Alert archive / Nebraska / Red Flag Warnings in 2021

Red Flag Warning 16, NWS Hastings, NE

May 1, 202124 counties in Nebraska; 6 counties in Kansas

NWS Hastings, NE issued this red flag warning at May 1, 2021, 4:44 AM CDT for 24 counties in Nebraska; 6 counties in Kansas. It took effect at May 1, 2021, 12:00 PM CDT. It was in force for 9 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
May 1, 2021, 4:44 AM CDT (09:44 UTC)
In effect from
May 1, 2021, 12:00 PM CDT
Expired
May 1, 2021, 8:40 PM CDT
In force
9 hr
Issued by
NWS Hastings, NE
All 30 counties

Jewell County, KS, Mitchell County, KS, Osborne County, KS, Phillips County, KS, Rooks County, KS, Smith County, KS, Adams County, NE, Buffalo County, NE, Clay County, NE, Dawson County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Howard County, NE, Kearney County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Phelps County, NE, Polk County, NE, Sherman County, NE, Thayer County, NE, Valley County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 27 km from the middle of the area, began a volume at 09:44 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, 9.7 hours before the alert went out and 179 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 2021-05-01Temperature 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 2021-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
3361 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

831 
WWUS83 KGID 010944
RFWGID

URGENT - FIRE WEATHER MESSAGE
National Weather Service Hastings NE
444 AM CDT Sat May 1 2021

KSZ005-017-NEZ039>041-046>048-060>063-072>075-082>084-020200-
/O.NEW.KGID.FW.W.0016.210501T1700Z-210502T0200Z/
Phillips-Rooks-Valley-Greeley-Nance-Sherman-Howard-Merrick-Dawson-
Buffalo-Hall-Hamilton-Gosper-Phelps-Kearney-Adams-Furnas-Harlan-
Franklin-
444 AM CDT Sat May 1 2021

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM CDT THIS
EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES
005, 017, 039, 040, 041, 046, 047, 048, 060, 061, 062, 063, 072,
073, 074, 075, 082, 083 AND 084...

The National Weather Service in Hastings has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from noon today to 9 PM CDT this evening.

* AFFECTED AREA...In Kansas, Fire Weather Zone 005 Phillips and 
  Fire Weather Zone 017 Rooks. In Nebraska, Fire Weather Zone 
  039 Valley, Fire Weather Zone 040 Greeley, Fire Weather Zone 
  041 Nance, Fire Weather Zone 046 Sherman, Fire Weather Zone 
  047 Howard, Fire Weather Zone 048 Merrick, Fire Weather Zone 
  060 Dawson, Fire Weather Zone 061 Buffalo, Fire Weather Zone 
  062 Hall, Fire Weather Zone 063 Hamilton, Fire Weather Zone 
  072 Gosper, Fire Weather Zone 073 Phelps, Fire Weather Zone 
  074 Kearney, Fire Weather Zone 075 Adams, Fire Weather Zone 
  082 Furnas, Fire Weather Zone 083 Harlan and Fire Weather Zone 
  084 Franklin.

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

* RELATIVE HUMIDITY...As low as 17 percent.

* IMPACTS...Any fires that ignite may spread rapidly and exhibit 
  extreme fire behavior. Use extreme caution if engaging in 
  activities that could lead to fire ignition.

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.

&&

$$

Heinlein
2 follow-up statements
929 
WWUS83 KGID 011506
RFWGID

URGENT - FIRE WEATHER MESSAGE
National Weather Service Hastings NE
1006 AM CDT Sat May 1 2021

KSZ006-007-018-019-NEZ049-064-076-077-085>087-020200-
/O.EXA.KGID.FW.W.0016.210501T1700Z-210502T0200Z/
Smith-Jewell-Osborne-Mitchell-Polk-York-Clay-Fillmore-Webster-
Nuckolls-Thayer-
1006 AM CDT Sat May 1 2021

...RED FLAG WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 006, 007,
018, 019, 049, 064, 076, 077, 085, 086 AND 087...

The National Weather Service in Hastings has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
until 9 PM CDT this evening.

* AFFECTED AREA...In Kansas, Fire Weather Zone 006 Smith, Fire 
  Weather Zone 007 Jewell, Fire Weather Zone 018 Osborne and 
  Fire Weather Zone 019 Mitchell. In Nebraska, Fire Weather Zone 
  049 Polk, Fire Weather Zone 064 York, Fire Weather Zone 076 
  Clay, Fire Weather Zone 077 Fillmore, Fire Weather Zone 085 
  Webster, Fire Weather Zone 086 Nuckolls and Fire Weather Zone 
  087 Thayer.

* WINDS...Southwest 20 to 25 mph with gusts up to 40 mph.

* RELATIVE HUMIDITY...Near 20 percent.

* IMPACTS...Any fires that ignite may spread rapidly and exhibit 
  extreme fire behavior. Use extreme caution if engaging in 
  activities that could lead to fire ignition.

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.

&&

$$

KSZ005-017-NEZ039>041-046>048-060>063-072>075-082>084-020200-
/O.CON.KGID.FW.W.0016.210501T1700Z-210502T0200Z/
Phillips-Rooks-Valley-Greeley-Nance-Sherman-Howard-Merrick-Dawson-
Buffalo-Hall-Hamilton-Gosper-Phelps-Kearney-Adams-Furnas-Harlan-
Franklin-
1006 AM CDT Sat May 1 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 005,
017, 039, 040, 041, 046, 047, 048, 060, 061, 062, 063, 072, 073,
074, 075, 082, 083 AND 084...

* AFFECTED AREA...In Kansas, Fire Weather Zone 005 Phillips and 
  Fire Weather Zone 017 Rooks. In Nebraska, Fire Weather Zone 
  039 Valley, Fire Weather Zone 040 Greeley, Fire Weather Zone 
  041 Nance, Fire Weather Zone 046 Sherman, Fire Weather Zone 
  047 Howard, Fire Weather Zone 048 Merrick, Fire Weather Zone 
  060 Dawson, Fire Weather Zone 061 Buffalo, Fire Weather Zone 
  062 Hall, Fire Weather Zone 063 Hamilton, Fire Weather Zone 
  072 Gosper, Fire Weather Zone 073 Phelps, Fire Weather Zone 
  074 Kearney, Fire Weather Zone 075 Adams, Fire Weather Zone 
  082 Furnas, Fire Weather Zone 083 Harlan and Fire Weather Zone 
  084 Franklin.

* WINDS...Southwest 15 to 25 mph with gusts near 30 mph.

* RELATIVE HUMIDITY...As low as 16 percent.

* IMPACTS...Any fires that ignite may spread rapidly and exhibit 
  extreme fire behavior. Use extreme caution if engaging in 
  activities that could lead to fire ignition.

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.

&&

$$
397 
WWUS83 KGID 020140
RFWGID

URGENT - FIRE WEATHER MESSAGE
National Weather Service Hastings NE
840 PM CDT Sat May 1 2021

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
020245-
/O.CAN.KGID.FW.W.0016.000000T0000Z-210502T0200Z/
Phillips-Smith-Jewell-Rooks-Osborne-Mitchell-Valley-Greeley-Nance-
Sherman-Howard-Merrick-Polk-Dawson-Buffalo-Hall-Hamilton-York-
Gosper-Phelps-Kearney-Adams-Clay-Fillmore-Furnas-Harlan-Franklin-
Webster-Nuckolls-Thayer-
840 PM CDT Sat May 1 2021

...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONES 005, 006, 007, 017, 018, 019,
039, 040, 041, 046, 047, 048, 049, 060, 061, 062, 063, 064, 072,
073, 074, 075, 076, 077, 082, 083, 084, 085, 086 AND 087...

The National Weather Service in Hastings has cancelled the Red
Flag Warning. Though wind speeds remain gusty in spots, relative 
humidity values have increased to above Red Flag criteria.
Humidity values will continue to increase through the night. 

$$

NOAA/NWS/Moritz

Nearby

Red Flag Warnings in Nebraska, 2021Red Flag Warnings in Kansas, 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.