Special Weather Statement, NWS Eureka, CA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
405 AM PDT SUN APR 4 2010

.SYNOPSIS...A STRONG LATE SEASON WINTER STORM WILL AFFECT THE
REGION TODAY INTO MONDAY. THIS STORM WILL BRING SIGNIFICANT RAIN
AND SNOW...AND STRONG AND GUSTY WINDS TO NORTHWEST CALIFORNIA.
HIGH PRESSURE WILL BRING DRIER WEATHER TO THE REGION BEGINNING ON
TUESDAY.

&&

.DISCUSSION...THE GENERAL FORECAST REMAINS ON TRACK. A STRONG LATE
SEASON WINTER STORM WILL BRING SIGNIFICANT RAIN AND SNOWFALL TO
THE REGION TODAY INTO MONDAY. RADAR SHOWS THE INITIAL
PRECIPITATION BAND WORKING ITS WAY TOWARDS THE COAST THIS MORNING.
IT WILL OVERSPREAD THE AREA FROM WEST TO EAST OVER THE NEXT FEW
HOURS. SNOW LEVELS WILL START NEAR 2500 FT THIS MORNING, THEN RISE
TO NEAR 3500 FT AS WARM AIR AHEAD OF THE FRONT ADVECTS IN FROM THE
SOUTH. SOUTHERLY WINDS WILL ALSO BECOME GUSTY AHEAD OF THE FRONT.
THEREFORE, ISSUED A WIND ADVISORY FOR THE REDWOOD COAST, MAINLY
FOR GUSTY WINDS ALONG THE DEL NORTE COUNTY COAST. WINDS WILL
DIMINISH AS THE FRONT PASSES LATE THIS AFTERNOON. BEHIND THE FRONT
COLD AIR WILL ADVECT INTO THE AREA CAUSING SNOW LEVELS TO DROP TO
NEAR 1500 FT TONIGHT. QPF AMOUNTS CONTINUE TO BE ABOUT THE SAME
AND THIS TRANSLATES TO TOTAL SNOW ACCUMULATIONS OF 4 TO 6 INCHES
UP TO 2500 FEET...6 TO 12 INCHES UP TO 3000 FEET...AND 12 TO 18
INCHES ABOVE 3000 FEET. HIGH SURF AND THUNDERSTORMS OVER THE WATER
WILL ALSO BE THREATS, THOUGH SMALL COMPARED TO THE HEAVY
PRECIPITATION. SNOW WILL DIMINISH LATE MONDAY AS THE STORM MOVES
FURTHER INLAND. HIGH PRESSURE WILL BEGIN TO MOVE INTO THE REGION
ON TUESDAY, BRINGING DRY WEATHER. STROZ

&&

.AVIATION...SOUTH WINDS WILL CONTINUE TO RAMP UP THIS MORNING AS A
COLD FRONT APPROACHES THE COASTLINE. STRONG AND GUSTY SE WINDS
WILL SHIFT TO THE SOUTH BY EARLY AFTERNOON AND THEN GO SW AND W BY
LATE AFTERNOON AS MODERATE/HEAVY RAIN AND LOW MVFR CEILINGS/VSBYS
SPREAD INTO THE REGION. LOW LEVEL WIND SHEAR NEAR AND DURING
FRONTAL PASSAGE THIS AFTERNOON IS POSSIBLE. CONVECTIVE ACTIVITY
WITH ABUNDANT SHOWERS WILL FOLLOW THE FRONT TONIGHT. A FEW BOLTS
OF LIGHTNING WILL BE POSSIBLE.

&&

.MARINE...SOUTH WINDS WILL CONTINUE TO INCREASE THIS MORNING AS A
COLD FRONT NEARS THE WATERS AND REACHES GALE STRENGTH BY MID-
MORNING. GALE CONDITIONS LOOK MARGINAL IN THE SOUTHERN PART OF
PZZ455...FT BRAGG TO PT ARENA...BUT ISSUED IT ANYWAY. LARGE AND
STEEP SEAS WILL DEVELOP IN RESPONSE TO THE STRONG WINDS. THUS
CONTINUED THE WARNING FOR WIND WAVES OF 10 FT. A WEST SWELL WILL
BUILD ACROSS THE WATERS TONIGHT...REACHING 15-19 FEET WITH PERIODS
OF 13-15 SECONDS. THIS WILL BE SUFFICIENT TO WARRANT A WARNING FOR
SEAS. SEAS AND WINDS WILL DIMINISH MON-WED...THEN A GOOD NORTHERLY
SURGE LOOKS TO DEVELOP ON THU.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...

CA...

WINTER STORM WARNING ABOVE 2500 FEET FOR CAZ003-004-076.
WINTER WEATHER ADVISORY BETWEEN 1500 AND 2500 FEET FOR CAZ003-004-076.
WIND ADVISORY FOR CAZ001.

NORTHWEST CALIFORNIA COASTAL WATERS...

GALE WARNING FOR PZZ450-470-475.
HAZARDOUS SEAS WARNING FOR PZZ450-455-470-475.

&&

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EUREKA CA
401 AM PDT SUN APR 4 2010

CAZ001-051245-
REDWOOD COAST-
401 AM PDT SUN APR 4 2010

...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 5 PM PDT THIS
AFTERNOON...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT.

A WIND ADVISORY IS CURRENTLY IN EFFECT. FOR FURTHER DETAILS
PLEASE REFER TO NOAA WEATHER RADIO OR WEATHER.GOV/EUREKA.

ADDITIONALLY...PERIODS OF HEAVY RAIN ARE EXPECTED TODAY AND
TONIGHT. LOCALIZED MINOR FLOODING AND PONDING OF WATER WILL BE
POSSIBLE...ESPECIALLY IN LOW LYING AREAS. STRONG WIND GUSTS ARE
ALSO LIKELY TODAY...ESPECIALLY ALONG COASTAL DEL NORTE COUNTY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

PERIODS OF HEAVY RAIN ARE EXPECTED ON MONDAY. LOCALIZED
MINOR FLOODING AND PONDING OF WATER WILL BE POSSIBLE...ESPECIALLY
IN LOW LYING AREAS.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER TO THE
NATIONAL WEATHER SERVICE IN EUREKA.

CAZ003-004-076-051245-
NORTH COAST INTERIOR-UPPER TRINITY RIVER-MENDOCINO INTERIOR-
401 AM PDT SUN APR 4 2010

...WINTER STORM WARNING IN EFFECT FROM 8 AM THIS MORNING TO 5 PM PDT
MONDAY...
...WINTER WEATHER ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 5 PM PDT
MONDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT.

A WINTER STORM WARNING AND A WINTER WEATHER ADVISORY ARE CURRENTLY
IN EFFECT. FOR FURTHER DETAILS PLEASE REFER TO NOAA WEATHER RADIO OR
WEATHER.GOV/EUREKA.

ADDITIONALLY...PERIODS OF HEAVY RAIN ARE EXPECTED TODAY AND
TONIGHT IN THE VALLEYS AND LOWER TERRAIN. LOCALIZED MINOR
FLOODING AND PONDING OF WATER WILL BE POSSIBLE...ESPECIALLY IN LOW
LYING AREAS. STRONG WIND GUSTS ARE ALSO LIKELY TODAY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

A WINTER STORM WARNING AND A WINTER WEATHER ADVISORY ARE CURRENTLY
IN EFFECT. FOR FURTHER DETAILS PLEASE REFER TO NOAA WEATHER RADIO
OR WEATHER.GOV/EUREKA.

PERIODS OF HEAVY RAIN ARE EXPECTED ON MONDAY IN THE VALLEYS AND LOWER
TERRAIN. LOCALIZED MINOR FLOODING AND PONDING OF WATER WILL BE
POSSIBLE...ESPECIALLY IN LOW LYING AREAS.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER TO THE
NATIONAL WEATHER SERVICE IN EUREKA.

CAZ002-051245-
MENDOCINO COAST-
401 AM PDT SUN APR 4 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT.

PERIODS OF HEAVY RAIN ARE EXPECTED TODAY AND TONIGHT. LOCALIZED
MINOR FLOODING AND PONDING OF WATER WILL BE POSSIBLE...ESPECIALLY
IN LOW LYING AREAS. STRONG WIND GUSTS ARE ALSO LIKELY
TODAY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

PERIODS OF HEAVY RAIN ARE EXPECTED ON MONDAY. LOCALIZED
MINOR FLOODING AND PONDING OF WATER WILL BE POSSIBLE...ESPECIALLY
IN LOW LYING AREAS.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER TO THE
NATIONAL WEATHER SERVICE IN EUREKA.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EUREKA CA
1045 AM PDT SUN APR 04 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1043 AM     SNOW             KNEELAND                40.75N 123.98W
04/04/2010  M0.0 INCH        HUMBOLDT           CA   TRAINED SPOTTER

            SNOWING ALL MORNING. SNOW STARTING TO ACCUMULATE NOW.
            ELEVATION 2500 FEET.

&&

HENRY

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SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE EUREKA CA
1133 AM PDT SUN APR 4 2010

CAZ001-003-041915-
HUMBOLDT CA-
1133 AM PDT SUN APR 4 2010

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHWESTERN HUMBOLDT COUNTY IN NORTHWEST CALIFORNIA INCLUDING
  CAPE MENDOCINO

UNTIL 1215 PM PDT

AT 1130 AM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 6 MILES WEST OF
FORTUNA TO 16 MILES SOUTHWEST OF SHELTER COVE..AND MOVING NORTHEAST
AT 25 MPH.

WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS LINE OF STORMS.

LOCATIONS IMPACTED INCLUDE...
   FORTUNA...
   RIO DELL AND  SCOTIA...
   HONEYDEW...
   CARLOTTA...
   PEPPERWOOD... MAPLE CREEK AND  WEOTT...

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 4030 12434 4038 12435 4062 12431 4094 12379
      4012 12391 4005 12402 4005 12407 4010 12410
      4012 12417 4025 12436
TIME...MOT...LOC 1832Z 230DEG 23KT 4058 12423 3994 12432

HENRY