Alert archive / Colorado / Red Flag Warnings in 2011

Red Flag Warning 76, NWS Pueblo, CO

October 23, 201111 counties in Colorado

NWS Pueblo, CO issued this red flag warning at Oct 23, 2011, 2:56 PM MDT for 11 counties in Colorado. It took effect at Oct 24, 2011, 10:00 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
Oct 23, 2011, 2:56 PM MDT (20:56 UTC)
In effect from
Oct 24, 2011, 10:00 AM MDT
Expired
Oct 24, 2011, 6:45 PM MDT
In force
9 hr
Issued by
NWS Pueblo, CO

Counties Baca County, CO, Costilla County, CO, Custer County, CO, El Paso County, CO, Fremont County, CO, Huerfano County, CO, Las Animas County, CO, Prowers County, CO, Pueblo County, CO, Saguache County, CO, Teller County, CO

The radar

The Pueblo radar (KPUX), 62 km from the middle of the area, began a volume at 20:58 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 12:00Z, 8.9 hours before the alert went out and 239 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 12:00Z on 2011-10-23Temperature 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 12:00Z on 2011-10-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 103 square meters per square second.19395878Sfc1 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
2892 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
103 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

525 
WWUS85 KPUB 232056
RFWPUB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
256 PM MDT SUN OCT 23 2011

...A RED FLAG WARNING FOR GUSTY WINDS...LOW RELATIVE HUMIDITY 
VALUES AND DRY FUELS HAS BEEN ISSUED FROM 10 AM TO 7 PM MONDAY
FOR FIRE WEATHER ZONES 221...222...225...229...230...233...236 AND
237...WHICH INCLUDES THE SOUTHEAST MOUNTAINS...AND FREMONT
HUERFANO...LAS ANIMAS...PROWERS AND BACA COUNTIES...

COZ236-237-241300-
/O.UPG.KPUB.FW.A.0054.111024T1700Z-111025T0100Z/
/O.NEW.KPUB.FW.W.0076.111024T1600Z-111025T0100Z/
PROWERS COUNTY-BACA COUNTY-
256 PM MDT SUN OCT 23 2011

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MDT MONDAY FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES
236 AND 237...

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A RED FLAG
WARNING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...WHICH IS IN
EFFECT FROM 10 AM TO 7 PM MDT MONDAY. THE FIRE WEATHER WATCH IS
NO LONGER IN EFFECT. 

* AFFECTED AREA...FIRE WEATHER ZONES 236 AND 237.

* WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* RELATIVE HUMIDITY...AS LOW AS 10 PERCENT.

* IMPACTS...CONDITIONS WILL BE FAVORABLE FOR EXTREME FIRE BEHAVIOR
  WITH RAPID RATES OF FIRE SPREAD POSSIBLE...IF A FIRE SHOULD START.

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 WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

COZ221-222-225-229-230-233-241300-
/O.NEW.KPUB.FW.W.0076.111024T1600Z-111025T0100Z/
TELLER COUNTY/RAMPART RANGE-FREMONT COUNTY-SOUTHERN FRONT RANGE-
HUERFANO COUNTY-WESTERN LAS ANIMAS COUNTY-
EASTERN LAS ANIMAS COUNTY-
256 PM MDT SUN OCT 23 2011

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MDT MONDAY FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES
221...222...225...229...230 AND 233...

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A RED FLAG
WARNING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...WHICH IS IN
EFFECT FROM 10 AM TO 7 PM MDT MONDAY. 

* AFFECTED AREA...FIRE WEATHER ZONES 221...222...225...229... 
  230 AND 233.

* WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* RELATIVE HUMIDITY...AS LOW AS 8 PERCENT.

* IMPACTS...CONDITIONS WILL BE FAVORABLE FOR EXTREME FIRE BEHAVIOR
  WITH RAPID RATES OF FIRE SPREAD POSSIBLE...PARTICULARLY ACROSS
  THE LOWER EASTERN SLOPES OF THE SOUTHEAST MOUNTAINS.

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 WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$
3 follow-up statements
441 
WWUS85 KPUB 241020
RFWPUB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
420 AM MDT MON OCT 24 2011

...A RED FLAG WARNING FOR GUSTY WINDS...LOW HUMIDITIES AND DRY
FUELS IS IN EFFECT FROM 10 AM TO 7 PM TODAY FOR FIRE WEATHER ZONES
221...222...225...229...230...233...236 AND 237...WHICH INCLUDES
ALL OF THE EASTERN MOUNTAINS AND MOST OF THE PLAINS SOUTH OF THE
ARKANSAS RIVER...

COZ221-222-225-229-230-233-236-237-250100-
/O.CON.KPUB.FW.W.0076.111024T1600Z-111025T0100Z/
TELLER COUNTY/RAMPART RANGE-FREMONT COUNTY-SOUTHERN FRONT RANGE-
HUERFANO COUNTY-WESTERN LAS ANIMAS COUNTY-
EASTERN LAS ANIMAS COUNTY-PROWERS COUNTY-BACA COUNTY-
420 AM MDT MON OCT 24 2011

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
7 PM MDT THIS EVENING FOR GUSTY WINDS...LOW HUMIDITIES AND DRY
FUELS FOR FIRE WEATHER ZONES 221...222...225...229...230...233...
236 AND 237...

A RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
7 PM MDT THIS EVENING. 

* AFFECTED AREA...FIRE WEATHER ZONES 221...222...225...229...
  230...233...236 AND 237.

* WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS TO 40 MPH.

* RELATIVE HUMIDITY...9 TO 14 PERCENT.

* IMPACTS...FAVORABLE CONDITIONS FOR FIRE STARTS...GROWTH AND
  SPREAD. EXTREME FIRE BEHAVIOR WILL BE POSSIBLE...ESPECIALLY
  ACROSS THE LOWER EASTERN SLOPES OF THE EASTERN MOUNTAINS.

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 WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$
577 
WWUS85 KPUB 242140
RFWPUB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
340 PM MDT MON OCT 24 2011

...A RED FLAG WARNING FOR GUSTY WINDS...LOW HUMIDITIES AND DRY
FUELS REMAINS IN EFFECT THROUGH 7 PM TODAY FOR FIRE WEATHER ZONES
221...222...225...229...230...233...236 AND 237...WHICH INCLUDES
ALL OF THE EASTERN MOUNTAINS AND MOST OF THE PLAINS SOUTH OF THE
ARKANSAS RIVER...

COZ221-222-225-229-230-233-236-237-250100-
/O.CON.KPUB.FW.W.0076.000000T0000Z-111025T0100Z/
TELLER COUNTY/RAMPART RANGE-FREMONT COUNTY-SOUTHERN FRONT RANGE-
HUERFANO COUNTY-WESTERN LAS ANIMAS COUNTY-
EASTERN LAS ANIMAS COUNTY-PROWERS COUNTY-BACA COUNTY-
340 PM MDT MON OCT 24 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING
FOR GUSTY WINDS...LOW HUMIDITIES AND DRY FUELS FOR FIRE WEATHER
ZONES 221...222...225...229...230...233...236 AND 237...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING.

* AFFECTED AREA...FIRE WEATHER ZONES 221...222...225...229... 
  230...233...236 AND 237. 

* WINDS...SOUTHWEST 10 TO 20 MPH WITH WIND GUSTS TO 35 MPH AT TIMES.

* RELATIVE HUMIDITY...AS LOW AS 5 PERCENT AT TIMES.

* IMPACTS...FAVORABLE CONDITIONS FOR FIRE STARTS...GROWTH AND 
  SPREAD. EXTREME FIRE BEHAVIOR WILL BE POSSIBLE...ESPECIALLY 
  ACROSS THE LOWER EASTERN SLOPES OF THE EASTERN MOUNTAINS. 

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 WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$
257 
WWUS85 KPUB 250045
RFWPUB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
645 PM MDT MON OCT 24 2011

...RED FLAG WARNING CANCELLED...

COZ221-222-225-229-230-233-236-237-250145-
/O.CAN.KPUB.FW.W.0076.000000T0000Z-111025T0100Z/
TELLER COUNTY/RAMPART RANGE-FREMONT COUNTY-SOUTHERN FRONT RANGE-
HUERFANO COUNTY-WESTERN LAS ANIMAS COUNTY-
EASTERN LAS ANIMAS COUNTY-PROWERS COUNTY-BACA COUNTY-
645 PM MDT MON OCT 24 2011

...RED FLAG WARNING IS CANCELLED FOR FIRE WEATHER ZONES 221...222...
225...229...230...233...236 AND 237...

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS CANCELLED THE RED FLAG
WARNING. 

WINDS WERE DIMINISHING ACROSS MUCH OF THE AREA EARLY THIS
EVENING...AND RELATIVE HUMIDITY VALUES WERE CLIMBING BACK ABOVE 15
PERCENT AT MOST LOCATIONS. 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 23, 10:33 AM MDTFire Weather WatchPUBBaca, Prowers4 hr

Nearby

Red Flag Warnings in Colorado, 2011Every red flag warning in 2011

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.