Alert archive / Colorado / Red Flag Warnings in 2020
Red Flag Warning 48, NWS Pueblo, CO
NWS Pueblo, CO issued this red flag warning at Aug 20, 2020, 4:36 AM MDT for 6 counties in Colorado. It took effect at Aug 20, 2020, 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
- Aug 20, 2020, 4:36 AM MDT (10:36 UTC)
- In effect from
- Aug 20, 2020, 12:00 PM MDT
- Expired
- Aug 20, 2020, 7:42 PM MDT
- In force
- 8 hr
- Issued by
- NWS Pueblo, CO
Counties Chaffee County, CO, Conejos County, CO, Lake County, CO, Mineral County, CO, Rio Grande County, CO, Saguache County, CO
The radar
The Grand Junction radar (KGJX), 193 km from the middle of the area, began a volume at 10:38 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, 10.6 hours before the alert went out and 218 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
- 18 J/kg
- Mixed-layer CIN
- -88 J/kg
- Mixed-layer LCL
- 4051 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- -18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
172 WWUS85 KPUB 201036 RFWPUB URGENT - FIRE WEATHER MESSAGE National Weather Service Pueblo CO 436 AM MDT Thu Aug 20 2020 ...Red Flag Warning in effect from noon today to 9 PM this evening for low relative humidity, and dry lightning with localized gusty winds for fire weather zones 220 and 223, which includes the Eastern San Juan and La Garita Mountains... COZ220-223-210245- /O.NEW.KPUB.FW.W.0048.200820T1800Z-200821T0300Z/ Upper Arkansas River Valley Including Lake County and Chaffee County- Eastern San Juan Mountains and La Garita Mountains Including Wolf Creek Pass and Creede- 436 AM MDT Thu Aug 20 2020 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR LOW RELATIVE HUMIDITY, AND DRY LIGHTNING WITH LOCALIZED GUSTY WINDS FOR FIRE WEATHER ZONES 220 AND 223... The National Weather Service in Pueblo has issued a Red Flag Warning for low relative humidity, and dry lightning with localized gusty winds, which is in effect from noon today to 9 PM MDT this evening. * Affected Area...Fire Weather Zones 220 and 223. * Winds...Northwest 10 to 15 mph with gusts up to 25 mph, with localized higher gusts. * Relative Humidity...As low as 15 percent. * Lightning...Isolated to scattered thunderstorms with dry lightning are expected over the higher terrain. * Impacts...Dry lightning, localized gusty winds, and minimal precipitation may cause new fire starts and rapid spread of fires. 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. && $$
2 follow-up statements
735 WWUS85 KPUB 210116 RFWPUB URGENT - FIRE WEATHER MESSAGE National Weather Service Pueblo CO 716 PM MDT Thu Aug 20 2020 ...Red Flag Warning in effect until 9 PM for low relative humidity, and dry lightning with localized gusty winds for fire weather zones 220 and 223, which includes the Eastern San Juan and La Garita Mountains... COZ220-223-210300- /O.CON.KPUB.FW.W.0048.000000T0000Z-200821T0300Z/ Upper Arkansas River Valley Including Lake County and Chaffee County- Eastern San Juan Mountains and La Garita Mountains Including Wolf Creek Pass and Creede- 716 PM MDT Thu Aug 20 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS, LOW RELATIVE HUMIDITY, AND LOCALIZED GUSTY WINDS FOR FIRE WEATHER ZONES 220 AND 223... * Affected Area...Fire Weather Zones 220 and 223. * Winds...Northwest 10 to 15 mph with gusts up to 25 mph. * Relative Humidity...As low as 16 percent. * Lightning...Isolated to scattered thunderstorms with dry lightning are expected over the higher terrain. * Impacts...Dry lightning, localized gusty winds, and minimal precipitation may cause new fire starts and rapid spread of fires. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
857 WWUS85 KPUB 210142 RFWPUB URGENT - FIRE WEATHER MESSAGE National Weather Service Pueblo CO 742 PM MDT Thu Aug 20 2020 ...Red Flag Warning for Fire Zones 220 and 220 cancelled.. COZ220-223-210245- /O.CAN.KPUB.FW.W.0048.000000T0000Z-200821T0300Z/ Upper Arkansas River Valley Including Lake County and Chaffee County- Eastern San Juan Mountains and La Garita Mountains Including Wolf Creek Pass and Creede- 742 PM MDT Thu Aug 20 2020 ...RED FLAG WARNING IS CANCELLED FOR DRY THUNDERSTORMS, LOW RELATIVE HUMIDITY, AND LOCALIZED GUSTY WINDS FOR FIRE WEATHER ZONES 220 AND 223... The National Weather Service in Pueblo has cancelled the Red Flag Warning. $$
The office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 9:13 PM MDT | Special Weather Statement | PUB | Las Animas | 32 min |
| Aug 20, 4:20 PM MDT | Special Weather Statement | PUB | Teller | 25 min |
| Aug 20, 4:40 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 35 min |
| Aug 20, 4:50 PM MDT | Special Weather Statement | PUB | Teller | 25 min |
| Aug 20, 5:03 PM MDT | Special Weather Statement | PUB | Las Animas | 27 min |
| Aug 20, 5:12 PM MDT | Special Weather Statement | PUB | El Paso | 33 min |
| Aug 20, 5:13 PM MDT | Special Weather Statement | PUB | El Paso | 32 min |
| Aug 20, 5:14 PM MDT | Special Weather Statement | PUB | El Paso | 46 min |
| Aug 20, 5:23 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 37 min |
| Aug 20, 5:28 PM MDT | Flash Flood Warning | PUB | El Paso | 68 min |
| Aug 20, 5:52 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 23 min |
Nearby
Red Flag Warnings in Colorado, 2020Every red flag warning in 2020
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.