Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 17, NWS North Platte, NE

May 16, 2021Frontier County, Hayes County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 16, 2021, 9:33 PM CDT for Frontier County, Hayes County, Nebraska. It was in force for 18 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 16, 2021, 9:33 PM CDT (02:33 UTC)
Expired: May 16, 2021, 9:51 PM CDT
In force: 18 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.25 in
Wind: 50.0 mph

Counties Frontier County, NE, Hayes County, NE

The radar

The Goodland radar (KGLD), 156 km from the middle of the area, began a volume at 02:33 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.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.6 hours before the alert went out and 68 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: 751 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 872 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 179 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

As transmitted.

083 
WUUS53 KLBF 170233
SVRLBF
NEC063-085-170330-
/O.NEW.KLBF.SV.W.0017.210517T0233Z-210517T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
933 PM CDT Sun May 16 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Western Frontier County in southwestern Nebraska...
  Southeastern Hayes County in southwestern Nebraska...

* Until 1030 PM CDT.

* At 933 PM CDT, a severe thunderstorm was located 7 miles southwest
  of Curtis, moving south at 20 mph.

  HAZARD...Half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Quick, Bluegill Haven Campground, Willow View Campground and Red
  Willow Reservoir State Recreation Area.

This includes Highway 83 between mile markers 27 and 46.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4064 10067 4061 10051 4035 10051 4035 10093
TIME...MOT...LOC 0233Z 018DEG 16KT 4058 10063 

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

Kulik

1 follow-up statement

468 
WWUS53 KLBF 170251
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
951 PM CDT Sun May 16 2021

NEC063-085-170301-
/O.CAN.KLBF.SV.W.0017.000000T0000Z-210517T0330Z/
Frontier NE-Hayes NE-
951 PM CDT Sun May 16 2021

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN FRONTIER AND
SOUTHEASTERN HAYES COUNTIES IS CANCELLED...
                
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 cancelled.  However, heavy rain is 
still possible with this thunderstorm.

LAT...LON 4064 10067 4061 10051 4035 10051 4035 10093
TIME...MOT...LOC 0250Z 018DEG 16KT 4050 10066 

$$

Kulik

The office that day

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

Issued	Product	Office	Counties	Lasted
May 16, 9:25 PM CDT	Special Weather Statement	LBF	Frontier	65 min
May 17, 2:31 AM CDT	Areal Flood Advisory	LBF	Chase	31 min
May 17, 3:02 AM CDT	Flash Flood Warning	LBF	Chase	3 hr
May 17, 9:37 AM CDT	Areal Flood Warning	LBF	Keith, Lincoln, McPherson	3 hr

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.