Alert archive / Colorado / Red Flag Warnings in 2021
Red Flag Warning 21, NWS Pueblo, CO
NWS Pueblo, CO issued this red flag warning at Apr 11, 2021, 2:49 PM MDT for 5 counties in Colorado. It took effect at Apr 12, 2021, 12:00 PM MDT. It was in force for 8 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 11, 2021, 2:49 PM MDT (20:49 UTC)
- In effect from
- Apr 12, 2021, 12:00 PM MDT
- Expired
- Apr 12, 2021, 8:00 PM MDT
- In force
- 8 hr
- Issued by
- NWS Pueblo, CO
Counties Alamosa County, CO, Conejos County, CO, Costilla County, CO, Rio Grande County, CO, Saguache County, CO
The radar
The Pueblo radar (KPUX), 190 km from the middle of the area, began a volume at 20:53 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 12:00Z, 8.8 hours before the alert went out and 279 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
- 3294 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 144 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
923 WWUS85 KPUB 112049 RFWPUB URGENT - FIRE WEATHER MESSAGE National Weather Service Pueblo CO 249 PM MDT Sun Apr 11 2021 ...Red Flag Warning is in effect until 8 PM MDT this evening for gusty winds and low relative humidity for Fire Weather zones 222, 224 and 228, which includes the San Luis Valley, and Fremont and Pueblo counties... ...A Red Flag Warning is in effect from noon Monday until 8 PM Monday evening for gusty winds and low relative humidity values for fire weather zone 224 which includes the San Luis Valley... COZ224-121300- /O.UPG.KPUB.FW.A.0010.210412T1800Z-210413T0200Z/ /O.NEW.KPUB.FW.W.0021.210412T1800Z-210413T0200Z/ /O.CON.KPUB.FW.W.0020.000000T0000Z-210412T0200Z/ San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache- 249 PM MDT Sun Apr 11 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 224... ...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 224... The National Weather Service in Pueblo has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from noon to 8 PM MDT Monday. The Fire Weather Watch is no longer in effect. * Affected Area...Fire Weather Zone 224. * Winds...West 15 to 25 mph with gusts up to 35 mph. * Relative Humidity...5 to 10 percent. * Impacts...Conditions will be favorable for rapid rates of fire growth and spread today and Monday. 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. && $$ COZ222-228-120200- /O.CON.KPUB.FW.W.0020.000000T0000Z-210412T0200Z/ Fremont County Including Canon City/Howard/Texas Creek- Pueblo County Including Pueblo- 249 PM MDT Sun Apr 11 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 222 AND 228... * Affected Area...Fire Weather Zones 222 and 228. * Winds...Northeast 15 to 25 mph with gusts up to 40 mph. * Relative Humidity...5 to 10 percent. * Impacts...Conditions will be favorable for rapid rates of fire growth and spread. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
5 follow-up statements
258 WWUS85 KPUB 120010 RFWPUB URGENT - FIRE WEATHER MESSAGE National Weather Service Pueblo CO 610 PM MDT Sun Apr 11 2021 ...Red Flag Warning is in effect until 8 PM MDT this evening for gusty winds and low relative humidity for Fire Weather zone 224, which includes the San Luis Valley... ...Red Flag Warning has been canceled for Fire Weather zones 222 and 228, which includes Fremont and Pueblo Counties, due to recovering humidities. ...A Red Flag Warning is in effect from noon Monday until 8 PM Monday evening for gusty winds and low relative humidity values for fire weather zone 224 which includes the San Luis Valley... COZ222-228-120115- /O.CAN.KPUB.FW.W.0020.000000T0000Z-210412T0200Z/ Fremont County Including Canon City/Howard/Texas Creek- Pueblo County Including Pueblo- 610 PM MDT Sun Apr 11 2021 ...RED FLAG WARNING IS CANCELLED FOR FIRE WEATHER ZONES 222 AND 228... The National Weather Service in Pueblo has cancelled the Red Flag Warning. Gusty winds still exist over the area but relative humidities have recovered considerably. $$ COZ224-121615- /O.CON.KPUB.FW.W.0020.000000T0000Z-210412T0200Z/ /O.CON.KPUB.FW.W.0021.210412T1800Z-210413T0200Z/ San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache- 610 PM MDT Sun Apr 11 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONE 224... ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MDT MONDAY FOR FIRE WEATHER ZONE 224... * Affected Area...Fire Weather Zone 224. * Winds...Southwest 15 to 25 mph with gusts up to 35 mph. * Relative Humidity...As low as 7 percent. * Impacts...Conditions will be favorable for rapid rates of fire growth and spread today and Monday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
244 WWUS85 KPUB 120149 RFWPUB URGENT - FIRE WEATHER MESSAGE National Weather Service Pueblo CO 749 PM MDT Sun Apr 11 2021 ...Red Flag Warning expires at 8 PM MDT this evening for Fire Weather zone 224, which includes the San Luis Valley... ...A Red Flag Warning is in effect from noon Monday until 8 PM Monday evening for gusty winds and low relative humidity values for fire weather zone 224 which includes the San Luis Valley... COZ224-121800- /O.EXP.KPUB.FW.W.0020.000000T0000Z-210412T0200Z/ /O.CON.KPUB.FW.W.0021.210412T1800Z-210413T0200Z/ San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache- 749 PM MDT Sun Apr 11 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MDT MONDAY FOR FIRE WEATHER ZONE 224... ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONE 224... * Affected Area...Fire Weather Zone 224. * Winds...Southwest 15 to 25 mph with gusts up to 35 mph. * Relative Humidity...As low as 7 percent. * Impacts...Conditions will be favorable for rapid rates of fire growth and spread on Monday. 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. && $$
433 WWUS85 KPUB 121746 RFWPUB URGENT - FIRE WEATHER MESSAGE National Weather Service Pueblo CO 1146 AM MDT Mon Apr 12 2021 ...A Red Flag Warning is in effect from 12 PM this afternoon until 8 PM this evening for gusty winds and low relative humidity values for fire weather zone 224 which includes the San Luis Valley... COZ224-130200- /O.CON.KPUB.FW.W.0021.210412T1800Z-210413T0200Z/ San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache- 1146 AM MDT Mon Apr 12 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONE 224... * Affected Area...Fire Weather Zone 224. * Winds...West 10 to 20 mph with gusts up to 35 mph. * Relative Humidity...10 to 15 percent. * Impacts...Conditions will be favorable for rapid rates of fire growth and spread on Monday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
664 WWUS85 KPUB 122056 RFWPUB URGENT - FIRE WEATHER MESSAGE National Weather Service Pueblo CO 256 PM MDT Mon Apr 12 2021 ...A Red Flag Warning is in effect until 8 PM this evening for gusty winds and low relative humidity values for fire weather zone 224 which includes the San Luis Valley... COZ224-130200- /O.CON.KPUB.FW.W.0021.000000T0000Z-210413T0200Z/ San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache- 256 PM MDT Mon Apr 12 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONE 224... * Affected Area...Fire Weather Zone 224. * Winds...West 15 to 25 mph with gusts up to 35 mph. * Relative Humidity...10 to 15 percent. * Impacts...Conditions will be favorable for rapid rates of fire growth and spread on Monday. 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. && $$
958 WWUS85 KPUB 130135 RFWPUB URGENT - FIRE WEATHER MESSAGE National Weather Service Pueblo CO 735 PM MDT Mon Apr 12 2021 ...The Red Flag warning for the San Luis Valley...Fire weather zone 224...will expire at 8 pm this evening... COZ224-130245- /O.EXP.KPUB.FW.W.0021.000000T0000Z-210413T0200Z/ San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache- 735 PM MDT Mon Apr 12 2021 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONE 224... Winds will shift to an easterly component across the San Luis Valley during the evening hours and humidity values will increase. $$ Hodanish
The office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 3:50 AM MDT | Fire Weather Watch | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 11 hr |
Nearby
Red Flag Warnings in Colorado, 2021Every red flag warning in 2021
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.