Another in a series of winter storms moved through the area. even down to the coast.
Every event with a place to put it; 7 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 MFR wrote it up.
Another in a series of winter storms moved through the area. This one was associated with an arctic front...so snow fell at unusually low altitudes...even down to the coast.
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 Medford, OR wrote its last area forecast discussion before the first event at Nov 22, 3:40 AM PST, 1 hour 20 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEDFORD OR
340 AM PST MON NOV 22 2010
.DISCUSSION...
A STRONG AND FAST MOVING SHORT WAVE ARRIVES THIS AFTERNOON
AND MOVES ACROSS OUR REGION TONIGHT. IT WILL BRING LOW ELEVATION
LIGHT TO MODERATE SNOW TO SOUTHWEST OREGON AND LIGHT SNOW TO SOUTH
CENTRAL OREGON. IT WILL ALSO AFFECT NORTHERN CALIFORNIA OVERNIGHT.
AS IT MOVES THROUGH SNOW LEVELS AROUND 2000 FEET AND WILL DROP TO
BETWEEN 500 FEET AND 1500 TONIGHT. SNOW WILL TAPER OFF TO LIGHT
SHOWERS BY TUESDAY MORNING.
TUESDAY VERY COLD AIR ALOFT WILL BEGIN TO MOVE OVER OUR AREA. TUESDAY
NIGHT THE COLD AIR AND DECREASING CLOUDS WILL BRING VERY COLD
TEMPERATURES BY EARLY WEDNESDAY MORNING. OVER NIGHT LOWS WILL BE
10 TO 20 DEGREES BELOW NORMAL IN SOUTHWEST OREGON AND IN THE SINGLE
DIGITS EAST OF THE CASCADES. FREEZING FOG MAY FORM IN MOST VALLEYS.
THURSDAY WILL CONTINUE COLD WITH HIGHS AND LOWS ABOUT 10 DEGREES
BELOW NORMAL. FRIDAY WARMER SOUTHWEST WINDS AHEAD OF THE NEXT COLD
FRONT WILL BRING TEMPS UP CLOSE TO NORMAL.
BY THE WEEKEND A COLD TROUGH WITH WIDESPREAD PRECIPITATION AND LOW
SNOW LEVELS WILL RETURN.
&&
.AVIATION...GENERAL MVFR CONDITIONS IN LIGHT SHOWERS WITH BROAD
AREAS OF MOUNTAIN OBSCUREMENT WILL SLOWLY IMPROVE THIS MORNING. A
STRONG SHORT WAVE WILL BRING WIDESPREAD IFR BY THIS EVENING AS IT
MOVES THROUGH OVER NIGHT WITH NUMEROUS SNOW SHOWERS.
&&
.MFR WATCHES/WARNINGS/ADVISORIES...
OR...WINTER WEATHER ADVISORY FROM 1 PM THIS AFTERNOON TO 4 AM PST
TUESDAY ABOVE 500 FEET FOR ORZ021-022.
WINTER WEATHER ADVISORY FROM 1 PM THIS AFTERNOON TO 4 AM PST
TUESDAY ABOVE 1000 FEET FOR ORZ023.
WINTER WEATHER ADVISORY FROM 1 PM THIS AFTERNOON TO 4 AM PST
TUESDAY ABOVE 3000 FEET FOR ORZ027-028.
WINTER WEATHER ADVISORY FROM 1 PM THIS AFTERNOON TO 4 AM PST
TUESDAY ABOVE 1500 FEET FOR ORZ024>026.
CA...WINTER WEATHER ADVISORY FROM 1 PM THIS AFTERNOON TO 4 AM PST
TUESDAY ABOVE 3000 FEET FOR CAZ083.
WINTER WEATHER ADVISORY FROM 1 PM THIS AFTERNOON TO 4 AM PST
TUESDAY ABOVE 1500 FEET FOR CAZ080.
WINTER WEATHER ADVISORY FROM 1 PM THIS AFTERNOON TO 4 AM PST
TUESDAY ABOVE 3000 FEET FOR CAZ081-082.
PACIFIC COASTAL WATERS...SMALL CRAFT ADVISORY FOR WINDS FROM 3 PM
THIS AFTERNOON TO 10 AM PST TUESDAY FOR PZZ350-356-370-376.
HAZARDOUS SEAS WARNING UNTIL 4 PM PST TUESDAY FOR
PZZ350-356-370-376.
11HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MEDFORD OR 1241 PM PST SUN NOV 21 2010 CAZ082-083-221400- SOUTH CENTRAL SISKIYOU COUNTY- NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY- 1241 PM PST SUN NOV 21 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN CALIFORNIA. .DAY ONE...THIS AFTERNOON AND TONIGHT NO SIGNIFICANT WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THE NEXT APPROACHING SYSTEM MONDAY WILL BRING STRONG WINDS AND AREAS OF BLOWING SNOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. CAZ081-221400- CENTRAL SISKIYOU COUNTY- 1241 PM PST SUN NOV 21 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN CALIFORNIA. .DAY ONE...THIS AFTERNOON AND TONIGHT A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4PM THIS AFTERNOON THROUGH MIDNIGHT...SEE WINTER WEATHER MESSAGE FOR DETAILS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY A WINTER WEATHER ADVISORY IS IN EFFECT THROUGH 4AM MONDAY...SEE WINTER WEATHER MESSAGE FOR DETAILS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. ORZ022-023-221400- CURRY COUNTY COAST-CENTRAL DOUGLAS COUNTY- 1241 PM PST SUN NOV 21 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST OREGON. .DAY ONE...THIS AFTERNOON AND TONIGHT A WINTER WEATHER ADVISORY IS IN EFFECT FOR ELEVATIONS ABOVE 1000 FEET FROM 4PM THIS AFTERNOON THROUGH MIDNIGHT...SEE WINTER WEATHER MESSAGE FOR DETAILS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY A WINTER WEATHER ADVISORY REMAINS IN EFFECT FOR ELEVATIONS ABOVE 1000 FEET THROUGH 4AM MONDAY...SEE WINTER WEATHER MESSAGE FOR DETAILS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. CAZ080-ORZ024-026-221400- WESTERN SISKIYOU COUNTY-EASTERN CURRY COUNTY AND JOSEPHINE COUNTY- JACKSON COUNTY- 1241 PM PST SUN NOV 21 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN CALIFORNIA AND SOUTHWEST OREGON. .DAY ONE...THIS AFTERNOON AND TONIGHT A WINTER WEATHER ADVISORY IS IN EFFECT FOR ELEVATIONS ABOVE 1500 FEET FROM 4PM THIS AFTERNOON THROUGH MIDNIGHT...SEE WINTER WEATHER MESSAGE FOR DETAILS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY A WINTER WEATHER ADVISORY IS IN EFFECT FOR ELEVATIONS ABOVE 1500 FEET THROUGH 4AM MONDAY...SEE WINTER WEATHER MESSAGE FOR DETAILS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. CAZ084-085-ORZ028>031-221400- NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES-MODOC COUNTY- SISKIYOU MOUNTAINS AND SOUTHERN OREGON CASCADES-KLAMATH BASIN- NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY- CENTRAL AND EASTERN LAKE COUNTY- 1241 PM PST SUN NOV 21 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN CALIFORNIA AND SOUTH CENTRAL OREGON. .DAY ONE...THIS AFTERNOON AND TONIGHT NO SIGNIFICANT WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THE NEXT APPROACHING SYSTEM MONDAY WILL BRING STRONG WINDS AND AREAS OF BLOWING SNOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEDFORD OR 352 AM PST MON NOV 22 2010 CAZ080>085-ORZ021>031-230200- WESTERN SISKIYOU COUNTY-CENTRAL SISKIYOU COUNTY- SOUTH CENTRAL SISKIYOU COUNTY- NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY- NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES-MODOC COUNTY- SOUTH CENTRAL OREGON COAST-CURRY COUNTY COAST- CENTRAL DOUGLAS COUNTY-EASTERN CURRY COUNTY AND JOSEPHINE COUNTY- EASTERN DOUGLAS COUNTY FOOTHILLS-JACKSON COUNTY- SOUTH CENTRAL OREGON CASCADES- SISKIYOU MOUNTAINS AND SOUTHERN OREGON CASCADES-KLAMATH BASIN- NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY- CENTRAL AND EASTERN LAKE COUNTY- INCLUDING THE CITIES OF...ETNA...FORT JONES...GREENVIEW...YREKA... WEED...MOUNT SHASTA...DUNSMUIR...MCCLOUD...TENNANT...TULELAKE... DORRIS...ALTURAS...COOS BAY...NORTH BEND...REEDSPORT...COQUILLE... BROOKINGS...HARBOR...GOLD BEACH...ROSEBURG...SUTHERLIN...GREEN... GRANTS PASS...STEAMBOAT...TOKETEE FALLS...MEDFORD...ASHLAND... CRATER LAKE...CRESCENT LAKE...DIAMOND LAKE...UNION CREEK... HOWARD PRAIRIE...SISKIYOU SUMMIT...ALTAMONT...KLAMATH FALLS... BEATTY...BLY...CHEMULT...CRESCENT...GILCHRIST...SPRAGUE RIVER... LAKEVIEW 352 AM PST MON NOV 22 2010 ...VERY COLD WEATHER HEADING FOR SOUTHERN OREGON AND NORTHERN CALIFORNIA... RECENT WARNINGS AND ADVISORIES HAVE EMPHASIZED THE COLD SHOWERS AND LOW SNOW LEVELS OCCURRING WITH SYSTEMS MOVING THROUGH DURING THE LAST FEW DAYS...AND YET ANTOHER SHOT OF PRECIPITATION WILL MOVE THROUGH LATER TODAY TRIGGERING NEW ADVISORIES THROUGHOUT THE AREA FROM 1PM PST MONDAY THROUGH 4 AM TUESDAY. BUT ANOTHER HAZARD WILL ARISE ONCE THIS SYSTEM MOVES OUT TUESDAY. A COLD AIR MASS IN PLACE OVER THE AREA COMBINED WITH CLEARING SKIES AND FRESH SNOWFALL TO MAKE TUESDAY NIGHT AN EXTRAORDINARILY COLD ONE OVER SOUTHERN OREGON AND NORTHERN CALIFORNIA. FORECAST LOW TEMPERATURES WEDNESDAY MORNING RANGE FROM ZERO TO 10 BELOW ZERO EAST OF THE CASCADES. FORECAST LOWS ARE IN THE 20S FOR THE INLAND AREAS WEST OF THE CASCADES...INCLUDING ROSEBURG. BUT TEMPERATURES NEAR MEDFORD AND ASHLAND WILL FALL NEAR RECORD LOWS IN THE UPPER TEENS. ALONG THE I-5 CORRIDOR IN NORTHERN CALIFORNIA...FORECAST LOWS ARE IN THE LOWER TEENS...BUT MAY DIP INTO THE SINGLE DIGITS. EVEN THE COAST WILL SEE FREEZING TEMPERATURES WEDNESDAY MORNING WITH FORECAST LOWS NEAR 30 DEGREES. SOME COASTAL VALLEYS MAY SEE LOWS IN THE MIDDLE TO UPPER 20S. RESIDENTS AND BUSINESSES IN THESE AREAS SHOULD BEGIN PREPARATIONS FOR COLD WEATHER NOW. PROTECT EXPOSED PIPES AND DRAIN IRRIGATION SYSTEMS. EVEN PLANTS IN PROTECTED AREA SUCH AS PORCHES AND BARNS WILL BE ENDANGERED BY THESE TEMPERATURES...SO ADDITIONAL PROTECTION WILL BE NECESSARY FOR THEM. OTTENWELLER
The national radar mosaic for the moment the first event began.
7 heavy snow. Local standard time, as filed.
A SNOTEL at King Mountain at 4340 feet recorded 7 inches of snow in 8 hours ending at 22/2200 PST. A SNOTEL at Toketee Airstrip at 3240 feet recorded 18 inches of snow in 19 hours ending at 23/0000 PST.
A cooperative observer in Bly Oregon reported 11.8 inches of snow in 24 hours. |A weather spotter 1N Bly Mountain reported a storm total of 10.0 inches of snow. A weather spotter 1W Chemult reported 13.0 inches of snow overnight. The cooperative observer in Chemult reported 11.8 inches of snow in 24 hours.
A weather spotter 1SSW Keno reported 10 inches of snow in 24 hours ending at 23/0600 PST. A SNOTEL at Sevenmile Marsh at 5700 feet recorded 10 inches of snow in 12 hours ending at 22/2300 PST.
Based on numerous reports of sufficient rain in this zone and a known snow level at or below 2000 feet, it is assumed that heavy snow fell at higher elevations.
Based on a number of reports of sufficient rain in this zone, including 1.11 inches 2SW O'Brien and and a known snow level at or below 2000 feet, it is assumed that heavy snow fell at higher elevations.
Based on a number of reports of sufficient rain in this zone, including 2.20 inches at the Billie Creek Divide RAWS, 2.00 inches at the Cold Springs Camp RAWS, and 1.90 inches at Sevenmile Marsh RAWS, it is assumed that heavy snow fell at higher elevations.
A spotter 2ESE Ashland reported 5.0 inches of snow in 12 hours or so.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oregon in 2010Every state in 2010This day in weather historyWarnings in Oregon, November 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: 262581, 262577, 262578, 262579, 262580, 262830, 262582.