Alert archive / Nebraska / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 101, NWS North Platte, NE

July 2, 2017Sheridan County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 2, 2017, 7:45 PM MDT for Sheridan County, Nebraska. It was in force for 45 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: Jul 2, 2017, 7:45 PM MDT (01:45 UTC)
Expired: Jul 2, 2017, 8:30 PM MDT
In force: 45 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Sheridan County, NE

The radar

The North Platte radar (KLNX), 164 km from the middle of the area, began a volume at 01:46 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jul 2, 4:58 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Rapid City, SD (KRAP), launched 00:00Z, 1.8 hours before the alert went out and 194 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: 321 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 2951 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 138 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

030 
WUUS53 KLBF 030145
SVRLBF
NEC161-030230-
/O.NEW.KLBF.SV.W.0101.170703T0145Z-170703T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
745 PM MDT SUN JUL 2 2017

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Southern Sheridan County in the Panhandle of Nebraska...

* Until 830 PM MDT

* At 745 PM MDT, a severe thunderstorm was located 12 miles northeast
  of Wild Horse Butte, or 19 miles south of Hay Springs, 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. 

* Locations impacted include...
  Diamond Lake, Smith Lake State Wildlife Management Area and Argo
  Hill.

This includes Highway 250 between mile markers 12 and 34.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4228 10273 4252 10273 4252 10210 4214 10220
TIME...MOT...LOC 0145Z 275DEG 14KT 4240 10269 

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

Taylor

2 follow-up statements

421 
WWUS53 KLBF 030201
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
801 PM MDT SUN JUL 2 2017

NEC161-030230-
/O.CON.KLBF.SV.W.0101.000000T0000Z-170703T0230Z/
Sheridan NE-
801 PM MDT SUN JUL 2 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM MDT
FOR SOUTHERN SHERIDAN COUNTY...

At 801 PM MDT, a severe thunderstorm was located 19 miles southeast
of Hay Springs, moving east at 25 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. 

Locations impacted include...
Diamond Lake, Smith Lake State Wildlife Management Area and Argo
Hill.

This includes Highway 250 between mile markers 14 and 33.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4231 10263 4251 10263 4252 10210 4214 10220
TIME...MOT...LOC 0201Z 262DEG 21KT 4243 10253 

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

Taylor

959 
WWUS53 KLBF 030221
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
821 PM MDT SUN JUL 2 2017

NEC161-030231-
/O.EXP.KLBF.SV.W.0101.000000T0000Z-170703T0230Z/
Sheridan NE-
821 PM MDT SUN JUL 2 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN SHERIDAN COUNTY WILL
EXPIRE AT 830 PM MDT...
                
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 will be allowed to expire.  However gusty winds
and heavy rain are still possible with this thunderstorm.

A severe thunderstorm watch remains in effect until 1100 PM MDT for
the Panhandle of Nebraska.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
North Platte.

LAT...LON 4231 10263 4251 10263 4252 10210 4214 10220
TIME...MOT...LOC 0221Z 275DEG 14KT 4242 10244 

$$

Taylor

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 6:20 PM MDT	Special Weather Statement	LBF	Keith	40 min
Jul 2, 6:26 PM MDT	Severe Thunderstorm Warning	LBF	Custer	49 min
Jul 2, 6:30 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Keith, McPherson	45 min
Jul 2, 6:34 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	41 min
Jul 2, 6:50 PM MDT	Areal Flood Advisory	LBF	Lincoln	55 min
Jul 2, 6:58 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln, Perkins	47 min
Jul 2, 7:02 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	58 min
Jul 2, 7:06 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	24 min
Jul 2, 7:22 PM MDT	Severe Thunderstorm Warning	LBF	Frontier	38 min
Jul 2, 7:22 PM MDT	Severe Thunderstorm Warning	LBF	Chase, Hayes, Lincoln, Perkins	38 min
Jul 2, 7:58 PM MDT	Severe Thunderstorm Warning	LBF	Hayes, Lincoln	47 min
Jul 2, 7:59 PM MDT	Severe Thunderstorm Warning	LBF	Frontier	46 min
Jul 2, 8:41 PM MDT	Severe Thunderstorm Warning	LBF	Frontier	49 min
Jul 2, 9:45 PM MDT	Areal Flood Advisory	LBF	Frontier, Lincoln	8 hr
Jul 3, 4:06 PM MDT	Special Weather Statement	LBF	Sheridan	24 min
Jul 3, 4:32 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	28 min
Jul 3, 4:59 PM MDT	Special Weather Statement	LBF	Garden	31 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2017 Every severe thunderstorm warning in 2017

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.