Alert archive / Colorado / Red Flag Warnings in 2021

Red Flag Warning 44, NWS Pueblo, CO

November 17, 20215 counties in Colorado

NWS Pueblo, CO issued this red flag warning at Nov 17, 2021, 12:55 PM MST for 5 counties in Colorado. It took effect at Nov 18, 2021, 11:00 AM MST. It was in force for 12 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
Nov 17, 2021, 12:55 PM MST (19:55 UTC)
In effect from
Nov 18, 2021, 11:00 AM MST
Expired
Nov 18, 2021, 11:00 PM MST
In force
12 hr
Issued by
NWS Pueblo, CO

Counties Chaffee County, CO, El Paso County, CO, Fremont County, CO, Lake County, CO, Teller County, CO

The radar

The Pueblo radar (KPUX), 124 km from the middle of the area, began a volume at 19:57 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

Denver, CO (KDNR), launched 12:00Z, 7.9 hours before the alert went out and 229 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 2021-11-17Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2021-11-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
994 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
337 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

583 
WWUS85 KPUB 171955
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
1255 PM MST Wed Nov 17 2021

...A Red Flag warning has been issued from 11 AM Thursday through
11 PM Thursday for gusty winds and very low humidity values for 
fire weather zones 220...221...222 AND 226. This includes Lake, 
Chaffee, Fremont Teller and northern El Paso counties...

COZ220>222-226-181200-
/O.NEW.KPUB.FW.W.0044.211118T1800Z-211119T0600Z/
Upper Arkansas River Valley Including Lake County and Chaffee
County-
Teller County/Rampart Range Including Pikes Peak and Florissant
Fossil Beds National Monument-
Fremont County Including Canon City/Howard/Texas Creek-
Northern El Paso County Including Monument and Black Forest-
1255 PM MST Wed Nov 17 2021

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 11 PM MST THURSDAY
FOR FIRE WEATHER ZONES 220...221... 222 AND 226...

The National Weather Service in Pueblo has issued a Red Flag
Warning, which is in effect from 11 AM to 11 PM MST Thursday.

* Affected Area...Fire Weather Zones 220...221...222 and 226.

* Winds...Southwest 10 to 20 mph with gusts up to 40 mph.

* Timing...11 AM Thursday to 11 PM Thursday.

* Relative Humidity...As low as 5 percent.

* Temperatures...40s and 50s. 

* Additional Information for the central mountain area...The 
  strongest winds will occur on the eastern slopes of the Sawatch 
  mountain range. The floor of the Upper Arkansas River valley 
  will likely NOT see strong gusty winds. 

* Additional Information for all of the mountain areas within the
  Red Flag Warning area...The winds in the mountains will have 
  the potential to last well into the evening hours, and with VERY
  LOW humidity values, Red Flag conditions may last well into the
  evening hours. 
 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.

&&

$$

Hodanish
4 follow-up statements
858 
WWUS85 KPUB 172151
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
251 PM MST Wed Nov 17 2021

...A Red Flag warning is in effect from 11 AM Thursday through 11
PM Thursday for gusty winds and very low humidity values for fire
weather zones 220...221...222 AND 226. This includes Lake, 
Chaffee, Fremont Teller and northern El Paso counties...

COZ220>222-226-181400-
/O.CON.KPUB.FW.W.0044.211118T1800Z-211119T0600Z/
Upper Arkansas River Valley Including Lake County and Chaffee
County-
Teller County/Rampart Range Including Pikes Peak and Florissant
Fossil Beds National Monument-
Fremont County Including Canon City/Howard/Texas Creek-
Northern El Paso County Including Monument and Black Forest-
251 PM MST Wed Nov 17 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 11 PM MST
THURSDAY FOR FIRE WEATHER ZONES 220...221...222 AND 226...

* Affected Area...Fire Weather Zones 220...221...222 and 226.

* Winds...Southwest 10 to 20 mph with gusts up to 40 mph.

* Timing...11 AM Thursday to 11 PM Thursday.

* Relative Humidity...As low as 5 percent.

* Temperatures...In the upper 30s.

* Additional Information for the central mountain area...The 
  strongest winds will occur on the eastern slopes of the 
  Sawatch mountain range. The floor of the Upper Arkansas River 
  valley will likely NOT see strong gusty winds.

* Additional Information for all of the mountain areas within the
  Red Flag Warning area...The winds in the mountains will have the
  potential to last well into the evening hours, and with VERY LOW
  humidity values, Red Flag conditions may last well into the
  evening hours. 

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.

&&

$$

Hodanish
260 
WWUS85 KPUB 181109
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
409 AM MST Thu Nov 18 2021

...A Red Flag warning is in effect from 11 AM through 11 PM 
for gusty winds and very low humidity values for fire weather 
zones 220...221...222 AND 226. This includes Lake, Chaffee, 
Fremont Teller and northern El Paso counties...

COZ220>222-226-190315-
/O.CON.KPUB.FW.W.0044.211118T1800Z-211119T0600Z/
Upper Arkansas River Valley Including Lake County and Chaffee
County-
Teller County/Rampart Range Including Pikes Peak and Florissant
Fossil Beds National Monument-
Fremont County Including Canon City/Howard/Texas Creek-
Northern El Paso County Including Monument and Black Forest-
409 AM MST Thu Nov 18 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
11 PM MST THIS EVENING FOR FIRE WEATHER ZONES 220...221...222 AND
226...

* Affected Area...Fire Weather Zones 220...221...222 and 226.

* Winds...Southwest 10 to 20 mph with gusts up to 35 mph.

* Timing...11 AM Thursday to 11 PM Thursday.

* Relative Humidity...As low as 7 percent.

* Temperatures...In the upper 30s.

* Additional Information for the central mountain area...The
  strongest winds will occur on the eastern slopes of the Sawatch
  mountain range. The floor of the Upper Arkansas River valley
  will have lighter winds.

* Additional Information for all of the mountain areas within 
  the Red Flag Warning area...The winds in the mountains will 
  have the potential to last well into the evening hours, and 
  with VERY LOW humidity values, Red Flag conditions may last 
  well into the evening hours.

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.

&&

$$
099 
WWUS85 KPUB 182146
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
246 PM MST Thu Nov 18 2021

...A Red Flag warning remains in effect until 11 PM for gusty 
winds and very low humidity values for fire weather zones 
220...221...222 AND 226...which includes Lake, Chaffee, Fremont 
Teller and northern El Paso counties...

COZ220>222-226-190600-
/O.CON.KPUB.FW.W.0044.000000T0000Z-211119T0600Z/
Upper Arkansas River Valley Including Lake County and Chaffee
County-
Teller County/Rampart Range Including Pikes Peak and Florissant
Fossil Beds National Monument-
Fremont County Including Canon City/Howard/Texas Creek-
Northern El Paso County Including Monument and Black Forest-
246 PM MST Thu Nov 18 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING FOR FIRE WEATHER ZONES 220...221...222 AND 226...

* Affected Area...Fire Weather Zones 220...221...222 and 226.

* Winds...Southwest 10 to 20 mph with gusts up to 40 mph.

* Timing...Until 11 PM Thursday.

* Relative Humidity...As low as 5 percent.

* Temperatures...In the upper 30s.

* Additional Information for the central mountain area...The 
  strongest winds will occur on the eastern slopes of the 
  Sawatch mountain range. The floor of the Upper Arkansas River 
  valley will have lighter winds.

* Additional Information for all of the mountain areas within 
  the Red Flag Warning area...The winds in the mountains will 
  have the potential to last well into the evening hours, and 
  with VERY LOW humidity values, Red Flag conditions may last 
  well into the evening hours.

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.

&&

$$
696 
WWUS85 KPUB 190600
RFWPUB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pueblo CO
1100 PM MST Thu Nov 18 2021

...The Red Flag Warning will expire at 11 PM for gusty winds and
very low humidity values for fire weather zones
220...221...222...and 226...which includes Lake, Chaffee, Fremont,
Teller and northern El Paso counties...

COZ220>222-226-190700-
/O.EXP.KPUB.FW.W.0044.000000T0000Z-211119T0600Z/
Upper Arkansas River Valley Including Lake County and Chaffee
County-
Teller County/Rampart Range Including Pikes Peak and Florissant
Fossil Beds National Monument-
Fremont County Including Canon City/Howard/Texas Creek-
Northern El Paso County Including Monument and Black Forest-
1100 PM MST Thu Nov 18 2021

...RED FLAG WARNING WILL EXPIRE AT 11 PM MST THIS EVENING FOR
GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 
220...221...222 AND 226...

Humidity have increased above critical thresholds across the 
majority of the area and will continue to increase overnight as
temperatures cool. Therefore the Red Flag Warning will be allowed
to expire.  

$$

Nearby

Red Flag Warnings in Colorado, 2021Every 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.