981
FNAK77 PAJK 210624
FWSAJK
SPOT FORECAST FOR CHATHAM/FREDERICK USCG...USCG
NATIONAL WEATHER SERVICE JUNEAU AK
1024 PM AKDT MON OCT 20 2025
FORECAST IS BASED ON FORECAST START TIME OF 2200 AKDT ON OCTOBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE AT (907) 790-6824, IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
A LOW PRESSURE SYSTEM CONTINUES TO PUSH INTO THE
SOUTHERN PANHANDLE TONIGHT AHEAD OF ANOTHER SYSTEM THAT ARRIVES
TUESDAY. MODERATE TO STRONG BREEZES OF 20 TO 25 KTS CONTINUE
ACROSS THE SOUTHERN INNER CHANNELS. THESE WINDS SLIGHTLY DECREASE
LATE MONDAY INTO EARLY TUESDAY TO 15 TO 20 KTS BEFORE ONCE AGAIN
QUICKLY INCREASING TUESDAY AFTERNOON AND EVENING. AT THAT TIME
INNER CHANNEL WINDS QUICKLY INCREASE TO AROUND NEAR GALE TO GALE
FORCE WINDS OF 30 TO 35 KTS. WIND GUSTS ALONG CHATHAM, FREDERICK,
AND CLARENCE STRAIT ARE LIKELY TO INCREASE TO 55 KTS AT
TIMES TUESDAY NIGHT. THESE STRONGER WINDS CONTINUE INTO LATE
TUESDAY NIGHT BEFORE SLIGHTLY DIMINISHING INTO WEDNESDAY.
ONE THING TO NOTE IS THE POTENTIAL FOR THUNDERSTORMS LATE TUESDAY
NIGHT INTO EARLY WEDNESDAY BEHIND THE STRONG SYSTEM. THESE SHOWERS
CONTINUE INTO WEDNESDAY.
REST OF TONIGHT
SKY/WEATHER.........CLOUDY (95-100 PERCENT). RAIN SHOWERS.
CHANCE OF PCPN......100 PERCENT.
MIN TEMPERATURE.....AROUND 44.
MAX HUMIDITY........100 PERCENT.
SURFACE WINDS (KTS).SOUTHWEST WINDS 10 TO 19 KNOTS.
WAVE HEIGHT.........5 FEET.
SEA SURFACE TEMP....45 DEGREES FAHRENHEIT.
RAINFALL AMOUNT.....0.35 INCHES.
TIME (AKDT) 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........100 100 100 100 100 100 100 100
WEATHER COV.....DEF DEF DEF DEF DEF DEF DEF DEF
WEATHER TYPE....RW RW RW RW RW RW RW RW
TSTM COV........
CHC OF PCPN (%).100 100 100 100 100 100 100 100
TEMP............46 46 46 47 46 45 45 44
RH..............92 92 88 87 89 91 92 94
SFC WND DIR.....SW SW SW SW SW SW SW SW
SFC WND SPD KTS.10 10 10 11 11 11 19 19
SFC WND GST.....19 19 19 19 19 19 21 21
WAVE HEIGHT (FT)5 5 5 5 5 5 5 5
SST (F).........45 45 45 45 45 45 45 45
TUESDAY
SKY/WEATHER.........CLOUDY (90-100 PERCENT). RAIN SHOWERS.
CHANCE OF PCPN......100 PERCENT.
MAX TEMPERATURE.....AROUND 46.
MIN HUMIDITY........90 PERCENT.
SURFACE WINDS (KTS).SOUTHWEST WINDS 17 TO 19 KNOTS SHIFTING TO THE
SOUTHEAST 7 TO 10 KNOTS IN THE LATE MORNING AND
EARLY AFTERNOON, THEN SHIFTING TO THE EAST
AROUND 15 KNOTS LATE IN THE AFTERNOON.
WAVE HEIGHT.........5 FEET.
SEA SURFACE TEMP....45 DEGREES FAHRENHEIT.
RAINFALL AMOUNT.....0.31 INCHES.
TIME (AKDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........100 100 100 100 93 93 93 96 96 96 100 100
WEATHER COV.....DEF DEF DEF DEF CHC CHC CHC LKY LKY LKY DEF DEF
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........
CHC OF PCPN (%).100 100 100 100 40 40 40 60 60 60 100 100
TEMP............45 45 45 44 44 44 44 45 43 43 43 43
RH..............92 93 93 95 93 94 97 100 99 99 98 98
SFC WND DIR.....SW SW SW SW S S S SE SE SE E E
SFC WND SPD KTS.19 17 17 17 7 7 7 10 10 10 15 15
SFC WND GST.....21 23 23 23 22 22 22 21 21 21 27 27
WAVE HEIGHT (FT)5 4 4 4 3 3 3 3 3 3 4 4
SST (F).........45 45 45 45 45 45 45 45 45 45 45 45
TUESDAY NIGHT
SKY/WEATHER.........CLOUDY (95-100 PERCENT). RAIN SHOWERS.
CHANCE OF PCPN......100 PERCENT.
MIN TEMPERATURE.....AROUND 41.
MAX HUMIDITY........100 PERCENT.
SURFACE WINDS (KTS).BREEZY. EAST WINDS 15 TO 22 KNOTS WITH GUSTS TO
AROUND 37 KNOTS SHIFTING TO THE SOUTHEAST 23 TO
26 KNOTS WITH GUSTS TO AROUND 38 KNOTS IN THE
LATE EVENING AND OVERNIGHT, THEN DECREASING TO
AROUND 17 KNOTS WITH GUSTS TO AROUND 29 KNOTS
AFTER 3 AM.
WAVE HEIGHT.........6 FEET.
SEA SURFACE TEMP....45 DEGREES FAHRENHEIT.
RAINFALL AMOUNT.....1.14 INCHES.
TIME (AKDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........100 100 100 100 100 100 100 100 100 100 100 100
WEATHER COV.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........
CHC OF PCPN (%).100 100 100 100 100 100 100 100 100 100 100 100
TEMP............43 43 43 43 43 43 43 43 43 43 43 43
RH..............94 93 93 92 91 90 89 89 90 92 95 95
SFC WND DIR.....E E E E SE SE SE SE SE SE SE SE
SFC WND SPD KTS.15 22 22 22 26 26 26 23 23 23 17 17
SFC WND GST.....27 37 37 37 38 38 38 34 34 34 29 29
WAVE HEIGHT (FT)4 5 5 5 6 6 6 6 6 6 5 5
SST (F).........45 45 45 45 45 45 45 45 45 45 45 45
FORECASTER...BRUNSEN
REQUESTED BY...USCG
TYPE OF REQUEST...MARINE
.TAG 2524069.0/AJK
.DELDT 10/20/25
.FORMATTERVERSION 2.0.0
.EMAIL SCCSOUTHEASTALASKA@USCG.MIL
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