Alert archive / Colorado / Red Flag Warnings in 2019

Red Flag Warning 9, NWS Pueblo, CO

August 25, 2019Chaffee County, Fremont County, Lake County, Colorado

NWS Pueblo, CO issued this red flag warning at Aug 25, 2019, 4:09 AM MDT for Chaffee County, Fremont County, Lake County, Colorado. It took effect at Aug 25, 2019, 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
Aug 25, 2019, 4:09 AM MDT (10:09 UTC)
In effect from
Aug 25, 2019, 12:00 PM MDT
Expired
Aug 25, 2019, 8:00 PM MDT
In force
8 hr
Issued by
NWS Pueblo, CO

Counties Chaffee County, CO, Fremont County, CO, Lake County, CO

The radar

The Pueblo radar (KPUX), 162 km from the middle of the area, began a volume at 10:09 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 00:00Z, 10.2 hours before the alert went out and 220 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, Grand Junction, CO at 00:00Z on 2019-08-25Temperature 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 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Grand Junction, CO at 00:00Z on 2019-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.193958Sfc1 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
3853 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

045 
WWUS85 KPUB 251009
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
409 AM MDT Sun Aug 25 2019

...A Red Flag Warning has been issued for gusty winds, low
humidity and dry fuels from noon to 8PM MDT today, for fire 
weather zones 220 and 222, which includes the central mountains, 
the upper Arkansas River Valle and Fremont County...

COZ220-222-260200-
/O.NEW.KPUB.FW.W.0009.190825T1800Z-190826T0200Z/
Upper Arkansas River Valley Including Lake County and Chaffee
County-Fremont County Including Canon City/Howard/Texas Creek-
409 AM MDT Sun Aug 25 2019

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONES 220 AND 222...

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

* Affected Area...Fire Weather Zones 220 and 222.

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

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

* Impacts...Conditions will be favorable for the rapid ignition,
  growth, and spread of fires.

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
960 
WWUS85 KPUB 251753
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
1153 AM MDT Sun Aug 25 2019

...A Red Flag Warning remains in effect for gusty winds, low 
humidity and dry fuels from noon to 8PM MDT this evening, for 
fire weather zones 220 and 222, which includes the central 
mountains, the upper Arkansas River Valley and Fremont county...

COZ220-222-260200-
/O.CON.KPUB.FW.W.0009.190825T1800Z-190826T0200Z/
Upper Arkansas River Valley Including Lake County and Chaffee
County-Fremont County Including Canon City/Howard/Texas Creek-
1153 AM MDT Sun Aug 25 2019

...A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS 
EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER
ZONES 220 AND 222...

* Affected Area...Fire Weather Zones 220 and 222.

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

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

* Impacts...Conditions will be favorable for the rapid ignition, 
  growth, and spread of fires.

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.

&&

$$
151 
WWUS85 KPUB 252050
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
250 PM MDT Sun Aug 25 2019

...A Red Flag Warning remains in effect for gusty winds, low
humidity and dry fuels until 8 PM MDT this evening, for fire 
weather zones 220 and 222, which includes the central mountains, 
the upper Arkansas River Valley and Fremont county...

COZ220-222-260200-
/O.CON.KPUB.FW.W.0009.000000T0000Z-190826T0200Z/
Upper Arkansas River Valley Including Lake County and Chaffee
County-Fremont County Including Canon City/Howard/Texas Creek-
250 PM MDT Sun Aug 25 2019

...A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS 
EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER
ZONES 220 AND 222...

* Affected Area...Fire Weather Zones 220 and 222.

* Winds...West 10 to 20 mph with gusts around 40 mph.

* Relative Humidity...As low as 10 percent.

* Impacts...Conditions will be favorable for the rapid ignition, 
  growth, and spread of fires.

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.

&&

$$
047 
WWUS85 KPUB 260155
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
755 PM MDT Sun Aug 25 2019

COZ220-222-260300-
/O.EXP.KPUB.FW.W.0009.000000T0000Z-190826T0200Z/
Upper Arkansas River Valley Including Lake County and Chaffee
County-Fremont County Including Canon City/Howard/Texas Creek-
755 PM MDT Sun Aug 25 2019

...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR FIRE
WEATHER ZONES 220 AND 222...

Recent observations indicate humidity values are starting to rise,
and winds are subsiding over the warned area. This trend will
continue over the next couple hours. Therefore, the Red Flag
Warning will be allowed to expire.

$$

Nearby

Red Flag Warnings in Colorado, 2019Every red flag warning in 2019

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.