Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 8, NWS Hastings, NE

April 6, 2021Dawson County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Apr 6, 2021, 5:59 PM CDT for 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, 5:59 PM CDT (22:59 UTC)
Expired: Apr 6, 2021, 6:19 PM CDT
In force: 20 min
Issued by: NWS Hastings, NE
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Dawson County, NE

The radar

The North Platte radar (KLNX), 121 km from the middle of the area, began a volume at 22:58 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 12:00Z, 11.0 hours before the alert went out and 59 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: 91 J/kg
Mixed-layer CIN: -649 J/kg
Mixed-layer LCL: 1066 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 136 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

842 
WUUS53 KGID 062259
SVRGID
NEC047-062345-
/O.NEW.KGID.SV.W.0008.210406T2259Z-210406T2345Z/

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

The National Weather Service in Hastings has issued a

* Severe Thunderstorm Warning for...
  North central Dawson County in south central Nebraska...

* Until 645 PM CDT.

* At 558 PM CDT, a severe thunderstorm was located near Cozad, or 14
  miles northwest 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.

* This severe thunderstorm will remain over mainly rural areas of
  north central Dawson County, north-northeast of Cozad. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4105 9998 4105 9980 4088 9988 4091 9999
TIME...MOT...LOC 2258Z 203DEG 22KT 4095 9992 

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

Pfannkuch

2 follow-up statements

352 
WWUS53 KGID 062311
SVSGID

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

NEC047-062345-
/O.CON.KGID.SV.W.0008.000000T0000Z-210406T2345Z/
Dawson NE-
611 PM CDT Tue Apr 6 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTH CENTRAL DAWSON COUNTY...

At 610 PM CDT, a severe thunderstorm was located 10 miles southwest
of Oconto, or 18 miles northwest of Lexington, moving northeast at 25
mph.

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

SOURCE...Radar indicated.

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 north
central Dawson County, several miles north-northeast of Cozad. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4105 9998 4105 9980 4093 9986 4096 9994
TIME...MOT...LOC 2310Z 203DEG 22KT 4102 9988 

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

Pfannkuch

627 
WWUS53 KGID 062319
SVSGID

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

NEC047-062329-
/O.CAN.KGID.SV.W.0008.000000T0000Z-210406T2345Z/
Dawson NE-
619 PM CDT Tue Apr 6 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL DAWSON COUNTY IS
CANCELLED...
        
The storm which prompted the warning has weakened below severe 
limits, and is also in the process of exiting the warned area to the 
north. Therefore, the warning has been cancelled.  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 9998 4105 9980 4093 9986 4096 9994
TIME...MOT...LOC 2317Z 203DEG 22KT 4107 9985 

$$

Pfannkuch

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 5:50 PM CDT	Special Weather Statement	GID	Dawson	25 min
Apr 6, 6:27 PM CDT	Special Weather Statement	GID	Dawson	48 min
Apr 6, 6:45 PM CDT	Special Weather Statement	GID	Dawson	30 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.