Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 65, NWS Omaha, NE

June 24, 202113 counties in Nebraska; Monona County, Iowa

NWS Omaha, NE issued this severe thunderstorm warning at Jun 24, 2021, 1:43 AM CDT for 13 counties in Nebraska; Monona County, Iowa. It was in force for 47 min. 18 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 24, 2021, 1:43 AM CDT (06:43 UTC)
Expired: Jun 24, 2021, 2:30 AM CDT
In force: 47 min
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Hail: 0.75 in
Wind: 80.0 mph

Counties Monona County, IA, Burt County, NE, Butler County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Douglas County, NE, Madison County, NE, Platte County, NE, Saunders County, NE, Stanton County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE

The radar

The Omaha radar (KOAX), 83 km from the middle of the area, began a volume at 06:45 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.

What was reported inside it

Time	Report	Where	Remark
Jun 24, 1:48 AM CDT	TSTM WND DMG	2 Ene Columbus, NE	REPORT OF A MODULAR HOME ROOF BEING BLOWN OFF. TIME ESTIMATED BASED ON COLUMBUS AIRPORT PEAK GUST.
Jun 24, 1:48 AM CDT	TSTM WND DMG	Columbus, NE	NUMEROUS TREES AND LARGE BRANCHES DOWN IN COLUMBUS.
Jun 24, 1:48 AM CDT	TSTM WND GST 61	Columbus, NE
Jun 24, 1:55 AM CDT	TSTM WND GST 71	Howells, NE
Jun 24, 1:59 AM CDT	TSTM WND DMG	North Bend, NE	MULTIPLE LARGE TREE BRANCHES DOWN. REPORT TIME BASED ON RADAR.
Jun 24, 2:00 AM CDT	TSTM WND DMG	Fremont, NE	POWER OUTAGES.
Jun 24, 2:00 AM CDT	TSTM WND DMG	Scribner, NE	SEVERAL TREES AND POWERLINES DOWN.
Jun 24, 2:00 AM CDT	TSTM WND GST 62	3 Nne Snyder, NE	MEASURED ON PERSONAL WEATHER STATION.
Jun 24, 2:02 AM CDT	TSTM WND DMG	Scribner, NE	MULTIPLE TREES AND LARGE BRANCHES DOWN IN TOWN. REPORT AND PICTURES RECEIVED VIA SOCIAL MEDIA. REPORT TIME BASED ON RADAR.
Jun 24, 2:02 AM CDT	TSTM WND DMG	Scribner, NE	SEVERAL LARGE TREES DOWN.
Jun 24, 2:05 AM CDT	TSTM WND DMG	West Point, NE	NUMEROUS LARGE TREES DOWN THROUGHOUT TOWN.
Jun 24, 2:10 AM CDT	TSTM WND DMG	3 Nnw Fremont, NE	MAJOR POWER LINES DOWN. ROAD CLOSED. TIME ESTIMATED FROM RADAR.
Jun 24, 2:13 AM CDT	TSTM WND DMG	Cedar Bluffs, NE	POWERLINES DOWN.
Jun 24, 2:15 AM CDT	TSTM WND GST 60	2 Ene Winslow, NE	POWER IS OUT.
Jun 24, 2:20 AM CDT	TSTM WND GST 60	2 Nw Winslow, NE
Jun 24, 2:20 AM CDT	TSTM WND GST 61	5 S Pender, NE	MEASURED ON PERSONAL WEATHER STATION.
Jun 24, 2:25 AM CDT	TSTM WND GST 59	1 Wnw Fremont, NE	KFET GUST TO 51 KT.
Jun 24, 2:37 AM CDT	TSTM WND DMG	Cedar Bluffs, NE	REPORT FROM MPING: 3-INCH TREE LIMBS BROKEN; POWER POLES BROKEN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 23, 10:37 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 6.7 hours before the alert went out and 82 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2039 J/kg
Mixed-layer CIN: -306 J/kg
Mixed-layer LCL: 1664 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 168 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

842 
WUUS53 KOAX 240643
SVROAX
IAC133-NEC021-023-037-039-053-055-119-141-155-167-173-177-179-240730-
/O.NEW.KOAX.SV.W.0065.210624T0643Z-210624T0730Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Omaha/Valley Nebraska
143 AM CDT Thu Jun 24 2021

The National Weather Service in Omaha has issued a

* Severe Thunderstorm Warning for...
  Western Monona County in west central Iowa...
  Eastern Madison County in northeastern Nebraska...
  Burt County in east central Nebraska...
  Colfax County in northeastern Nebraska...
  Eastern Platte County in northeastern Nebraska...
  Northwestern Douglas County in east central Nebraska...
  Northern Saunders County in east central Nebraska...
  Southern Wayne County in northeastern Nebraska...
  Cuming County in northeastern Nebraska...
  Washington County in east central Nebraska...
  Dodge County in east central Nebraska...
  Thurston County in northeastern Nebraska...
  Northern Butler County in east central Nebraska...
  Stanton County in northeastern Nebraska...

* Until 230 AM CDT.

* At 142 AM CDT, severe thunderstorms were located along a line
  extending from 7 miles north of Wisner to 6 miles north of
  Brainard, moving east at 65 mph.

  These are very dangerous storms.

  HAZARD...80 mph wind gusts and penny size hail.

  SOURCE...Radar indicated. This storm has a history of producing 
           80mph gusts and uprooting large trees. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be heavily damaged. Expect 
           considerable damage to roofs, windows, and vehicles. 
           Extensive tree damage and power outages are likely.

* Severe thunderstorms will be near...
  Pender around 150 AM CDT.
  Walthill and Bancroft around 200 AM CDT.

Other locations in the path of these severe thunderstorms include
Lyons, Macy, Decatur and Onawa.

This includes Interstate 29 between mile markers 109 and 125.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

&&

LAT...LON 4179 9749 4209 9739 4209 9737 4217 9736
      4221 9608 4136 9619 4132 9736 4140 9738
      4133 9760
TIME...MOT...LOC 0642Z 277DEG 57KT 4209 9691 4128 9699 

HAIL...0.75IN
WIND...80MPH
 
$$

Nicolaisen

2 follow-up statements

827 
WWUS53 KOAX 240651
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
151 AM CDT Thu Jun 24 2021

IAC133-NEC021-023-037-039-053-055-119-141-155-167-173-177-179-240730-
/O.CON.KOAX.SV.W.0065.000000T0000Z-210624T0730Z/
Monona IA-Madison NE-Burt NE-Colfax NE-Platte NE-Douglas NE-
Saunders NE-Wayne NE-Cuming NE-Washington NE-Dodge NE-Thurston NE-
Butler NE-Stanton NE-
151 AM CDT Thu Jun 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 AM CDT
FOR WESTERN MONONA...EASTERN MADISON...BURT...COLFAX...EASTERN
PLATTE...NORTHWESTERN DOUGLAS...NORTHERN SAUNDERS...SOUTHERN WAYNE...
CUMING...WASHINGTON...DODGE...THURSTON...NORTHERN BUTLER AND STANTON
COUNTIES...

At 150 AM CDT, severe thunderstorms were located along a line
extending from near Pender to near Prague, moving east at 65 mph.

These are very dangerous storms.

HAZARD...80 mph wind gusts.

SOURCE...Radar indicated. The Columbus Airport recorded a 61mph gust 
         at 1:48am. This storm has a history of producing gusts over 
         80mph and uprooting large trees. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

These severe storms will be near...
  Bancroft around 200 AM CDT.

Other locations in the path of these severe thunderstorms include
Walthill, Macy, Decatur, Whiting and Onawa.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

&&

LAT...LON 4179 9749 4209 9739 4209 9737 4217 9736
      4221 9608 4136 9619 4132 9736 4140 9738
      4133 9760
TIME...MOT...LOC 0650Z 270DEG 57KT 4208 9677 4127 9685 

HAIL...<.75IN
WIND...80MPH
 
$$

Nicolaisen

440 
WWUS53 KOAX 240706
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
206 AM CDT Thu Jun 24 2021

IAC133-NEC021-023-037-039-053-055-119-141-155-167-173-177-179-240730-
/O.CON.KOAX.SV.W.0065.000000T0000Z-210624T0730Z/
Monona IA-Madison NE-Burt NE-Colfax NE-Platte NE-Douglas NE-
Saunders NE-Wayne NE-Cuming NE-Washington NE-Dodge NE-Thurston NE-
Butler NE-Stanton NE-
206 AM CDT Thu Jun 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 AM CDT
FOR WESTERN MONONA...EASTERN MADISON...BURT...COLFAX...EASTERN
PLATTE...NORTHWESTERN DOUGLAS...NORTHERN SAUNDERS...SOUTHERN WAYNE...
CUMING...WASHINGTON...DODGE...THURSTON...NORTHERN BUTLER AND STANTON
COUNTIES...

At 204 AM CDT, severe thunderstorms were located along a line
extending from 4 miles northeast of Bancroft to near Wahoo, moving
east at 65 mph.

These are very dangerous storms.

HAZARD...80 mph wind gusts.

SOURCE...Doppler Radar. Trained weather spotters recorded a gust of 
         71 mph in Howells, NE at 1:55AM. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

These severe storms will be near...
  Macy around 210 AM CDT.

Other locations in the path of these severe thunderstorms include
Decatur, Whiting and Onawa.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

&&

LAT...LON 4179 9749 4209 9739 4209 9737 4217 9736
      4221 9608 4136 9619 4132 9736 4140 9738
      4133 9760
TIME...MOT...LOC 0704Z 277DEG 57KT 4206 9651 4125 9659 

HAIL...<.75IN
WIND...80MPH
 
$$

Nicolaisen

The office that day

Everything else NWS Omaha, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 23, 11:27 PM CDT	Severe Thunderstorm Warning	OAX	Antelope, Knox, Madison, Pierce	48 min
Jun 24, 12:12 AM CDT	Severe Thunderstorm Warning	OAX	Antelope, Madison, Pierce, Stanton, Wayne	48 min
Jun 24, 12:40 AM CDT	Severe Thunderstorm Warning	OAX	Antelope, Boone, Madison, Platte	50 min
Jun 24, 12:58 AM CDT	Severe Thunderstorm Warning	OAX	Antelope, Boone, Colfax, Cuming, Madison, Pierce and 3 more	47 min
Jun 24, 1:11 AM CDT	Tornado Warning	OAX	Madison, Stanton	34 min
Jun 24, 1:22 AM CDT	Severe Thunderstorm Warning	OAX	Burt, Butler, Colfax, Cuming, Dodge, Madison and 5 more	23 min
Jun 24, 1:41 AM CDT	Tornado Warning	OAX	Colfax, Cuming, Dodge, Stanton	34 min
Jun 24, 1:55 AM CDT	Severe Thunderstorm Warning	OAX	Butler, Colfax, Dodge, Lancaster, Saunders, Seward	50 min
Jun 24, 2:15 AM CDT	Severe Thunderstorm Warning	OAX	Burt, Cass, Dodge, Douglas, Sarpy, Saunders and 2 more	60 min
Jun 24, 2:24 AM CDT	Severe Thunderstorm Warning	OAX	Cass, Gage, Jefferson, Lancaster, Otoe, Saline and 1 more	51 min
Jun 24, 2:51 AM CDT	Severe Thunderstorm Warning	OAX	Cass, Gage, Johnson, Lancaster, Otoe, Sarpy	39 min
Jun 24, 2:54 AM CDT	Severe Thunderstorm Warning	OAX	Cass, Gage, Johnson, Lancaster, Otoe, Sarpy	36 min
Jun 24, 3:17 AM CDT	Severe Thunderstorm Warning	OAX	Johnson, Nemaha, Otoe, Pawnee, Richardson	58 min
Jun 24, 2:23 PM CDT	Flash Flood Watch	OAX	Cass, Gage, Jefferson, Johnson, Lancaster, Nemaha and 4 more	37 hr
Jun 24, 5:10 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Lancaster, Otoe	40 min
Jun 24, 5:34 PM CDT	Flash Flood Warning	OAX	Cass, Lancaster, Otoe	4 hr
Jun 24, 5:35 PM CDT	Severe Thunderstorm Warning	OAX	Gage, Jefferson, Saline, Seward	40 min
Jun 24, 5:43 PM CDT	Tornado Warning	OAX	Otoe	47 min
Jun 24, 5:51 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Sarpy, Saunders	54 min
Jun 24, 5:55 PM CDT	Severe Thunderstorm Warning	OAX	Lancaster, Saline, Seward	50 min
Jun 24, 6:07 PM CDT	Tornado Warning	OAX	Otoe	38 min
Jun 24, 6:12 PM CDT	Flash Flood Warning	OAX	Pawnee, Richardson	8 hr
Jun 24, 6:12 PM CDT	Severe Thunderstorm Warning	OAX	Gage, Lancaster, Saline, Seward	48 min
Jun 24, 6:16 PM CDT	Special Weather Statement	OAX	Douglas	89 min
Jun 24, 6:28 PM CDT	Severe Thunderstorm Warning	OAX	Richardson	47 min
Jun 24, 6:32 PM CDT	Flash Flood Warning	OAX	Cass	3 hr
Jun 24, 6:34 PM CDT	Tornado Warning	OAX	Richardson	41 min
Jun 24, 6:43 PM CDT	Severe Thunderstorm Warning	OAX	Otoe	47 min
Jun 24, 6:48 PM CDT	Flash Flood Warning	OAX	Saline, Seward	3 hr

Nearby

Severe Thunderstorm Warnings in Nebraska, 2021 Severe Thunderstorm Warnings in Iowa, 2021 Every severe thunderstorm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.