Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 13, NWS North Platte, NE

May 15, 2021Lincoln County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 15, 2021, 8:06 PM CDT for Lincoln County, Nebraska. It was in force for 39 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: May 15, 2021, 8:06 PM CDT (01:06 UTC)
Expired: May 15, 2021, 8:45 PM CDT
In force: 39 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.25 in
Wind: 50.0 mph

County Lincoln County, NE

The radar

The North Platte radar (KLNX), 80 km from the middle of the area, began a volume at 01:06 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 nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.1 hours before the alert went out and 32 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: 266 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 1597 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 90 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

262 
WUUS53 KLBF 160106
SVRLBF
NEC111-160145-
/O.NEW.KLBF.SV.W.0013.210516T0106Z-210516T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
806 PM CDT Sat May 15 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Northwestern Lincoln County in southwestern Nebraska...

* Until 845 PM CDT.

* At 805 PM CDT, a severe thunderstorm was located 9 miles north of
  Hershey, or 15 miles northwest of North Platte, moving east at 10
  mph.

  HAZARD...Half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* This severe thunderstorm will remain over mainly rural areas of
  northwestern Lincoln County.

This includes the following highways...
 Highway 97 between mile markers 1 and 16.
 Highway 83 between mile markers 86 and 88.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4124 10107 4139 10106 4139 10067 4117 10074
TIME...MOT...LOC 0105Z 278DEG 9KT 4129 10099 

HAIL...1.25IN
WIND...<50MPH
 
$$

Taylor

2 follow-up statements

142 
WWUS53 KLBF 160120
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
820 PM CDT Sat May 15 2021

NEC111-160145-
/O.CON.KLBF.SV.W.0013.000000T0000Z-210516T0145Z/
Lincoln NE-
820 PM CDT Sat May 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR NORTHWESTERN LINCOLN COUNTY...

At 819 PM CDT, a severe thunderstorm was located 10 miles north of
Hershey, or 14 miles northwest of North Platte, moving east at 15
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
northwestern Lincoln County.

This includes the following highways...
 Highway 97 between mile markers 1 and 16.
 Highway 83 between mile markers 86 and 88.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4124 10107 4139 10106 4139 10067 4117 10074
TIME...MOT...LOC 0119Z 261DEG 13KT 4130 10095 

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

Taylor

253 
WWUS53 KLBF 160145
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
845 PM CDT Sat May 15 2021

NEC111-160155-
/O.EXP.KLBF.SV.W.0013.000000T0000Z-210516T0145Z/
Lincoln NE-
845 PM CDT Sat May 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN LINCOLN COUNTY
HAS EXPIRED...
                
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 has been allowed to expire.  However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.

LAT...LON 4124 10107 4139 10106 4139 10067 4117 10074
TIME...MOT...LOC 0145Z 278DEG 9KT 4129 10087 

$$

Taylor

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 7:01 PM CDT	Special Weather Statement	LBF	Chase	44 min
May 15, 7:03 PM CDT	Special Weather Statement	LBF	Perkins	42 min
May 15, 7:31 PM CDT	Special Weather Statement	LBF	Lincoln	44 min
May 15, 7:42 PM CDT	Severe Thunderstorm Warning	LBF	Perkins	48 min
May 15, 7:48 PM CDT	Special Weather Statement	LBF	Arthur	42 min
May 15, 8:13 PM CDT	Severe Thunderstorm Warning	LBF	Keith	47 min
May 15, 8:35 PM CDT	Special Weather Statement	LBF	Perkins	40 min
May 15, 8:44 PM CDT	Severe Thunderstorm Warning	LBF	Perkins	46 min
May 15, 9:06 PM CDT	Special Weather Statement	LBF	Lincoln	39 min
May 15, 9:07 PM CDT	Special Weather Statement	LBF	Custer	38 min
May 15, 9:23 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	52 min
May 15, 9:42 PM CDT	Special Weather Statement	LBF	Perkins	48 min
May 15, 10:56 PM CDT	Special Weather Statement	LBF	Perkins	49 min
May 16, 12:08 AM CDT	Special Weather Statement	LBF	Perkins	52 min
May 16, 12:21 AM CDT	Areal Flood Warning	LBF	Lincoln, Perkins	4 hr
May 16, 4:16 AM CDT	Areal Flood Advisory	LBF	Cherry, Grant, Hooker	3 hr
May 16, 4:38 AM CDT	Areal Flood Advisory	LBF	Sheridan	101 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.