Alert archive / Colorado / Red Flag Warnings in 2021

Red Flag Warning 23, NWS Pueblo, CO

April 22, 20214 counties in Colorado

NWS Pueblo, CO issued this red flag warning at Apr 22, 2021, 4:19 AM MDT for 4 counties in Colorado. It took effect at Apr 22, 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 22, 2021, 4:19 AM MDT (10:19 UTC)
In effect from
Apr 22, 2021, 12:00 PM MDT
Expired
Apr 22, 2021, 8:00 PM MDT
In force
8 hr
Issued by
NWS Pueblo, CO

Counties Baca County, CO, Bent County, CO, Las Animas County, CO, Otero County, CO

The radar

The Pueblo radar (KPUX), 118 km from the middle of the area, began a volume at 10:23 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

Denver, CO (KDNR), launched 00:00Z, 10.3 hours before the alert went out and 250 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.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2021-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2021-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 121 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
550 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
121 m²/s²
0-3 km storm-relative helicity
187 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

200 
WWUS85 KPUB 221019
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
419 AM MDT Thu Apr 22 2021

...A Red Flag Warning is in effect from noon today until 8 pm mdt
this evening for Fire Weather Zones 230...232...233...235 and 
237, which includes Baca, Otero, Bent and Las Animas Counties...

COZ230-232-233-235-237-230200-
/O.NEW.KPUB.FW.W.0023.210422T1800Z-210423T0200Z/
Western Las Animas County Including Trinidad and Thatcher-
Otero County Including La Junta and Western Comanche Grasslands-
Eastern Las Animas County Including Pinon Canyon-
Bent County Including Las Animas-
Baca County Including Springfield and Eastern Comanche Grasslands-
419 AM MDT Thu Apr 22 2021

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING FOR FIRE WEATHER ZONES 230...232...233...235 AND 237...

The National Weather Service in Pueblo has issued a Red Flag
Warning for dry fuels, strong winds and low relative humidity, 
which is in effect from noon today to 8 PM MDT this evening.

* Affected Area...Fire Weather Zones 230...232...233...235 and 
  237.

* Winds...West 15 to 25 mph with gusts up to 40 mph.

* Relative Humidity...As low as 12 percent.

* Impacts...Conditions are will be favorable for extreme 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.

&&

$$
2 follow-up statements
556 
WWUS85 KPUB 222047
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
247 PM MDT Thu Apr 22 2021

...A Red Flag Warning is in effect from until 8 pm mdt this 
evening for Fire Weather Zones 230...232...233...235 and 237, 
which includes Baca, Otero, Bent and Las Animas Counties...

COZ230-232-233-235-237-230200-
/O.CON.KPUB.FW.W.0023.000000T0000Z-210423T0200Z/
Western Las Animas County Including Trinidad and Thatcher-
Otero County Including La Junta and Western Comanche Grasslands-
Eastern Las Animas County Including Pinon Canyon-
Bent County Including Las Animas-
Baca County Including Springfield and Eastern Comanche Grasslands-
247 PM MDT Thu Apr 22 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING
FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES
230...232...233...235 AND 237...

* Affected Area...Fire Weather Zones 230...232...233...235 and 
  237.

* Winds...West 15 to 25 mph with gusts up to 40 mph.

* Relative Humidity...As low as 12 percent.

* Impacts...Conditions are will be favorable for extreme 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.

&&

$$
616 
WWUS85 KPUB 230144
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
744 PM MDT Thu Apr 22 2021

...A Red Flag Warning will expire at 8 pm mdt this evening for 
Fire Weather Zones 230...232...233...235 and 237, which includes 
Baca, Otero, Bent and Las Animas Counties...

COZ230-232-233-235-237-230245-
/O.EXP.KPUB.FW.W.0023.000000T0000Z-210423T0200Z/
Western Las Animas County Including Trinidad and Thatcher-
Otero County Including La Junta and Western Comanche Grasslands-
Eastern Las Animas County Including Pinon Canyon-
Bent County Including Las Animas-
Baca County Including Springfield and Eastern Comanche Grasslands-
744 PM MDT Thu Apr 22 2021

...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 
230...232...233... 235 AND 237...

Winds will continue to decrease and humidities will increase above
15 percent by 8 pm, therefore the Red Flag Warning will be allowed
to expire.

$$

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.