Front Range Foothills as well as portions of the Urban Corridor. 0 inches, 3 miles east-northeast of Nederland, Stillwater Creek and Summit Ranch, 10 inches at Poudre Park and 3 miles southeast of Indian Hills.
Every event with a place to put it; 5 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 BOU wrote it up.
Heavy snow fell in the North-Central Mountains...Front Range Foothills as well as portions of the Urban Corridor. In the North-Central Mountains and Front Range Foothills storm totals included: 17.0 inches, 7 miles east-northeast of Virginia Dale, 14.0 inches, 2 miles north of Allenspark, 13.0 inches, 4 miles west-southwest of Eldorado Springs and Roxbourough State Park, 12.5 inches at Arapahoe Ridge, 12 inches at Cabin Creek and Horsetooth Mountain, 11.5 inches, 4 miles west-northwest of Conifer, 11.0 inches, 3 miles east-northeast of Nederland, Stillwater Creek and Summit Ranch, 10 inches at Poudre Park and 3 miles southeast of Indian Hills. Along the Urban Corridor storm totals included: 14.0 inches, 9 miles south-southwest of Sedalia, 10.0 inches, 1 mile southwest of Ft. Collins, 9.5 inches, 3 miles north-northeast of Loveland, 9.0 inches, 2 miles southwest of Louisville, 8.0 inches at Ralston Reservoir and 7.0 inches, 4 miles east of Ft. Collins.
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 Denver/Boulder, CO wrote its last area forecast discussion before the first event at Nov 27, 9:45 PM MST, 2 hours 15 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DENVER CO
945 PM MST SAT NOV 27 2004
.UPDATE...HEAVY SNOW BANDS UNDER THE JET HAVE PRODUCED 4-10 INCHES
OF SNOW IN WESTERN COLORADO THIS EVENING. THIS AREA WILL TRANSLATE
ACROSS OUR MOUNTAINS OVER THE NEXT 12 HOURS...REQUIRING A WARNING
FOR THE HIGH MOUNTAINS AND AN ADVISORY FOR NORTH AND MIDDLE PARKS.
THOUGH ABOUT A WARNING FOR SOUTH PARK BUT IT IS ON THE EDGE OF THE
MOISTURE AND STRONG LIFT...SO LEAVING THE ADVISORY. WE WILL NEED TO
WATCH THE NORTHERN BORDER OF EASTERN COLORADO ON SUNDAY...BUT SOME
INCREASE IN THE SNOW ALREADY ANTICIPATED SO THE NEXT SHIFT WILL BE
ABLE TO LOOK AT WHETHER WE HAVE ENOUGH SNOW THERE.
.SHORT TERM...MODELS STILL CONSISTANT WITH MOVEMENT OF UPPER TROUGH
AND DEVELOPING UPPER LOW DURING THE NEXT 24 HOURS. SYSTEM TO DIVE
INTO NORTHERN UTAH BY 12Z SUNDAY...WITH INCREASING LIFT ACROSS CWA
AS SHOWN BY DIV-Q VERTICAL VELOCITY PROGS. SNOWFALL ALREADY
OCCURRING ACROSS MOUNTAINS DESPITE POOR OROGRAPHICS...AND BEGINNING
TO MOVE ONTO PLAINS. SNOW TO CONTINUE TO SPREAD ACROSS REMAINDER OF
PLAINS TONIGHT AS LIFT INCREASES. SNOW SHOULD ENHANCE SOME ACROSS
PLAINS DURING DAY SUNDAY AS UPSLOPE FLOW DEVELOPS BEHIND NORTHEAST
SURGE AND COMBINES WITH LIFT. IN ADDITION...FAIRLY STRONG 130 KT JET
BECOMES CENTERED ACROSS SOUTHERN COLORADO DURING DAY...WITH CWA IN
FAVORED AREA FOR UPWARD MOTION. 12Z ETA SNOW ACCUMULATIONS ACROSS
MUCH OF AREA THROUGH SUNDAY WERE IN ADVISORY CRITERIA...WHICH
APPEARS REASONABLE GIVEN AMOUNT OF LIFT EXPECTED. SMALL AREA OF 10
INCHES INDICATED ACROSS ZONES 38 AND 39...MAY BE A BIT OVERDONE BUT
MAY NEED TO BE WATCHED GIVEN THE UPSLOPE. WILL HOIST A SNOW
ADVISORY FOR MOST OF THE CWA TONIGHT THROUGH SUNDAY...WHICH WILL GO
INTO SUNDAY EVENING. WILL LEAVE ZONES 41..46 AND 47 OUT OF THE
ADVISORY FOR NOW AS NORTHEAST FLOW NOT GREAT FOR UPSLOPE THERE.
TEMPERATURE AND THICKNESS PROGS SHOW A 4 DEGREE CELSIUS COOL DOWN
FROM TODAYS READINGS...EQUATING TO HIGHS IN THE 20S ACROSS THE
PLAINS...WHICH IS SHOWN IN CURRENT MAX TEMPERATURE GRIDS. GUIDANCE
VALUES ARE SIMILAR.
.LONG TERM...SNOW SHOULD CONTINUE THROUGH SUNDAY EVENING AND THEN
TAPER OFF FROM NORTH TO SOUTH ACROSS THE FORECAST AREA LATE SUNDAY
NIGHT AND MONDAY. TEMPERATURES WILL BE UNSEASONABLY COLD.
WITH BETTER UPSLOPE BUT SIGNIFICANTLY WEAKER FORCING...GENERALLY
EXPECT ANOTHER INCH OR TWO SUNDAY EVENING SO WILL KEEP WINTER
WEATHER ADVISORY GOING TIL MIDNIGHT SUNDAY NIGHT. FLOW TURNS MORE
NORTHERLY SO PALMER DIVIDE AREA WILL EVENTUALLY BECOME MORE FAVORED
UNLIKE THE EARLY PERIODS OF THIS FORECAST. LATER SHIFTS MAY HAVE TO
ADD THOSE ZONES TO ADVISORY IF EVERYTHING DEVELOPS AS PLANNED. SNOW
MAY CONTINUE THROUGH MUCH OF MONDAY ON THE PALMER DIVIDE WHILE
NORTHERN BORDER AREA DRIES OUT AS THERE SHOULD BE A SHARP BACK EDGE
TO THE PRECIPITATION SHIELD AS STRONG SHEAR ZONE/TROUGH AXIS SINKS
SOUTH.
WHILE SYSTEM WILL BE A SLOW MOVER...SKIES ARE EXPECTED TO BEGIN
CLEARING MONDAY NIGHT. THIS WILL BRING THE COLDEST TEMPS OF THE
SEASON WITH TEMPERATURES DROPPING INTO THE SINGLE DIGITS ON THE
PLAINS AND WELL BELOW ZERO IN THE MOUNTAINS. IF THINGS CLEAR
COMPLETELY...COULD DROP BELOW ZERO IN A FEW SPOTS ON THE PLAINS.
ENSEMBLES SUPPORT TROUGH AXIS MOVING THROUGH ENTIRE FORECAST AREA BY
TUESDAY...SO WILL REMOVE POPS IN ALL AREAS EXCEPT THE HIGHER
MOUNTAINS AND EVEN THERE ITS ONLY A SLIGHT CHANCE. TEMPERATURES
WILL BEGIN TO MODERATE FOR THE REST OF THE WEEK BUT STILL REMAIN
BELOW NORMAL.
&&
.BOU WATCHES/WARNINGS/ADVISORIES...WINTER STORM WARNING THROUGH
MIDNIGHT SUNDAY NIGHT NORTH CENTRAL MOUNTAINS...
ZONES 31..33..34.
WINTER WEATHER ADVISORY THROUGH MIDNIGHT SUNDAY NIGHT
MOUNTAIN VALLEYS...FOOTHILLS...AND MOST OF NORTHEASTERN
COLORADO...ZONES 30..32..35>40..42>45..48>51.
&&
GIMMESTADHAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER CO 1101 AM MST SAT NOV 27 2004 COZ030>051-281300- JACKSON COUNTY BELOW 9000 FEET-WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-GRAND AND SUMMIT COUNTIES BELOW 9000 FEET-SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/GILPIN/CLEAR CREEK/ SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-CENTRAL AND SOUTHEAST PARK COUNTY-LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY-NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/ EAST BROOMFIELD COUNTY-ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY-CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 1101 AM MST SAT NOV 27 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT OCCASIONAL LIGHT SNOW WILL CONTINUE IN THE MOUNTAINS TODAY... DEVELOPING IN AND NEAR THE FRONT RANGE FOOTHILLS DURING THE AFTERNOON. SNOWFALL WILL BECOME WIDESPREAD OVER NORTH CENTRAL AND NORTHEAST COLORADO TONIGHT. AN APPROACHING STORM SYSTEM WILL MOVE INTO SOUTHERN IDAHO BY LATE THIS AFTERNOON THEN DROP INTO NORTHERN UTAH OVERNIGHT TONIGHT. SNOWFALL ACCUMULATIONS WILL RANGE FROM 1 TO 4 INCHES ACROSS THE AREA. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SNOW WILL CONTINUE THROUGH SUNDAY EVENING AND THEN GRADUALLY DIMINISH FROM NORTH TO SOUTH ACROSS THE AREA LATE SUNDAY NIGHT AND MONDAY. ADDITIONAL ACCUMULATIONS OF 3 TO 6 INCHES ARE EXPECTED... WHICH WILL BRING STORM TOTALS FROM THIS PROLONGED SNOW EVENT INTO THE 4 TO 10 INCH RANGE. THE HEAVIEST TOTALS SHOULD OCCUR IN THE FRONT RANGE FOOTHILLS...WITH ANOTHER POSSIBLE MAXIMUM NEAR THE NEBRASKA BORDER. TEMPERATURES WILL BE UNSEASONABLY COLD THROUGH MONDAY...WITH ONLY A SLOW AND MODEST WARMUP FOR TUESDAY THROUGH THE END OF THE WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. LESZCYNSKI/BARJENBRUCH
The national radar mosaic for the moment the first event began.
5 winter storm. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2004Every state in 2004This day in weather historyWarnings in Colorado, November 2004
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: 5415167, 5415168, 5415169, 5415170, 5415361.