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PRECIPITATION EVENT WITH HYDROLOGICAL CONCERN

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avatar PRECIPITATION EVENT WITH HYDROLOGICAL CONCERN
February 25, 2006 10:51AM
e0792c4bwa00000
d n News-NWS_REV-SIGNIFICANT 02/25 447
SIGNIFICANT PRECIPITATION EVENT WITH HYDROLOGICAL CONCERN...

NATIONAL WEATHER SERVICE RENO NV

30 AM PST SAT FEB 25 2006

CAZ070>073-NVZ001>005-260000-
SURPRISE VALLEY CALIFORNIA-LASSEN-EASTERN PLUMAS-
EASTERN SIERRA COUNTIES-GREATER LAKE TAHOE AREA-MONO-
MINERAL AND SOUTHERN LYON COUNTIES-GREATER RENO-CARSON CITY-
MINDEN AREA-WESTERN NEVADA BASIN AND RANGE INCLUDING PYRAMID
LAKE-NORTHERN WASHOE COUNTY-

30 AM PST SAT FEB 25 2006

...SIGNIFICANT PRECIPITATION EVENT WITH HYDROLOGICAL CONCERNS FROM
SUNDAY NIGHT THROUGH TUESDAY...

A POWERFUL PACIFIC STORM WILL PUSH WARM AIR AND SUBTROPICAL MOISTURE
OVER CALIFORNIA AND WESTERN NEVADA ON SUNDAY. HEAVY RAIN AND HIGH
ELEVATION SNOW WILL AFFECT MOST OF THE REGION THROUGH TUESDAY
MORNING. SNOW LEVELS WILL REMAIN ABOVE 7000 FEET...AND WILL LIKELY
RISE AS HIGH AS 8000 FEET IN THE TAHOE BASIN AND AS HIGH AS 9000
FEET OVER SOUTHERN MONO COUNTY. THE COMBINATION OF HIGH SNOW LEVELS
AND EXTENDED PERIOD OF HEAVY RAIN RAISES A CONCERN FOR FLOODING.

A FLOOD WATCH HAS BEEN ISSUED FOR THE POTENTIAL FLOODING ON RIVERS
AND STREAMS IN THE LOWER ELEVATIONS OF NORTHEASTERN CALIFORNIA...THE
SIERRA AND WESTERN NEVADA. ALL THOSE WITH INTERESTS NEAR
RIVERS...STREAMS...AND WASHES SHOULD BE AWARE OF THE FLOOD POTENTIAL
BEGINNING LATE SUNDAY AND CONTINUING THROUGH TUESDAY. BE ALERT FOR
QUICK RISES ON RIVERS AND STREAMS AND BE PREPARED TO MOVE TO HIGHER
GROUND.

THIS STORM WILL LIKELY PRODUCE SEVERAL FEET OF SNOW ABOVE 8000 FEET
IN THE TAHOE BASIN AND ABOVE 9000 FEET IN MONO COUNTY. AT THIS TIME
SNOW IS NOT EXPECTED TO ACCUMULATE ON MOUNTAIN PASSES BELOW 8000
FEET UNTIL LATE MONDAY NIGHT AS A COLD FRONT APPROACHES THE AREA.
STRONG WINDS WILL ALSO ACCOMPANY THE STORM. GUSTS OVER THE SIERRA
RIDGES COULD REACH 100 MPH...WITH 40 TO 50 MPH GUSTS IN THE WESTERN
NEVADA VALLEYS.

THE COLD FRONT IS EXPECTED TO BLAST THROUGH THE REGION BY TUESDAY
MORNING...LOWERING SNOW LEVELS TO 4000 FEET OR LESS. THERE IS A
POTENTIAL FOR A FOOT OR MORE OF SNOW BELOW 7000 FEET IN THE SIERRA
AND SEVERAL INCHES OF SNOW IN THE LOWER ELEVATIONS OF NORTHEAST
CALIFORNIA AND WESTERN NEVADA TO ACCUMULATE BEFORE THE STORM ENDS
TUESDAY AFTERNOON.

RAIN...SNOW AND STRONG WINDS WILL CAUSE DIFFICULT TRAVEL CONDITIONS
STARTING SUNDAY NIGHT AND CONTINUING THROUGH TUESDAY. TRAVELERS
SHOULD PLAN ACCORDINGLY FOR THESE CONDITIONS...AND CONTINUE TO
MONITOR FORECASTS AND STATEMENTS FROM THE NATIONAL WEATHER SERVICE.

ANOTHER COLDER STORM IS EXPECTED TO REACH THE AREA ON WEDNESDAY
NIGHT AND CONTINUE THROUGH FRIDAY. SNOW MAY ACCUMULATE DOWN TO THE
VALLEY FLOORS WITH SIGNIFICANT SNOWFALL POSSIBLE ABOVE 5000 FEET.

$$

BRONG





EDIS-02-25-06 0318 PST

avatar WINTER STORM WATCH
February 26, 2006 05:23AM
e0843 b5awa00000
u n Urgent-NWS_HNX-WINTER_ST 02/26 320
WINTER STORM WATCH IN EFFECT FROM MONDAY MORNING THROUGH

NATIONAL WEATHER SERVICE HANFORD CA
439 AM PST SUN FEB 26 2006

.A WARM AND MOIST PACIFIC STORM SYSTEM WILL APPROACH THE REGION
BRINGING THE THREAT OF HEAVY SNOW TO THE HIGHER ELEVATIONS OF THE
SIERRA NEVADA.

CAZ096-097-262045-
/O.NEW.KHNX.WS.A.0005.060227T1400Z-060228T1800Z/
SIERRA NEVADA FROM YOSEMITE TO KINGS CANYON-
TULARE COUNTY MOUNTAINS-
439 AM PST SUN FEB 26 2006

...WINTER STORM WATCH IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY MORNING...

THE NATIONAL WEATHER SERVICE IN HANFORD HAS ISSUED A WINTER STORM
WATCH FOR THE SOUTHERN SIERRA NEVADA ABOVE 8000 FEET...WHICH IS IN
EFFECT FROM 6 AM PST MONDAY MORNING THROUGH 10 AM PST TUESDAY
MORNING.

AN AREA OF LOW PRESSURE IN THE EASTERN PACIFIC WILL BRING
UNSETTLED WEATHER TO THE REGION TONIGHT THROUGH TUESDAY MORNING.
THE HEAVIEST SNOW WILL FALL EARLY MONDAY MORNING THROUGH TUESDAY
MORNING. THE SNOW LEVEL IS FORECAST TO BE NEAR 8000 FEET THROUGH
MONDAY AFTERNOON...FALLING TO ABOUT 7000 FEET BY MONDAY
EVENING...THEN LOWERING TO 4500 TO 5500 FEET TUESDAY. TOTAL
SNOWFALL AT ELEVATIONS OF 8000 FEET AND ABOVE COULD EXCEED 6 FEET
BEFORE TAPERING TO SNOW SHOWERS BY LATE TUESDAY MORNING. HIGH
WINDS ACROSS THE FAVORED AREAS OF THE SIERRA NEVADA MAY EXCEED 60
MPH AT TIMES MONDAY AND MONDAY NIGHT. NEAR THE SIERRA
CREST...GUSTS MAY APPROACH 100 MPH ON MONDAY NIGHT AS A VERY
STRONG JET STREAM MOVES OVER THE AREA. THIS WILL CREATE VERY
BLUSTERY WEATHER WITH OCCASIONAL WHITE-OUT CONDITIONS EXPECTED.

VISIBILITIES ARE EXPECTED TO DROP TO 1/4 MILE OR LESS DUE TO
BLOWING SNOW. IF TRAVEL IS NECESSARY...BE PREPARED FOR SUDDEN
CHANGES IN VISIBILITY.

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW ACCUMULATIONS. CONTINUE TO MONITOR THE LATEST FORECASTS.

LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR THE LATER
UPDATES ON THIS SITUATION.

$$

HTTP://WWW.WEATHER.GOV/HANFORD

MYERS



EDIS-02-26-06 0440 PST
avatar FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT
February 27, 2006 01:26PM
e0944b5awa00000
u n Urgent-NWS_HNX-FLOOD_WAT 02/27 327
FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT

NATIONAL WEATHER SERVICE HANFORD CA
1239 PM PST MON FEB 27 2006

CAZ093>099-280230-
/O.CON.KHNX.FA.A.0002.000000T0000Z-060228T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MARIPOSA MADERA AND FRESNO COUNTY FOOTHILLS-
TULARE COUNTY FOOTHILLS-KERN COUNTY MOUNTAINS-
SIERRA NEVADA FROM YOSEMITE TO KINGS CANYON-
TULARE COUNTY MOUNTAINS-INDIAN WELLS VALLEY-
SOUTHEASTERN KERN COUNTY DESERT-
1239 PM PST MON FEB 27 2006

...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT...

THE FLOOD WATCH CONTINUES FOR

* PORTIONS OF CENTRAL CALIFORNIA...INCLUDING THE FOLLOWING
AREAS...IN CA...MARIPOSA...MADERA AND FRESNO COUNTY FOOTHILLS IN
CENTRAL CALIFORNIA...INDIAN WELLS VALLEY...KERN COUNTY
MOUNTAINS...SIERRA NEVADA FROM YOSEMITE TO KINGS
CANYON...SOUTHEASTERN KERN COUNTY DESERT...TULARE COUNTY
FOOTHILLS AND TULARE COUNTY MOUNTAINS.

* THROUGH LATE TONIGHT

* A STORM SYSTEM THAT IS TAPPING INTO A RICH SUPPLY OF TROPICAL
MOISTURE WILL MOVE EASTWARD ACROSS THE REGION TODAY AND TONIGHT.
THIS STORM IS LIKELY TO PRODUCE 2 TO 4 INCHES OF RAINFALL IN THE
SIERRA FOOTHILLS AND THE KERN COUNTY MOUNTAINS BY LATE TONIGHT
WITH LOCAL RAIN AMOUNTS OF 5 INCHES IN THE HIGHER ELEVATIONS OF
THE SIERRA NEVADA BELOW 8000 FEET. OVER THE KERN COUNTY
DESERT...RAINS MAY BECOME HEAVY ENOUGH TO CAUSE FLOODING OF
CANYONS AND WASHES.

* SIGNIFICANT RAINFALL DURING THIS PERIOD MAY LEAD TO LOCAL
HIGHWAY AND RIVER FLOODING...EXCESSIVE RUNOFF...AND DEBRIS
FLOWS.

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE
ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO
FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING
DEVELOP.

STAY TUNED TO NOAA WEATHER RADIO...OR YOUR FAVORITE NEWS SOURCE...
FOR FURTHER STATEMENTS...ADVISORIES OR WARNINGS ON THIS
DEVELOPING WET PATTERN.

$$


JEB/MEYERS



EDIS-02-27-06 1239 PST

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