Alert archive / Nebraska / Red Flag Warnings in 2017

Red Flag Warning 13, NWS North Platte, NE

October 27, 20175 counties in Nebraska

NWS North Platte, NE issued this red flag warning at Oct 27, 2017, 2:36 AM MDT for 5 counties in Nebraska. It took effect at Oct 27, 2017, 12:00 PM MDT. It was in force for 6 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 27, 2017, 2:36 AM MDT (08:36 UTC)
In effect from
Oct 27, 2017, 12:00 PM MDT
Expired
Oct 27, 2017, 6:00 PM MDT
In force
6 hr
Issued by
NWS North Platte, NE

Counties Chase County, NE, Frontier County, NE, Hayes County, NE, Lincoln County, NE, Perkins County, NE

The radar

The North Platte radar (KLNX), 147 km from the middle of the area, began a volume at 08:40 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, 8.6 hours before the alert went out and 65 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 2017-10-27Temperature 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, N. Platte/Lee Bi, NE at 00:00Z on 2017-10-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -161 square meters per square second.19395878Sfc1 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
1387 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
-161 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.

178 
WWUS83 KLBF 270836
RFWLBF

URGENT - FIRE WEATHER MESSAGE
National Weather Service North Platte NE
336 AM CDT Fri Oct 27 2017

...CRITICAL FIRE WEATHER CONDITIONS ANTICIPATED FRIDAY
AFTERNOON...

.Gusty northwesterly winds will combine with a dry airmass today,
leading to critical fire weather conditions across southwestern
Nebraska. Critical fire weather conditions are possible across the
eastern Nebraska Panhandle and western Sandhills.  

NEZ210-219-280000-
/O.UPG.KLBF.FW.A.0007.171027T1800Z-171028T0000Z/
/O.NEW.KLBF.FW.W.0013.171027T1800Z-171028T0000Z/
Frenchman Basin-Loess Plains-
336 AM CDT Fri Oct 27 2017 /236 AM MDT Fri Oct 27 2017/

...RED FLAG WARNING IN EFFECT FROM 1 PM CDT /NOON MDT/ THIS
AFTERNOON TO 7 PM CDT /6 PM MDT/ THIS EVENING FOR WIND AND LOW
RELATIVE HUMIDITY FOR SOUTHWESTERN NEBRASKA...

The National Weather Service in North Platte has issued a Red
Flag Warning FOR WIND AND LOW RELATIVE HUMIDITY, which is in
effect from 1 PM CDT /noon MDT/ this afternoon to 7 PM CDT /6 PM
MDT/ this evening. The Fire Weather Watch is no longer in effect.

* Affected Area...In NEZ210...Fire Weather Zone 210 Frenchman 
  Basin. In NEZ219...Fire Weather Zone 219 Loess Plains.

* Winds...North 15 to 25 mph with gusts up to 30 mph.

* Relative Humidity...As low as 12 percent.

* Impacts...The combination of gusty winds and low relative
  humidities will produce critical fire weather conditions this
  afternoon. Extreme fire behavior is expected. 

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.

&&

$$

NEZ204-280000-
/O.CON.KLBF.FW.A.0007.171027T1800Z-171028T0000Z/
Eastern Panhandle/Crescent Lake NWR-
236 AM MDT Fri Oct 27 2017

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM NOON MDT TODAY
THROUGH THIS AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY FOR
FIRE WEATHER ZONES 204...210 AND 219...

* Affected Area...In NEZ204...Fire Weather Zone 204 Eastern 
  Panhandle/Crescent Lake NWR.

* Winds...North 10 to 20 mph with gusts up to 25 mph possible.

* Relative Humidity...As low as 15 percent.

* Impacts...The combination of gusty winds and low relative
  humidities may produce critical fire weather conditions. Large 
  range fire spread is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are possible. Listen for later forecasts and possible Red Flag 
Warnings.

&&

$$

http://weather.gov/LBF
2 follow-up statements
414 
WWUS83 KLBF 271442
RFWLBF

URGENT - FIRE WEATHER MESSAGE
National Weather Service North Platte NE
942 AM CDT Fri Oct 27 2017

...CRITICAL FIRE WEATHER CONDITIONS ANTICIPATED THIS AFTERNOON...

.Gusty northwesterly winds will combine with a dry airmass today,
leading to critical fire weather conditions across southwestern
Nebraska. Sub-critical fire weather conditions are still possible
across the eastern Nebraska Panhandle and western Sandhills.

NEZ204-271545-
/O.CAN.KLBF.FW.A.0007.171027T1800Z-171028T0000Z/
Eastern Panhandle/Crescent Lake NWR-
842 AM MDT Fri Oct 27 2017

...FIRE WEATHER WATCH IS CANCELLED FOR WIND AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONES 204...

The National Weather Service in North Platte has cancelled the
Fire Weather Watch.

Relative humidity will remain low through this evening, however,
winds will also remain light. Critical fire weather conditions are
no longer expected. 

$$

NEZ210-219-280000-
/O.CON.KLBF.FW.W.0013.171027T1800Z-171028T0000Z/
Frenchman Basin-Loess Plains-
942 AM CDT Fri Oct 27 2017 /842 AM MDT Fri Oct 27 2017/

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM CDT /NOON MDT/
THIS AFTERNOON TO 7 PM CDT /6 PM MDT/ THIS EVENING FOR WIND AND
LOW RELATIVE HUMIDITY FOR SOUTHWESTERN NEBRASKA...

* Affected Area...In NEZ210...Fire Weather Zone 210 Frenchman 
  Basin. In NEZ219...Fire Weather Zone 219 Loess Plains.

* Winds...North 15 to 25 mph with gusts up to 35 mph.

* Relative Humidity...As low as 12 percent.

* Impacts...The combination of gusty winds and low relative 
  humidities will produce critical fire weather conditions this 
  afternoon. Extreme fire behavior is expected.

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.

&&

$$

RK/ET 

http://weather.gov/LBF
866 
WWUS83 KLBF 272354
RFWLBF

URGENT - FIRE WEATHER MESSAGE
National Weather Service North Platte NE
654 PM CDT Fri Oct 27 2017

NEZ210-219-280100-
/O.EXP.KLBF.FW.W.0013.000000T0000Z-171028T0000Z/
Frenchman Basin-Loess Plains-
654 PM CDT Fri Oct 27 2017 /554 PM MDT Fri Oct 27 2017/

...RED FLAG WARNING WILL EXPIRE AT 7 PM CDT /6 PM MDT/ THIS
EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTHWESTERN
NEBRASKA...

Winds have diminished to 10 mph or less and relative humidities
have improved to above 15 percent.

$$

http://weather.gov/LBF

Nearby

Red Flag Warnings in Nebraska, 2017Every red flag warning in 2017

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.