541 
FNAK71 PAFC 152303
FWSAER

SPOT FORECAST FOR PLATFORM A GAS RELEASE...ADEC
NATIONAL WEATHER SERVICE ANCHORAGE AK
203 PM AKST WED FEB 15 2017

FORECAST IS BASED ON INCIDENT TIME OF 1300 AKST ON FEBRUARY 15. 
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN ACTIVE WEATHER PATTERN WITH GENERALLY UNSTABLE CONDITIONS
WILL PERSIST. ONE WEAK FRONT WILL MOVE THROUGH THIS EVENING. THEN A STRONGER
FRONT WILL MOVE IN BY LATE THU MORNING AND KEEP SNOW SHOWERS GOING THROUGH
AT LEAST EARLY FRI. STABILITY WILL INCREASE SOMEWHAT FRI INTO SAT WITH DRIER
AIR MOVING IN.

.REST OF TODAY...

SKY/WEATHER.........CLOUDY (85-95 PERCENT). CHANCE OF SNOW SHOWERS. 
CHANCE OF PCPN......50 PERCENT. 
MAX TEMPERATURE.....AROUND 34. 
MIN HUMIDITY........87 PERCENT. 
SURFACE WINDS.......SOUTH WINDS AROUND 9 MPH SHIFTING TO THE EAST 
                    AROUND 5 MPH LATE IN THE AFTERNOON. 
STABILITY CLASS.....MODERATELY UNSTABLE. 
INVERSION HEIGHT....NO INVERSION.
WAVE HEIGHT.........LESS THAN 1 FOOT. 
FREEZING SPRAY......NONE.
SEA ICE COVERAGE....8-10 TENTHS. MAXIMUM THICKNESS WILL BE 90 CM.
					ICE MOVING SIGNIFICANTLY WITH TIDAL CURRENTS.
SEA SURFACE TEMP....36F / 2.4C 
TIDES...............LOW TIDE OF 1.73 FT AT 1:48 PM.  
					HIGH TIDE OF 19.50 FT AT 7:46 PM.

.TONIGHT...

SKY/WEATHER.........CLOUDY (90-100 PERCENT). SNOW SHOWERS LIKELY
                    IN THE EVENING...THEN A CHANCE OF SNOW SHOWERS
                    EARLY IN THE MORNING. SNOW ACCUMULATION AROUND
					1 INCH.
CHANCE OF PCPN......70 PERCENT IN THE EVENING BECOMING 30 PERCENT. 
MIN TEMPERATURE.....AROUND 23. 
MAX HUMIDITY........93 PERCENT. 
SURFACE WINDS.......NORTHEAST WINDS 12 TO 18 MPH. 
STABILITY CLASS.....MODERATELY UNSTABLE BECOMING SLIGHTLY UNSTABLE.  
INVERSION HEIGHT....DROPPING TO AROUND 800 FT.
WAVE HEIGHT.........LESS THAN 1 FOOT. 
FREEZING SPRAY......NONE. 
SEA ICE COVERAGE....8-10 TENTHS. MAXIMUM THICKNESS WILL BE 90 CM.
					ICE MOVING SIGNIFICANTLY WITH TIDAL CURRENTS.
SEA SURFACE TEMP....36F / 2.4C. 
TIDES...............LOW TIDE OF 2.11 FT AT 1:57 AM.
     
.THURSDAY...

SKY/WEATHER.........CLOUDY (90-100 PERCENT). SNOW SHOWERS LIKELY 
                    EARLY IN THE MORNING...THEN SNOW SHOWERS IN THE 
                    LATE MORNING AND AFTERNOON. SNOW ACCUMULATION 1 
					TO 3 INCHES.
CHANCE OF PCPN......100 PERCENT. 
MAX TEMPERATURE.....AROUND 32. 
MIN HUMIDITY........85 PERCENT. 
SURFACE WINDS.......NORTHEAST WINDS 16 TO 20 MPH DECREASING TO 
                    AROUND 10 MPH LATE IN THE AFTERNOON. 
STABILITY CLASS.....MODERATELY UNSTABLE BECOMING SLIGHTLY UNSTABLE BY
					EVENING. 
INVERSION HEIGHT....AROUND 1000 FT THEN NO INVERSION IN THE AFTERNOON.
WAVE HEIGHT.........LESS THAN 1 FOOT. 
FREEZING SPRAY......NONE. 
SEA ICE COVERAGE....8-10 TENTHS. MAXIMUM THICKNESS WILL BE 90 CM.
					ICE MOVING SIGNIFICANTLY WITH TIDAL CURRENTS.
SEA SURFACE TEMP....36F / 2.4C.
TIDES...............HIGH TIDE OF 20.33 FT AT 8:07 AM.
					LOW TIDE OF 2.88 FT AT 2:35 PM.
					HIGH TIDE OF 17.86 FT AT 8:39 PM.

$$
FORECASTER...OTTENWELLER
REQUESTED BY...NOAA, SSC, CATHERINE BERG
TYPE OF REQUEST...MARINE
.TAG 1702189.0/AER
.EMAIL CATHERINE.BERG@NOAA.GOV