Alert archive / Nebraska / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 310, NWS North Platte, NE

August 16, 2020Frontier County, Hayes County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 16, 2020, 3:10 PM CDT for Frontier County, Hayes County, Nebraska. It was in force for 50 min. 2 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: Aug 16, 2020, 3:10 PM CDT (20:10 UTC)
Expired: Aug 16, 2020, 4:00 PM CDT
In force: 50 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.5 in
Wind: 50.0 mph

Counties Frontier County, NE, Hayes County, NE

The radar

The Goodland radar (KGLD), 148 km from the middle of the area, began a volume at 20:13 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

Time	Report	Where	Remark
Aug 16, 3:14 PM CDT	HAIL 1.75	12 Ne Hayes Center, NE	GOLF BALL SIZED HAIL AND LOTS OF LIGHTNING
Aug 16, 3:48 PM CDT	HAIL 1.5	6 Ese Hayes Center, NE	MOSTLY QUARTER SIZED HAIL WITH A FEW PING PONG BALL SIZED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
Aug 16, 2:30 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.2 hours before the alert went out and 74 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: 1671 J/kg
Mixed-layer CIN: -219 J/kg
Mixed-layer LCL: 1180 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 200 m²/s²
0-3 km storm-relative helicity: 210 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted.

003 
WUUS53 KLBF 162010
SVRLBF
NEC063-085-162100-
/O.NEW.KLBF.SV.W.0310.200816T2010Z-200816T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
310 PM CDT Sun Aug 16 2020

The National Weather Service in North Platte has issued a

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

* Until 400 PM CDT.

* At 310 PM CDT, severe thunderstorms were located along a line
  extending from Curtis to 8 miles northeast of Hayes Center, moving
  south at 15 mph.

  HAZARD...Ping pong ball size hail.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect 
           damage to roofs, siding, windows, and vehicles.

* Locations impacted include...
  Curtis, Maywood, Quick, Marengo, Bluegill Haven Campground, Willow
  View Campground, Freedom, Hayes Center State Wildlife Management
  Area and Red Willow Reservoir State Recreation Area.

This includes Highway 83 between mile markers 27 and 48.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4035 10100 4066 10095 4066 10055 4035 10021
TIME...MOT...LOC 2010Z 339DEG 12KT 4061 10052 4058 10088 

HAIL...1.50IN
WIND...<50MPH
 
$$

CDC

2 follow-up statements

839 
WWUS53 KLBF 162017
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
317 PM CDT Sun Aug 16 2020

NEC063-085-162100-
/O.CON.KLBF.SV.W.0310.000000T0000Z-200816T2100Z/
Frontier NE-Hayes NE-
317 PM CDT Sun Aug 16 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR WESTERN FRONTIER AND EASTERN HAYES COUNTIES...

At 316 PM CDT, severe thunderstorms were located along a line
extending from near Curtis to 8 miles northeast of Hayes Center,
moving south at 15 mph.

HAZARD...Golf ball size hail.

SOURCE...Public. At 315 PM CDT, golf ball size hail was reported 
         12 miles northeast of Hayes Center.

IMPACT...People and animals outdoors will be injured. Expect damage 
         to roofs, siding, windows, and vehicles.

Locations impacted include...
Curtis, Maywood, Quick, Marengo, Bluegill Haven Campground, Willow
View Campground, Freedom, Hayes Center State Wildlife Management Area
and Red Willow Reservoir State Recreation Area.

This includes Highway 83 between mile markers 27 and 48.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4035 10100 4066 10095 4066 10055 4035 10021
TIME...MOT...LOC 2016Z 339DEG 12KT 4060 10051 4057 10087 

HAIL...1.75IN
WIND...<50MPH
 
$$

CDC

789 
WWUS53 KLBF 162040
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
340 PM CDT Sun Aug 16 2020

NEC063-162049-
/O.CAN.KLBF.SV.W.0310.000000T0000Z-200816T2100Z/
Frontier NE-
340 PM CDT Sun Aug 16 2020

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN FRONTIER COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
southwestern Nebraska.

LAT...LON 4056 10097 4058 10079 4035 10078 4035 10100
TIME...MOT...LOC 2039Z 008DEG 12KT 4050 10089 

$$

NEC085-162100-
/O.CON.KLBF.SV.W.0310.000000T0000Z-200816T2100Z/
Hayes NE-
340 PM CDT Sun Aug 16 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR SOUTHEASTERN HAYES COUNTY...

At 339 PM CDT, a severe thunderstorm was located 7 miles east of
Hayes Center, moving south at 15 mph.

HAZARD...Tennis ball size hail.

SOURCE...Public.

IMPACT...People and animals outdoors will be injured. Expect damage 
         to roofs, siding, windows, and vehicles.

This severe thunderstorm will remain over mainly rural areas of
southeastern Hayes County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.

&&

LAT...LON 4056 10097 4058 10079 4035 10078 4035 10100
TIME...MOT...LOC 2039Z 008DEG 12KT 4050 10089 

HAIL...2.50IN
WIND...<50MPH
 
$$

CDC

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 15, 9:06 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	24 min
Aug 16, 2:54 PM CDT	Special Weather Statement	LBF	Hayes	51 min
Aug 16, 2:55 PM CDT	Special Weather Statement	LBF	Frontier	50 min
Aug 16, 3:07 PM CDT	Severe Thunderstorm Warning	LBF	Chase, Hayes	38 min
Aug 16, 3:25 PM CDT	Severe Thunderstorm Warning	LBF	Hayes	20 min
Aug 16, 3:33 PM CDT	Special Weather Statement	LBF	Frontier	12 min
Aug 16, 3:43 PM CDT	Severe Thunderstorm Warning	LBF	Hayes	47 min
Aug 16, 3:48 PM CDT	Special Weather Statement	LBF	Frontier	27 min
Aug 16, 4:00 PM CDT	Severe Thunderstorm Warning	LBF	Frontier	34 min
Aug 16, 4:25 PM CDT	Areal Flood Advisory	LBF	Hayes	3 hr
Aug 16, 4:28 PM CDT	Special Weather Statement	LBF	Hayes	47 min
Aug 16, 4:41 PM CDT	Special Weather Statement	LBF	Hayes	34 min
Aug 16, 4:43 PM CDT	Special Weather Statement	LBF	Chase	32 min
Aug 16, 4:47 PM CDT	Severe Thunderstorm Warning	LBF	Chase	43 min
Aug 16, 4:59 PM CDT	Severe Thunderstorm Warning	LBF	Chase, Hayes	46 min
Aug 16, 5:54 PM CDT	Special Weather Statement	LBF	Chase	51 min
Aug 16, 6:52 PM CDT	Special Weather Statement	LBF	Frontier	38 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2020 Every severe thunderstorm warning in 2020

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.