Small Craft Advisory 134, NWS Anchorage, AK

AREA FORECAST DISCUSSION SOUTHWEST ALASKA
1115 AM AST THU FEB 10 2005

.DISCUSSION...
.500 MB...
4860M CENTER NEAR SAINT LAWRENCE ISLAND ROTATES WEST AS CENTER MOVING
SOUTH OF KAMCHATKA INTENSIFIES. NEG TILT TROUGH EXTENDING SE FROM
SAINT LAWRENCE ISLAND CENTER MOVES INTO THE SOUTHERN INTERIOR TONIGHT
AND ELONGATES EAST. WEST TO SW FLOW OVER THE WEST AND SOUTHCENTRAL
MAINLAND WILL HOLD IN THROUGH FRI AFTERNOON. RIDGE OVER THE WEST
ALEUTIANS MOVES TO ALONG 155W AND INCREASES IN AMPLITUDE SAT MORNING.
DEVELOPING 5010M CENTER SW OF KAMCHATKA INTENSIFIES AS IT MOVES TO
JUST SOUTH OF SHEMYA SAT AFTERNOON.

.SURFACE
EAST...970S MB LOW OVER WEST PRINCE WILLIAM SOUND(PWS) IS STILL ON
TRACK AND HANDLED WELL BY THE MESO ETA. INCREASING DEPTH OF COLD
ADVECTION SHOWS UP WELL ON THE KENAI RADAR AS THE LAYER HAS DEEPENED
AND THE WINDS ARE CONTINUING TO BACK. COLD AIR HAS ALSO SPREAD TO THE
NORTH GULF COAST AS PACV HAS SHIFTED OVER TO SNOW. SOME WARM AIR
TRAPPED IN THE VALDEZ AREA SHOULD BE DISPLACED BY COOLER AIR BY
AFTERNOON.

CURRENT RADAR IMAGERY SHOWS INTENSE RETURNS FROM SEWARD TO THE
TURNAGAIN ARM/ANCHORAGE BOWL AREA. SNOW SHOULD REMAIN FAIRLY HEAVY
OVER SOUTHCENTRAL THROUGH EARLY THIS EVENING...THEN SLOWLY DIMINISH
OVERNIGHT  AS COLD AIR BECOMES WELL ENTRENCHED AND PWS LOW WEAKENS
AND SLIPS EAST. SOME SNOW SHOWERS WILL STILL LINGER THROUGHOUT THE
REGION FRI AS SW FLOW ALOFT IS SLOW TO SHIFT. SIGNIFICANT DRYING IS
EXPECTED THROUGHOUT SOUTHCENTRAL ALASKA WITH THE ONSET OF NW WINDS
ALOFT FRI NIGHT AND SAT. W-N GAP WINDS PROB WILL BECOME A CONCERN FRI
NIGHT AND SAT OVER THE KENAI PEN AND NORTH GULF.

OUT WEST...SAT PIC SHOWS FAIRLY EXTENSIVE AREA OF OPEN/CLOSED CELL CU
OVER THE CENTRAL AND EASTERN BERING SEA. CURRENT FLOW IS GEN FROM THE
NW...BUT SHOULD SHIFT TO THE W-SW OVER THE EASTERN BERING SEA OVER
THE NEXT 12-18 HOURS. SHIFT IN FLOW SHOULD BRING SNOW SHOWERS INTO
THE SW MAINLAND. DEVELOPING LOW CENTER SOUTH OF KAMCHATKA SHOULD
CONTINUE TO INTENSIFY AND DROP INTO THE 950S AS IT MOVES TO NEAR THE
SOUTHERN TIP OF KAMCHATKA FRI MORNING. ASSOCIATED FRONTAL TROUGH
MOVES TO THE CENTRAL ALEUTIANS FRI MORNING AND TO THE EAST
ALEUTIANS/PRIBILOFS FRI NIGHT. EXPECTED STORM FORCE WINDS WITH
FRONTAL TROUGH AS IT MOVES ACROSS THE ALEUTIANS/BERING SEA.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...HEAVY SNOW WARNING ZONE 101. BLIZZARD WARNING ZONE 145.
MARINE...NUMEROUS UPDATES. SEE LATEST BULLETIN.

RMC FEB 05

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
1016 AM AST THU FEB 10 2005

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

0820 AM     SNOW             SELDOVIA                59.44N 151.71W
02/10/2005  0.0 INCH                            AK   TRAINED SPOTTER

            5 AND 1/2 INCHES, SINCE MIDNIGHT.

&&

STEPETIN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
1019 AM AST THU FEB 10 2005

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

0850 AM     SNOW             HOMER                   59.64N 151.52W
02/10/2005  0.0 INCH                            AK   TRAINED SPOTTER

            VARIES AROUND TOWN FROM 6 TO 12 INCHES, OVERNIGHT.

&&

STEPETIN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
1022 AM AST THU FEB 10 2005

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

0855 AM     SNOW             KENAI                   60.55N 151.21W
02/10/2005  0.0 INCH                            AK   TRAINED SPOTTER

            STERLING TO KENAI, 6 INCHES ALL AROUND.

&&

STEPETIN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
1027 AM AST THU FEB 10 2005

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

0925 AM     SNOW             35 S ANCHORAGE          60.67N 149.19W
02/10/2005  0.0 INCH                            AK   TRAINED SPOTTER

            GIRDWOOD FIRE STATION, SNOW STARTED AROUND 530AM, NEW
            SNOE AROUND 3 TO 4 INCHES, RATE OF FALL IS CURRENTLY 1
            INCH AN HOUR.

&&

STEPETIN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
349 PM AST THU FEB 10 2005

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

0338 PM     SNOW             ANCHORAGE               61.18N 149.19W
02/10/2005  0.0 INCH                            AK   NWS EMPLOYEE

            LOCATION IS AROUND LOWER HILLSIDE, SNOW FALL SO FAR IS 11
            INCHES. ANOTHER LOCATIONS NORTH OF THIS AREA REPORTS 10
            INCHES.

&&

STEPETIN