Alert archive / Nebraska / Red Flag Warnings in 2021

Red Flag Warning 5, NWS Cheyenne, WY

April 11, 2021

NWS Cheyenne, WY issued this red flag warning at Apr 11, 2021, 2:36 AM CDT. It took effect at Apr 11, 2021, 10:00 AM CDT. It was in force for 10 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
Apr 11, 2021, 2:36 AM CDT (07:36 UTC)
In effect from
Apr 11, 2021, 10:00 AM CDT
Expired
Apr 11, 2021, 8:00 PM CDT
In force
10 hr
Issued by
NWS Cheyenne, WY

The text

As transmitted.

680 
WWUS85 KCYS 110736
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
136 AM MDT Sun Apr 11 2021

...RED FLAG WARNING FOR STRONG WINDS AND LOW HUMIDITY FWZ 312 AND
313 TODAY...

NEZ312-313-120000-
/O.NEW.KCYS.FW.W.0005.210411T1500Z-210412T0100Z/
Box Butte/South Sioux-
Scotts Bluff National Monument/Wildcat Hills-
136 AM MDT Sun Apr 11 2021

...RED FLAG WARNING IN EFFECT FROM 9 AM THIS MORNING TO 7 PM MDT
THIS EVENING FOR STRONG NORTHWEST WINDS AND LOW HUMIDITY FOR FIRE
WEATHER ZONES 312 AND 313...

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect from 9 AM this morning to 7 PM MDT
this evening. 

* AFFECTED AREA...Fire weather zone 312. Fire weather zone 313.

* WIND...Northwest 20 to 25 mph sustained with gusts to 40 mph.
 
* HUMIDITY...12 to 15 percent.

* HAINES...5.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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.

&&

$$
2 follow-up statements
431 
WWUS85 KCYS 111921
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
121 PM MDT Sun Apr 11 2021

NEZ312-313-120100-
/O.CON.KCYS.FW.W.0005.000000T0000Z-210412T0100Z/
Box Butte/South Sioux-
Scotts Bluff National Monument/Wildcat Hills-
121 PM MDT Sun Apr 11 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING
FOR STRONG NORTHWEST WINDS AND LOW HUMIDITY...

* AFFECTED AREA...Fire weather zone 312 and zone 313.

* WIND...Northwest 25 to 35 mph sustained with gusts to 50 mph.

* HUMIDITY...18 to 25 percent.

* HAINES...4.

* IMPACTS...any fires that develop may spread rapidly. Outdoor 
  burning is not recommended.

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.

&&

$$
757 
WWUS85 KCYS 120042
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
642 PM MDT Sun Apr 11 2021

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

NEZ312-313-120145-
/O.EXP.KCYS.FW.W.0005.000000T0000Z-210412T0100Z/
Box Butte/South Sioux-
Scotts Bluff National Monument/Wildcat Hills-
642 PM MDT Sun Apr 11 2021

...RED FLAG WARNING WILL EXPIRE AT 7 PM MDT THIS EVENING FOR GUSTY
WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 312 AND 313...

Gusty northwest winds of 30 to 40 mph will diminish after sunset.
Relative humidities will increase this evening.

$$

Nearby

Red Flag Warnings in Nebraska, 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.