Alert archive / Colorado / Red Flag Warnings in 2026
Red Flag Warning 46, NWS Pueblo, CO
NWS Pueblo, CO issued this red flag warning at Apr 22, 2026, 12:20 AM MDT for 20 counties in Colorado. It took effect at Apr 23, 2026, 11:00 AM MDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 22, 2026, 12:20 AM MDT (06:20 UTC)
- In effect from
- Apr 23, 2026, 11:00 AM MDT
- Expired
- Apr 23, 2026, 8:02 PM MDT
- In force
- 9 hr
- Issued by
- NWS Pueblo, CO
Counties Alamosa County, CO, Baca County, CO, Bent County, CO, Chaffee County, CO, Conejos County, CO, Costilla County, CO, Crowley County, CO, Custer County, CO, El Paso County, CO, Fremont County, CO, Huerfano County, CO, Kiowa County, CO, Lake County, CO, Las Animas County, CO, Otero County, CO, Prowers County, CO, Pueblo County, CO, Rio Grande County, CO, Saguache County, CO, Teller County, CO
The radar
The Pueblo radar (KPUX), 67 km from the middle of the area, began a volume at 06:21 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Grand Junction, CO (KGJT), launched 00:00Z, 6.3 hours before the alert went out and 348 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3674 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
325 WWUS85 KPUB 220620 RFWPUB URGENT - FIRE WEATHER MESSAGE National Weather Service Pueblo CO 1220 AM MDT Wed Apr 22 2026 COZ221-222-224>237-222230- /O.UPG.KPUB.FW.A.0040.260423T1700Z-260424T0300Z/ /O.NEW.KPUB.FW.W.0046.260423T1700Z-260424T0300Z/ /O.CON.KPUB.FW.W.0045.260422T1600Z-260423T0600Z/ Teller County/Rampart Range Including Pikes Peak and Florissant Fossil Beds National Monument- Fremont County Including Canon City/Howard/Texas Creek- San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache- Southern Front Range Including Sangre De Cristo Mountains/Wet Mountains/La Veta Pass- Northern El Paso County Including Monument and Black Forest- Southern El Paso County Including Fort Carson and Colorado Springs-Pueblo County Including Pueblo- Huerfano County Including Walsenburg- Western Las Animas County Including Trinidad and Thatcher- Crowley County Including Ordway- Otero County Including La Junta and Western Comanche Grasslands- Eastern Las Animas County Including Pinon Canyon- Kiowa County Including Eads-Bent County Including Las Animas- Prowers County Including Lamar- Baca County Including Springfield and Eastern Comanche Grasslands- 1220 AM MDT Wed Apr 22 2026 ...THIS IS A PARTICULARLY DANGEROUS SITUATION TODAY FOR ZONES 224 AND 225... ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO MIDNIGHT MDT TONIGHT FOR FIRE WEATHER ZONES 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, AND 237... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 9 PM MDT THURSDAY FOR FOR FIRE WEATHER ZONES 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, AND 237... The National Weather Service in Pueblo has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 11 AM to 9 PM MDT Thursday. The Fire Weather Watch is no longer in effect. * THIS IS A PARTICULARLY DANGEROUS SITUATION TODAY FOR ZONES 224 AND 225 * AFFECTED AREA...Fire Weather Zones 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236 and 237. * TIMING...For the first Red Flag Warning, from 10 AM this morning to midnight MDT tonight. For the second Red Flag Warning, from 11 AM to 9 PM MDT Thursday. * WINDS...For Zone 224 today, west-southwest 30 to 40 mph with gusts to 60 mph. For Zone 225 today, west-southwest 30 to 40 mph with gusts to 55 mph. For all remaining zones today, west- southwest 20 to 30 mph with gusts up to 40 mph. For all zones on Thursday, west 20 to 30 mph with gusts up to 40 mph, becoming northwest in the afternoon. * RELATIVE HUMIDITY...As low as 6 percent. * IMPACTS...Extreme fire danger is expected. Fires will uncontrollably spread and be very destructive. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a Particularly Dangerous Situation that poses a significant threat to life and property for both rural and urban environments in the event of a wildfire start or existing fire. In some cases, safe and timely evacuation may not be possible should a fire approach. A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ COZ220-222230- /O.CON.KPUB.FW.W.0045.260422T1600Z-260423T0600Z/ Upper Arkansas River Valley Including Lake County and Chaffee County- 1220 AM MDT Wed Apr 22 2026 ...THIS IS A PARTICULARLY DANGEROUS SITUATION FOR ZONE 220 TODAY... ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO MIDNIGHT MDT TONIGHT FOR FIRE WEATHER ZONE 220... * THIS IS A PARTICULARLY DANGEROUS SITUATION * AFFECTED AREA...Fire Weather Zone 220. * TIMING...From 10 AM this morning to midnight MDT tonight. * WINDS...Southwest 25 to 35 mph with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Extreme fire danger is expected. Fires will uncontrollably spread and be very destructive. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a Particularly Dangerous Situation that poses a significant threat to life and property for both rural and urban environments in the event of a wildfire start or existing fire. In some cases, safe and timely evacuation may not be possible should a fire approach. Avoid debris burning, campfires, and any outdoor activity or use of equipment that could produce a spark. Follow all local fire restrictions. Visit ready.gov/wildfires#preparedness for tips on how to prepare for a wildfire. && $$
5 follow-up statements
921 WWUS85 KPUB 221957 RFWPUB URGENT - FIRE WEATHER MESSAGE National Weather Service Pueblo CO 157 PM MDT Wed Apr 22 2026 COZ221-222-224>237-231200- /O.CON.KPUB.FW.W.0045.000000T0000Z-260423T0600Z/ /O.CON.KPUB.FW.W.0046.260423T1700Z-260424T0300Z/ Teller County/Rampart Range Including Pikes Peak and Florissant Fossil Beds National Monument- Fremont County Including Canon City/Howard/Texas Creek- San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache- Southern Front Range Including Sangre De Cristo Mountains/Wet Mountains/La Veta Pass- Northern El Paso County Including Monument and Black Forest- Southern El Paso County Including Fort Carson and Colorado Springs-Pueblo County Including Pueblo- Huerfano County Including Walsenburg- Western Las Animas County Including Trinidad and Thatcher- Crowley County Including Ordway- Otero County Including La Junta and Western Comanche Grasslands- Eastern Las Animas County Including Pinon Canyon- Kiowa County Including Eads-Bent County Including Las Animas- Prowers County Including Lamar- Baca County Including Springfield and Eastern Comanche Grasslands- 157 PM MDT Wed Apr 22 2026 ...THIS IS A PARTICULARLY DANGEROUS SITUATION TODAY FOR ZONES 224 AND 225... ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR FIRE WEATHER ZONES 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, AND 237... ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 9 PM MDT THURSDAY FOR FIRE WEATHER ZONES 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, AND 237... * THIS IS A PARTICULARLY DANGEROUS SITUATION TODAY FOR ZONES 224 AND 225 * AFFECTED AREA...Fire Weather Zones 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236 and 237. * TIMING...For the first Red Flag Warning, until midnight MDT tonight. For the second Red Flag Warning, from 11 AM to 9 PM MDT Thursday. * WINDS...West 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 6 percent. * IMPACTS...Elevated fire danger is expected. Fires will catch and spread rapidly and erratically. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a Particularly Dangerous Situation that poses a significant threat to life and property for both rural and urban environments in the event of a wildfire start or existing fire. In some cases, safe and timely evacuation may not be possible should a fire approach. A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ COZ220-230600- /O.CON.KPUB.FW.W.0045.000000T0000Z-260423T0600Z/ Upper Arkansas River Valley Including Lake County and Chaffee County- 157 PM MDT Wed Apr 22 2026 ...THIS IS A PARTICULARLY DANGEROUS SITUATION FOR ZONE 220 TODAY... ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR FIRE WEATHER ZONE 220... * THIS IS A PARTICULARLY DANGEROUS SITUATION * AFFECTED AREA...Fire Weather Zone 220. * TIMING...Until midnight MDT tonight. * WINDS...West 25 to 35 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Extreme fire danger is expected. Fires will uncontrollably spread and be very destructive. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a Particularly Dangerous Situation that poses a significant threat to life and property for both rural and urban environments in the event of a wildfire start or existing fire. In some cases, safe and timely evacuation may not be possible should a fire approach. Avoid debris burning, campfires, and any outdoor activity or use of equipment that could produce a spark. Follow all local fire restrictions. Visit ready.gov/wildfires#preparedness for tips on how to prepare for a wildfire. && $$
641 WWUS85 KPUB 230502 RFWPUB URGENT - FIRE WEATHER MESSAGE National Weather Service Pueblo CO 1102 PM MDT Wed Apr 22 2026 COZ220-232115- /O.CAN.KPUB.FW.W.0045.000000T0000Z-260423T0600Z/ /O.NEW.KPUB.FW.A.0041.260424T1700Z-260425T0300Z/ /O.EXA.KPUB.FW.W.0046.260423T1700Z-260424T0300Z/ Upper Arkansas River Valley Including Lake County and Chaffee County- 1102 PM MDT Wed Apr 22 2026 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 9 PM MDT THURSDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 220... ...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 220... ...RED FLAG WARNING FOR THIS EVENING IS CANCELLED... The National Weather Service in Pueblo has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 11 AM to 9 PM MDT Thursday. A Fire Weather Watch has also been issued. This Fire Weather Watch for gusty winds and low relative humidity is in effect from Friday morning through Friday evening. The Red Flag Warning for this evening has been cancelled. * AFFECTED AREA...Fire Weather Zone 220. * TIMING...For the Red Flag Warning, from 11 AM to 9 PM MDT Thursday. For the Fire Weather Watch, from Friday morning through Friday evening. * WINDS...West 20 to 30 mph with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Extreme fire danger is expected. Fires will uncontrollably spread and be very destructive. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$ COZ221-222-224>237-232115- /O.CAN.KPUB.FW.W.0045.000000T0000Z-260423T0600Z/ /O.NEW.KPUB.FW.A.0041.260424T1700Z-260425T0300Z/ /O.CON.KPUB.FW.W.0046.260423T1700Z-260424T0300Z/ Teller County/Rampart Range Including Pikes Peak and Florissant Fossil Beds National Monument- Fremont County Including Canon City/Howard/Texas Creek- San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache- Southern Front Range Including Sangre De Cristo Mountains/Wet Mountains/La Veta Pass- Northern El Paso County Including Monument and Black Forest- Southern El Paso County Including Fort Carson and Colorado Springs-Pueblo County Including Pueblo- Huerfano County Including Walsenburg- Western Las Animas County Including Trinidad and Thatcher- Crowley County Including Ordway- Otero County Including La Junta and Western Comanche Grasslands- Eastern Las Animas County Including Pinon Canyon- Kiowa County Including Eads-Bent County Including Las Animas- Prowers County Including Lamar- Baca County Including Springfield and Eastern Comanche Grasslands- 1102 PM MDT Wed Apr 22 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 9 PM MDT THURSDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, AND 237... ...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, AND 237... ...RED FLAG WARNING FOR THIS EVENING IS CANCELLED... The National Weather Service in Pueblo has issued a Fire Weather Watch for gusty winds and low relative humidity, which is in effect from Friday morning through Friday evening. The Red Flag Warning for this evening has been cancelled. * AFFECTED AREA...Fire Weather Zones 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236 and 237. * TIMING...For the Red Flag Warning, from 11 AM to 9 PM MDT Thursday. For the Fire Weather Watch, from Friday morning through Friday evening. * WINDS...West 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 7 percent. * IMPACTS...Elevated fire danger is expected. Fires will catch and spread rapidly and erratically. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$
394 WWUS85 KPUB 230738 RFWPUB URGENT - FIRE WEATHER MESSAGE National Weather Service Pueblo CO 138 AM MDT Thu Apr 23 2026 COZ220>222-224>237-232345- /O.CON.KPUB.FW.W.0046.260423T1700Z-260424T0300Z/ /O.CON.KPUB.FW.A.0041.260424T1700Z-260425T0300Z/ Upper Arkansas River Valley Including Lake County and Chaffee County- Teller County/Rampart Range Including Pikes Peak and Florissant Fossil Beds National Monument- Fremont County Including Canon City/Howard/Texas Creek- San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache- Southern Front Range Including Sangre De Cristo Mountains/Wet Mountains/La Veta Pass- Northern El Paso County Including Monument and Black Forest- Southern El Paso County Including Fort Carson and Colorado Springs-Pueblo County Including Pueblo- Huerfano County Including Walsenburg- Western Las Animas County Including Trinidad and Thatcher- Crowley County Including Ordway- Otero County Including La Junta and Western Comanche Grasslands- Eastern Las Animas County Including Pinon Canyon- Kiowa County Including Eads-Bent County Including Las Animas- Prowers County Including Lamar- Baca County Including Springfield and Eastern Comanche Grasslands- 138 AM MDT Thu Apr 23 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 220, 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, AND 237... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 220, 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, AND 237... * AFFECTED AREA...Fire Weather Zones 220, 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236 and 237. * TIMING...For the Red Flag Warning, from 11 AM this morning to 9 PM MDT this evening. For the Fire Weather Watch, from Friday morning through Friday evening. * WINDS...West 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 7 percent. * IMPACTS...Elevated fire danger is expected. Fires will catch and spread rapidly and erratically. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$
551 WWUS85 KPUB 231815 RFWPUB URGENT - FIRE WEATHER MESSAGE National Weather Service Pueblo CO 1215 PM MDT Thu Apr 23 2026 COZ220>222-224>237-241015- /O.UPG.KPUB.FW.A.0041.260424T1700Z-260425T0300Z/ /O.NEW.KPUB.FW.W.0047.260424T1700Z-260425T0300Z/ /O.CON.KPUB.FW.W.0046.000000T0000Z-260424T0300Z/ Upper Arkansas River Valley Including Lake County and Chaffee County- Teller County/Rampart Range Including Pikes Peak and Florissant Fossil Beds National Monument- Fremont County Including Canon City/Howard/Texas Creek- San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache- Southern Front Range Including Sangre De Cristo Mountains/Wet Mountains/La Veta Pass- Northern El Paso County Including Monument and Black Forest- Southern El Paso County Including Fort Carson and Colorado Springs-Pueblo County Including Pueblo- Huerfano County Including Walsenburg- Western Las Animas County Including Trinidad and Thatcher- Crowley County Including Ordway- Otero County Including La Junta and Western Comanche Grasslands- Eastern Las Animas County Including Pinon Canyon- Kiowa County Including Eads-Bent County Including Las Animas- Prowers County Including Lamar- Baca County Including Springfield and Eastern Comanche Grasslands- 1215 PM MDT Thu Apr 23 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 220, 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, AND 237... ...RED FLAG WARNING HAS BEEN ISSUED FROM 11 AM TO 9 PM MDT FRIDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 220, 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, AND 237... The National Weather Service in Pueblo has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 11 AM to 9 PM MDT Friday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 220, 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236 and 237. * TIMING...For the first Red Flag Warning, until 9 PM MDT this evening. For the second Red Flag Warning, from 11 AM to 9 PM MDT Friday. * WINDS...West 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 7 percent. * IMPACTS...Elevated fire danger is expected. Fires will catch and spread rapidly and erratically. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
247 WWUS85 KPUB 240202 RFWPUB URGENT - FIRE WEATHER MESSAGE National Weather Service Pueblo CO 802 PM MDT Thu Apr 23 2026 COZ220>222-224>237-241815- /O.CAN.KPUB.FW.W.0046.000000T0000Z-260424T0300Z/ /O.CON.KPUB.FW.W.0047.260424T1700Z-260425T0300Z/ Upper Arkansas River Valley Including Lake County and Chaffee County- Teller County/Rampart Range Including Pikes Peak and Florissant Fossil Beds National Monument- Fremont County Including Canon City/Howard/Texas Creek- San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache- Southern Front Range Including Sangre De Cristo Mountains/Wet Mountains/La Veta Pass- Northern El Paso County Including Monument and Black Forest- Southern El Paso County Including Fort Carson and Colorado Springs-Pueblo County Including Pueblo- Huerfano County Including Walsenburg- Western Las Animas County Including Trinidad and Thatcher- Crowley County Including Ordway- Otero County Including La Junta and Western Comanche Grasslands- Eastern Las Animas County Including Pinon Canyon- Kiowa County Including Eads-Bent County Including Las Animas- Prowers County Including Lamar- Baca County Including Springfield and Eastern Comanche Grasslands- 802 PM MDT Thu Apr 23 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 9 PM MDT FRIDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 220, 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, AND 237... ...RED FLAG WARNING FOR TODAY HAS BEEN CANCELLED... The National Weather Service in Pueblo has cancelled the Red Flag Warning for today. The Red Flag Warning for Friday remains in effect. * AFFECTED AREA...Fire Weather Zones 220, 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236 and 237. * TIMING...From 11 AM to 9 PM MDT Friday. * WINDS...West 10 to 20 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 7 percent. * IMPACTS...Elevated fire danger is expected. Fires will catch and spread rapidly and erratically. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
What forecasters said that day
The local office's own words before this red flag warning went out, 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 this red flag warning went out at Apr 21, 10:54 PM MDT, 1 hour 26 minutes earlier. Its key messages:
- A Particularly Dangerous Situation Red Flag Warning is expected for Wednesday across the San Luis Valley, the central mountains, and the Sangre de Cristos (fire weather zones 220, 224, and 225)
- Continued fire weather concerns are likely for Thursday and Friday
- A pattern change towards cooler and more active weather is expected for the weekend into early next week
Area forecast discussion, Apr 21, 10:54 PM MDT, 1 hour 26 minutes before
Area Forecast Discussion National Weather Service Pueblo CO 1054 PM MDT Tue Apr 21 2026 .KEY MESSAGES... - A Particularly Dangerous Situation Red Flag Warning is expected for Wednesday across the San Luis Valley, the central mountains, and the Sangre de Cristos (fire weather zones 220, 224, and 225) - Continued fire weather concerns are likely for Thursday and Friday - A pattern change towards cooler and more active weather is expected for the weekend into early next week && .SHORT TERM /THROUGH WEDNESDAY NIGHT/... Issued at 106 PM MDT Tue Apr 21 2026 Rest of Today and Tonight.. Warmer than normal temperatures are present this afternoon. Relative humidity values are very low, generally in the single digit to low teens range. Winds are below critical thresholds this afternoon though. Some very spotty showers will be possible over the San Juans and the central mountains this afternoon and early this evening, but appreciable moisture is not expected. Overnight low temperatures will be much warmer than normal with our incoming trough and increasing southwest flow over the region. Most of our plains looks to only cool into the middle and upper 40s, with 50s likely over the banana belt region where downsloping will be strongest. Tomorrow.. A Particularly Dangerous Situation Red Flag Warning is expected for Wednesday across the San Luis Valley, the central mountains, and the Sangre de Cristos (fire weather zones 220, 224, and 225)... Models have kept the incoming trough a bit to our north, with strongest jet support for high winds located over northwest Colorado and the Great Basin. High wind potential over southern Colorado will be equally as terrain driven as jet driven, with strongest winds expected over the San Luis Valley, the Sangres, and the central mountains. A High Wind Warning has been issued for northern and central portions of the San Luis Valley, where gusts to 60 mph will be possible. The San Luis Valley, the central mountains, and the Sangres are also expected to see Particularly Dangerous Situation Red Flag conditions tomorrow, with single digit relative humidity values coupling with these very strong winds and warmer than normal temperatures. Highest winds and lowest rh values are expected to coincide in the valleys of these zones, over the Upper Arkansas River Valley, the Wet Mountain Valley, and of course, the San Luis Valley. Blowing dust will also be a concern in the San Luis Valley, and could be a concern on our plains as well. Winds will not be as strong on the plains given jet placement, but Red Flag criteria and wind gusts to around 35 or 40 mph are still expected across our lower elevation locations. Temperatures of around 15 to 20 degrees warmer than normal are expected, though all three of our climate sites are currently forecast to remain around 4 to 6 degrees below standing records. Highs look to climb into the 70s over mountain valleys, with 80s and low 90s on the plains. Winds remain elevated well into the overnight hours, especially over the high country, which keeps tomorrow's Red Flag Warning in place through midnight. Continued overnight mixing will keep overnight moisture recoveries poor. && .LONG TERM /THURSDAY THROUGH TUESDAY/... Issued at 106 PM MDT Tue Apr 21 2026 Thursday.. Mid-level flow weakens heading into Thursday, and temperatures will be several degrees cooler as well. That said, most of the area still looks to meet critical fire weather conditions on Thursday afternoon for several hours, despite a marked improvement from tomorrow's expected conditions. For now, have kept Thursday's Fire Weather Watch in place as is, and will continue to monitor forecast changes and any trends that could dictate changes for Thursday. Other than potential fire weather concerns, expect temperatures in the 60s for mountain valleys, with 70s and low 80s on the plains. Light snow showers will be possible as well, mainly over the central mountains, though a few flakes or rain drops may also be possible over the higher terrain of the Pikes Peak region. Friday Onwards.. Winds remain elevated on Friday as an upper low sits over the northern plains. Westerly winds gusting over 25 mph look to remain possible over much of the region, along with continued low relative humidity values. Another day of critical weather conditions looks likely for Friday, though highlights have not been issued quite yet. Flow aloft weakens on Saturday, and eventually transitions to southwest flow by Sunday. A few weak disturbances look to move across the region through the weekend, bringing chances for snow to the high country, and showers and thunderstorms to the plains if the trend persists. Temperatures look to remain cooler, with highs near normal and into the 70s on the plains. Another ridge looks to build over the region from Tuesday onwards. && .AVIATION /06Z TAFS THROUGH 06Z THURSDAY/... Issued at 1054 PM MDT Tue Apr 21 2026 KCOS, KPUB, and KALS: VFR conditions are expected over the next 24 hours. Winds will remain relatively light, less than 10 knots, overnight and into early tomorrow morning. By mid to late morning, winds will start to increase in magnitude as diurnal mixing develops, and peak during the afternoon hours, with gusts up to 40 knots possible, particularly for KALS. In addition, blowing dust may also be possible tomorrow afternoon as the strongest winds materialize, which could quickly drop visibility conditions. Otherwise, dry conditions with pockets of high level clouds continue. && .PUB WATCHES/WARNINGS/ADVISORIES... Red Flag Warning from 10 AM Wednesday to midnight MDT Wednesday night for COZ220>222-224>237. High Wind Warning from 1 PM to 8 PM MDT Wednesday for COZ069- 070. Fire Weather Watch from Thursday morning through Thursday evening for COZ221-222-224>237. && SHORT TERM...EHR LONG TERM...EHR AVIATION...SIMCOE
Hazardous weather outlook, Apr 21, 12:33 PM MDT, 11 hours 47 minutes before
Hazardous Weather Outlook National Weather Service Pueblo CO 1233 PM MDT Tue Apr 21 2026 COZ058>089-093>099-221845- Western Mosquito Range/East Lake County Above 11000 Feet- Leadville Vicinity/Lake County Below 11000 Feet- Eastern Sawatch Mountains Above 11000 Feet- Western Chaffee County Between 9000 and 11000 Feet- Central Chaffee County Below 9000 Feet- Western Mosquito Range/East Chaffee County Above 9000 Feet- Saguache County West of Continental Divide Below 10000 Feet- Saguache County East of Continental Divide Below 10000 Feet- La Garita Mountains Above 10000 Feet- Upper Rio Grande Valley/Eastern San Juan Mountains Below 10000 Feet-Eastern San Juan Mountains Above 10000 Feet- Del Norte Vicinity/Northern San Luis Valley Below 8500 Feet- Alamosa Vicinity/Central San Luis Valley Below 8500 Feet- Southern San Luis Valley- Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet- Northern Sangre de Cristo Mountains Above 11000 Feet- Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet- Southern Sangre de Cristo Mountains Above 11000 Feet- Northwestern Fremont County Above 8500 Feet- Western/Central Fremont County Below 8500 Feet- Wet Mountain Valley Below 8500 Feet- Wet Mountains between 6300 and 10000 Feet- Wet Mountains Above 10000 Feet- Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between 7500 And 11000 Feet-Pikes Peak Above 11000 Feet- Canon City Vicinity/Eastern Fremont County- Northern El Paso County/Monument Ridge/Rampart Range Below 7500 Feet- Colorado Springs Vicinity/Southern El Paso County/Rampart Range Below 7400 Feet-Pueblo Vicinity/Pueblo County Below 6300 Feet- Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet- Trinidad Vicinity/Western Las Animas County Below 7500 Feet- 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- 1233 PM MDT Tue Apr 21 2026 This hazardous weather outlook is for portions of central...east central...south central and southeast Colorado. .DAY ONE...This Afternoon and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday A RED FLAG WARNING is in effect for the all of the region except the San Juan Mountains tomorrow afternoon and evening. A PARTICULAR DANGEROUS SITUATION RED FLAG WARNING is in effect tomorrow afternoon and evening for the San Luis Valley, the Upper Arkansas River Valley, the Wet Mountain valley and all of the Wet mountains and Sangre De Cristo Mountains. Very strong winds of 20 to 40 mph with localized gusts to 65 mph are expected, and relative humidity values will be in the single digits. The strongest winds are expected to occur in the San Luis valley and the Wet mountain valley. Please do not do anything which could cause a spark and start a wild fire. Areas of blowing dust will be likely tomorrow across the region. Visibility may be reduced to near zero at times. Damaging winds will be possible tomorrow, with the best chance of damaging winds in the San Luis Valley. Critical fire weather conditions will once again occur on Thursday, but the winds are not expected to be as strong as Wednesday. Shower chances then increase area-wide from late Friday through the weekend into early next week as a weather system moves across the region, with the greatest chance for precipitation occuring on Sunday into Sunday night. Snow will be possible at times over the higher elevations, with a risk of isolated thunderstorms as well on Saturday and Sunday. .SPOTTER INFORMATION STATEMENT... Weather spotters will not be needed today or tonight. Hodanish
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Red Flag Warnings in Colorado, 2026Every red flag warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.