A strong winter system plowed into Eastern Oregon and Southwest Idaho leaving pockets of heavy snow in the Treasure Valley of Idaho and Oregon.
Every event with a place to put it; 3 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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 BOI wrote it up.
A strong winter system plowed into Eastern Oregon and Southwest Idaho leaving pockets of heavy snow in the Treasure Valley of Idaho and Oregon.
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 Boise, ID wrote its last area forecast discussion before the first event at Nov 30, 3:08 PM MST, 8 hours 52 minutes earlier.
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</html>HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BOISE ID 622 AM MST TUE NOV 30 2010 IDZ011>016-028>030-033-ORZ061>064-011330- WEST CENTRAL MOUNTAINS-LOWER TREASURE VALLEY ID-BOISE MOUNTAINS- UPPER TREASURE VALLEY-SOUTHWEST HIGHLANDS-WESTERN MAGIC VALLEY- CAMAS PRAIRIE-OWYHEE MOUNTAINS-SOUTHERN TWIN FALLS COUNTY- UPPER WEISER RIVER-HARNEY COUNTY-BAKER COUNTY-MALHEUR COUNTY- LOWER TREASURE VALLEY OR- 622 AM MST TUE NOV 30 2010 /522 AM PST TUE NOV 30 2010/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL IDAHO...SOUTHWEST IDAHO...WEST CENTRAL IDAHO...NORTHEAST OREGON AND SOUTHEAST OREGON. .DAY ONE...TODAY AND TONIGHT SNOW WILL SPREAD FROM SOUTHEAST OREGON WHERE IT HAS ALREADY BEGAN THIS TUESDAY MORNING THROUGH SOUTHWEST IDAHO LATE THIS AFTERNOON. EXPECT SNOW COVERED ROADS BY THIS EVENING IN BAKER...HARNEY AND MALHEUR COUNTY. SNOW WILL INCREASE TONIGHT ESPECIALLY OVER SW IDAHO. EXPECT SNOW COVERED ROADS FOR THE WEDNESDAY MORNING SCHOOL BUS RUNS AND FOR THE MORNING COMMUTE ACROSS SW IDAHO. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SNOW WILL BEGIN TO DECREASE OVER SE OREGON WEDNESDAY MORNING. EXPECT SNOW COVERED ROADS FOR THE WEDNESDAY MORNING SCHOOL BUS RUNS AND FOR THE MORNING COMMUTE ACROSS SW IDAHO. SNOW WILL DECREASE OVER SW IDAHO VALLEYS IN THE LATE MORNING AND EARLY AFTERNOON...AND OVER THE MOUNTAINS IN THE AFTERNOON. A ROUND OF MODERATE TO HEAVY SNOW IN THE MOUNTAINS IS EXPECTED TO DEVELOP IN EASTERN OREGON LATE WEDNESDAY NIGHT AND LAST FOR 24 HOURS. HEAVY SNOW IS ANTICIPATED IN THE IDAHO MOUNTAINS THURSDAY THROUGH FRIDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER VIA ESTABLISHED PROCEDURES.
The national radar mosaic for the moment the first event began.
3 heavy snow. Local standard time, as filed.
Reports of 5 to 7 inches of snowfall were received from spotters and coop observers.
Reports of 5 to 8 inches of snowfall were received from NWS employees, spotters and coop observers.
Reports of 6 to 8 inches of snowfall were received from trained spotters.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2010Every state in 2010This day in weather historyWarnings in Idaho, December 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 2026-10-01. Each event’s entry at NCEI: 273999, 274000, 274001.