Alert archive / Colorado / Red Flag Warnings in 2021

Red Flag Warning 31, NWS Pueblo, CO

May 7, 20215 counties in Colorado

NWS Pueblo, CO issued this red flag warning at May 7, 2021, 2:57 PM MDT for 5 counties in Colorado. It took effect at May 8, 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 7, 2021, 2:57 PM MDT (20:57 UTC)
In effect from: May 8, 2021, 11:00 AM MDT
Expired: May 8, 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 20:57 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, 9.0 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: 3536 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 110 m²/s²
0-3 km storm-relative helicity: 184 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

252 
WWUS85 KPUB 072057
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
257 PM MDT Fri May 7 2021

...Red Flag Warning in effect until 8 pm mdt today for Gusty 
Winds, Low Relative Humidity and Dry Fuels for Fire Weather Zone 
224, which includes the San Luis Valley...

...Red Flag Warning has been issued from 11 am mdt until 8 pm mdt 
Saturday for Gusty Winds, Low Relative Humidity and Dry Fuels for
Fire Weather Zone 224, which includes the San Luis Valley...

COZ224-081300-
/O.UPG.KPUB.FW.A.0018.210508T1700Z-210509T0200Z/
/O.NEW.KPUB.FW.W.0031.210508T1700Z-210509T0200Z/
/O.CON.KPUB.FW.W.0030.000000T0000Z-210508T0200Z/
San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache-
257 PM MDT Fri May 7 2021

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

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

The National Weather Service in Pueblo has issued a Red Flag
Warning for gusty winds, low relative humidity and dry fuels, 
which is in effect from 11 AM to 8 PM MDT Saturday. The Fire 
Weather Watch is no longer in effect.

* Affected Area...Fire Weather Zone 224.

* Winds...Southwest 15 to 25 mph with gusts up to 35 mph.

* Relative Humidity...As low as 11 percent.

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

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.

&&

$$

3 follow-up statements

425 
WWUS85 KPUB 080222
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
822 PM MDT Fri May 7 2021

...Red Flag Warning is in effect from 11 am mdt until 8 pm mdt 
Saturday for Gusty Winds, Low Relative Humidity, Dry Fuels, and
high Haines Indices for Fire Weather Zone 224, which includes the
San Luis Valley...

COZ224-081830-
/O.EXP.KPUB.FW.W.0030.000000T0000Z-210508T0200Z/
/O.CON.KPUB.FW.W.0031.210508T1700Z-210509T0200Z/
San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache-
822 PM MDT Fri May 7 2021

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

...RED FLAG WARNING HAS EXPIRED FOR FOR GUSTY WINDS, LOW RELATIVE
HUMIDITY, DRY FUELS, AND HIGH HAINES INDICES 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 11 percent.

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

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.

&&

$$

357 
WWUS85 KPUB 080942
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
342 AM MDT Sat May 8 2021

...Red Flag Warning is in effect from 11 am mdt 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... 
...Fire Weather Watch 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...

COZ224-090145-
/O.NEW.KPUB.FW.A.0019.210509T1700Z-210510T0200Z/
/O.CON.KPUB.FW.W.0031.210508T1700Z-210509T0200Z/
San Luis Valley Including Alamosa/Del Norte/Fort Garland/Saguache-
342 AM MDT Sat May 8 2021

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

The National Weather Service in Pueblo has issued a Fire Weather
Watch for gusty winds, low relative humidity, and high haines
indices, which is in effect from Sunday morning through Sunday
evening.

* Affected Area...Fire Weather Zone 224.

* Winds...West 15 to 25 mph with gusts up to 35 mph both today and
  Sunday.

* Relative Humidity...As low as 10 percent both today and Sunday.

* 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.

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$

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.

&&

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 7:16 AM MDT	Fire Weather Watch	PUB	Alamosa, Conejos, Costilla, Rio Grande, Saguache	8 hr
May 7, 12:02 PM MDT	Special Weather Statement	PUB	Las Animas	43 min
May 7, 12:54 PM MDT	Special Weather Statement	PUB	Baca	36 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.