An ice jam near Ruby caused the water levels on the Yukon River to rise significantly on the 10th, and flood stage was exceeded by 0500AKST on the 11th. 5 feet at Ruby 1000AKST on the 11th, and remained above flood stage until 2100AKST on the 13th.
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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.
An ice jam near Ruby caused the water levels on the Yukon River to rise significantly on the 10th, and flood stage was exceeded by 0500AKST on the 11th. The water level crested at 41.5 feet at Ruby 1000AKST on the 11th, and remained above flood stage until 2100AKST on the 13th. The stage of 41.5 feet was the highest on record at Ruby. The village of Ruby sits on a hill above the Yukon River, and damages were limited to two fish camps and two cabins that were inundated with 3 to 6 feet of water. Two additional cabins were damaged by ice. The cabins were located on the Novi River, with the exception of one fish camp on the Yukon River near Ruby.
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 May 10, 3:18 AM AKST, 1 hour 42 minutes earlier.
NORTHERN ALASKA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FAIRBANKS AK 418 AM AKDT MON MAY 10 2010 .DISCUSSION... ALOFT...THE UPPER LOW THAT DROPPED SOUTH ALONG THE WEST COAST THIS PAST WEEKEND IS NOW IN THE PROCESS OF JOINING FORCES WITH A NORTH PAC LOW THAT IS NEAR 50N 165W EARLY THIS MORNING. THE ENERGY MERGES TO FORM A LOW CENTER NEAR COLD BAY TONIGHT...AND THIS UPPER LOW WILL THEN MEANDER AROUND AND REMAIN CAMPED OUT ACROSS THE BERING SEA FOR THE FORESEEABLE FUTURE. DOWNSTREAM OF THE LOW THERE WILL BE VARYING DEGREES OF RIDGING ACROSS THE INTERIOR THIS WEEK. SURFACE...WEAK AREAS OF LOW PRESSURE FROM THE MIDDLE YUKON VALLEY TO THE KUSKOKWIM DELTA WILL GRADUALLY BE ABSORBED BY A DEEPENING LOW THAT IS EVIDENT ON SAT PICTS ABOUT 300 MILES SOUTH OF COLD BAY EARLY THIS MORNING. THE LOW WILL CONTINUE TO DEEPEN TODAY AND IS EXPECTED TO BE NEAR SAND POINT BY 00Z WED. A LOW LEVEL THERMAL TROUGH WILL REMAIN IN PLACE TODAY FROM THE SOUTHERN YUKON EAST ACROSS THE ALASKA RANGE. AN ARCTIC FRONT WILL REMAIN QUASI-STATIONARY ALONG THE BROOKS RANGE THE NEXT COUPLE OF DAYS. NORTH SLOPE...STATUS HAS PUSHED BACK IN FROM THE NE ALONG JUST ABOUT ALL OF THE COASTAL PLAIN ALONG WITH FLURRIES AND AREAS OF FOG. SOMEWHAT STRONGER NE WIND ALONG THE WESTERN ARCTIC COAST...WITH FAIRLY LIGHT WIND ELSEWHERE THROUGH TONIGHT. THE GRADIENT TIGHTENS UP SOME FOR THE REMAINDER OF THE ARCTIC COAST ON TUE AS SFC PRESSURES FALL IN THE INTERIOR AND SOME WEAK RIDGING BUILDS IN OFFSHORE. INTERIOR...LOW TOPPED CONVECTION EXPECTED THIS AFTERNOON ALONG OR JUST TO THE NORTH OF THE LOW LEVEL THERMAL TROUGH. NO LIGHTNING STRIKES WERE NOTED SUN PM...AND ONLY A COUPLE STRIKES EAST OF THE BORDER SAT PM. CONDITIONS LOOK A BIT MORE UNSTABLE TODAY WITH INCREASING SW FLOW AND AN INCREASE IN THE PRECIPITABLE H20. THE PRECIPITABLE H20 AT PAFA HAS RISEN FROM LESS THAN A QUARTER INCH TO NEARLY 1/2 INCH IN THE LAST 24 HOURS. A FEW LIGHTNING STRIKES ARE POSSIBLE THIS AFTERNOON...MAINLY ACROSS THE FORTYMILE COUNTRY. ELSEWHERE ACROSS THE INTERIOR THERE WILL BE SOME SCATTERED SHOWERS TODAY...WITH SOME STEADIER RAIN AND SNOW ACROSS THE NW INTERIOR WHERE AN INCH OR TWO OF WET SLUSHY SNOW IS POSSIBLE ON THE HILLS. MODERATE CHINOOK FLOW SETS UP BY LATER TONIGHT INTO TUESDAY ENDING THE PRECIP. CHANCES FOR THE CENTRAL AND EASTERN INTERIOR. THE WIND IS EXPECTED TO REMAIN SUB- ADVISORY...BUT WILL LIKELY BECOME GUSTY IN THE FAVORED WINDY SPOTS/PASSES OF THE AK RANGE. WEST COAST...THE BEST CHANCE OF PRECIPITATION WILL BE ACROSS THE SW ZONES ON TUE AS THE PAC LOW MOVES NORTH AND AREAS OF MOISTURE ROTATE AROUND THE LOW. FOR THE MAJORITY OF THE AREA MOST OF THE PRECIPITATION WILL BE IN THE FORM OF RAIN. SOME RAIN/SNOW MAY MAKE IT AS FAR NORTH AS THE SEWARD PENINSULA BY TUE NIGHT. IN THE MID-RANGE...THERE IS DECENT MODEL AGREEMENT ON THE LONG WAVE TROUGH ANCHORED IN THE BERING SEA AND SOME SEMBLANCE OF A RIDGE FROM BC NWWD INTO EASTERN ALASKA. THE 00Z SUN RMOP VALUES WERE NOT ESPECIALLY IMPRESSIVE. HOWEVER...NEARLY ALL 00Z SUN NAEFS ENSEMBLE MEMBERS KEEP A FAIRLY DEEP LOW ALOFT SOMEWHERE IN THE BERING SEA...WITH SOME MEMBERS EXPANDING THE LOW IN THE NORTHERN GULF OF ALASKA. THE SENSIBLE WEATHER FROM THIS PATTERN SHOULD BE FAIRLY BENIGN...WITH STRATIFORM PRECIP LARGELY CONFINED TO SW ZONES. RIDGE INTO THE EASTERN INTERIOR WILL MOSTLY NOT BE STRONG ENOUGH TO COMPLETELY SUPPRESS CONVECTION...BUT RAINFALL AMOUNTS WOULD BE LIKELY TO BE QUITE LOW. TEMPS MAINLY NEAR TO BELOW NORMAL...THOUGH NOT DRAMATICALLY SO. && .FIRE WEATHER...VERY ISOLATED T-STORMS POSSIBLE THIS AFTERNOON ACROSS THE FORTYMILE COUNTRY...BUT ODDS FAVOR FEW OR NO LIGHTNING STRIKES. IF ANY T-STORMS DEVELOP THEY WILL BE WET. A CHINOOK SETS UP LATER TONIGHT AND TUE WITH GUSTY SLY WINDS IN THE AK RANGE PASSES AND LIKELY LOW ENOUGH RH'S BY TUE PM FOR SOME FIRE WEATHER CONCERNS. && .HYDROLOGY...AS OF SUNDAY PM THE BREAK-UP FRONT ALONG THE YUKON RIVER WAS MIDWAY BETWEEN RUBY AND GALENA. NO WATCHES OR WARNINGS ARE CURRENTLY IN EFFECT. && .AFG WATCHES/WARNINGS/ADVISORIES... BRISK WIND ADVISORY FOR PKZ210-PKZ220-PKZ225-PKZ230. && CB/RT MAY 10
The national radar mosaic for the moment the first event began.
1 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, May 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: 222974.