Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 12, NWS Hastings, NE

April 6, 2021Buffalo County, Dawson County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Apr 6, 2021, 7:29 PM CDT for Buffalo County, Dawson County, Nebraska. It was in force for 20 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 6, 2021, 7:29 PM CDT (00:29 UTC)
Expired: Apr 6, 2021, 7:49 PM CDT
In force: 20 min
Issued by: NWS Hastings, NE
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Buffalo County, NE, Dawson County, NE

The radar

The Grand Island radar (KUEX), 115 km from the middle of the area, began a volume at 00:31 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 6, 4:48 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.5 hours before the alert went out and 96 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 670 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 173 m²/s²
0-3 km storm-relative helicity: 362 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

As transmitted.

726 
WUUS53 KGID 070029
SVRGID
NEC019-047-070100-
/O.NEW.KGID.SV.W.0012.210407T0029Z-210407T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Hastings NE
729 PM CDT Tue Apr 6 2021

The National Weather Service in Hastings has issued a

* Severe Thunderstorm Warning for...
  Northwestern Buffalo County in south central Nebraska...
  Northeastern Dawson County in south central Nebraska...

* Until 800 PM CDT.

* At 728 PM CDT, a severe thunderstorm was located over Sumner, or 17
  miles northeast of Lexington, moving northeast at 25 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Sumner, and rural areas of far northeastern Dawson and far 
  northwestern Buffalo counties. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4105 9957 4105 9929 4104 9927 4088 9948
      4094 9962
TIME...MOT...LOC 0028Z 215DEG 20KT 4095 9950 

HAIL...1.25IN
WIND...60MPH
 
$$

Pfannkuch

2 follow-up statements

183 
WWUS53 KGID 070037
SVSGID

Severe Weather Statement
National Weather Service Hastings NE
737 PM CDT Tue Apr 6 2021

NEC019-047-070100-
/O.CON.KGID.SV.W.0012.000000T0000Z-210407T0100Z/
Buffalo NE-Dawson NE-
737 PM CDT Tue Apr 6 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR NORTHWESTERN BUFFALO AND NORTHEASTERN DAWSON COUNTIES...

At 737 PM CDT, a severe thunderstorm was located near Sumner, or 21
miles northeast of Lexington, moving northeast at 25 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated. Also, at 728 PM CDT, the public reported 
         nickel size hail in Sumner. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

This severe thunderstorm will remain over mainly rural areas of
far northwestern Buffalo and northeastern Dawson Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4105 9954 4105 9929 4104 9927 4093 9941
      4098 9956
TIME...MOT...LOC 0037Z 215DEG 23KT 4100 9945 

HAIL...1.00IN
WIND...60MPH
 
$$

Pfannkuch

850 
WWUS53 KGID 070049
SVSGID

Severe Weather Statement
National Weather Service Hastings NE
749 PM CDT Tue Apr 6 2021

NEC019-047-070059-
/O.CAN.KGID.SV.W.0012.000000T0000Z-210407T0100Z/
Buffalo NE-Dawson NE-
749 PM CDT Tue Apr 6 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BUFFALO AND
NORTHEASTERN DAWSON COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has weakened. 
However small hail and gusty winds are still possible with this 
thunderstorm.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
south central Nebraska.

LAT...LON 4105 9954 4105 9929 4104 9927 4093 9941
      4098 9956
TIME...MOT...LOC 0048Z 215DEG 20KT 4106 9940 

$$

Pfannkuch

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 7:00 PM CDT	Severe Thunderstorm Warning	GID	Dawson	30 min
Apr 6, 7:06 PM CDT	Severe Thunderstorm Warning	GID	Franklin, Webster	15 min
Apr 6, 7:40 PM CDT	Special Weather Statement	GID	Sherman	35 min
Apr 6, 7:52 PM CDT	Special Weather Statement	GID	Buffalo	23 min
Apr 6, 8:04 PM CDT	Special Weather Statement	GID	Howard, Kearney	41 min
Apr 6, 8:15 PM CDT	Special Weather Statement	GID	Buffalo, Sherman, Valley	30 min
Apr 6, 8:45 PM CDT	Special Weather Statement	GID	Nuckolls	45 min
Apr 6, 11:28 PM CDT	Special Weather Statement	GID	Thayer	47 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.