Alert archive / Nebraska / Red Flag Warnings in 2021
Red Flag Warning 9, NWS Omaha, NE
NWS Omaha, NE issued this red flag warning at Nov 22, 2021, 2:07 PM CST for 6 counties in Nebraska. It took effect at Nov 23, 2021, 12:00 PM CST. 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
- Nov 22, 2021, 2:07 PM CST (20:07 UTC)
- In effect from
- Nov 23, 2021, 12:00 PM CST
- Expired
- Nov 23, 2021, 6:00 PM CST
- In force
- 6 hr
- Issued by
- NWS Omaha, NE
Counties Antelope County, NE, Boone County, NE, Cedar County, NE, Knox County, NE, Madison County, NE, Pierce County, NE
The radar
The Omaha radar (KOAX), 152 km from the middle of the area, began a volume at 20:08 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
Omaha, NE (KOAX), launched 12:00Z, 8.1 hours before the alert went out and 152 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1865 m above ground
- 0-6 km bulk shear
- 81 kt
- 0-1 km storm-relative helicity
- 179 m²/s²
- 0-3 km storm-relative helicity
- 357 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
550 WWUS83 KOAX 222007 RFWOAX URGENT - FIRE WEATHER MESSAGE National Weather Service Omaha/Valley NE 207 PM CST Mon Nov 22 2021 NEZ011-016-017-030-031-230415- /O.NEW.KOAX.FW.W.0009.211123T1800Z-211124T0000Z/ Knox-Antelope-Pierce-Boone-Madison- 207 PM CST Mon Nov 22 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 6 PM CST TUESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR KNOX, ANTELOPE, PIERCE, MADISON AND BOONE COUNTIES... The National Weather Service in Omaha/Valley has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon to 6 PM CST Tuesday. * Affected Area...In Nebraska, Knox, Antelope, Pierce, Boone and Madison Counties. * Winds...South at 15 to 25 mph with gusts up to 35 mph. * Relative Humidity...As low as 20 percent. * Impacts...Any fires that ignite will spread rapidly and exhibit extreme behavior. 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. && $$ Albright
4 follow-up statements
755 WWUS83 KOAX 222041 RFWOAX URGENT - FIRE WEATHER MESSAGE National Weather Service Omaha/Valley NE 241 PM CST Mon Nov 22 2021 NEZ012-230445- /O.EXA.KOAX.FW.W.0009.211123T1800Z-211124T0000Z/ Cedar- 241 PM CST Mon Nov 22 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 6 PM CST TUESDAY FOR WIND AND LOW RELATIVE HUMIDITY IN CEDAR COUNTY... The National Weather Service in Omaha/Valley has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon to 6 PM CST Tuesday. * Affected Area...In Nebraska, Cedar. * Winds...South 15 to 25 mph with gusts up to 35 mph. * Relative Humidity...As low as 20 percent. * Impacts...Any fires that ignite will spread rapidly and exhibit extreme behavior. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity and warm temperatures can contribute to extreme fire behavior. && $$ NEZ011-016-017-030-031-230445- /O.CON.KOAX.FW.W.0009.211123T1800Z-211124T0000Z/ Knox-Antelope-Pierce-Boone-Madison- 241 PM CST Mon Nov 22 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 6 PM CST TUESDAY FOR WIND AND LOW RELATIVE HUMIDITY IN KNOX, ANTELOPE, PIERCE, MADISON AND BOONE COUNTIES... * Affected Area...In Nebraska, Knox, Antelope, Pierce, Boone and Madison. * Winds...South 15 to 25 mph with gusts up to 35 mph. * Relative Humidity...As low as 20 percent. * Impacts...Any fires that ignite will spread rapidly and exhibit extreme behavior. 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. && $$ Albright
060 WWUS83 KOAX 230900 RFWOAX URGENT - FIRE WEATHER MESSAGE National Weather Service Omaha/Valley NE 300 AM CST Tue Nov 23 2021 NEZ011-012-016-017-030-031-240000- /O.CON.KOAX.FW.W.0009.211123T1800Z-211124T0000Z/ Knox-Cedar-Antelope-Pierce-Boone-Madison- 300 AM CST Tue Nov 23 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 6 PM CST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR PARTS OF NORTHEAST NEBRASKA... * Affected Area...In Nebraska, Knox, Cedar, Antelope, Pierce, Boone and Madison. * Winds...South 15 to 25 mph with gusts up to 40 mph. * Relative Humidity...As low as 17 percent. * Impacts...Any fires that ignite will spread rapidly and exhibit extreme behavior. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity and warm temperatures can contribute to extreme fire behavior. && $$
160 WWUS83 KOAX 232109 RFWOAX URGENT - FIRE WEATHER MESSAGE National Weather Service Omaha/Valley NE 309 PM CST Tue Nov 23 2021 NEZ011-012-016-017-030-031-240000- /O.CON.KOAX.FW.W.0009.000000T0000Z-211124T0000Z/ Knox-Cedar-Antelope-Pierce-Boone-Madison- 309 PM CST Tue Nov 23 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR PARTS OF NORTHEAST NEBRASKA... * Affected Area...In Nebraska, Knox, Cedar, Antelope, Pierce, Boone and Madison. * Winds...South 15 to 25 mph with gusts up to 40 mph. * Relative Humidity...As low as 15 percent. * Impacts...Any fires that ignite will spread rapidly and exhibit extreme behavior. 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. && $$
685 WWUS83 KOAX 232354 RFWOAX URGENT - FIRE WEATHER MESSAGE National Weather Service Omaha/Valley NE 554 PM CST Tue Nov 23 2021 NEZ011-012-016-017-030-031-240100- /O.EXP.KOAX.FW.W.0009.000000T0000Z-211124T0000Z/ Knox-Cedar-Antelope-Pierce-Boone-Madison- 554 PM CST Tue Nov 23 2021 ...RED FLAG WARNING WILL EXPIRE AT 6 PM CST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF NORTHEAST NEBRASKA... Winds are expected to continue subsiding through the evening hours along with increasing humidity. Thus the Red Flag Warning will be allowed to expire at 6 pm. $$
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.