Alert archive / Colorado / Red Flag Warnings in 2021

Red Flag Warning 32, NWS Pueblo, CO

May 8, 20215 counties in Colorado

NWS Pueblo, CO issued this red flag warning at May 8, 2021, 2:55 PM MDT for 5 counties in Colorado. It took effect at May 9, 2021, 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: May 8, 2021, 2:55 PM MDT (20:55 UTC)
In effect from: May 9, 2021, 11:00 AM MDT
Expired: May 9, 2021, 8:00 PM MDT
In force: 9 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 20:55 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, 8.9 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2590 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: -104 m²/s²
0-3 km storm-relative helicity: -4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

836 
WWUS85 KPUB 082055
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
255 PM MDT Sat May 8 2021

...A Red Flag Warning is in effect until 8 pm mdt today for gusty
winds, low relative humidity, dry fuels, and high Haines indices 
for Fire Weather Zone 224, which includes the San Luis Valley... 

...A Red Flag Warning is in effect from 11 am mdt until 8 pm mdt 
Sunday for gusty winds, low relative humidity, dry fuels, and high
Haines indices for Fire Weather Zone 224, which includes the San 
Luis Valley...

COZ224-091300-
/O.UPG.KPUB.FW.A.0019.210509T1700Z-210510T0200Z/
/O.NEW.KPUB.FW.W.0032.210509T1700Z-210510T0200Z/
/O.CON.KPUB.FW.W.0031.000000T0000Z-210509T0200Z/
San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache-
255 PM MDT Sat May 8 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING
FOR GUSTY WINDS, LOW RELATIVE HUMIDITY, DRY FUELS, AND HIGH
HAINES INDICES FOR FIRE WEATHER ZONE 224...

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT SUNDAY FOR
GUSTY WINDS, LOW RELATIVE HUMIDITY, DRY FUELS, AND HIGH
HAINES INDICES FOR FIRE WEATHER ZONE 224...

The National Weather Service in Pueblo has issued a Red Flag
Warning for gusty winds, low relative humidity, dry fuels and high
Haines Indices, which is in effect from 11 AM to 8 PM MDT Sunday.
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...As low as 10 percent.

* Impacts...Conditions will be favorable for rapid fire spread 
  and growth.

* Haines...6.

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.

&&

$$

4 follow-up statements

984 
WWUS85 KPUB 090251
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
851 PM MDT Sat May 8 2021

...A Red Flag Warning is in effect from 11 am mdt until 8 pm mdt
Sunday for gusty winds, low relative humidity, dry fuels, and
high Haines indices for Fire Weather Zone 224, which includes the
San Luis Valley...

COZ224-091900-
/O.CON.KPUB.FW.W.0032.210509T1700Z-210510T0200Z/
San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache-
851 PM MDT Sat May 8 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM MDT
SUNDAY FOR GUSTY WINDS, LOW RELATIVE HUMIDITY,  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...As low as 10 percent.

* Impacts...Conditions will be favorable for rapid fire spread 
  and growth.

* Haines...6.

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.

&&

$$

742 
WWUS85 KPUB 091005
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
405 AM MDT Sun May 9 2021

...A Red Flag Warning remains in effect from 11 am this morning 
until 8 pm this evening for gusty winds, low relative humidity
values, dry fuels, and high Haines indices for Fire Weather Zone 
224, which includes the San Luis Valley...

COZ224-100200-
/O.CON.KPUB.FW.W.0032.210509T1700Z-210510T0200Z/
San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache-
405 AM MDT Sun May 9 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
8 PM MDT THIS EVENING FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND
HIGH HAINES INDICES, FOR FIRE WEATHER ZONE 224...

* Affected Area...Fire Weather Zone 224.

* Winds...West 20 to 30 mph with gusts up to 40 mph.

* Relative Humidity...10 TO 15 percent.

* Impacts...Conditions will be favorable for rapid fire spread 
  and growth.

* Haines...6.

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.

&&

$$

356 
WWUS85 KPUB 092046
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
246 PM MDT Sun May 9 2021

...A Red Flag Warning remains in effect until 8 pm this evening 
for gusty winds, low relative humidity values, dry fuels, and high
Haines indices for Fire Weather Zone 224, which includes the San 
Luis Valley...

COZ224-100200-
/O.CON.KPUB.FW.W.0032.000000T0000Z-210510T0200Z/
San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache-
246 PM MDT Sun May 9 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING
FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND HIGH HAINES INDICES,
FOR FIRE WEATHER ZONE 224...

* Affected Area...Fire Weather Zone 224.

* Winds...West 20 to 30 mph with gusts up to 40 mph.

* Relative Humidity...As low as 9 percent.

* Impacts...Conditions will be favorable for rapid fire spread 
  and growth.

* Haines...6.

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.

&&

$$

593 
WWUS85 KPUB 100142
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
742 PM MDT Sun May 9 2021

COZ224-100245-
/O.EXP.KPUB.FW.W.0032.000000T0000Z-210510T0200Z/
San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache-
742 PM MDT Sun May 9 2021

...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR GUSTY
WINDS, LOW RELATIVE HUMIDITY, DRY FUELS, AND HIGH HAINES INDICES 
FOR FIRE WEATHER ZONE 224...

Relative humidity values have increased due to diurnal cooling,
therefore the Red Flag Warning has been allowed to expire. There
may be pockets of critical fire weather conditions around the San
Luis Valley, but it is not widespread enough to extend the
warning.

$$

The office that day

Everything else NWS Pueblo, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 8, 3:42 AM MDT	Fire Weather Watch	PUB	Alamosa, Conejos, Costilla, Rio Grande, Saguache	11 hr
May 8, 4:54 PM MDT	Special Weather Statement	PUB	El Paso	21 min
May 8, 5:44 PM MDT	Special Weather Statement	PUB	Crowley, Kiowa	61 min
May 8, 5:50 PM MDT	Special Weather Statement	PUB	Otero	55 min
May 8, 5:52 PM MDT	Special Weather Statement	PUB	Pueblo	53 min

Nearby

Red Flag Warnings in Colorado, 2021 Every 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.