Alaska, 2015Winter Storm in Alaska, January 6 to 7, 2015
January 6 to 7, 2015 · NWS AJK · 2 events in 2 counties and zones
Another case of warm moist air from the south overrunning north cooler air trapped at low levels in the northern panhandle. This caused snow north of Frederick Sound on the night of Jan 6th and the snow persisted for much of this area on the 7th.
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 2
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.
Another case of warm moist air from the south overrunning north cooler air trapped at low levels in the northern panhandle. This caused snow north of Frederick Sound on the night of Jan 6th and the snow persisted for much of this area on the 7th. Heavier amounts occurred for Juneau and Tenakee-Hoonah. Major commercial airline flights were not disrupted but smaller aircraft were grounded and snow removal operations kept a good pace with the snowfall rate. A few instances of freezing rain or freezing drizzle were reported.
What forecasters said that day
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 Jan 6, 4:14 PM AKST, 6 hours 32 minutes earlier.
Area forecast discussion, Jan 6, 4:14 PM AKST, 6 hours 32 minutes before
SOUTHEAST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JUNEAU AK
414 PM AKST TUE JAN 6 2015
.SHORT TERM...A FRONT IS MOVING NORTH OVER THE EASTERN GULF AND
SOUTHEAST ALASKA, PUSHING WARM, MOIST AIR UP AND OVER A VERY COLD
SURFACE LAYER. LIGHT FREEZING RAIN STILL A CONCERN, BUT THE MAJOR
WEATHER IMPACT WILL BE ACCUMULATING SNOWFALL OVER THE CENTRAL AND
NORTHERN PORTIONS OF THE PANHANDLE. STRONG NORTHEASTERLY OUTFLOW
WINDS WILL ACT TO KEEP THE AIR COLUMN DRY AND INHIBIT
PRECIPITATION FROM REACHING THE GROUND. OUTFLOW WINDS WILL ALSO
KEEP STRONG WINDS GOING ALONG THE KLONDIKE HIGHWAY AND STORM FORCE
WINDS OVER LYNN CANAL. ALSO HAVE A WIND CHILL ADVISORY OUT FOR THE
KLONDIKE DUE TO A COMBINATION OF THE COLD AIR TEMPS AND STRONG
WINDS. OCCASIONAL GUSTS TO 40 MPH POSSIBLE IN JUNEAU, BUT HAVE NOT
HEADLINED THE FORECAST FOR STRONG WINDS.
TOOK A VERY CLOSE LOOK AT TEMPERATURES AS WELL AS DEW POINTS, QPF
AND POP TODAY IN ORDER TO EVALUATE THE WINTER STORM WATCH. THE
FRONT LOOKS LIKE IT IS MAKING FASTER PROGRESS THAN ORIGINALLY
EXPECTED, THUS HAVE BEGUN THIS EVENT 6-9 HOURS EARLIER THAT
ORIGINALLY FORECAST. TOTAL SNOW ACCUMULATIONS LESS THAN ORIGINALLY
EXPECTED, PROBABLY A RESULT OF THE MID LEVEL DRYING FROM COLD, DRY
CONTINENTAL OUTFLOW. END RESULT HERE IS A WINTER WEATHER ADVISORY
FOR HAINES, GUSTAVUS (4 TO 6 INCHES), AND JUNEAU (5 TO 8 INCHES)
OVER THE 24 HOUR TIME FRAME FROM THIS EVENING TO TOMORROW EVENING
WEATHER ADVISORY FOR PEAK SNOWFALL RATES RUNS FROM MIDNIGHT TONIGHT
TO NOON TOMORROW.
USED PRIMARILY NAM FOR UPDATES TO PRESSURE AND WIND FOR THE SHORT
TERM EXCEPT FOR THE VERY END. PREFERRED GEM HERE DUE TO NAM
HOLDING ON TO A WEAKENING LOW OVER THE EASTERN GULF A LITTLE TOO
LONG. POP AND QPF ALSO FROM NAM TODAY. TWEAKS TO EXISTING
TEMPERATURE AND DEWPOINT GRIDS VERY MINOR. OVERALL FORECAST
CONFIDENCE IS AVERAGE.
.LONG TERM...AS THE MAIN PRECIPITATION ACTION ARRIVES TONIGHT,
RIDGING WILL BEGIN TO DRY SOUTHEAST ALASKA BEGINNING LATE
WEDNESDAY. TWO THINGS, FIRST, UPWARD MOTION WILL LARGELY BE NIXED
WEDNESDAY NIGHT THUS MITIGATING PRECIPITATION CHANCES, SNOW FOR
THE NORTH AND RAIN FOR THE SOUTH. IN ADDITION, BUILDING NORTHWEST
FLOW ON THE FRONT SIDE OF THE RIDGE BEHIND THE COAST MOUNTAINS
WILL HELP REINFORCE COLD AIR ON THE OTHER SIDE OF THE RANGE. THIS
WILL STRENGTHEN HIGH PRESSURE AND FLEX, IF YOU WILL, THE PRESSURE
GRADIENTS ACROSS THE MOUNTAINS. OUTFLOW WINDS WILL ALSO HELP
CURTAIL PRECIPITATION CHANCES, BUT ALSO KEEP RESIDUAL PRECIP
LARGELY SNOW. IT REMAINS TO BE SEEN HOW STRONG WINDS WILL BE OVER
SALISBURY RIDGE, BUT THE POTENTIAL IS CERTAINLY THERE FOR STRONG
WIND. AND CANNOT RULE OUT THE POSSIBILITY OF HIGH WIND GUSTS.
HOWEVER, AT THIS TIME, NOT SEEING A TRIGGER MECHANISM TO BRING THE
WINDS TO THE SURFACE NEAR DOWNTOWN JUNEAU. WITH SOME STABILIZING
CONDITIONS, RESIDUAL MOISTURE MAY YIELD A BIT OF DRIZZLE, WHICH
DURING SUB-FREEZING TEMPERATURES WILL LIKELY BE FREEZING AT THE
TIME. THIS HAPPENS RARELY IN SOUTHEAST, SO GOING WITH ONLY THE
POSSIBILITY. STORM FORCE WINDS FOR LYNN CANAL POSSIBLY MAY BE A
SLIGHTLY OVERDONE THROUGH THURSDAY, AS THE GRADIENT IS STRONGEST
FROM NORTHEAST TO SOUTHWEST DURING THIS TIME FRAME, BUT RESISTED
URGE TO CHANGE IT AS CONFIDENCE LOW WITH SO MUCH COLD AIR
INVOLVED.
AS THE RIDGE AMPLIFIES, TO THE SOUTH A LOW WILL PUSH NORTHWARD AND
IRONICALLY HELP KEEP THINGS DRY FOR SOUTHEAST FROM THURSDAY INTO
FRIDAY, AS THIS INDUCES A LITTLE MORE OFFSHORE GRADIENT IN THE
MID-LEVELS. AS THIS SYSTEM GRACES OUR PRESENCE FOR THE WEEKEND, IT
WILL HELP RE-WELCOME STORMINESS FROM THE SOUTH. THIS WILL WARM
THINGS ENOUGH TO CHANGE PRECIPITATION TO RAIN BY NEXT WEEK.
KEPT CHANGES TO A MINIMUM. USED A LITTLE 12Z GFS AND 18Z NAM FOR
ANY CHANGES MADE WEDNESDAY NIGHT/THURSDAY. USED WPC TO INCREASE
WINDS SUNDAY THROUGH NEXT WEEK. FORECAST CONFIDENCE AVERAGE FOR
PERIOD.
&&
.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...WINTER WEATHER ADVISORY FROM MIDNIGHT TONIGHT TO NOON AKST
WEDNESDAY FOR AKZ019-020-025.
WINTER STORM WARNING UNTIL 6 PM AKST WEDNESDAY FOR AKZ029.
STRONG WIND THROUGH WEDNESDAY AFTERNOON FOR AKZ018.
WIND CHILL ADVISORY UNTIL 6 PM AKST WEDNESDAY FOR AKZ018.
MARINE...STORM WARNING FOR PKZ012.
GALE WARNING FOR PKZ013-021-022-031-034>036-041>043.
SMALL CRAFT ADVISORY FOR PKZ011-032-033-051>053.
&&
FRITSCH/ADKINS
VISIT US AT HTTP://WWW.WEATHER.GOV/JUNEAUWinter Storm, Eastern Chichagof Island
- When
- January 6, 10:46 PM AKST to January 7, 12:00 PM AKST
- Where
- Eastern Chichagof Island forecast zone
- Reported by
- COOP Observer
Hoonah cooperative observer measured 8.4 inches of new snow that had fallen overnight. This was the first significant snowfall in weeks. Snow rapidly tapered off during the morning. No damage reported.
Winter Storm, Juneau Borough and Northern Admiralty Island
- When
- January 6, 10:46 PM AKST to January 7, 12:00 PM AKST
- Where
- Juneau Borough and Northern Admiralty Island forecast zone
- Reported by
- Trained Spotter
Amounts 4 to 10 inches of new snow fell over the Juneau area overnight on Jan 6th. Snow rapidly tapered off on the morning of the 7th. Plows easily kept up with snow removal. There were isolated reports of freezing rain or freezing drizzle. No damage was reported.
- Winter Storm
- A storm that brought snow, sleet or freezing rain at warning levels, usually over several hours or days.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Winter Weather in New Jersey, January 6, 20151 death · 5 injured · 8 events
- Winter Weather in Pennsylvania, January 6, 20151 death · 5 events
- Avalanche in Colorado, January 6, 20151 death · 1 event
- Lake-Effect Snow in Pennsylvania, January 6 to 7, 2015$450,000 · 3 events
- Winter Weather in Delaware, January 6, 20159 injured · 4 events
- Lake-Effect Snow in New York, January 6 to 7, 2015$85,000 · 3 events
- Lake-Effect Snow in New York, January 6 to 7, 2015$55,000 · 3 events
- Extreme Cold in Iowa, January 6 to 7, 201531 events
- Extreme Cold in Minnesota, January 6 to 7, 201524 events
- Extreme Cold in North Dakota, January 6 to 7, 201518 events
- Heavy Snow and Winter Weather in Virginia, January 6, 201516 events
- Winter Weather in Maryland, January 6, 201515 events
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: 547547, 547548.