High winds occurred over the southern I-25 corridor, with gust to 75 mph. There was little damage.
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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 PUB wrote it up.
High winds occurred over the southern I-25 corridor, with gust to 75 mph. There was little damage.
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 Apr 29, 3:12 AM MST, 2 hours 48 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PUEBLO CO 412 AM MDT FRI APR 29 2011 .SHORT TERM... (TODAY AND TONIGHT) MAIN CONCERNS INCLUDE EXPECTED RED FLAG CONDITIONS AND HIGH WIND POTENTIAL. AN UPR TROF WL BE MOVING ACRS MT...WY AND INTO WRN CO TODAY. AHEAD OF THIS SYSTEM...STRONG WESTERLY FLOW WL BE FOUND OVR THE AREA. MODEL CROSS SECTIONS SHOW A MTN TOP STABLE LAYER THIS MORNING OVR SRN PORTIONS OF THE SOUTHEASTERN MTS WITH FAIRLY UNIFORM WIND SPEEDS ALOFT...AROUND 60 KTS. THE MT TOP STABLE LAYER BREAKS DOWN BY AFTERNOON. SHOULD BE QUITE WINDY MOST LOCATIONS TODAY...WITH THE WINDIEST CONDITIONS EXPECTED OVR THE SANGRES AND WET MTS AND THE SRN I25 CORRIDOR. WL KEEP THE HIGH WIND WARNING AS IS. HAVE HAD GENERALLY POOR RH RECOVERY TONIGHT AND WITH TEMPS WARMING NICELY AND DEW POINTS REMAINING LOW...RH VALUES WL DROP TO MINIMUMS IN THE SINGLE DIGITS AND TEENS FOR THE LOWER ELEVATIONS. THE CURRENT RED FLAG WARNING AREA STILL LOOKS GOOD BASED ON EXPECTED WEATHER CONDITIONS AND FUELS...HOWEVER WL CHANGE THE START TIME OF THE WARNING TO BE ONE HOUR EARLIER BASED ON WHEN RH VALUES ARE EXPECTED TO DROP TO 15 PERCENT OR LOWER. WITH THE UPR TROF APPROACHING...IT LOOKS LIKE CHANCES FOR PCPN OVR THE CENTRAL MTS WL BECOME CATEGORICAL IN THE AFTERNOON HOURS...AND WL INCREASE POPS FOR THIS AREA. WL ALSO KEEP SOME ISOLD POPS OVR THE SW MTS AND GO WITH DRY CONDITIONS ELSEWHERE. TEMPS MOST AREAS TODAY WL BE ABOVE NORMAL. TONIGHT THE UPR TROF WL DROP SOUTH OVR THE STATE AND A FRONT WL DROP INTO THE SERN PLAINS IN THE EVENING HOURS...AND PROBABLY MAKING IT THROUGH ALL THE SOUTHEAST PLAINS BY 06-08Z. THE NAM IS SHOWING SOME PCPN DEVELOPING OVR TELLER COUNTY AND AT LEAST THE NRN PORTIONS OF EL PASO COUNTY. PCPN ALSO CONTINUES OVR THE CENTRAL MTS TONIGHT. WL GO WITH SCT POPS OVR TELLER AND NRN EL PASO COUNTIES AND LIKELY OR HIGH POPS IN THE CENTRAL MTS. WL GO WITH DRY CONDITIONS ELSEWHERE. MODEL RH VALUES INDICATE SOME LOW TO MID CLOUD DEVELOPING ALONG MUCH OF THE I25 CORRIDOR BY LATE NIGHT...WITH MAINLY MID LEVEL CLOUDS OVR MUCH OF THE REST OF THE SERN PLAINS. .LONG TERM... (SATURDAY THROUGH THURSDAY) SATURDAY THROUGH MONDAY...LONG RANGE MODELS ARE NOW INDICATING THAT THE UPPER SYSTEM CROSSING THE DAKOTAS SAT MORNING HAVE MORPHED INTO MORE OF A LONGWAVE BAGGY TROUGH OVER THE NORTHERN PORTIONS OF THE COUNTRY. THE FIRST WAVE OF ENERGY CONTINUES EAST ON SAT WITHOUT BRINGING MUCH PCPN TO THE FORECAST AREA...BUT COLDER AIR BEHIND THE NORTHERLY SURGE WILL DROP MAX TEMPS ON SAT AS PREVIOUSLY ADVERTISED. A SECONDARY PIECE OF ENERGY HANGS BACK OVER THE GREAT BASIN STARTING SAT EVENING...AND THIS IS WHEN MODELS ARE PAINTING PCPN BLOOMING OVER THE FORECAST AREA...PARTICULARLY THE HIGHER TERRAIN AND SOUTHERN FOOTHILLS. THEREFORE...MODELS HAVE SLOWED THE PCPN EVENT BY ABOUT 24 HRS. THIS DISTURBANCE GRADUALLY SAGS TO THE SE ACROSS THE 4 CORNERS...WITH PCPN CONTINUING THROUGH MONDAY. CURRENTLY THE BEST WINDOW FOR PCPN WILL BE FROM 06Z SUN THROUGH 18Z MON...WITH ALL AREAS EXPECTING SOME SHOWERS SAVE FOR PERHAPS THE FAR EASTERN PLAINS COUNTIES OF KIOWA...BENT AND PROWERS. MAX TEMPS OVER THE WEEKEND ARE EXPECTED TO ONLY WARM INTO THE 40S AND 50S...AND THEN AROUND 60 FOR MOST AREAS BY MON. TUESDAY THROUGH THURSDAY...THE UPPER DISTURBANCE PASSES TO THE EAST BY EARLY TUE MORNING...WITH DRY AND WARMER CONDITIONS FORECAST UNDER W-NW FLOW ALOFT. MAX TEMPS ARE EXPECTED TO REBOUND INTO THE 60S FOR THE HIGH VALLEYS...AND LOWER 70S FOR THE E PLAINS. MOORE && .AVIATION... EXPECT VERY STRONG WESTERLY WINDS AT THE TAF SITES BY AFTERNOON. VFR CONDITIONS CAN BE EXPECTED TODAY AND THROUGH THE EVENING HOURS AT THE TAF SITES. LATE TONIGHT 06-08Z...SOME LOWER CLOUDS ARE EXPECTED TO DEVELOP IN THE VCNTY OF KCOS. AT THIS TIME MODEL SOUNDINGS INDICATE THE CLOUDS SHOULD STILL BE IN THE VFR CATEGORY...BUT THERE WL BE THE POTENTIAL FOR THE CLOUD LAYER TO GET INTO THE MVFR CATEGORY AT KCOS. KPUB AND KALS ARE EXPECTED TO HAVE VFR CONDITIONS TONIGHT. && .PUB WATCHES/WARNINGS/ADVISORIES... RED FLAG WARNING FROM 11 AM THIS MORNING TO 8 PM MDT THIS EVENING FOR COZ224-230>237. HIGH WIND WARNING UNTIL 6 PM MDT THIS EVENING FOR COZ072>075- 078>080-086>088. && 28/27
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PUEBLO CO 615 AM MDT FRI APR 29 2011 COZ058>089-093>099-301300- 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- 615 AM MDT FRI APR 29 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL...EAST CENTRAL...SOUTH CENTRAL AND SOUTHEAST COLORADO. .DAY ONE...TODAY AND TONIGHT VERY STRONG WESTERLY WINDS ARE EXPECTED OVER MUCH OF THE AREA TODAY. THE STRONGEST WINDS ARE FORECAST OVER THE SANGRE DE CRISTO AND WET MOUNTAINS AND THE INTERSTATE 25 CORRIDOR FROM SOUTH OF PUEBLO TO THE NEW MEXICO BORDER. THESE AREAS WILL SEE WINDS OF 35 TO 45 MPH WITH GUSTS OF 60 MPH OR HIGHER. HUMIDITIES AT THE LOWER ELEVATIONS TODAY ARE EXPECTED TO DROP BELOW 15 PERCENT BY AFTERNOON AND REMAIN THIS WAY THROUGH THE EARLY EVENING HOURS. THESE LOW HUMIDITIES ALONG WITH THE STRONG WINDS...WILL LEAD TO CRITICAL FIRE WEATHER CONDITIONS IN AREAS WHERE THE FUELS ARE DRY. THIS INCLUDES THE SAN LUIS VALLEY...CROWLEY... OTERO...KIOWA...BENT...PROWERS...BACA AND MOST OF LAS ANIMAS COUNTIES. SNOW IS EXPECTED TO FALL OVER THE HIGHER ELEVATIONS OF THE EASTERN SAWATCH AND WESTERN MOSQUITO RANGES...MAINLY THIS AFTERNOON THROUGH TONIGHT...WITH 2 TO 4 INCHES OF ACCUMULATION EXPECTED. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY A STRONG STORM SYSTEM IS EXPECTED TO MOVE ACROSS THE REGION OVER THE WEEKEND AND INTO THE BEGINNING OF THE NEXT WORK WEEK. A SIGNIFICANT COOL DOWN IN TEMPERATURES...AS MUCH AS 20 TO 25 DEGREES...IS EXPECTED FOR SATURDAY. RAIN AND SNOW WILL MOVE ACROSS THE MOUNTAINS AND VALLEYS SATURDAY...THEN SPREAD EASTWARD ACROSS THE SOUTHEAST MOUNTAINS AND ADJACENT PLAINS SUNDAY AND MONDAY. THERE ARE STILL SOME UNCERTAINTIES ON THE STORM STRENGTH AND TRACK AS IT MOVES ACROSS COLORADO DURING THIS TIME PERIOD. HOWEVER...THERE IS THE POSSIBILITY FOR PROLONGED LIGHT TO MODERATE SNOWFALL FOR THE SOUTHEAST MOUNTAINS AND ADJACENT PLAINS OVER THE WEEKEND...WITH SIGNIFICANT ACCUMULATIONS POSSIBLE...ESPECIALLY ABOVE 6500 FEET. THE STORM SYSTEM IS EXPECTED TO EXIT SOUTHEAST COLORADO LATE MONDAY. .SPOTTER INFORMATION STATEMENT... WEATHER CONDITIONS THAT MEET REPORTING CRITERIA FOR SPOTTERS WILL BE LIKELY OVER THE SANGRE DE CRISTO AND WET MOUNTAINS...AND THE INTERSTATE 25 CORRIDOR FROM SOUTH OF PUEBLO TO THE NEW MEXICO BORDER. THEY WILL ALSO BE LIKELY THIS AFTERNOON AND TONIGHT OVER THE HIGHER ELEVATIONS OF THE CENTRAL COLORADO MOUNTAINS. 28/27
The national radar mosaic for the moment the first event began.
6 high wind. 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, April 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: 303477, 303479, 303480, 303481, 303482, 303484.