Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 7, NWS Omaha, NE

May 2, 2021Dodge County, Saunders County, Washington County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at May 2, 2021, 6:17 PM CDT for Dodge County, Saunders County, Washington County, Nebraska. It was in force for 43 min. 1 report 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: May 2, 2021, 6:17 PM CDT (23:17 UTC)
Expired: May 2, 2021, 7:00 PM CDT
In force: 43 min
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Dodge County, NE, Saunders County, NE, Washington County, NE

The radar

The Omaha radar (KOAX), 14 km from the middle of the area, began a volume at 23:20 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
May 2, 6:45 PM CDT	TSTM WND GST 60	1 Sw Inglewood, NE	ESTIMATED GUSTS TO BE IN EXCESS OF 60 MPH.

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

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 11.3 hours before the alert went out and 14 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: 179 J/kg
Mixed-layer CIN: -495 J/kg
Mixed-layer LCL: 1127 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 187 m²/s²
0-3 km storm-relative helicity: 215 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

709 
WUUS53 KOAX 022317
SVROAX
NEC053-155-177-030000-
/O.NEW.KOAX.SV.W.0007.210502T2317Z-210503T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Omaha/Valley Nebraska
617 PM CDT Sun May 2 2021

The National Weather Service in Omaha has issued a

* Severe Thunderstorm Warning for...
  Southwestern Washington County in east central Nebraska...
  Southeastern Dodge County in east central Nebraska...
  North central Saunders County in east central Nebraska...

* Until 700 PM CDT.

* At 616 PM CDT, a severe thunderstorm was located over Cedar Bluffs,
  or 33 miles west of Omaha, moving northeast at 35 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Fremont, Arlington, Cedar Bluffs, Nickerson, Kennard, Inglewood,
  Camp Eagle, Camp Cedars and Fremont Lakes State Recreation Area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4148 9619 4139 9642 4139 9647 4138 9646
      4128 9670 4139 9677 4164 9637
TIME...MOT...LOC 2316Z 235DEG 29KT 4140 9663 

HAIL...1.00IN
WIND...<50MPH
 
$$

Fajman

3 follow-up statements

869 
WWUS53 KOAX 022333
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
633 PM CDT Sun May 2 2021

NEC053-155-177-030000-
/O.CON.KOAX.SV.W.0007.000000T0000Z-210503T0000Z/
Washington NE-Dodge NE-Saunders NE-
633 PM CDT Sun May 2 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR SOUTHWESTERN WASHINGTON...SOUTHEASTERN DODGE AND NORTH CENTRAL
SAUNDERS COUNTIES...

At 633 PM CDT, a severe thunderstorm was located over Fremont, or 28
miles northwest of Omaha, moving northeast at 35 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Fremont, Arlington, Cedar Bluffs, Nickerson, Kennard, Inglewood, Camp
Eagle, Camp Cedars and Fremont Lakes State Recreation Area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4148 9619 4139 9642 4139 9647 4138 9646
      4131 9663 4142 9672 4164 9637
TIME...MOT...LOC 2333Z 235DEG 29KT 4148 9647 

HAIL...1.00IN
WIND...<50MPH
 
$$

Fajman

390 
WWUS53 KOAX 022350
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
650 PM CDT Sun May 2 2021

NEC053-155-177-030000-
/O.CON.KOAX.SV.W.0007.000000T0000Z-210503T0000Z/
Washington NE-Dodge NE-Saunders NE-
650 PM CDT Sun May 2 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR SOUTHWESTERN WASHINGTON...SOUTHEASTERN DODGE AND NORTH CENTRAL
SAUNDERS COUNTIES...

At 644 PM CDT, a severe thunderstorm was located 5 miles east of
Nickerson, or 26 miles northwest of Omaha, moving northeast at 35
mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Fremont, Arlington, Cedar Bluffs, Nickerson, Kennard, Inglewood, Camp
Eagle, Camp Cedars and Fremont Lakes State Recreation Area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4133 9658 4144 9668 4164 9637 4148 9619
      4139 9642 4139 9647 4138 9646
TIME...MOT...LOC 2344Z 235DEG 29KT 4153 9637 

HAIL...1.00IN
WIND...<50MPH
 
$$

Fajman

904 
WWUS53 KOAX 022357
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
657 PM CDT Sun May 2 2021

NEC053-155-177-030007-
/O.EXP.KOAX.SV.W.0007.000000T0000Z-210503T0000Z/
Washington NE-Dodge NE-Saunders NE-
657 PM CDT Sun May 2 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WASHINGTON...
SOUTHEASTERN DODGE AND NORTH CENTRAL SAUNDERS COUNTIES WILL EXPIRE AT
700 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However small hail 
and gusty winds are still possible with this thunderstorm.

LAT...LON 4133 9658 4144 9668 4164 9637 4148 9619
      4139 9642 4139 9647 4138 9646
TIME...MOT...LOC 2357Z 235DEG 29KT 4159 9626 

$$

Fajman

The office that day

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

Issued	Product	Office	Counties	Lasted
May 2, 6:22 PM CDT	Severe Thunderstorm Warning	OAX	Seward	38 min
May 2, 6:55 PM CDT	Severe Thunderstorm Warning	OAX	Burt, Washington	50 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 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.