Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 100, NWS North Platte, NE

July 16, 2021Cherry County, Sheridan County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 16, 2021, 7:42 PM MDT for Cherry County, Sheridan County, Nebraska. It was in force for 63 min. 4 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: Jul 16, 2021, 7:42 PM MDT (01:42 UTC)
Expired: Jul 16, 2021, 8:45 PM MDT
In force: 63 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.75 in
Wind: 70.0 mph

Counties Cherry County, NE, Sheridan County, NE

The radar

The Rapid City radar (KUDX), 165 km from the middle of the area, began a volume at 01:43 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
Jul 16, 7:43 PM MDT	HAIL 1	6 N Gordon, NE
Jul 16, 7:47 PM MDT	TSTM WND GST 55	5 E Gordon, NE	BLOWING DUST/DIRT. REPORT VIA NWS CHAT.
Jul 16, 7:55 PM MDT	TSTM WND GST 60	Hay Springs, NE
Jul 16, 8:00 PM MDT	TSTM WND GST 60	11 Sw Merriman, NE	REPORT VIA NWS CHAT.

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
Jul 16, 3:55 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 1.7 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-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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3551 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 211 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

828 
WUUS53 KLBF 170142
SVRLBF
NEC031-161-170245-
/O.NEW.KLBF.SV.W.0100.210717T0142Z-210717T0245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
742 PM MDT Fri Jul 16 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Northwestern Cherry County in north central Nebraska...
  Central Sheridan County in the Panhandle of Nebraska...

* Until 845 PM MDT.

* At 741 PM MDT, severe thunderstorms were located along a line
  extending from 9 miles northeast of Gordon to near Hay Springs,
  moving southeast at 25 mph.

  HAZARD...Golf ball size hail and 70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           considerable tree damage. Wind damage is also likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Gordon, Rushville, Hay Springs, Merriman, Medicine Lake, Clinton,
  Lone Butte, Irwin, Intersection of Beaver Creek Road and White 
  Clay Creek Road, Rock Hill, Hoover Lake, Mount Maria, Intersection 
  of Highway 20 and Irwin Road, Highway 250 crossing the Niobrara 
  River, Walgren Lake, Shell Lake and Bayonne.

This includes the following highways...
 Highway 20 between mile markers 74 and 147.
 Highway 250 between mile markers 23 and 48.
 Highway 61 between mile markers 202 and 231.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms are producing destructive winds and large damaging hail.
SEEK SHELTER NOW inside a sturdy structure and stay away from
windows!
 
&&

LAT...LON 4283 10279 4300 10209 4300 10152 4270 10135
      4236 10239 4234 10275 4244 10275 4244 10277
      4278 10277
TIME...MOT...LOC 0141Z 304DEG 22KT 4292 10208 4270 10276 

HAIL...1.75IN
WIND...70MPH
 
$$

CDC

2 follow-up statements

901 
WWUS53 KLBF 170202
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
802 PM MDT Fri Jul 16 2021

NEC031-161-170245-
/O.CON.KLBF.SV.W.0100.000000T0000Z-210717T0245Z/
Cherry NE-Sheridan NE-
802 PM MDT Fri Jul 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM MDT
FOR NORTHWESTERN CHERRY AND CENTRAL SHERIDAN COUNTIES...

At 801 PM MDT, severe thunderstorms were located along a line
extending from near Merriman to 9 miles southeast of Hay Springs,
moving southeast at 30 mph.

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

SOURCE...Public.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Gordon, Rushville, Hay Springs, Merriman, Medicine Lake, Clinton, 
Lone Butte, Irwin, Smith Lake, Walgren Lake, Shell Lake, Rock Hill, 
Bayonne, Hoover Lake and Highway 61 Crossing The Niobrara River.

This includes the following highways...
 Highway 20 between mile markers 74 and 147.
 Highway 250 between mile markers 23 and 48.
 Highway 61 between mile markers 202 and 231.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4300 10209 4300 10152 4270 10135 4236 10239
      4234 10275 4244 10275 4244 10277 4278 10277
TIME...MOT...LOC 0201Z 298DEG 27KT 4296 10161 4258 10259 

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

CDC

239 
WWUS53 KLBF 170222
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
822 PM MDT Fri Jul 16 2021

NEC031-161-170245-
/O.CON.KLBF.SV.W.0100.000000T0000Z-210717T0245Z/
Cherry NE-Sheridan NE-
822 PM MDT Fri Jul 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM MDT
FOR NORTHWESTERN CHERRY AND CENTRAL SHERIDAN COUNTIES...

At 820 PM MDT, severe thunderstorms were located along a line
extending from 11 miles east of Merriman to 17 miles southeast of
Rushville, moving southeast at 35 mph.

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

SOURCE...Public.

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

Locations impacted include...
Gordon, Rushville, Hay Springs, Merriman, Medicine Lake, Clinton, 
Lone Butte, Irwin, Smith Lake, Walgren Lake, Shell Lake, Rock Hill 
and Bayonne. 

This includes the following highways...
 Highway 20 between mile markers 74 and 147.
 Highway 250 between mile markers 23 and 48.
 Highway 61 between mile markers 202 and 231.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4300 10186 4300 10152 4270 10135 4236 10239
      4234 10275 4244 10275 4244 10277 4275 10277
TIME...MOT...LOC 0220Z 295DEG 31KT 4291 10148 4250 10226 

HAIL...0.88IN
WIND...60MPH
 
$$

CDC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 6:46 PM MDT	Severe Thunderstorm Warning	LBF	Cherry, Sheridan	59 min
Jul 16, 7:13 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	32 min
Jul 16, 8:29 PM MDT	Special Weather Statement	LBF	Cherry	46 min
Jul 16, 8:44 PM MDT	Special Weather Statement	LBF	Sheridan	31 min
Jul 16, 9:13 PM MDT	Special Weather Statement	LBF	Cherry	62 min
Jul 16, 9:15 PM MDT	Special Weather Statement	LBF	Arthur, Grant, Hooker	60 min
Jul 16, 9:42 PM MDT	Special Weather Statement	LBF	Sheridan	33 min
Jul 16, 10:11 PM MDT	Special Weather Statement	LBF	Blaine, Brown, Logan, Thomas	64 min
Jul 16, 10:14 PM MDT	Special Weather Statement	LBF	Arthur, Keith, McPherson	61 min
Jul 16, 10:15 PM MDT	Special Weather Statement	LBF	Sheridan	60 min
Jul 16, 10:26 PM MDT	Special Weather Statement	LBF	Grant	49 min
Jul 16, 11:10 PM MDT	Special Weather Statement	LBF	Arthur	65 min
Jul 16, 11:12 PM MDT	Special Weather Statement	LBF	Blaine	63 min
Jul 16, 11:31 PM MDT	Special Weather Statement	LBF	Lincoln	44 min
Jul 17, 12:07 AM MDT	Special Weather Statement	LBF	Custer, Loup	38 min
Jul 17, 12:12 AM MDT	Special Weather Statement	LBF	Lincoln	63 min
Jul 17, 12:15 AM MDT	Special Weather Statement	LBF	Arthur	45 min
Jul 17, 1:11 AM MDT	Special Weather Statement	LBF	Frontier	64 min
Jul 17, 1:13 AM MDT	Special Weather Statement	LBF	Garfield, Wheeler	62 min
Jul 17, 1:55 AM MDT	Areal Flood Advisory	LBF	Frontier	58 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.