Alert archive / Nebraska / Tornado Warnings in 2021

Tornado Warning 3, NWS Omaha, NE

June 24, 2021Madison County, Stanton County, Nebraska

NWS Omaha, NE issued this tornado warning at Jun 24, 2021, 1:11 AM CDT for Madison County, Stanton County, Nebraska. It was in force for 34 min. 2 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, 1:11 AM CDT (06:11 UTC)
Expired: Jun 24, 2021, 1:45 AM CDT
In force: 34 min
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Madison County, NE, Stanton County, NE

The radar

The Omaha radar (KOAX), 105 km from the middle of the area, began a volume at 06:12 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, 1:21 AM CDT	TSTM WND DMG	Madison, NE	SEVERAL LARGE TREES DOWN.
Jun 24, 1:32 AM CDT	TSTM WND DMG	Stanton, NE	3 TO 4-FT DIAMETER TREES KNOCKED OVER, DOWNING POWERLINES. REPORT TIME BASED ON RADAR.

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, 6.2 hours before the alert went out and 105 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.

721 
WFUS53 KOAX 240611
TOROAX
NEC119-167-240645-
/O.NEW.KOAX.TO.W.0003.210624T0611Z-210624T0645Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Omaha/Valley Nebraska
111 AM CDT Thu Jun 24 2021

The National Weather Service in Omaha has issued a

* Tornado Warning for...
  Southeastern Madison County in northeastern Nebraska...
  Southwestern Stanton County in northeastern Nebraska...

* Until 145 AM CDT.
    
* At 111 AM CDT, a severe thunderstorm capable of producing a tornado
  was located near Madison, or 13 miles south of Norfolk, moving east
  at 50 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Stanton around 130 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4194 9758 4196 9717 4174 9718 4174 9740
      4178 9759
TIME...MOT...LOC 0611Z 274DEG 43KT 4185 9751 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

CA

1 follow-up statement

997 
WWUS53 KOAX 240637
SVSOAX

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

NEC119-167-240647-
/O.EXP.KOAX.TO.W.0003.000000T0000Z-210624T0645Z/
Madison NE-Stanton NE-
137 AM CDT Thu Jun 24 2021

...THE TORNADO WARNING FOR SOUTHEASTERN MADISON AND SOUTHWESTERN
STANTON COUNTIES WILL EXPIRE AT 145 AM CDT...
    
The tornado threat has diminished and the Tornado Warning has been 
cancelled. However, hail and damaging winds remain likely and a 
Severe Thunderstorm Warning remains in effect for the area.

A Severe Thunderstorm Watch remains in effect until 500 AM CDT for
northeastern Nebraska.

LAT...LON 4194 9758 4196 9717 4174 9718 4174 9740
      4178 9759
TIME...MOT...LOC 0637Z 274DEG 43KT 4183 9711 

$$

CA

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, 1:22 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, 1:43 AM CDT	Severe Thunderstorm Warning	OAX	Burt, Butler, Colfax, Cuming, Dodge, Douglas and 7 more	47 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

Tornado Warnings in Nebraska, 2021 Every tornado warning in 2021 Tornadoes 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.