Alert archive / Colorado / Red Flag Warnings in 2023

Red Flag Warning 21, NWS Goodland, KS

August 21, 2023Yuma County, Colorado

NWS Goodland, KS issued this red flag warning at Aug 21, 2023, 1:01 AM MDT for Yuma County, Colorado. It took effect at Aug 21, 2023, 12:00 PM MDT. It was in force for 7 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 21, 2023, 1:01 AM MDT (07:01 UTC)
In effect from
Aug 21, 2023, 12:00 PM MDT
Expired
Aug 21, 2023, 7:00 PM MDT
In force
7 hr
Issued by
NWS Goodland, KS

County Yuma County, CO

The radar

The Goodland radar (KGLD), 94 km from the middle of the area, began a volume at 07:02 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 7.0 hours before the alert went out and 199 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, N. Platte/Lee Bi, NE at 00:00Z on 2023-08-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2601 joules per kilogram.LCLLFCEL10008507005003002001001 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, N. Platte/Lee Bi, NE at 00:00Z on 2023-08-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 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
2601 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
1578 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
256 m²/s²
Significant tornado parameter
0.5
Supercell composite
10.3

Open this sounding in Storm Lab

The text

As transmitted.

050 
WWUS83 KGLD 210701
RFWGLD

URGENT - FIRE WEATHER MESSAGE
National Weather Service Goodland KS
101 AM MDT Mon Aug 21 2023

...Critical Fire Weather Again Anticipated Today...

.Hot and dry conditions continue across the central High Plains.
Winds today look to be from the SSW gusting up to 35 mph through
the afternoon. This combined with relative humidity values falling
into the mid teens along with drying vegetation will lead to
critical fire weather conditions this afternoon and evening.

COZ252-220100-
/O.NEW.KGLD.FW.W.0021.230821T1800Z-230822T0100Z/
Yuma-
101 AM MDT Mon Aug 21 2023

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM MDT THIS
EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE
252 IN COLORADO ...

The National Weather Service in Goodland has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from noon today to 7 PM MDT this evening.

* AFFECTED AREA...Fire Weather Zone 252 Yuma.

* WINDS...South 15 to 25 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...Around 14 percent.

* TEMPERATURES... In the mid to upper 90s.

* IMPACTS... Any fires that start today will have extreme fire
  behavior and spread rapidly. Outdoor burning is not advised.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are imminent. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/goodland
2 follow-up statements
221 
WWUS83 KGLD 212002
RFWGLD

URGENT - FIRE WEATHER MESSAGE
National Weather Service Goodland KS
202 PM MDT Mon Aug 21 2023

COZ252-220100-
/O.CON.KGLD.FW.W.0021.000000T0000Z-230822T0100Z/
Yuma-
202 PM MDT Mon Aug 21 2023

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF NORTHEAST
COLORADO...

* AFFECTED AREA...Fire Weather Zone 252 Yuma.

* WINDS...South 15 to 25 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...As low as 15 percent.

* TEMPERATURES...In the upper 90s.

* IMPACTS... Any fires that start today will have extreme fire 
  behavior and spread rapidly. Outdoor burning is not advised.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are imminent. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/goodland
584 
WWUS83 KGLD 220057
RFWGLD

URGENT - FIRE WEATHER MESSAGE
National Weather Service Goodland KS
657 PM MDT Mon Aug 21 2023

COZ252-220200-
/O.EXP.KGLD.FW.W.0021.000000T0000Z-230822T0100Z/
Yuma-
657 PM MDT Mon Aug 21 2023

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

Relative humidity is slowly beginning to increase across the
county though winds may remain gusty through the night. While the
Warning will expire, use extra caution if a fire develops due to
the gusty winds.

$$

For more information from the National Weather Service visit
http://weather.gov/goodland

Nearby

Red Flag Warnings in Colorado, 2023Every red flag warning in 2023

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.