A Storm force Low developed to 990 MB just off Sitka Thursday 9/20 late that night. The Low further developed to 984 MB over Juneau at 984 MB at 3 AM AKST Friday 9/21 with a very strong front extending through the Panhandle.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS AJK wrote it up.
A Storm force Low developed to 990 MB just off Sitka Thursday 9/20 late that night. The Low further developed to 984 MB over Juneau at 984 MB at 3 AM AKST Friday 9/21 with a very strong front extending through the Panhandle. This storm rapidly dissipated midday Friday as the center moved into the Coast Mountains to the East of the Panhandle.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Juneau, AK wrote its last area forecast discussion before the first event at Sep 21, 12:30 AM AKST, 30 minutes earlier.
SOUTHEAST ALASKA FORECAST DISCUSSION 630 AM ADT FRI SEP 21 2007 .SYNOPSIS... .SHORT RANGE...WEAK SFC LOW OVER NE GULF WILL DISSIPATE BY THIS EVENING. MID-LEVEL SHORTWAVE TROF WILL DROP SE THRU THE AREA TODAY...AS RIDGING BUILDS OVER THE ERN GULF THRU TONIGHT. LOW PRESSURE WILL MOVE NE TO THE FAR WRN GULF TONIGHT...WITH A WARM FRONT EXTENDING FROM TRIPLE POINT OVER THE CENTRAL GULF INTO THE FAR SE GULF. MAIN FORECAST CONCERN FOR TODAY WILL BE HOW MUCH OF AN IMPACT THE SHORTWAVE MOVING THRU THE AREA WILL HAVE. MID-LEVEL CLOUDS FROM IT NOW ENTERING NRN SE AK...AND THESE SHOULD MOVE SE THRU MAINLY THE ERN INNER CHANNELS TODAY. PLENTY OF LOW LEVEL MOISTURE OVER THE AREA WITH LOTS OF LOWER SC AROUND...AND AS SHORTWAVE MOVES THRU...THINK THERE MAY BE SPOTTY SHOWERS. THESE SHOWERS SHOULD DIMINISH OVER THE N THIS AFTERNOON BEHIND THE SHORTWAVE...WITH SOME DRIER LOW LEVEL AIR MOVING IN. AM GOING WITH LOW-MID RANGE CHANCE POPS FOR MOST OF THE AREA TO HANDLE THIS SYSTEM...EXCEPT ONLY GOING SLIGHT CHANCE FAR N PART. BECAUSE MODELS KEEP A WEAK ONSHORE FLOW GOING AROUND 850 MB LEVEL THRU THE DAY...AM KEEPING SKIES OVER THE LAND AREAS AT LEAST MOSTLY CLOUDY. FOR TONIGHT...AS RIDGE MOVES IN...FLOW WILL BACK AROUND TO SW AND THIS SHOULD INCREASE LOWER CLOUDS AGAIN. LOW LEVELS WILL BE WEAKLY UNSTABLE SO EXPECT A FEW SHOWERS TO REMAIN OVER THE AREA...WITH SOME INCREASE IN THE SHOWERS LATER TONIGHT AS A WEAK LOWER LEVEL VORT TROF MOVES NE ACROSS THE AREA. THINK THE STEADIER RAIN AND STRONGER WINDS WITH THE APPROACHING FRONT WILL REMAIN OVER THE GULF THRU LATE TONIGHT...WITH AT LEAST SCA LEVEL WINDS LIKELY BY LATE TONIGHT OVER THE OFFSHORE WATERS AND N-CENTRAL GULF COASTAL WATERS. OTHERWISE...WILL KEEP SCA SEAS GOING OVER THE GULF WITH 8-13 FT SEAS BEING REPORTED BY THE BUOYS...AND AKWAVE KEEPS THEM MOSTLY ABOVE 8 FT THRU TONIGHT. THE FAR N GULF MAY SEE A PERIOD OF BELOW SCA SEAS THIS AFTERNOON AND EVENING BEFORE THE STRONGER WINDS ARRIVE AND KICK UP HIGHER SEAS AGAIN TOWARD DAYBREAK. RWT .LONG RANGE...SEVERAL WEAK UPPER LEVEL SHORT WAVES MOVE OVER THE PANHANDLE ON MONDAY...TUESDAY...AND THURSDAY MORNING FOLLOWED BY A LARGE LONG WAVE TROUGH SOUTHEAST OF AN UPPER LOW CENTERED OVER THE NORTHERN GULF LATE ON 01 OCT. THROUGHOUT THE LONG RANGE FORECAST PERIOD...NAM IS MAINTAINING THE HIGHEST AMPLITUDE IN THE UPPER LEVEL FEATURES BUT IS SLIGHTLY SLOWER THAN GFS FROM 24/12Z THROUGH THE END OF THE NAM RUN. UKMET IS THE SLOWEST IN THE UPPER LEVELS FROM 24/12Z ON AND THE MOST ZONAL...SOUNDS SUSPICIOUS. ENSEMBLE SPREAD NOT TOO BAD WITH THE GREATEST OCCURRING SUNDAY NIGHT INTO MONDAY SOUTH OF THE PANHANDLE WEST OF THE DIXON ENTRANCE. DIFFERENCES MOSTLY TO DO WITH THE STRENGTH OF THE UPPER TROUGH RATHER THAN THE POSITIONING OF THE TROUGH-RIDGE PAIR. ENSEMBLE SPREAD INCREASES BOTH IN AMPLITUDE AND SPEED OVER THE PANHANDLE BY 27/00Z. MAXIMUM SPREAD OVER THE SOUTHERN HALF OF THE PANHANDLE BY 27/06Z AND AGAIN 28/18Z. AT THE SURFACE...QUITE A SPREAD OF SOLUTIONS STILL BEING OFFERED BY THE VARIOUS MODELS WITH REGARD TO THE SYSTEM DEVELOPING SOUTH OF THE PENINSULA AT THIS TIME BUT NOT AS PRONOUNCED AS EARLIER. CENTRAL PRESSURES ALL WITHIN 4MB AND LOCATION SPREAD IS DOWN TO 180NM. NAM FARTHEST SOUTH AND GFS IS FARTHEST EAST WITH UKMET TO THE NORTH AND WEST. HI RES ECMWF IS STAMPING A DOUBLE LOW WITH THE SOUTHERN LOW ON TOP OF THE NAM LOW. NUDGED EXISTING GRIDS TO CURRENT GFS40 60 PERCENT THROUGH SUNDAY AND 50 PERCENT THEREAFTER. A WET PATTERN IN STORE WITH SOME RELIEF FOR THE OUTER COAST TUESDAY AFTERNOON AND EVENING AND MOST LOCATIONS ON THURSDAY. BUT ANOTHER WELL ORGANIZED FRONT LOOKS LIKE IT WILL ARRIVE ALONG THE PANHANDLE BY FRIDAY AFTERNOON. TOO SOON TO SAY HOW FAST THIS FRONT WILL MOVE THROUGH THE AREA SO CANNOT SAY WITH CONFIDENCE THAT NEXT WEEKEND WILL BE DRY. CURRENTLY CALLING FOR CHANCE OR BETTER. GALE FORCE WINDS EXPECTED IN THE COASTAL MARINE ZONES BEGINNING THIS SUNDAY MORNING AND SPREADING SOUTH TO THE DIXON ENTRANCE THROUGH THE DAY AS THE LOW COMES ASHORE VICINITY YAKUTAT SUNDAY NIGHT. INNER CHANNELS WILL SEE PERIODS OF STRONG SMALL CRAFT CONDITIONS ON SUNDAY WITH CONDITIONS MODERATING ON MONDAY. ANOTHER ROUND OF SMALL CRAFT WINDS ON THE CENTRAL COAST AND CENTRAL AND SOUTHERN INNER CHANNELS AGAIN ON TUESDAY. FINALLY...THE FRONT NEXT FRIDAY WILL BRING EXTENSIVE STRONG SMALL CRAFT CONDITIONS ALONG THE OUTER COAST WITH GALES FROM CAPE DECISION TO CAPE FAIRWEATHER POSSIBLE. NO SNOW IN THE FORECAST YET BUT SNOW LEVELS ARE BEGINNING TO COME DOWN. FCF .AJK...WATCHES/WARNINGS/ADVISORIES PUBLIC...NONE MARINE...SCA...PKZ022-041>043-051-052
3 high wind. Local standard time, as filed.
Cape Decision (CDEA2) had observations of sustained West wind greater than 60 MPH from 0100 AKST Friday 9/12 to 0700 AKST that morning.
Cape Decision (CDEA2) had observations of sustained West wind greater than 60 MPH from 0100 AKST Friday 9/12 to 0700 AKST that morning. Lincoln Rock (LCNA2) had a 70 MPH measured sustained wind at 0100 AKST 9/21 and peak winds as high as 98 MPH up to 0600 AKST. The peak wind at 0600 AKST was 60 MPH.
Cape Decision (CDEA2) had observations of sustained West wind greater than 60 MPH from 0100 AKST Friday 9/12 to 0700 AKST that morning. Lincoln Rock (LCNA2) had a 70 MPH measured sustained wind at 0100 AKST 9/21 and peak winds as high as 98 MPH up to 0600 AKST. The peak wind at 0600 AKST was 60 MPH.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Alaska in 2007Every state in 2007This day in weather historyWarnings in Alaska, September 2007
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 54590, 54591, 54592.