Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 7, NWS Hastings, NE

April 4, 20216 counties in Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Apr 4, 2021, 7:31 PM CDT for 6 counties in Nebraska. It was in force for 44 min. 3 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
Apr 4, 2021, 7:31 PM CDT (00:31 UTC)
Expired
Apr 4, 2021, 8:15 PM CDT
In force
44 min
Issued by
NWS Hastings, NE
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Adams County, NE, Clay County, NE, Hall County, NE, Hamilton County, NE, Howard County, NE, Merrick County, NE

The radar

The Grand Island radar (KUEX), 64 km from the middle of the area, began a volume at 00:33 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

TimeReportWhereRemark
Apr 4, 7:36 PM CDTTSTM WND GST 502 Sw Chapman, NEMESONET STATION UP140 CHAPMAN 1.8SW (UPR).
Apr 4, 7:43 PM CDTTSTM WND GST 501 W Trumbull, NE
Apr 4, 7:59 PM CDTTSTM WND GST 518 Ne Archer, NE

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 00:00Z, 0.5 hours before the alert went out and 160 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-pSkew-T log-p diagram, Omaha, NE at 00:00Z on 2021-04-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 452 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 2021-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
452 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
3078 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
150 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

222 
WUUS53 KGID 050031
SVRGID
NEC001-035-079-081-093-121-050115-
/O.NEW.KGID.SV.W.0007.210405T0031Z-210405T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Hastings NE
731 PM CDT Sun Apr 4 2021

The National Weather Service in Hastings has issued a

* Severe Thunderstorm Warning for...
  Northern Clay County in south central Nebraska...
  Northern Adams County in south central Nebraska...
  Hamilton County in south central Nebraska...
  Merrick County in central Nebraska...
  Southern Howard County in central Nebraska...
  Hall County in south central Nebraska...

* Until 815 PM CDT.

* At 730 PM CDT, severe thunderstorms were located along a line
  extending from near Boelus to near Phillips to near Inland, moving
  northeast at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated. At 722 PM CDT, a wind gust of 62 mph was 
           reported at Hastings Airport.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Grand Island, Hastings, Aurora, Central City, Sutton, Wood River,
  Harvard, Kenesaw, Doniphan, Cairo, Clay Center, Juniata, Alda,
  Palmer, Hampton, Giltner, Glenvil, Dannebrog, Phillips and Chapman.

This includes Interstate 80 between mile markers 293 and 341.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Wind damage with these storms may occur before any rain or 
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&

LAT...LON 4054 9783 4043 9857 4067 9871 4111 9872
      4125 9830 4126 9800 4117 9784 4076 9782
TIME...MOT...LOC 0030Z 242DEG 34KT 4110 9865 4087 9827 4057 9827 

HAIL...<.75IN
WIND...60MPH
 
$$

Thies
3 follow-up statements
106 
WWUS53 KGID 050050
SVSGID

Severe Weather Statement
National Weather Service Hastings NE
750 PM CDT Sun Apr 4 2021

NEC001-035-079-081-093-121-050115-
/O.CON.KGID.SV.W.0007.000000T0000Z-210405T0115Z/
Clay NE-Adams NE-Hamilton NE-Merrick NE-Howard NE-Hall NE-
750 PM CDT Sun Apr 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHERN CLAY...NORTHEASTERN ADAMS...HAMILTON...MERRICK...
SOUTHEASTERN HOWARD AND EASTERN HALL COUNTIES...

At 749 PM CDT, severe thunderstorms were located along a line
extending from near Palmer to near Marquette to near Harvard, moving
east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Grand Island, Aurora, Central City, Sutton, Harvard, Doniphan, Clay
Center, Palmer, Hampton, Giltner, Chapman, Phillips, Marquette,
Trumbull, Hordville, Inland, Saronville, Stockham, Hansen and Archer.

This includes Interstate 80 between mile markers 311 and 341.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Hastings.

Wind damage with these storms may occur before any rain or 
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&

LAT...LON 4048 9821 4070 9838 4118 9852 4125 9830
      4126 9800 4117 9784 4076 9782 4054 9783
TIME...MOT...LOC 0049Z 257DEG 41KT 4120 9825 4096 9799 4062 9805 

HAIL...<.75IN
WIND...60MPH
 
$$

Thies
758 
WWUS53 KGID 050100
SVSGID

Severe Weather Statement
National Weather Service Hastings NE
800 PM CDT Sun Apr 4 2021

NEC001-079-093-050109-
/O.CAN.KGID.SV.W.0007.000000T0000Z-210405T0115Z/
Adams NE-Howard NE-Hall NE-
800 PM CDT Sun Apr 4 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ADAMS...
SOUTHEASTERN HOWARD AND EASTERN HALL COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 4051 9802 4092 9797 4125 9819 4126 9800
      4117 9784 4076 9782 4054 9783
TIME...MOT...LOC 0059Z 241DEG 34KT 4125 9814 4101 9788 4068 9788 

$$

NEC035-081-121-050115-
/O.CON.KGID.SV.W.0007.000000T0000Z-210405T0115Z/
Clay NE-Hamilton NE-Merrick NE-
800 PM CDT Sun Apr 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHEASTERN CLAY...EASTERN HAMILTON AND CENTRAL MERRICK
COUNTIES...

At 759 PM CDT, severe thunderstorms were located along a line
extending from near Palmer to near Hordville to near Stockham, moving
northeast at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Central City, Sutton, Hampton, Marquette, Hordville, Saronville,
Stockham and Archer.

This includes Interstate 80 between mile markers 333 and 341.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Hastings.

&&

LAT...LON 4051 9802 4092 9797 4125 9819 4126 9800
      4117 9784 4076 9782 4054 9783
TIME...MOT...LOC 0059Z 241DEG 34KT 4125 9814 4101 9788 4068 9788 

HAIL...<.75IN
WIND...60MPH
 
$$

Thies
637 
WWUS53 KGID 050106
SVSGID

Severe Weather Statement
National Weather Service Hastings NE
806 PM CDT Sun Apr 4 2021

NEC035-081-121-050116-
/O.EXP.KGID.SV.W.0007.000000T0000Z-210405T0115Z/
Clay NE-Hamilton NE-Merrick NE-
806 PM CDT Sun Apr 4 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CLAY...EASTERN
HAMILTON AND CENTRAL MERRICK COUNTIES WILL EXPIRE AT 815 PM CDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with these thunderstorms.

LAT...LON 4051 9802 4092 9797 4125 9819 4126 9800
      4117 9784 4076 9782 4054 9783
TIME...MOT...LOC 0106Z 242DEG 34KT 4127 9808 4103 9782 4070 9782 

$$

Thies

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 4, 7:00 PM CDTSpecial Weather StatementGIDAdams, Hall45 min
Apr 4, 7:25 PM CDTSpecial Weather StatementGIDClay, Hall, Hamilton, Merrick, York50 min
Apr 4, 8:06 PM CDTSpecial Weather StatementGIDPolk, York39 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2021Every 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.