Alert archive / Colorado / Red Flag Warnings in 2007

Red Flag Warning 4, NWS Pueblo, CO

October 20, 200715 counties in Colorado

NWS Pueblo, CO issued this red flag warning at Oct 20, 2007, 4:35 AM MDT for 15 counties in Colorado. It took effect at Oct 20, 2007, 11:00 AM 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
Oct 20, 2007, 4:35 AM MDT (10:35 UTC)
In effect from
Oct 20, 2007, 11:00 AM MDT
Expired
Oct 20, 2007, 7:00 PM MDT
In force
8 hr
Issued by
NWS Pueblo, CO

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

The radar

The Pueblo radar (KPUX), 46 km from the middle of the area, began a volume at 10:33 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, 10.6 hours before the alert went out and 221 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 2007-10-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 joules per kilogram.LCLLFCEL10008507005003002001001 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 2007-10-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 171 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
15 J/kg
Mixed-layer CIN
-264 J/kg
Mixed-layer LCL
2789 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
171 m²/s²
0-3 km storm-relative helicity
276 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.3

Open this sounding in Storm Lab

The text

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

000 
WWUS85 KPUB 201035
RFWPUB

RED FLAG WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
435 AM MDT SAT OCT 20 2007

...RED FLAG WARNING FOR SUSTAINED WIND SPEEDS AND GUSTS...LOW RELATIVE
HUMIDITIES...HIGH HAINES VALUES...AND DRY FUELS...HAS BEEN ISSUED
FROM 1100 AM TO 700 PM SATURDAY...FOR ELEVATIONS BELOW 8500 FEET
IN FIRE WEATHER ZONES 221...222...225..AND 226 THROUGH 237...WHICH
INCLUDES THE LOWER EASTERN SLOPES OF THE SANGRE DE CRISTO
MOUNTAINS...WET MOUNTAINS...PIKES PEAK...AND FREMONT COUNTY...AND
ALL OF THE SOUTHEAST PLAINS...

.THE NATIONAL WEATHER SERVICE IN COORDINATION WITH AREA LAND
MANAGEMENT AGENCIES...HAS ISSUED A RED FLAG WARNING. STRONG WEST
WINDS ARE EXPECTED TO SPREAD ACROSS SOUTH CENTRAL AND SOUTHEAST
COLORADO TODAY. THE WINDS...IN COMBINATION WITH LOW DAY TIME
RELATIVE HUMIDITIES...HIGH HAINES VALUES...AND DRY FUELS...WILL
RESULT IN CONDITIONS FAVORABLE FOR EXTREME FIRE BEHAVIOR.

COZ221-222-225>237-210100-
/O.UPG.KPUB.FW.A.0002.071020T1700Z-071021T0100Z/
/O.NEW.KPUB.FW.W.0004.071020T1700Z-071021T0100Z/
TELLER COUNTY/RAMPART RANGE-FREMONT COUNTY-SOUTHERN FRONT RANGE-
NORTHERN EL PASO COUNTY-SOUTHERN EL PASO COUNTY-PUEBLO COUNTY-
HUERFANO COUNTY-WESTERN LAS ANIMAS COUNTY-CROWLEY COUNTY-
OTERO COUNTY-EASTERN LAS ANIMAS COUNTY-KIOWA COUNTY-BENT COUNTY-
PROWERS COUNTY-BACA COUNTY-
435 AM MDT SAT OCT 20 2007

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 7 PM MDT
THIS EVENING BELOW 8500 FEET...

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 7 PM MDT
THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

THE WARNING AREA INCLUDES THE SOUTHEAST MOUNTAINS BELOW 8500
FEET...THE INTERSTATE 25 CORRIDOR...AND ALL OF THE SOUTHEAST
PLAINS.

STRONG WEST WINDS OF 20 TO 30 MPH WITH GUSTS NEAR 40 MPH ACROSS
THE PLAINS...AND GUSTS AROUND 50 MPH ACROSS THE MOUNTAINS ARE
EXPECTED TO SPREAD ACROSS THE AREA TODAY. RELATIVE HUMIDITIES
WILL DROP BELOW 15 PERCENT BY AFTERNOON...AND COMBINED WITH DRY
FUELS...WILL LEAD TO CONDITIONS FAVORABLE FOR EXTREME FIRE BEHAVIOR
WITH HIGH RATES OF FIRE SPREAD.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL DEVELOP. A COMBINATION OF STRONG WINDS...LOW RELATIVE
HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH
POTENTIAL.

$$
2 follow-up statements
000 
WWUS85 KPUB 202059
RFWPUB

RED FLAG WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
259 PM MDT SAT OCT 20 2007

...RED FLAG WARNING FOR SUSTAINED WIND SPEEDS AND GUSTS...LOW
RELATIVE HUMIDITIES...HIGH HAINES VALUES...AND DRY FUELS...
CONTINUES UNTIL 700 PM THIS EVENING...FOR ELEVATIONS BELOW 8500
FEET IN FIRE WEATHER ZONES 221...222...225..AND 226 THROUGH
237...WHICH INCLUDES THE LOWER EASTERN SLOPES OF THE SANGRE DE
CRISTO MOUNTAINS...WET MOUNTAINS...PIKES PEAK...AND FREMONT
COUNTY...AND ALL OF THE SOUTHEAST PLAINS...

.THE NATIONAL WEATHER SERVICE IN COORDINATION WITH AREA LAND
MANAGEMENT AGENCIES...IS CONTINUING THE RED FLAG WARNING. STRONG
WEST WINDS ARE EXPECTED TO CONTINUE ACROSS SOUTH CENTRAL AND
SOUTHEAST COLORADO THIS AFTERNOON AND EVENING. THE WINDS...IN
COMBINATION WITH LOW DAY TIME RELATIVE HUMIDITIES...HIGH HAINES
VALUES...AND DRY FUELS...HAVE RESULTED IN FAVORABLE CONDITIONS FOR
EXTREME FIRE BEHAVIOR.

COZ221-222-225>237-210100-
/O.CON.KPUB.FW.W.0004.000000T0000Z-071021T0100Z/
TELLER COUNTY/RAMPART RANGE-FREMONT COUNTY-SOUTHERN FRONT RANGE-
NORTHERN EL PASO COUNTY-SOUTHERN EL PASO COUNTY-PUEBLO COUNTY-
HUERFANO COUNTY-WESTERN LAS ANIMAS COUNTY-CROWLEY COUNTY-
OTERO COUNTY-EASTERN LAS ANIMAS COUNTY-KIOWA COUNTY-BENT COUNTY-
PROWERS COUNTY-BACA COUNTY-
259 PM MDT SAT OCT 20 2007

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

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

THE WARNING AREA INCLUDES THE SOUTHEAST MOUNTAINS BELOW
8500 FEET...THE INTERSTATE 25 CORRIDOR...AND ALL OF THE SOUTHEAST
PLAINS.

STRONG WEST WINDS OF 20 TO 30 MPH WITH GUSTS NEAR 40 MPH ACROSS
THE PLAINS...AND GUSTS AROUND 50 MPH ACROSS THE MOUNTAINS ARE
EXPECTED TO CONTINUE THIS AFTERNOON AND EVENING UNTIL 7 PM. RELATIVE
HUMIDITIES BELOW 15 PERCENT...AND COMBINED WITH DRY FUELS...WILL
PRODUCE CONDITIONS FAVORABLE FOR EXTREME FIRE BEHAVIOR WITH HIGH
RATES OF FIRE SPREAD.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL DEVELOP. A COMBINATION OF STRONG WINDS...LOW RELATIVE
HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL.

$$
000 
WWUS85 KPUB 210050
RFWPUB

RED FLAG WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
650 PM MDT SAT OCT 20 2007

...RED FLAG WARNING EXPIRES AT 7 PM THIS EVENING...

.WINDS WILL CONTINUE TO GRADUALLY DECREASE DURING THE EVENING
HOURS. A STRONG COLD FRONT WILL MOVE ACROSS THE DISTRICT LATER
THIS EVENING AND INTO THE LATE NIGHT HOURS. ONCE THE FRONT GOES
BY...RH VALUES WILL DRAMATICALLY INCREASE.

COZ221-222-225>237-210200-
/O.EXP.KPUB.FW.W.0004.000000T0000Z-071021T0100Z/
TELLER COUNTY/RAMPART RANGE-FREMONT COUNTY-SOUTHERN FRONT RANGE-
NORTHERN EL PASO COUNTY-SOUTHERN EL PASO COUNTY-PUEBLO COUNTY-
HUERFANO COUNTY-WESTERN LAS ANIMAS COUNTY-CROWLEY COUNTY-
OTERO COUNTY-EASTERN LAS ANIMAS COUNTY-KIOWA COUNTY-BENT COUNTY-
PROWERS COUNTY-BACA COUNTY-
650 PM MDT SAT OCT 20 2007

...RED FLAG WARNING WILL EXPIRE AT 7 PM MDT THIS EVENING...

THE RED FLAG WARNING WILL EXPIRE AT 7 PM MDT THIS EVENING. 

THE RED FLAG WARNING FOR ELEVATIONS BELOW 8500 FEET IN FIRE
WEATHER ZONES 221...222...225..AND 226 THROUGH 237...WILL EXPIRE
AT 7 PM THIS EVENING.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 20, 4:39 AM MDTSnow and Blowing Snow AdvisoryPUBAlamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 6 more35 hr
Oct 20, 4:39 AM MDTWinter Storm WarningPUBChaffee, Lake, Saguache35 hr

Nearby

Red Flag Warnings in Colorado, 2007Every red flag warning in 2007

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.