIFORNIA…

NAPA RIVER NEAR ST. HELENA AFFECTING NAPA COUNTY
NAPA RIVER NEAR NAPA AFFECTING NAPA COUNTY
HEAVY RAINFALL THIS MORNING…WHICH CONTINUES INTO THE AFTERNOON WITH FRONTAL PASSAGE…HAS CAUSED THE NAPA RIVER NEAR ST. HELENA AND NAPA RIVER NEAR NAPA TO APPROACH FLOOD STAGE. BOTH LOCATIONS ARE EXPECTED TO REACH FLOOD STAGES LATER TODAY OR THIS EVENING.
THE NATIONAL WEATHER SERVICE IN MTR HAS ISSUED A

* FLOOD WARNING FOR THE NAPA RIVER NEAR NAPA.

* FROM THIS EVENING TO MONDAY AFTERNOON…OR UNTIL THE WARNING IS CANCELLED.

* AT 1:00 PM SUNDAY THE STAGE WAS 19.0 FEET.

* FLOOD STAGE IS 25.0 FEET.

* MODERATE FLOODING IS FORECAST.

* AT 26.0 FEET…MODERATE FLOODING WILL CAUSE CROP LOSSES AND EROSION TO AGRICULTURAL AREAS ALONG THE NAPA RIVER. SOME PRIMARY AND MANY
SECONDARY ROADS WILL HAVE MODERATE FLOODING MAKING TRAVEL VERY
DIFFICULT.

For Sonoma:

THE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA HAS ISSUED A FLOOD WATCH FOR THE FOLLOWING RIVERS IN CALIFORNIA…

RUSSIAN RIVER AT GUERNVILLE AFFECTING SONOMA COUNTY

HEAVY RAINFALL THIS MORNING AND AFTERNOON HAS CREATED ELEVATED STREAMFLOW LEVELS IN THE RUSSIAN RIVER…WITH STAGES EXPECTED TO EXCEED MONITORING STAGE SOMETIME IN THE EARLY MORNING HOURS OF MONDAY DECEMBER 24.

STAGE-USGS-FCST PT AT RUSSIAN RIVER @ GUERNEVILLE 12/23 14:00 STAGE 23.4 FT FORECAST TO RISE ABOVE MONITOR STAGE OF 29.0 FT EARLY TOMORROW MORNING THEN FORECAST TO CREST NEAR 31.0 FT LATE TOMORROW MORNING THEN FORECAST TO FALL BELOW MONITOR STAGE OF 29.0 FT LATE TOMORROW EVENING THEN FORECAST TO RECEDE TO NEAR 11.5 FT EARLY FRIDAY MORNING. MONITOR STAGE 29.0 FT, FLOOD STAGE 32.0 FT

* AT 32.0 FEET…FLOOD STAGE. MINOR FLOODING. LOWER MILL STREET IN GUERNEVILLE AND OLD BOHEMIAN HIGHWAY IN MONTE RIO ARE EXPECTED TO
FLOOD.

Instructions: A FLOOD WATCH MEANS THAT FLOODING IS POSSIBLE BUT NOT IMMINENT. THE LATEST STAGES AND FORECASTS FOR RIVERS AND STREAMS CAN BE FOUND AT /LOWER CASE/ HTTP://WWW.CNRFC.NOAA.GOV/ THE NEXT STATEMENT WILL BE ISSUED AS CONDITIONS WARRANT.

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