Alert archive / Nebraska / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 39, NWS North Platte, NE

May 10, 20184 counties in Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 10, 2018, 7:16 PM MDT for 4 counties in Nebraska. It was in force for 44 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: May 10, 2018, 7:16 PM MDT (01:16 UTC)
Expired: May 10, 2018, 8:00 PM MDT
In force: 44 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Hooker County, NE, Logan County, NE, McPherson County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 42 km from the middle of the area, began a volume at 01:18 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
May 10, 7:22 PM MDT	TSTM WND GST 70	2 S Mullen, NE
May 10, 7:24 PM MDT	TSTM WND GST 70	8 S Mullen, NE

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
Feb 1, 7:32 PM MST	Severe Thunderstorm Watch	SPC	135 days
May 10, 6:59 PM MDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.3 hours before the alert went out and 78 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: 1050 J/kg
Mixed-layer CIN: -108 J/kg
Mixed-layer LCL: 1982 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 446 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.2

Open this sounding in Storm Lab

The text

As transmitted.

646 
WUUS53 KLBF 110116
SVRLBF
NEC091-113-117-171-110200-
/O.NEW.KLBF.SV.W.0039.180511T0116Z-180511T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
816 PM CDT THU MAY 10 2018

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Hooker County in west central Nebraska...
  Northwestern Logan County in west central Nebraska...
  McPherson County in west central Nebraska...
  Southwestern Thomas County in north central Nebraska...

* Until 900 PM CDT/800 PM MDT/

* At 816 PM CDT/716 PM MDT/, severe thunderstorms were located along
  a line extending from 10 miles southwest of Mullen to 22 miles
  southeast of Whitman to 20 miles northeast of Arthur, moving
  southeast at 50 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Tryon, Ringgold, Sand Beach Lake, Highway 97 crossing the Dismal
  River, Big Lamunyon Flats, Hecla, East Cody Lake and Shimmons Lake.

This includes the following highways...
 Highway 2 between mile markers 171 and 179.
 Highway 92 between mile markers 191 and 223.
 Highway 97 between mile markers 18 and 65.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4192 10058 4149 10055 4140 10089 4166 10141
      4171 10141 4188 10126 4209 10133
TIME...MOT...LOC 0116Z 310DEG 45KT 4198 10124 4184 10120 4169 10133 

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

JWS

2 follow-up statements

460 
WWUS53 KLBF 110127
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
827 PM CDT THU MAY 10 2018

NEC091-113-117-171-110200-
/O.CON.KLBF.SV.W.0039.000000T0000Z-180511T0200Z/
Hooker NE-Logan NE-McPherson NE-Thomas NE-
827 PM CDT THU MAY 10 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM
CDT/800 PM MDT/ FOR HOOKER...NORTHWESTERN LOGAN...MCPHERSON AND
SOUTHWESTERN THOMAS COUNTIES...

At 827 PM CDT/727 PM MDT/, severe thunderstorms were located along a
line extending from 7 miles south of Mullen to 19 miles southwest of
Seneca to 12 miles northwest of Tryon, moving southeast at 55 mph.

HAZARD...70 mph wind gusts. 

SOURCE...Public. 

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings. 

Locations impacted include...
Tryon, Ringgold, Sand Beach Lake, Highway 97 crossing the Dismal
River, Big Lamunyon Flats, Hecla, East Cody Lake and Shimmons Lake.

This includes the following highways...
 Highway 2 between mile markers 171 and 179.
 Highway 92 between mile markers 191 and 223.
 Highway 97 between mile markers 18 and 65.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a DANGEROUS SITUATION. These storms are producing widespread 
wind damage across the central Sandhills. SEEK SHELTER NOW inside a 
sturdy structure and stay away from windows.
 
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4192 10058 4149 10055 4140 10089 4166 10141
      4171 10141 4188 10126 4209 10133
TIME...MOT...LOC 0127Z 297DEG 47KT 4194 10107 4180 10103 4165 10116 

HAIL...<.75IN
WIND...70MPH
 
$$

JWS

486 
WWUS53 KLBF 110135
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
835 PM CDT THU MAY 10 2018

NEC091-113-117-171-110200-
/O.CON.KLBF.SV.W.0039.000000T0000Z-180511T0200Z/
Hooker NE-Logan NE-McPherson NE-Thomas NE-
835 PM CDT THU MAY 10 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM
CDT/800 PM MDT/ FOR HOOKER...NORTHWESTERN LOGAN...MCPHERSON AND
SOUTHWESTERN THOMAS COUNTIES...

At 834 PM CDT/734 PM MDT/, severe thunderstorms were located along a
line extending from 7 miles south of Seneca to 17 miles southwest of
Thedford to 6 miles north of Tryon, moving east at 60 mph.

HAZARD...70 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings. 

Locations impacted include...
Tryon, Ringgold, Sand Beach Lake, Highway 97 crossing the Dismal
River, Big Lamunyon Flats, Hecla, East Cody Lake and Shimmons Lake.

This includes the following highways...
 Highway 2 between mile markers 171 and 179.
 Highway 92 between mile markers 191 and 223.
 Highway 97 between mile markers 18 and 65.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a DANGEROUS SITUATION. These storms are producing widespread 
wind damage across the central Sandhills. SEEK SHELTER NOW inside a 
sturdy structure and stay away from windows.
 
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4192 10058 4149 10055 4140 10089 4166 10141
      4171 10141 4188 10126 4209 10133
TIME...MOT...LOC 0134Z 288DEG 51KT 4195 10087 4181 10083 4166 10096 

HAIL...<.75IN
WIND...70MPH
 
$$

JWS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 6:00 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Perkins	45 min
May 10, 6:09 PM MDT	Severe Thunderstorm Warning	LBF	Garden	51 min
May 10, 6:11 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	28 min
May 10, 6:27 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Garden, Grant	48 min
May 10, 6:42 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Perkins	48 min
May 10, 6:50 PM MDT	Areal Flood Advisory	LBF	Keith, Perkins	3 hr
May 10, 6:58 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Garden, Keith	47 min
May 10, 7:05 PM MDT	Severe Thunderstorm Warning	LBF	Chase, Perkins	40 min
May 10, 7:29 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln, Perkins	46 min
May 10, 7:42 PM MDT	Severe Thunderstorm Warning	LBF	Perkins	48 min
May 10, 7:47 PM MDT	Severe Thunderstorm Warning	LBF	Cherry, Logan, McPherson, Thomas	43 min
May 10, 8:12 PM MDT	Special Weather Statement	LBF	Lincoln	48 min
May 10, 8:25 PM MDT	Areal Flood Advisory	LBF	Perkins	3 hr
May 10, 8:28 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln, Perkins	47 min
May 10, 8:37 PM MDT	Special Weather Statement	LBF	Lincoln	53 min
May 10, 8:41 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	49 min
May 10, 8:57 PM MDT	Special Weather Statement	LBF	Custer	48 min
May 10, 9:05 PM MDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Lincoln	55 min
May 10, 9:09 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	51 min
May 10, 9:13 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln, Perkins	62 min
May 10, 9:20 PM MDT	Areal Flood Advisory	LBF	Lincoln, Perkins	3 hr
May 10, 9:44 PM MDT	Areal Flood Advisory	LBF	Keith	3 hr
May 10, 9:58 PM MDT	Severe Thunderstorm Warning	LBF	Custer	62 min
May 10, 10:01 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	29 min
May 10, 10:25 PM MDT	Severe Thunderstorm Warning	LBF	Frontier, Lincoln	50 min
May 10, 10:30 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Perkins	45 min
May 10, 10:59 PM MDT	Severe Thunderstorm Warning	LBF	Custer	31 min
May 10, 11:12 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln	48 min
May 10, 11:41 PM MDT	Severe Thunderstorm Warning	LBF	Frontier, Lincoln	49 min
May 10, 11:53 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln	52 min
May 11, 12:44 AM MDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln	46 min
May 11, 1:27 AM MDT	Severe Thunderstorm Warning	LBF	Lincoln, Logan, McPherson	48 min
May 11, 2:12 AM MDT	Severe Thunderstorm Warning	LBF	Lincoln, Logan	63 min
May 11, 3:05 AM MDT	Special Weather Statement	LBF	Hooker	55 min
May 11, 3:36 AM MDT	Special Weather Statement	LBF	Grant	39 min
May 11, 3:58 AM MDT	Special Weather Statement	LBF	Hooker	47 min
May 11, 4:14 AM MDT	Special Weather Statement	LBF	Grant	46 min
May 11, 4:18 AM MDT	Special Weather Statement	LBF	Thomas	27 min
May 11, 4:50 AM MDT	Special Weather Statement	LBF	Thomas	40 min
May 11, 4:56 AM MDT	Special Weather Statement	LBF	Cherry	49 min
May 11, 5:53 AM MDT	Special Weather Statement	LBF	Brown	52 min
May 11, 6:55 AM MDT	Special Weather Statement	LBF	Thomas	50 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2018 Every severe thunderstorm warning in 2018

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.