Alert archive / Alaska / Storm Warnings in 2013
Storm Warning 187, NWS Anchorage, AK
NWS Anchorage, AK issued this storm warning at Dec 17, 2013, 4:00 PM AKST. It was in force for 24 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Dec 17, 2013, 4:00 PM AKST (01:00 UTC)
- Expired
- Dec 18, 2013, 4:00 PM AKST
- In force
- 24 hr
- Issued by
- NWS Anchorage, AK
The text
As transmitted, in the capitals the NWS used until 2016.
000 FZAK62 PAFC 180041 OFFALU OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 400 PM AKST TUE DEC 17 2013 OFFSHORE WATERS FORECAST FOR THE BERING SEA WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT. PKZ499-181500- 400 PM AKST TUE DEC 17 2013 .SYNOPSIS FOR CENTRAL BERING SEA... A WEATHER FRONT ALONG THE ALEUTIAN ISLANDS WILL PUSH INTO THE BERING SEA WED. A 975 MB LOW WILL DEVELOP NEAR 51N 178W TUE NIGHT AND REMAIN NEARLY STATIONARY BEFORE BEING ABSORBED INTO A 977 MB LOW NEAR 48N 175W THU AFTERNOON. A 979 MB LOW WILL DEVELOP NEAR 54N 166W WED MORNING AND MOVE INLAND NEAR 59N 160W AT 990 MB WED NIGHT. $$ PKZ411-181500- BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL DATELINE 400 PM AKST TUE DEC 17 2013 ...STORM WARNING WEDNESDAY... .TONIGHT...NE WIND 25 TO 45 KT. SEAS 17 FT. PATCHY FOG. .WED...NE WIND 35 TO 50 KT. SEAS 24 FT. PATCHY FOG. .WED NIGHT...NE WIND 35 TO 45 KT. SEAS 24 FT. PATCHY FOG. .THU...NE WIND 40 KT. SEAS 23 FT. .THU NIGHT...NE WIND 40 KT. SEAS 20 FT. .FRI...N WIND 30 KT. SEAS 16 FT. .SAT...NE WIND 25 KT. SEAS 9 FT. .SUN...NE WIND 30 KT. SEAS 11 FT. $$ PKZ412-181500- BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N 400 PM AKST TUE DEC 17 2013 ...GALE WARNING THROUGH WEDNESDAY NIGHT... .TONIGHT...E WIND 10 TO 30 KT INCREASING TO 20 TO 40 KT AFTER MIDNIGHT. SEAS 13 FT. PATCHY FOG. .WED...NE WIND 35 TO 45 KT. SEAS 20 FT. PATCHY FOG. .WED NIGHT...NE WIND 30 TO 40 KT. SEAS 21 FT. PATCHY FOG. .THU...NE WIND 35 KT. SEAS 18 FT. .THU NIGHT...NE WIND 35 KT. SEAS 15 FT. .FRI...N WIND 35 KT. SEAS 13 FT. .SAT...N WIND 20 KT. SEAS 8 FT. .SUN...NE WIND 30 KT. SEAS 9 FT. $$ PKZ413-181500- BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N 400 PM AKST TUE DEC 17 2013 ...STORM WARNING THROUGH WEDNESDAY... .TONIGHT...E WIND 30 TO 40 KT INCREASING TO 40 TO 50 KT AFTER MIDNIGHT. SEAS 21 FT. PATCHY FOG. RAIN AND SNOW. .WED...NE WIND 35 TO 50 KT. SEAS 25 FT. PATCHY FOG. RAIN AND SNOW. .WED NIGHT...E WIND 25 TO 45 KT. SEAS 24 FT. PATCHY FOG. RAIN AND SNOW. .THU...NE WIND 40 KT. SEAS 21 FT. .THU NIGHT...NE WIND 40 KT. SEAS 20 FT. .FRI...N WIND 40 KT. SEAS 19 FT. .SAT...NE WIND 20 KT. SEAS 10 FT. .SUN...E WIND 30 KT. SEAS 9 FT. $$ PKZ414-181500- BERING SEA OFFSHORE EAST OF 171W 400 PM AKST TUE DEC 17 2013 ...GALE WARNING THROUGH WEDNESDAY NIGHT... .TONIGHT...E WIND 15 TO 35 KT INCREASING TO 25 TO 45 KT AFTER MIDNIGHT. SEAS 13 FT. PATCHY FOG. SNOW AND RAIN. .WED...E WIND 30 TO 45 KT. SEAS 16 FT. PATCHY FOG. SNOW AND RAIN. .WED NIGHT...NE WIND 20 TO 35 KT. SEAS 16 FT. PATCHY FOG. RAIN AND SNOW. .THU...NE WIND 25 KT. SEAS 11 FT. .THU NIGHT...NE WIND 30 KT. SEAS 10 FT. .FRI...N WIND 30 KT. SEAS 11 FT. .SAT...NW WIND 20 KT. SEAS 9 FT. .SUN...E WIND 25 KT. SEAS 8 FT. $$
4 follow-up statements
000 FZAK62 PAFC 181223 OFFALU OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 400 AM AKST WED DEC 18 2013 OFFSHORE WATERS FORECAST FOR THE BERING SEA WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT. PKZ499-190300- 400 AM AKST WED DEC 18 2013 .SYNOPSIS FOR CENTRAL BERING SEA... A 973 MB LOW NEAR 51N 176W WILL REMAIN NEARLY STATIONARY BEFORE BEING ABSORBED INTO A 978 MB LOW NEAR 49N 178W THU AFTERNOON. THIS LOW MOVES TO 53N 173W AT 984 MB FRI MORNING. $$ PKZ411-190300- BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL DATELINE 400 AM AKST WED DEC 18 2013 ...STORM WARNING TODAY... .TODAY...NE WIND 40 TO 50 KT. SEAS 24 FT. PATCHY FOG. .TONIGHT...NE WIND 35 TO 45 KT. SEAS 24 FT. PATCHY FOG. .THU...NE WIND 35 TO 45 KT. SEAS 23 FT. PATCHY FOG. FREEZING SPRAY. .THU NIGHT...NE WIND 40 KT. SEAS 20 FT. .FRI...N WIND 35 KT. SEAS 16 FT. .SAT...E WIND 25 KT. SEAS 8 FT. .SUN...E WIND 30 KT. SEAS 19 FT. $$ PKZ412-190300- BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N 400 AM AKST WED DEC 18 2013 ...GALE WARNING THROUGH THURSDAY... .TODAY...NE WIND 45 KT. SEAS 21 FT. PATCHY FOG. .TONIGHT...NE WIND 35 TO 45 KT. SEAS 21 FT. PATCHY FOG. SNOW AND RAIN. FREEZING SPRAY N OF 58N. .THU...NE WIND 40 KT. SEAS 19 FT. PATCHY FOG. SNOW AND RAIN. FREEZING SPRAY N OF 57N. .THU NIGHT...NE WIND 35 KT. SEAS 16 FT. .FRI...N WIND 35 KT. SEAS 15 FT. .SAT...N WIND 20 KT. SEAS 9 FT. .SUN...E WIND 30 KT. SEAS 12 FT. $$ PKZ413-190300- BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N 400 AM AKST WED DEC 18 2013 ...STORM WARNING TODAY... .TODAY...NE WIND 50 KT. SEAS 25 FT. E OF 175W...NE WIND 50 KT BECOMING SE 15 KT IN THE AFTERNOON. SEAS 23 FT SUBSIDING TO 15 FT. PATCHY FOG. RAIN AND SNOW. .TONIGHT...E WIND 45 KT. SEAS 23 FT. E OF 175W...SE WIND 15 KT. SEAS 14 FT. PATCHY FOG. RAIN AND SNOW. .THU...NE WIND 40 KT. SEAS 21 FT. E OF 175W...E WIND 20 TO 30 KT. SEAS 13 FT. PATCHY FOG. RAIN AND SNOW. .THU NIGHT...NE WIND 40 KT. SEAS 20 FT. .FRI...N WIND 40 KT. SEAS 20 FT. .SAT...NE WIND 20 KT. SEAS 11 FT. .SUN...E WIND 30 KT. SEAS 16 FT. $$ PKZ414-190300- BERING SEA OFFSHORE EAST OF 171W 400 AM AKST WED DEC 18 2013 ...GALE WARNING THROUGH TONIGHT... .TODAY...E WIND 45 KT DIMINISHING TO 35 FT IN THE AFTERNOON. SEAS 17 FT. S OF 57N...E WIND 45 KT BECOMING SE 25 KT IN THE AFTERNOON. SEAS 17 FT SUBSIDING TO 12 FT. PATCHY FOG. RAIN AND SNOW. .TONIGHT...NE WIND 35 KT. SEAS 15 FT. S OF 57N...S WIND 15 KT. SEAS 7 FT. PATCHY FOG. RAIN AND SNOW. .THU...NE WIND 20 TO 30 KT. SEAS 5 TO 10 FT. PATCHY FOG. .THU NIGHT...E WIND 30 KT. SEAS 10 FT. .FRI...N WIND 35 KT. SEAS 13 FT. .SAT...NW WIND 25 KT. SEAS 11 FT. .SUN...E WIND 30 KT. SEAS 10 FT. $$
000 FZAK62 PAFC 181512 CCA OFFALU OFFSHORE WATERS FORECAST...CORRECTED NATIONAL WEATHER SERVICE ANCHORAGE AK 615 AM AKST WED DEC 18 2013 CORRECTED TYPO 414 OFFSHORE WATERS FORECAST FOR THE BERING SEA WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT. PKZ499-190300- 400 AM AKST WED DEC 18 2013 .SYNOPSIS FOR CENTRAL BERING SEA... A 973 MB LOW NEAR 51N 176W WILL REMAIN NEARLY STATIONARY BEFORE BEING ABSORBED INTO A 978 MB LOW NEAR 49N 178W THU AFTERNOON. THIS LOW MOVES TO 53N 173W AT 984 MB FRI MORNING. $$ PKZ411-190300- BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL DATELINE 400 AM AKST WED DEC 18 2013 ...STORM WARNING TODAY... .TODAY...NE WIND 40 TO 50 KT. SEAS 24 FT. PATCHY FOG. .TONIGHT...NE WIND 35 TO 45 KT. SEAS 24 FT. PATCHY FOG. .THU...NE WIND 35 TO 45 KT. SEAS 23 FT. PATCHY FOG. FREEZING SPRAY. .THU NIGHT...NE WIND 40 KT. SEAS 20 FT. .FRI...N WIND 35 KT. SEAS 16 FT. .SAT...E WIND 25 KT. SEAS 8 FT. .SUN...E WIND 30 KT. SEAS 19 FT. $$ PKZ412-190300- BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N 400 AM AKST WED DEC 18 2013 ...GALE WARNING THROUGH THURSDAY... .TODAY...NE WIND 45 KT. SEAS 21 FT. PATCHY FOG. .TONIGHT...NE WIND 35 TO 45 KT. SEAS 21 FT. PATCHY FOG. SNOW AND RAIN. FREEZING SPRAY N OF 58N. .THU...NE WIND 40 KT. SEAS 19 FT. PATCHY FOG. SNOW AND RAIN. FREEZING SPRAY N OF 57N. .THU NIGHT...NE WIND 35 KT. SEAS 16 FT. .FRI...N WIND 35 KT. SEAS 15 FT. .SAT...N WIND 20 KT. SEAS 9 FT. .SUN...E WIND 30 KT. SEAS 12 FT. $$ PKZ413-190300- BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N 400 AM AKST WED DEC 18 2013 ...STORM WARNING TODAY... .TODAY...NE WIND 50 KT. SEAS 25 FT. E OF 175W...NE WIND 50 KT BECOMING SE 15 KT IN THE AFTERNOON. SEAS 23 FT SUBSIDING TO 15 FT. PATCHY FOG. RAIN AND SNOW. .TONIGHT...E WIND 45 KT. SEAS 23 FT. E OF 175W...SE WIND 15 KT. SEAS 14 FT. PATCHY FOG. RAIN AND SNOW. .THU...NE WIND 40 KT. SEAS 21 FT. E OF 175W...E WIND 20 TO 30 KT. SEAS 13 FT. PATCHY FOG. RAIN AND SNOW. .THU NIGHT...NE WIND 40 KT. SEAS 20 FT. .FRI...N WIND 40 KT. SEAS 20 FT. .SAT...NE WIND 20 KT. SEAS 11 FT. .SUN...E WIND 30 KT. SEAS 16 FT. $$ PKZ414-190300- BERING SEA OFFSHORE EAST OF 171W 400 AM AKST WED DEC 18 2013 ...GALE WARNING THROUGH TONIGHT... .TODAY...E WIND 45 KT DIMINISHING TO 35 KT IN THE AFTERNOON. SEAS 17 FT. S OF 57N...E WIND 45 KT BECOMING SE 25 KT IN THE AFTERNOON. SEAS 17 FT SUBSIDING TO 12 FT. PATCHY FOG. RAIN AND SNOW. .TONIGHT...NE WIND 35 KT. SEAS 15 FT. S OF 57N...S WIND 15 KT. SEAS 7 FT. PATCHY FOG. RAIN AND SNOW. .THU...NE WIND 20 TO 30 KT. SEAS 5 TO 10 FT. PATCHY FOG. .THU NIGHT...E WIND 30 KT. SEAS 10 FT. .FRI...N WIND 35 KT. SEAS 13 FT. .SAT...NW WIND 25 KT. SEAS 11 FT. .SUN...E WIND 30 KT. SEAS 10 FT. $$
000 FZAK62 PAFC 181910 AAA OFFALU OFFSHORE WATERS FORECAST...CORRECTED NATIONAL WEATHER SERVICE ANCHORAGE AK 1010 AM AKST WED DEC 18 2013 UPDATED ZONE 412 OFFSHORE WATERS FORECAST FOR THE BERING SEA WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT. PKZ499-190300- 400 AM AKST WED DEC 18 2013 .SYNOPSIS FOR CENTRAL BERING SEA... A 973 MB LOW NEAR 51N 176W WILL REMAIN NEARLY STATIONARY BEFORE BEING ABSORBED INTO A 978 MB LOW NEAR 49N 178W THU AFTERNOON. THIS LOW MOVES TO 53N 173W AT 984 MB FRI MORNING. $$ PKZ411-190300- BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL DATELINE 400 AM AKST WED DEC 18 2013 ...STORM WARNING TODAY... .TODAY...NE WIND 40 TO 50 KT. SEAS 24 FT. PATCHY FOG. .TONIGHT...NE WIND 35 TO 45 KT. SEAS 24 FT. PATCHY FOG. .THU...NE WIND 35 TO 45 KT. SEAS 23 FT. PATCHY FOG. FREEZING SPRAY. .THU NIGHT...NE WIND 40 KT. SEAS 20 FT. .FRI...N WIND 35 KT. SEAS 16 FT. .SAT...E WIND 25 KT. SEAS 8 FT. .SUN...E WIND 30 KT. SEAS 19 FT. $$ PKZ412-190300- BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N 1010 AM AKST WED DEC 18 2013 ...GALE WARNING THROUGH THURSDAY... .TODAY...NE WIND 45 KT. SEAS 24 TO 28 FT. PATCHY FOG. SNOW. .TONIGHT...NE WIND 35 TO 45 KT. SEAS 22 TO 26 FT. PATCHY FOG. SNOW AND RAIN. FREEZING SPRAY N OF 58N. .THU...NE WIND 40 KT. SEAS 19 FT. PATCHY FOG. SNOW AND RAIN. FREEZING SPRAY N OF 57N. .THU NIGHT...NE WIND 35 KT. SEAS 16 FT. .FRI...N WIND 35 KT. SEAS 15 FT. .SAT...N WIND 20 KT. SEAS 9 FT. .SUN...E WIND 30 KT. SEAS 12 FT. $$ PKZ413-190300- BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N 400 AM AKST WED DEC 18 2013 ...STORM WARNING TODAY... .TODAY...NE WIND 50 KT. SEAS 25 FT. E OF 175W...NE WIND 50 KT BECOMING SE 15 KT IN THE AFTERNOON. SEAS 23 FT SUBSIDING TO 15 FT. PATCHY FOG. RAIN AND SNOW. .TONIGHT...E WIND 45 KT. SEAS 23 FT. E OF 175W...SE WIND 15 KT. SEAS 14 FT. PATCHY FOG. RAIN AND SNOW. .THU...NE WIND 40 KT. SEAS 21 FT. E OF 175W...E WIND 20 TO 30 KT. SEAS 13 FT. PATCHY FOG. RAIN AND SNOW. .THU NIGHT...NE WIND 40 KT. SEAS 20 FT. .FRI...N WIND 40 KT. SEAS 20 FT. .SAT...NE WIND 20 KT. SEAS 11 FT. .SUN...E WIND 30 KT. SEAS 16 FT. $$ PKZ414-190300- BERING SEA OFFSHORE EAST OF 171W 400 AM AKST WED DEC 18 2013 ...GALE WARNING THROUGH TONIGHT... .TODAY...E WIND 45 KT DIMINISHING TO 35 KT IN THE AFTERNOON. SEAS 17 FT. S OF 57N...E WIND 45 KT BECOMING SE 25 KT IN THE AFTERNOON. SEAS 17 FT SUBSIDING TO 12 FT. PATCHY FOG. RAIN AND SNOW. .TONIGHT...NE WIND 35 KT. SEAS 15 FT. S OF 57N...S WIND 15 KT. SEAS 7 FT. PATCHY FOG. RAIN AND SNOW. .THU...NE WIND 20 TO 30 KT. SEAS 5 TO 10 FT. PATCHY FOG. .THU NIGHT...E WIND 30 KT. SEAS 10 FT. .FRI...N WIND 35 KT. SEAS 13 FT. .SAT...NW WIND 25 KT. SEAS 11 FT. .SUN...E WIND 30 KT. SEAS 10 FT. $$
000 FZAK62 PAFC 190032 OFFALU OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 400 PM AKST WED DEC 18 2013 OFFSHORE WATERS FORECAST FOR THE BERING SEA WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT. PKZ499-191500- 400 PM AKST WED DEC 18 2013 .SYNOPSIS FOR CENTRAL BERING SEA... A 974 MB LOW NEAR 53N 177W WILL MOVE TO 52N 171W AT 987 MB FRI AFTERNOON. A 986 MB LOW NEAR 54N 172W THU NIGHT WILL MOVE TO 59N 164W AT 986 MB FRI AFTERNOON. $$ PKZ411-191500- BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL DATELINE 400 PM AKST WED DEC 18 2013 ...GALE WARNING THROUGH THURSDAY NIGHT... .TONIGHT...NE WIND 45 KT. SEAS 25 FT. SNOW. FREEZING SPRAY. .THU...NE WIND 45 KT. SEAS 24 FT. FREEZING SPRAY. .THU NIGHT...NE WIND 40 KT. SEAS 22 FT. FREEZING SPRAY. .FRI...N WIND 35 KT. SEAS 18 FT. .FRI NIGHT...N WIND 25 KT. SEAS 13 FT. .SAT...W WIND 20 KT. SEAS 9 FT. .SUN...E WIND 30 KT. SEAS 19 FT. .MON...NE WIND 30 KT. SEAS 19 FT. $$ PKZ412-191500- BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N 400 PM AKST WED DEC 18 2013 ...GALE WARNING THROUGH THURSDAY NIGHT... .TONIGHT...NE WIND 45 KT. SEAS 22 TO 26 FT. SNOW. .THU...NE WIND 40 KT. SEAS 20 FT. SNOW. FREEZING SPRAY. .THU NIGHT...NE WIND 35 KT. SEAS 17 FT. SNOW SHOWERS. FREEZING SPRAY. .FRI...N WIND 40 KT. SEAS 17 FT. .FRI NIGHT...N WIND 35 KT. SEAS 16 FT. .SAT...W WIND 30 KT. SEAS 14 FT. .SUN...E WIND 30 KT. SEAS 12 FT. .MON...NE WIND 30 KT. SEAS 17 FT. $$ PKZ413-191500- BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N 400 PM AKST WED DEC 18 2013 ...GALE WARNING THROUGH THURSDAY NIGHT... .TONIGHT...E WIND 45 KT. SEAS 25 FT. SNOW AND RAIN. .THU...NE WIND 40 KT. SEAS 22 FT. SNOW AND RAIN. .THU NIGHT...NE WIND 45 KT. SEAS 20 FT. SNOW AND RAIN. .FRI AND FRI NIGHT...N WIND 40 KT. SEAS 21 FT. .SAT...N WIND 30 KT. SEAS 16 FT. .SUN AND MON...E WIND 30 KT. SEAS 16 FT. $$ PKZ414-191500- BERING SEA OFFSHORE EAST OF 171W 400 PM AKST WED DEC 18 2013 ...GALE WARNING TONIGHT... .TONIGHT...SE WIND 35 KT. SEAS 14 FT. RAIN AND SNOW. .THU...E WIND 30 KT. SEAS 9 FT. RAIN AND SNOW. .THU NIGHT...E WIND 30 KT. SEAS 10 FT. RAIN AND SNOW. .FRI...NE WIND 35 KT. SEAS 13 FT. .FRI NIGHT...N WIND 35 KT. SEAS 14 FT. .SAT...NW WIND 35 KT. SEAS 14 FT. .SUN...E WIND 30 KT. SEAS 10 FT. .MON...E WIND 30 KT. SEAS 14 FT. $$ JM
What forecasters said that day
The local office's own words before this storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Anchorage, AK wrote its last area forecast discussion before this storm warning went out at Dec 17, 5:00 AM AKST, 11 hours earlier.
Area forecast discussion, Dec 17, 5:00 AM AKST, 11 hours before
SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
500 AM AKST TUE DEC 17 2013
.ANALYSIS AND UPPER LEVELS...
FROM WEST TO EAST...WEAK RIDGING REMAINS OVER THE BERING WITH WEAK
UPPER LEVEL FLOW. SOUTH OF THE WESTERN ALEUTIANS...A COMPLEX AREA OF
LOW PRESSURE CONTINUES TO DEVELOP WITH THE HELP OF A 130+KT JET
STREAM. OVER THE CENTRAL ALEUTIANS AND EXTENDING THROUGH THE ALASKA
PENINSULA IS A PORTION OF THE BERING RIDGE. A WEAK CLIPPER TYPE
SYSTEM IS MOVING THROUGH THE NORTHWEST PORTION OF AK UNDER MODERATE
NORTHWEST FLOW. A SHORTWAVE RIDGE IS STARTING TO MOVE INTO
SOUTHCENTRAL AND REPLACE THE THE REMNANT TROUGH THAT IS PULLING OUT
OF THE NE GOA AND INTO CANADA.
.MODEL DISCUSSION...
MODELS CONTINUE TO COME INTO AGREEMENT WITH THE COMPLEX LOW SOUTH OF
THE ALEUTIANS. THEY NOW ALL ADVERTISE A WARM FRONT SPREADING UP
THROUGH THE EASTERN ALEUTIANS EARLY WEDNESDAY WITH A TRIPLE POINT LOW
DEVELOPING JUST SOUTH OF ADAK. THIS INITIAL SYSTEM IS THEN PROGGED TO
OCCLUDE LATE WEDNESDAY. A NEW TRIPLE POINT LOW WILL THEN DEVELOP NEAR
KODIAK ISLAND AND MOVE EAST NORTHEAST THROUGH THE GULF ON THURSDAY.
WITH A FAIRLY TIGHT MODEL CLUSTER...THERE IS SLIGHTLY ABOVE AVERAGE
CONFIDENCE IN THIS PORTION OF THE FORECAST. LATE THURSDAY INTO THE
WEEKEND...THERE IS A VERY BROAD SPECTRUM AMONGST THE MODELS. THE
GENERAL IDEA OF A LOW IN THE EASTERN GULF WEAKENING AND A NEW LOW
DEVELOPING NEAR THE CENTRAL ALEUTIANS IS CONSISTENT. BUT THE STRENGTH
OF THE NEW LOW AND TIMING OF SMALLER SCALE FEATURES IS NOT. IT
APPEARS THAT THE HANDLING OF A COLD TROUGH DROPPING THROUGH THE
BERING STRAIT IS CAUSING MANY OF THE DIFFERENCES. THUS...CONFIDENCE
IN THIS PORTION OF THE FORECAST IS LOW.
.SHORT TERM FORECAST...
SOUTHCENTRAL....FOG AND LOW STRATUS WILL BE AN ISSUE ONCE AGAIN THIS
MORNING. NASA SATELLITE IMAGERY SHOWS SOME LOW CLOUDS COVERING THE
KNIK ARM ALL THE WAY UP TO THE KNIK GLACIER. FOR THE MOST PART...DRY
NORTHWEST FLOW SHOULD KEEP IT CONFINED TO THESE AREAS. BUT CERTAINLY
CANNOT RULE OUT IT CREEPING INTO THE ANCHORAGE BOWL IF THE WINDS
SHIFT JUST A BIT. OTHERWISE...GAP WINDS DRIVEN BY THE COLD AIR OVER
THE MAINLAND SHOULD PEAK THIS MORNING AND THEN START TO SUBSIDE LATER
TODAY. THESE WINDS WILL CONTINUE TO KEEP BLIZZARD CONDITIONS GOING
THROUGH THOMPSON PASS UNTIL LATE THIS AFTERNOON.
THEN ATTENTION SHIFTS TO THE WARM FRONT COMING UP WEDNESDAY
AFTERNOON. WINDS WILL SWITCH TO SOUTH THROUGH SOUTHEAST AND INCREASE
THROUGH THE AFTERNOON INTO THE OVERNIGHT HOURS. KODIAK PRECIPITATION
WILL START AS ALL SNOW AND SHOULD BE ABLE TO ACCUMULATE A FEW INCHES
BEFORE THE WARM AIR PUSHES IN AND TURNS IT TO RAIN. AS THE LOW WORKS
ITS WAY FURTHER NORTH AND EAST...WINDS WILL INCREASE THROUGH THE
PORTAGE VALLEY AND TURNAGAIN ARM. COUPLED WITH THE FALLING
SNOW...WHICH WILL LIKELY BE HEAVY AT TIMES...BLIZZARD CONDITIONS WILL
BE POSSIBLE THERE WEDNESDAY NIGHT. A BLIZZARD WATCH HAS BEEN ISSUED
TO ADDRESS THIS.
SOUTHWEST ALASKA...
OTHER THAN AN AREA OF LIGHT SNOW MOVING ACROSS THE
KUSKOKWIM DELTA THIS MORNING...SKIES ARE CLEAR OVER THE SOUTHWEST
MAINLAND. THIS PRECIPITATION WILL NOT BE ABLE TO MAKE IT MUCH FURTHER
SOUTH AS HIGH PRESSURE HOLDS OVER THE SOUTHERN MAINLAND. THE NEXT
SYSTEM TO AFFECT THE AREA WILL BE ON WEDNESDAY AND WEDNESDAY NIGHT AS
A FRONT SWINGS NORTHWARD. MOST OF THE SOUTHWEST MAINLAND WILL REMAIN
BELOW FREEZING AND SEE SNOW AS PRECIPITATION TYPE...HOWEVER WARM
ENOUGH AIR WILL MOVE INTO THE ALASKA PENINSULA TO CHANGE
PRECIPITATION TYPE TO RAIN. WE WILL BE KEEPING OUR EYE ON THE BRISTOL
BAY AREA FOR A WINTER WEATHER ADVISORY FOR SNOW ON WEDNESDAY
AFTERNOON AND EVENING.
ALEUTIANS/BERING SEA...
THE NORTH PACIFIC LOW HAS BEGUN TO AFFECT THE
ALEUTIANS THIS MORNING WITH ATKA REPORTING WIND GUSTS OVER 40 MPH.
WINDS WILL INCREASE OVER THE EASTERN ALEUTIANS AND WESTERN ALASKA
PENINSULA LATER TODAY AND TONIGHT AS THE FRONT SWINGS NORTHWARD.
WHILE PRECIPITATION WILL LIKELY START AS SNOW...WARM AIR WILL CHANGE
PRECIPITATION TYPE TO RAIN BEFORE LONG.
AS THE PRECIPITATION REACHES THE PRIBILOF ISLANDS...PRECIPITATION
TYPE IS STILL SOMEWHAT IN QUESTION...WITH TEMPERATURES WITHIN A FEW
DEGREES OF FREEZING. WINDS WILL PICK UP ALONG WITH THE
PRECIPITATION...AND IT LOOKS LIKE PRECIPITATION WILL CHANGE OVER TO
RAIN WITH TEMPERATURES CLIMBING ABOVE FREEZING. HOWEVER...EVEN IF
PRECIPITATION TYPE IS SNOW WE DO NOT EXPECT BLIZZARD CONDITIONS AT
THIS TIME DUE TO THE RELATIVELY WARM TEMPERATURES.
.LONG TERM FORECAST (SATURDAY THROUGH MONDAY)...
A MODERATE NORTH PACIFIC RIDGE WILL HOLD OVER THE EASTERN HALF OF AK
INTO THE WEEKEND. A BROAD TROUGH OVER THE BERING WILL KEEP MUCH OF
THE WESTERN HALF OF THE STATE UNDER RELATIVELY WARM AND WET SOUTHWEST
FLOW. IT DOES APPEAR THAT THIS PATTERN WILL EVENTUALLY PULL UP ENOUGH
WARM AIR TO CAUSE SNOW TO CHANGE OVER TO RAIN OR AT LEAST MIXED
PRECIPITATION FOR MOST OF THE SOUTHERN HALF OF THE STATE WITH A WARM
FRONT SATURDAY. HIGH TEMPERATURES TODAY WILL STRUGGLE TO GET OUT OF
THE SINGLE DIGITS IN MOST PLACES. THIS WILL BE QUITE THE CONTRAST TO
THE WEEKEND WHEN HIGHS SHOULD GET NEAR FREEZING FOR THE ANCHORAGE
BOWL. HOWEVER...THIS WARM UP COULD ALSO MAKE FOR VERY SLOPPY
CONDITIONS WITH ALL OF THIS FRESH NEW SNOW.
.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...BLIZZARD WARNING 131
BLIZZARD WATCH 125
MARINE...STORM WARNING 170 172 173 174 175 176 177 413 414
GALE WARNING 121 127 129 130 131 132 136 137 138 352 150 155
160 165 171 178 179 180 185 411 412
HEAVY FREEZING SPRAY 121 126 127 128 129 130 131 139 150 160
185
FIRE WEATHER...NONE
MSO/MBS DEC 13The office that day
Everything else NWS Anchorage, AK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 17, 4:00 PM AKST | Gale Warning | AFC | 12 hr | |
| Dec 17, 4:00 PM AKST | Gale Warning | AFC | 4 days | |
| Dec 17, 4:00 PM AKST | Gale Warning | AFC | 36 hr | |
| Dec 17, 4:00 PM AKST | Gale Warning | AFC | 36 hr | |
| Dec 17, 4:00 PM AKST | Small Craft Advisory | AFC | 36 hr | |
| Dec 17, 4:00 PM AKST | Storm Warning | AFC | 36 hr | |
| Dec 17, 4:00 PM AKST | Storm Warning | AFC | 36 hr | |
| Dec 17, 4:00 PM AKST | Heavy Freezing Spray Warning | AFC | 5 days | |
| Dec 17, 4:00 PM AKST | Heavy Freezing Spray Warning | AFC | 48 hr | |
| Dec 17, 4:15 PM AKST | Blizzard Watch | AFC | 11 hr | |
| Dec 18, 1:00 AM AKST | Winter Weather Advisory | AFC | 23 hr | |
| Dec 18, 2:53 AM AKST | High Wind Warning | AFC | 7 hr | |
| Dec 18, 4:00 AM AKST | Gale Warning | AFC | 12 hr | |
| Dec 18, 4:00 AM AKST | Gale Warning | AFC | 60 hr | |
| Dec 18, 4:00 AM AKST | Small Craft Advisory | AFC | 12 hr | |
| Dec 18, 4:00 AM AKST | Small Craft Advisory | AFC | 36 hr | |
| Dec 18, 4:00 AM AKST | Storm Warning | AFC | 24 hr | |
| Dec 18, 4:00 AM AKST | Storm Warning | AFC | 24 hr | |
| Dec 18, 4:00 AM AKST | Heavy Freezing Spray Warning | AFC | 12 hr | |
| Dec 18, 5:04 AM AKST | Blizzard Warning | AFC | 24 hr | |
| Dec 18, 5:04 AM AKST | Winter Weather Advisory | AFC | 24 hr |
Nearby
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.