Alert archive / Nebraska / Red Flag Warnings in 2021
Red Flag Warning 3, NWS Omaha, NE
NWS Omaha, NE issued this red flag warning at Mar 28, 2021, 2:06 PM CDT for 8 counties in Iowa; 30 counties in Nebraska. It took effect at Mar 29, 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
- Mar 28, 2021, 2:06 PM CDT (19:06 UTC)
- In effect from
- Mar 29, 2021, 12:00 PM CDT
- Expired
- Mar 29, 2021, 9:05 PM CDT
- In force
- 9 hr
- Issued by
- NWS Omaha, NE
All 38 counties
Fremont County, IA, Harrison County, IA, Mills County, IA, Monona County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Shelby County, IA, Antelope County, NE, Boone County, NE, Burt County, NE, Butler County, NE, Cass County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Douglas County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Knox County, NE, Lancaster County, NE, Madison County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Pierce County, NE, Platte County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Stanton County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE
The radar
The Omaha radar (KOAX), 16 km from the middle of the area, began a volume at 19:10 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, 7.1 hours before the alert went out and 16 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
- 1259 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 223 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
998 WWUS83 KOAX 281906 RFWOAX URGENT - FIRE WEATHER MESSAGE National Weather Service Omaha/Valley NE 206 PM CDT Sun Mar 28 2021 IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-291100- /O.UPG.KOAX.FW.A.0001.210329T1700Z-210330T0200Z/ /O.NEW.KOAX.FW.W.0003.210329T1700Z-210330T0200Z/ Monona-Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont- Page-Knox-Cedar-Thurston-Antelope-Pierce-Wayne-Boone-Madison- Stanton-Cuming-Burt-Platte-Colfax-Dodge-Washington-Butler- Saunders-Douglas-Sarpy-Seward-Lancaster-Cass-Otoe-Saline- Jefferson-Gage-Johnson-Nemaha-Pawnee-Richardson- 206 PM CDT Sun Mar 28 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM CDT MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... 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 9 PM CDT Monday. The Fire Weather Watch is no longer in effect. * Affected Area...In Iowa, Monona, Harrison, Shelby, Pottawattamie, Mills, Montgomery, Fremont and Page. In Nebraska, Knox, Cedar, Thurston, Antelope, Pierce, Wayne, Boone, Madison, Stanton, Cuming, Burt, Platte, Colfax, Dodge, Washington, Butler, Saunders, Douglas, Sarpy, Seward, Lancaster, Cass, Otoe, Saline, Jefferson, Gage, Johnson, Nemaha, Pawnee and Richardson. * Winds...From the southwest at 20 to 30 mph with gusts of 35 to 50 mph. * Relative Humidity...As low as 20 to 25 percent. * Impacts...Any fires that ignite may spread rapidly and exhibit extreme fire behavior. 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. && $$
3 follow-up statements
179 WWUS83 KOAX 290903 RFWOAX URGENT - FIRE WEATHER MESSAGE National Weather Service Omaha/Valley NE 403 AM CDT Mon Mar 29 2021 NEZ018-030>033-042>045-050>053-065>068-078-088>090-291715- /O.EXT.KOAX.FW.W.0003.210329T1700Z-210330T0600Z/ Wayne-Boone-Madison-Stanton-Cuming-Platte-Colfax-Dodge-Washington- Butler-Saunders-Douglas-Sarpy-Seward-Lancaster-Cass-Otoe-Saline- Jefferson-Gage-Johnson- 403 AM CDT Mon Mar 29 2021 ...RED FLAG WARNING NOW IN EFFECT FROM NOON TODAY TO 1 AM CDT TUESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF EASTERN NEBRASKA... * Affected Area...In Nebraska, Wayne, Boone, Madison, Stanton, Cuming, Platte, Colfax, Dodge, Washington, Butler, Saunders, Douglas, Sarpy, Seward, Lancaster, Cass, Otoe, Saline, Jefferson, Gage and Johnson. * Winds...Southwest 15 to 25 mph with gusts up to 40 mph this afternoon, becoming northwesterly at 15 to 25 with gusts to 45 mph between 8 PM and 1 AM. * Relative Humidity...15 to 25 percent. * Impacts...Any fires that ignite may spread rapidly and exhibit extreme fire behavior. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity and warm temperatures can contribute to extreme fire behavior. && $$ IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>017-034-091>093- 291715- /O.CON.KOAX.FW.W.0003.210329T1700Z-210330T0200Z/ Monona-Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont- Page-Knox-Cedar-Thurston-Antelope-Pierce-Burt-Nemaha-Pawnee- Richardson- 403 AM CDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF EASTERN NEBRASKA AND WESTERN IOWA... * Affected Area...In Iowa, Monona, Harrison, Shelby, Pottawattamie, Mills, Montgomery, Fremont and Page. In Nebraska, Knox, Cedar, Thurston, Antelope, Pierce, Burt, Nemaha, Pawnee and Richardson. * Winds...Southwest 15 to 30 mph with gusts of 40 to 50 mph. * Relative Humidity...15 to 25 percent. * Impacts...Any fires that ignite may spread rapidly and exhibit extreme fire behavior. 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. && $$ Albright
351 WWUS83 KOAX 292032 RFWOAX URGENT - FIRE WEATHER MESSAGE National Weather Service Omaha/Valley NE 332 PM CDT Mon Mar 29 2021 IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>017-034-091>093- 300200- /O.CON.KOAX.FW.W.0003.000000T0000Z-210330T0200Z/ Monona-Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont- Page-Knox-Cedar-Thurston-Antelope-Pierce-Burt-Nemaha-Pawnee- Richardson- 332 PM CDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF EASTERN NEBRASKA AND WESTERN IOWA... * Affected Area...In Iowa, Monona, Harrison, Shelby, Pottawattamie, Mills, Montgomery, Fremont and Page. In Nebraska, Knox, Cedar, Thurston, Antelope, Pierce, Burt, Nemaha, Pawnee and Richardson. * Winds...Southwest 20 to 35 mph with gusts up to 45 mph. * Relative Humidity...As low as 17 percent. * Impacts...Any fires that ignite may spread rapidly and exhibit extreme fire behavior. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity and warm temperatures can contribute to extreme fire behavior. && $$ NEZ018-030>033-042>045-050>053-065>068-078-088>090-300445- /O.CON.KOAX.FW.W.0003.000000T0000Z-210330T0600Z/ Wayne-Boone-Madison-Stanton-Cuming-Platte-Colfax-Dodge-Washington- Butler-Saunders-Douglas-Sarpy-Seward-Lancaster-Cass-Otoe-Saline- Jefferson-Gage-Johnson- 332 PM CDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 1 AM CDT TUESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF EASTERN NEBRASKA... * Affected Area...In Nebraska, Wayne, Boone, Madison, Stanton, Cuming, Platte, Colfax, Dodge, Washington, Butler, Saunders, Douglas, Sarpy, Seward, Lancaster, Cass, Otoe, Saline, Jefferson, Gage and Johnson. * Winds...Southwest 20 to 35 mph with gusts up to 40 mph. * Relative Humidity...As low as 18 percent. * Impacts...Any fires that ignite may spread rapidly and exhibit extreme fire behavior. 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. && $$
612 WWUS83 KOAX 300205 RFWOAX URGENT - FIRE WEATHER MESSAGE National Weather Service Omaha/Valley NE 905 PM CDT Mon Mar 29 2021 NEZ018-030>033-042>045-050>053-065>068-078-088>090-300315- /O.CAN.KOAX.FW.W.0003.000000T0000Z-210330T0600Z/ Wayne-Boone-Madison-Stanton-Cuming-Platte-Colfax-Dodge-Washington- Butler-Saunders-Douglas-Sarpy-Seward-Lancaster-Cass-Otoe-Saline- Jefferson-Gage-Johnson- 905 PM CDT Mon Mar 29 2021 ...RED FLAG WARNING IS CANCELLED... The National Weather Service in Omaha/Valley has cancelled the Red Flag Warning. Extreme fire danger is no longer expected. Fire danger will still be very high for a few hours this evening, so it would be good to still avoid any burning. $$ IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>017-034-091>093- 300315- /O.EXP.KOAX.FW.W.0003.000000T0000Z-210330T0200Z/ Monona-Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont- Page-Knox-Cedar-Thurston-Antelope-Pierce-Burt-Nemaha-Pawnee- Richardson- 905 PM CDT Mon Mar 29 2021 ...RED FLAG WARNING HAS EXPIRED... The National Weather Service in Omaha/Valley has allow the Red Flag Warning to expire. Extreme fire danger is no longer expected. Fire danger will still be very high for a few hours this evening, so it would be good to still avoid any burning. $$
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 3:17 AM CDT | Fire Weather Watch | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 11 hr |
| Mar 28, 2:10 PM CDT | Wind Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 30 hr |
Nearby
Red Flag Warnings in Nebraska, 2021Red Flag Warnings in Iowa, 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.