mainly across Huerfano and Las Animas Counties. Some snow reports in the warned area include 6 inches around Walsenburg (Huerfano County), 8 inches around Trinidad (Las Animas County), 10 inches in Kim (Las Animas County), and 14 inches around Branson (Las Animas County).
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 PUB wrote it up.
A storm system generated snow over portions of southeast Colorado...mainly across Huerfano and Las Animas Counties. Some snow reports in the warned area include 6 inches around Walsenburg (Huerfano County), 8 inches around Trinidad (Las Animas County), 10 inches in Kim (Las Animas County), and 14 inches around Branson (Las Animas County). Amounts of generally less than 6 inches were recorded around Rye and Beulah (Pueblo County), and Pritchett and Springfield (Baca County).
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 Pueblo, CO wrote its last area forecast discussion before the first event at Nov 7, 11:06 AM MST, 54 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PUEBLO CO 1106 AM MST MON NOV 7 2011 .UPDATE... IT IS APPARENT THAT STORM SYSTEM COMING IN IS A BIT SLOWER THAN WHAT WAS PROGGED EARLIER. LIKEWISE DELAYED ONSET OF PRECIP AND ADJUSTED CLOUDS/TEMPS ACCORDINGLY. && .AVIATION... I DID MAKE A FEW ADJUSTMENTS TO THE ONSET OF PRECIP OVER THE TAF SITES. EARLIER (957 AM AFD UPDATE) I DID NOT THINK I WAS GOING TO MAKE ADJUSTMENTS TO THE EARLY PART OF THE TAFS. AS PER DISCUSSION ABOVE...STORM IS COMING IN A BIT SLOWER THAN EARLIER PRGD. && .PREV DISCUSSION... /ISSUED 957 AM MST MON NOV 7 2011/ UPDATE... MAIN CHANGE WAS TO UPDATE TEMPS AS WE ARE WARMING UP RATHER QUICKLY OVER MOST OF THE REGION. ADJUSTED TEMPS UP ON THE PLAINS 4 TO 8 DEGREES...TEMPS CHANGES WERE A LESS UP IN EL PASO AS THEY ARE CLOUDING UP AS I WRITE. AS FOR SNOW TOTALS ON PLAINS...IF SIMULATIONS ARE CORRECT...THE BIG WINNER SHOULD BE KIOWA COUNTY. SOME OF THIS PRECIP WILL INITIALLY BE RAIN. \/34 AVIATION... DO NOT PLAN TO MAKE ANY SIGNIFICANT CHANGES TO ONGOING TAFS. PRECIP CHANCES WILL SIGNIFICANT DECREASE AT KALS AFTER SUNRISE. KPUB MAY END A BIT EARLIER AS WE GET SHADOWED FROM THE PALMER DIVIDE. KCOS SHOULD END BY 15Z. PREV DISCUSSION... /ISSUED 458 AM MST MON NOV 7 2011/ SHORT TERM... (TODAY...TONIGHT AND TUESDAY) STILL A TRICKY FORECAST WITH MODEL DISAGREEMENTS PERSISTING...ESPECIALLY REGARDING SNOWFALL AMOUNTS ON THE PLAINS. FORECAST LEANS TOWARD THE 00Z/06Z NAM...WHICH HAS SUPPORT FROM ECMWF AND SREF...WHILE GFS CONTINUES TO BE THE OUTLIER WITH MUCH LOWER SNOW AMOUNTS OVER THE REGION. ALREADY SEEING THE BEGINNING OF WARM ADVECTION PRECIP STREAKING NORTH OUT OF THE TEXAS PANHANDLE INTO EASTERN COLORADO...WHILE MAIN UPPER TROUGH DIGS INTO ARIZONA. EXPECT PRECIP TO GRADUALLY INCREASE THROUGH THE DAY...WITH ACCUMULATING SNOW OVER THE MOUNTAINS BY AFTERNOON...WHILE LOWER ELEVATIONS SEE A RAIN/SNOW MIX. STRONG UPWARD MOTION DEVELOPS OVER MUCH OF THE AREA AFTER 00Z...WITH ANY MIX TURNING TO SNOW OVER THE PLAINS BY 03Z. EXPECT PERIODS OF MODERATE/HEAVY SNOW OVERNIGHT AS UPSLOPE AND SYNOPTIC LIFT MAXIMIZE AROUND 06Z-09Z. UPPER LOW LIFTS INTO SOUTHEASTERN COLORADO TUES MORNING...WITH LOW AND MID LEVEL FLOW BECOMING MORE NORTHERLY AND INCREASING BY 15Z. THIS SHOULD SHUT DOWN SNOW OVER KCOS AND KPUB...WHILE PRODUCING A BURST OF HEAVIER SNOW OVER NORTHEAST UPSLOPE FAVORED TERRAIN SOUTH OF THE ARKANSAS RIVER AND OVER THE SOUTHERN SANGRES NEAR CUCHARA. MOST MODELS SHOW SOME SORT OF WRAP AROUND BAND OVER THE EASTERN PLAINS IN THE 12Z-18Z TIME PERIOD...WITH EVEN DRIER GFS SHOWING A FEW INCHES OF SNOW FROM LA JUNTA NORTH TO EADS DURING THE MORNING. OVERALL...HEAVIEST SNOW LOOKS TO OCCUR OVER THE SANGRES/WETS...WHERE AMOUNTS OVER A FOOT ARE LIKELY. EASTERN PLAINS AMOUNTS DEPEND ON WHERE WRAP AROUND BAND SETS UP...BEST GUESS IS ALONG A TRINIDAD/LA JUNTA/EADS LINE. COULD BE A RATHER SHARP CUT-OFF ON BOTH THE NORTH AND SOUTH SIDES OF THIS BAND...THOUGH THINK ENOUGH CONVECTION AND UPSLOPE WILL BE PRESENT TO AT LEAST GET ADVISORY SNOW ALONG THE NORTH SIDE ACROSS TELLER/EL PASO COUNTIES. DIDN'T MENTION ANY TSSN IN THE GRIDS...BUT GIVEN RATHER STEEP APPEARANCE OF FORECAST SOUNDINGS...A FEW LIGHTNING STRIKES NOT OUT OF THE QUESTION LATER TODAY/TONIGHT. MAX TEMPS SHADED TOWARD SLIGHTLY WARMER MET NUMBERS TODAY...THEN BELOW ALL GUIDANCE ON TUES. --10 LONG TERM... (TUESDAY NIGHT THROUGH SUNDAY) TUESDAY NIGHT-WEDNESDAY...PRECIPITATION LOOKS TO DIMINISH QUICKLY FROM WEST TO EAST TUESDAY AFTERNOON THROUGH EARLY TUESDAY EVENING WITH SUBSIDENT NORTHWEST FLOW DEVELOPING ACROSS THE STATE AS THE POTENT UPPER SYSTEM CONTINUES TO LIFT OUT ACROSS THE CENTRAL HIGH PLAINS THROUGH TUESDAY NIGHT. 00Z GFS AND NAM DO INDICATE ANOTHER MINOR SHORT WAVE EMBEDDED WITHIN THE NORTHWEST FLOW ALOFT DIVING ACROSS THE ROCKIES TUESDAY NIGHT WITH THE LATEST ECMWF MUCH FURTHER SOUTH WITH SAID WAVE. AT ANY RATE...HAVE KEPT SILENT POPS ACROSS THE EASTERN MTS AND PLAINS FOR TUESDAY NIGHT WITH SLIGHT POPS ACROSS THE CENTRAL MTS WITH THE NORTHWEST OROGRAPHIC FLOW WRINGING OUT ANY LINGERING MOISTURE. DRY WEATHER WITH A SLOW WARMING TREND EXPECTED ACROSS THE AREA ON WEDNESDAY. HAVE TRIED TO CUT BACK TEMPS A TAD IN EXPECTED SNOW COVERED AREAS OF THE SOUTHERN MTS...THE SOUTHERN I-25 CORRIDOR AND PORTIONS OF THE EASTERN PLAINS...AND WILL NEED TO MODIFY DEPENDING ON WHERE THE HEAVIEST SNOWFALL DOES OCCUR. THURSDAY-FRIDAY...DRY WEATHER WITH TEMPERATURES WARMING TO AT AND ABOVE SEASONAL AVERAGES EXPECTED THROUGH THIS PERIOD AS UPPER LEVEL RIDGING BUILDS ACROSS THE STATE. SATURDAY-SUNDAY...LATEST MODELS INDICATING DIFFERENCES FOR THE WEEKEND AND BEYOND WITH ACTIVE NORTHERN AND SOUTHERN STREAMS SENDING SYSTEMS ACROSS THE ROCKIES THROUGH EARLY NEXT WEEK. MODELS DO INDICATE A MAINLY ZONAL FLOW REGIME ACROSS THE REGION WHICH WOULD KEEP THE BEST CHANCES OF PRECIPITATION ALONG AND WEST OF THE CONTDVD WITH A GENERALLY DRY...WARM AND BREEZY WEATHER PATTERN FOR THE EASTERN PLAINS. -MW AVIATION... EXPECT CIGS TO GRADUALLY LOWER OVER THE REGION THIS MORNING...WITH MOST MOUNTAIN AREAS OBSCURED BY 18Z. MOUNTAINS WILL STAY OBSCURED UNTIL AT LEAST 18Z TUE...WITH SOME BREAKS AFTERWARD. FOR THE TAF SITES...VFR CONDITIONS THIS MORNING...WITH MVFR CONDITIONS DEVELOPING TOWARD 21Z AS CIGS LOWER AND -SHSN DEVELOP. PROLONGED PERIOD OF IFR CONDITIONS DUE TO SNOW WILL DEVELOP BY 03Z AT KCOS AND KPUB...LASTING UNTIL AT LEAST 15Z TUES. WILL SEE SOME LIFR CONDITIONS BOTH SITES IN THE 06-12Z TIME-FRAME. CONDITIONS AT KALS WILL BE MAINLY MVFR THROUGH 15Z TUE...WITH OCCASIONAL IFR IN HEAVIER SHSN. && .PUB WATCHES/WARNINGS/ADVISORIES... WINTER STORM WARNING FROM 8 PM THIS EVENING TO 5 PM MST TUESDAY FOR COZ089-093>098. WINTER STORM WARNING FROM 5 PM THIS AFTERNOON TO 11 AM MST TUESDAY FOR COZ087-088. WINTER STORM WARNING UNTIL 11 AM MST TUESDAY FOR COZ072>075-079- 080. WINTER WEATHER ADVISORY FROM 5 PM THIS AFTERNOON TO 11 AM MST TUESDAY FOR COZ076>078-083>086. WINTER WEATHER ADVISORY UNTIL 11 AM MST TUESDAY FOR COZ058-060- 066-068-081-082. && 34/34
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PUEBLO CO 717 AM MST MON NOV 7 2011 COZ058>089-093>099-081430- WESTERN MOSQUITO RANGE/EAST LAKE COUNTY ABOVE 11000 FT- LEADVILLE VICINITY/LAKE COUNTY BELOW 11000 FT- EASTERN SAWATCH MOUNTAINS ABOVE 11000 FT- WESTERN CHAFFEE COUNTY BETWEEN 9000 AND 11000 FT- CENTRAL CHAFFEE COUNTY BELOW 9000 FT- WESTERN MOSQUITO RANGE/EAST CHAFFEE COUNTY ABOVE 9000 FT- SAGUACHE COUNTY WEST OF CONTINENTAL DIVIDE BELOW 10000 FT- SAGUACHE COUNTY EAST OF CONTINENTAL DIVIDE BELOW 10000 FT- LA GARITA MOUNTAINS ABOVE 10000 FT- UPPER RIO GRANDE VALLEY/EASTERN SAN JUAN MOUNTAINS BELOW 10000 FT- EASTERN SAN JUAN MOUNTAINS ABOVE 10000 FT- DEL NORTE VICINITY/NORTHERN SAN LUIS VALLEY BELOW 8500 FT- ALAMOSA VICINITY/CENTRAL SAN LUIS VALLEY BELOW 8500 FT- SOUTHERN SAN LUIS VALLEY- NORTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 8500 AND 11000 FT- NORTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FEET- SOUTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 7500 AND 11000 FT- SOUTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FT- NORTHWESTERN FREMONT COUNTY ABOVE 8500 FT- WESTERN/CENTRAL FREMONT COUNTY BELOW 8500 FT- WET MOUNTAIN VALLEY BELOW 8500 FEET- WET MOUNTAINS BETWEEN 6300 AND 10000 FT- WET MOUNTAINS ABOVE 10000 FT- TELLER COUNTY/RAMPART RANGE ABOVE 7500 FT/PIKES PEAK BETWEEN 7500 AND 11000 FT-PIKES PEAK ABOVE 11000 FT- CANON CITY VICINITY/EASTERN FREMONT COUNTY- NORTHERN EL PASO COUNTY/MONUMENT RIDGE/RAMPART RANGE BELOW 7500 FT- COLORADO SPRINGS VICINITY/SOUTHERN EL PASO COUNTY/RAMPART RANGE BELOW 7400 FT-PUEBLO AND VICINITY/PUEBLO COUNTY BELOW 6300 FT- WALSENBURG VICINITY/UPPER HUERFANO RIVER BASIN BELOW 7500 FT- TRINIDAD VICINITY/WESTERN LAS ANIMAS COUNTY BELOW 7500 FT- CROWLEY COUNTY-LA JUNTA VICINITY/OTERO COUNTY- EASTERN LAS ANIMAS COUNTY-WESTERN KIOWA COUNTY- EASTERN KIOWA COUNTY-LAS ANIMAS VICINITY/BENT COUNTY- LAMAR VICINITY/PROWERS COUNTY-SPRINGFIELD VICINITY/BACA COUNTY- 717 AM MST MON NOV 7 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL...EAST CENTRAL...SOUTH CENTRAL AND SOUTHEAST COLORADO. .DAY ONE...TODAY AND TONIGHT A FAST MOVING BUT POTENT STORM SYSTEM WILL BRING SNOW TO MUCH OF SOUTHERN COLORADO TODAY AND TONIGHT. SNOW WILL START TO FALL LATE THIS MORNING ACROSS THE SOUTHWEST AND CENTRAL MOUNTAINS...WITH PERIODS OF MODERATE TO HEAVY SNOW LATE TODAY AND TONIGHT. SNOWFALL ACCUMULATIONS BY EARLY TUESDAY MORNING OF 4 TO 8 INCHES CAN BE EXPECTED ACROSS THIS REGION. SNOW WILL BEGIN TO SPREAD INTO NORTHWARD ACROSS MUCH OF THE AREA BY THIS AFTERNOON...WITH RAIN MIXING WITH SNOW AT TIMES OVER THE PLAINS UNTIL SUNSET. PERIODS OF MODERATE TO HEAVY SNOW ARE LIKELY OVERNIGHT ACROSS THE EASTERN MOUNTAINS AND PLAINS...WITH THE HEAVIEST SNOW FALLING OVER THE SOUTHERN SANGRE DE CRISTO RANGE AND THE HIGHER ELEVATIONS OF THE WET MOUNTAINS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY SNOWFALL WILL QUICKLY DIMINISH FROM WEST TO EAST THROUGH THE DAY TUESDAY AS THE POTENT STORM SYSTEM MOVES EAST OF THE AREA. STORM TOTAL ACCUMULATIONS OF 8 TO 16 INCHES CAN BE EXPECTED ACROSS THE SAN JUAN AND LA GARITA MOUNTAINS AND THE SANGRE DE CRISTO AND WET MOUNTAINS...WITH THE GREATEST AMOUNTS OVER THE SOUTHEASTERN MOUNTAINS. TOTAL SNOW ACCUMULATIONS OF 5 TO 10 INCHES WILL BE POSSIBLE ACROSS EASTERN SAWATCH AND THE MOSQUITO MOUNTAINS...PIKES PEAK AND THE RAMPART RANGE...AS WELL AS THE RATON MESA REGION AND SOUTHERN I-25 CORRIDOR...INCLUDING WALSENBURG AND TRINIDAD. TOTAL SNOW ACCUMULATIONS OF 5 TO 9 INCHES WILL BE POSSIBLE ACROSS MUCH OF THE SOUTHEASTERN PLAINS...WITH 3 TO 6 INCHES OVER NORTHERN PORTIONS OF THE I-25 CORRIDOR FROM PUEBLO TO THE PALMER DIVIDE. SNOW ACCUMULATIONS OF 1 TO 3 INCHES WILL BE POSSIBLE ACROSS THE UPPER ARKANSAS RIVER VALLEY AND THE SAN LUIS VALLEY. ISOLATED SNOW SHOWERS WILL AGAIN BE POSSIBLE ALONG AND WEST OF THE CONTINENTAL DIVIDE ON SUNDAY. .SPOTTER INFORMATION STATEMENT... WEATHER CONDITIONS THAT MEET REPORTING CRITERIA FOR SPOTTERS WILL BE LIKELY ACROSS THE MOUNTAINS TODAY AND OVER THE ENTIRE AREA TONIGHT. 10/23
The national radar mosaic for the moment the first event began.
3 winter storm. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2011Every state in 2011This day in weather historyWarnings in Colorado, November 2011
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: 353367, 353365, 353368.