A thunderstorm remained nearly stationary across the Elliot Highway between mile markers 70 and 85. The storm produced flash flooding at mile marker 83.
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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 AFG wrote it up.
A thunderstorm remained nearly stationary across the Elliot Highway between mile markers 70 and 85. The storm produced flash flooding at mile marker 83. Doppler radar estimated that between 4 and 5 inches of rain fell. The highway was washed out with significant debris across the highway. It was estimated by the DOT that the water was likely between 1 and 2 feet deep when the flash flood occurred. A motorist crossed this section of the highway a few hours after the heavy rain ended, and observed that water and debris were still gushing across the highway from a culvert along the side of the road.
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 Fairbanks, AK wrote its last area forecast discussion before the first event at Jun 30, 1:42 PM AKST, 6 hours 18 minutes earlier.
NORTHERN ALASKA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FAIRBANKS AK 242 PM AKDT WED JUN 30 2010 .DISCUSSION... UPPER AIR: MODELS IN AGREEMENT THROUGH SAT. DEFORMATION ZONE OVER WESTERN INTERIOR WASHES OUT BY THU MORNING. LOW PRESSURE OVER SOUTHEAST BERING SEA ROTATES OVER THE PRIBILOFS. RIDGE OVER BEAUFORT SEA WILL WEAKEN THU. NORTH POLE LOW WILL REMAIN NORTH OF 80N. SURFACE: 1003 MB MACKENZIE BAY LOW SHOULD WEAKEN THU AS 1018 MB HIGH OVER ARCTIC OCEAN BUILDS TO 1022 MB. THERMAL TROUGH OVER NORTHERN INTERIOR WILL DRIFT SOUTH TO THE CENTRAL INTERIOR ON THU. 1002 MB LOW NEAR PRIBILOFS WILL PERSIST THROUGH SAT. WEAK LOW WILL FORM OVER THE NORTHERN GULF OF ALASKA THU NIGHT THEN DISSIPATE SAT. NORTH SLOPE: MESOSCALE NORTH WIND OVER THE EASTERN BEAUFORT SEA COAST WILL TAKE ON A LARGER SCALE DIRECTION ON THU AS MACKENZIE BAY LOW COLLAPSES DUE TO HIGH PRESSURE BUILDING OVER THE ARCTIC. THIS WILL END THE LIGHTING STRIKES OVER ZONE 204 WITH A RATHER DRY PERIOD AND BOUTS OF STRATUS CONTINUING...AND POSSIBLE SMALL CRAFT ADVISORIES DEVELOPING BY FRI. WEST COAST: STUBBORN SOUTHEAST BERING SEA LOW AND THERMAL TROUGH EXTENDING WEST FROM THE INTERIOR WILL PROVIDE MOISTURE AND ENERGY TO THE SEWARD PENINSULA...NULATO HILLS AND ADJOINING AREAS TO FUEL AFTERNOON AND EVENING CONVECTION THROUGH SAT. GRADIENT OFF OF BERING SEA LOW IS NOT EXPECTED TO BE TIGHT ENOUGH FOR MARINE ADVISORIES. INTERIOR: ISOLATED AFTERNOON AND EVENING THUNDERSTORMS WILL PERSIST THROUGH THE WEEKEND. SEE FIRE WEATHER. RIVER RISES WILL ALSO BE AN ISSUE. SEE HYDROLOGY. COASTAL HAZARD POTENTIAL DAYS 3 AND 4...NONE && .FIRE WEATHER...RH'S WILL CONTINUE ABOVE 30%...WITH HIGHEST RH'S TO 60+% OVER THE ALASKA RANGE AND SOUTHEAST INTERIOR. THIS EVENING... THUNDERSTORMS WILL BE MOST PROMINENT OVER THE NORTHERN AND WESTERN INTERIOR. FOR THU PM...NAM20 LI'S OF ZERO TO -4C WILL BE PREVALENT OVER THE ENTIRE INTERIOR...THOUGH THERE WILL CONTINUE TO BE ENOUGH MOISTURE TO KEEP THE THUNDERSTORMS WET. && .HYDROLOGY...OBSERVATIONS FROM THE CHESANA AND NEBESNA RIVERS SHOW A POSSIBLE FALL ALREADY UNDERWAY. THE FORECAST CREST FOR THE TANANA RIVER AT BIG DELTA MAY BE SIGNIFICANTLY IMPACTED BY THIS NEW INFORMATION. && .AFG WATCHES/WARNINGS/ADVISORIES... FLOOD WARNING FOR PARTS OF ZONES 223-224-226. && JUN 10 DA
The national radar mosaic for the moment the first event began.
1 flash flood. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Alaska in 2010Every state in 2010This day in weather historyWarnings in Alaska, June 2010
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: 228995.