A severe thunderstorm moved through the Kuskokwim Delta possibly producing large hail and strong gusty wind near 60 mph.
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The episode as NWS AFC wrote it up.
A severe thunderstorm moved through the Kuskokwim Delta possibly producing large hail and strong gusty wind near 60 mph.
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 Anchorage, AK wrote its last area forecast discussion before the first event at Jul 5, 11:00 AM AKST, 10 hours 48 minutes earlier.
AREA FORECAST DISCUSSION SOUTHCENTRAL AND SOUTHWEST ALASKA 500 PM ADT THU JUL 5 2007 .MODEL DISCUSSION... MODELS ARE GENERALLY IN GOOD AGREEMENT WITH SOME DIVERGENCE OF SOLUTIONS AFTER FRIDAY NIGHT. THE GFS STILL APPEARS TO BE THE BETTER MODEL BECAUSE IT HAS GOOD RUN-TO-RUN CONSISTENCY. .ANALYSIS AND UPPER LEVELS... THE UPPER AIR PATTERN HAS CHANGED MUCH OVER THE LAST FEW DAYS WITH THE MAIN UPPER HIGH OVER THE CHUKCHI SEA AND THE MAIN UPPER LOW NEAR THE SOUTHERN GULF OF ALASKA. A NEW UPPER LOW OVER THE WESTERN ALEUTIANS HAS OPENED A TROUGH ALONG THE ALEUTIAN CHAIN. AT THE SURFACE...THE THERMAL TROUGH REMAINS OVER THE CENTRAL AND SOUTHWEST INTERIOR. THE STABILITY INDEXES ARE STILL FAIRLY LOW OVER THE KUSKOKWIM VALLEY AND THE KUSKOKWIM DELTA WITH THUNDERSTORMS MOSTLY DEVELOPING OVER THESE AREAS LATE TODAY. THE LOW OVER THE SOUTHERN GULF HAS WEAKENED AND IT APPEARS THAT THE LAST IN THE SERIES OF EASTERLY WAVES IS MOVING THROUGH PRINCE WILLIAM SOUND AND THE KENAI PENINSULA. THE RIDGE ALONG THE GULF COAST HAS GOTTEN A BIT STRONGER SINCE YESTERDAY. THE AREA OF HIGH PRESSURE PERSISTS OVER THE BERING SEA. .SHORT TERM FORECAST... SOUTHCENTRAL ALASKA... THE STAGNANT PATTERN OVER THE GULF IS FINALLY BREAKING. THE LOW OVER THE SOUTHERN GULF WILL CONTINUE TO WEAKEN AND WILL DISSIPATE BY SATURDAY WHILE THE RIDGE ALONG THE GULF COAST WILL STRENGTHEN AND SPREAD IN THE GULF. DRIER AIR FROM WESTERN CANADA SHOULD BREAKUP SOME OF CLOUDS OVER SOUTHCENTRAL FRIDAY WITH SCATTERED SHOWERS DEVELOPING IN THE LATE AFTERNOON AND EVENING. SATURDAY SHOULD BE SIMILAR TO FRIDAY. SOUTHWEST ALASKA... THE THERMAL TROUGH OVER THE KUSKOKWIM DELTA AND NORTHWESTERN KUSKOKWIM VALLEY WILL REMAIN OVER THE CENTRAL TO NORTHERN SECTIONS OF SOUTHWEST ALASKA THROUGH SATURDAY. STABILITY INDEXES WILL RISE THROUGH SATURDAY WITH SHOWERS AND THUNDERSTORMS ACTIVITY LESSING OVER THE NEXT FEW DAYS. BERING SEA AND ALEUTIANS... THE BERING SEA HIGH WILL REMAIN OVER THE AREA THROUGH SATURDAY WHICH WILL KEEP THE TRACK OF ANY NEW WEATHER SYSTEM SOUTH OF THE ALEUTIANS. NO SIGNIFICANT WEATHER IS EXPECTED IN THIS AREA. .LONG TERM FORECAST... THE OVERALL PATTERN WILL BEGIN TO CHANGE OVER THE NEXT 5 DAYS. THE UPPER HIGH OVER THE THE CHUKCHI SEA WILL MOVE EAST ACROSS NORTHERN ALASKA AND WILL LINK UP WITH A RIDGE OVER WESTERN CANADA TUESDAY. THE UPPER LOW OVER THE SOUTHERN GULF WILL WEAKEN AND MOVE INTO BRITISH COLUMBIA SUNDAY. ANOTHER LOW WILL OVER THE WESTERN ALEUTIANS WILL MOVE EAST AND BECOME NEARLY STATIONARY SOUTH OF KODIAK ISLAND TUESDAY. THIS OPEN MOST OF THE SOUTHERN MAINLAND UP TO A MOIST SOUTH TO SOUTHEAST FLOW COMING OFF THE GULF OF ALASKA BY THE BEGINNING OF NEXT WEEK. .AER/ALU...WATCH/WARNING SUMMARY PUBLIC...NONE. MARINE...NONE. FIRE WEATHER...NONE. NM JUL 07
The national radar mosaic for the moment the first event began.
1 thunderstorm wind. Local standard time, as filed.
The severity of this storm is estimated from Radar returns and the magnitude of wind observed near the thunderstorm. While the actual observed wind was not 60 mph, it is reasonable to assume the wind did reach 60 mph due to the sparse data network in this region.
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, July 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: 31910.