Alert archive / Nebraska / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 139, NWS North Platte, NE

June 10, 2018Sheridan County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 10, 2018, 7:42 PM MDT for Sheridan County, Nebraska. It was in force for 48 min. 1 report 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: Jun 10, 2018, 7:42 PM MDT (01:42 UTC)
Expired: Jun 10, 2018, 8:30 PM MDT
In force: 48 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 Rapid City radar (KUDX), 147 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.

What was reported inside it

Time	Report	Where	Remark
Jun 10, 8:00 PM MDT	HAIL 1.5	2 N Clinton, NE

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 18 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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

The nearest sounding before it

Rapid City, SD (KRAP), launched 00:00Z, 1.7 hours before the alert went out and 143 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: 3540 J/kg
Mixed-layer CIN: -79 J/kg
Mixed-layer LCL: 1757 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 143 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 7.6

Open this sounding in Storm Lab

The text

As transmitted.

259 
WUUS53 KLBF 110142
SVRLBF
NEC161-110230-
/O.NEW.KLBF.SV.W.0139.180611T0142Z-180611T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
742 PM MDT SUN JUN 10 2018

The National Weather Service in North Platte has issued a

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

* Until 830 PM MDT.

* At 742 PM MDT, severe thunderstorms were located along a line
  extending from Pine Ridge to Rushville, moving northeast at 30 mph.

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

  SOURCE...Trained weather spotters.

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

* Locations impacted include...
  Gordon, Rushville, White Clay, Clinton, Pine Ridge, Hoover Lake,
  Intersection of Highway 87 and Craven Creek Road, Lone Butte,
  Intersection of Highway 87 and Larabee Road, Mount Maria and
  Intersection of Highway 27 and Mills Road.

This includes the following highways...
 Highway 20 between mile markers 85 and 111.
 Highway 250 between mile markers 42 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4300 10210 4268 10209 4260 10256 4300 10269
TIME...MOT...LOC 0142Z 238DEG 24KT 4302 10253 4270 10246 

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

Snively

3 follow-up statements

435 
WWUS53 KLBF 110202
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
802 PM MDT SUN JUN 10 2018

NEC161-110230-
/O.CON.KLBF.SV.W.0139.000000T0000Z-180611T0230Z/
Sheridan NE-
802 PM MDT SUN JUN 10 2018

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

At 801 PM MDT, a severe thunderstorm was located 7 miles west of
Gordon, moving east at 25 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Gordon, Rushville, White Clay, Clinton, Pine Ridge, Hoover Lake,
Intersection of Highway 87 and Craven Creek Road, Lone Butte,
Intersection of Highway 87 and Larabee Road, Mount Maria and
Intersection of Highway 27 and Mills Road.

This includes the following highways...
 Highway 20 between mile markers 86 and 111.
 Highway 250 between mile markers 42 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4300 10210 4268 10209 4260 10256 4300 10257
TIME...MOT...LOC 0201Z 252DEG 20KT 4280 10234 

HAIL...1.50IN
WIND...60MPH
 
$$

Snively

148 
WWUS53 KLBF 110218
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
818 PM MDT SUN JUN 10 2018

NEC161-110230-
/O.CON.KLBF.SV.W.0139.000000T0000Z-180611T0230Z/
Sheridan NE-
818 PM MDT SUN JUN 10 2018

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

At 818 PM MDT, a severe thunderstorm was located near Gordon, moving
east at 20 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...
Gordon, Clinton, Lone Butte, Hoover Lake and Intersection of Highway
27 and Mills Road.

This includes Highway 20 between mile markers 93 and 111.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4300 10210 4268 10209 4262 10245 4300 10241
TIME...MOT...LOC 0218Z 250DEG 16KT 4280 10226 

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

Snively

686 
WWUS53 KLBF 110228
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
828 PM MDT SUN JUN 10 2018

NEC161-110237-
/O.EXP.KLBF.SV.W.0139.000000T0000Z-180611T0230Z/
Sheridan NE-
828 PM MDT SUN JUN 10 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN 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 small hail
and gusty winds are still expected with this thunderstorm.

LAT...LON 4300 10210 4268 10209 4262 10245 4300 10241
TIME...MOT...LOC 0227Z 238DEG 24KT 4283 10219 

$$

Snively

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS North Platte, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 10, 5:27 PM MDT, 2 hours 15 minutes earlier.

Area forecast discussion, Jun 10, 5:27 PM MDT, 2 hours 15 minutes before

Area Forecast Discussion
National Weather Service North Platte NE
627 PM CDT Sun Jun 10 2018

.SHORT TERM...(This evening through Monday)
Issued at 303 PM CDT Sun Jun 10 2018

An upper trough will advance into the Dakotas and western
Nebraska tonight. This will drive a cold front into the northwest
Sandhills late evening, and through all except the far eastern
zones overnight. Breezy nw winds across the west after midnight.
Isolated showers and thunderstorms remain forecast across the
northwest Sandhills and parts of northern Nebraska overnight.
Forecast soundings suggest too much dry air in the low/mid levels
across southwest and central Nebraska in addition to a strong cap
as 700 mb temps approach 16C. In the northwest, steeper lapse
rates to support a few isolated storms possible. Deep layer shear
remains weak at less than 25 kts. Any strong storms should remain
just north into South Dakota. Lows from the mid 50s Sheridan
county, to near 65 in the east.

On Monday, an isolated shower or thunderstorm may linger across
Boyd county. Otherwise, much drier air and windy nw winds during
the morning into mid afternoon. With lower 850 mb temps from
15-20C, afternoon highs near normal mainly from the upper 70s to
near 80.

.LONG TERM...(Monday night through Sunday)
Issued at 303 PM CDT Sun Jun 10 2018

On Tuesday, modest moisture returns to the area. Fast zonal flow
aloft. Highs reaching the lower 80s. While the best chances for
organized storms will be be across Kansas, a slight chance for
showers and storms across the south.

Thunderstorm chances remain in the forecast Wednesday into
Wednesday evening, as a weak disturbance cross the region.

Mainly dry Thursday into Friday as an upper ridge builds into the
region an a deep upper trough digs from the Pacific NW into the
Great Basin. Monsoonal moisture will be drawn into the Four
Corners Region where showers and storms will focus. A front is
forecast to setup across Nebraska with increasing chances for
showers and storms Friday night through Sunday.

Temperatures warm into the low 90s Thursday and Friday, to the
mid and upper 80s Saturday, and upper 70s to lower 80s Sunday as
the front slowly sags southward.

&&

.AVIATION...(For the 00Z TAFS through 00Z Monday evening)
Issued at 627 PM CDT Sun Jun 10 2018

Thunderstorms have developed across northwest Nebraska, currently
impacting KGRN. Expect this activity to slowly work northeast this
evening and overnight. While not expected, we cannot discount a
stray storm impacting KVTN, otherwise the activity should remain
north of the Sandhills. Otherwise llws will be expected once again
overnight, but impacting both KVTN and KLBF. A strong cold front
will cause a distinct wind shift overnight, breezy northwest winds
will impact all sites tomorrow. Overall confidence is strong due
to good model agreement.

&&

.LBF WATCHES/WARNINGS/ADVISORIES...
None.
&&

SHORT TERM...Roberg
LONG TERM...Roberg
AVIATION...Jacobs

Hazardous weather outlook, Jun 10, 2:37 PM MDT, 5 hours 5 minutes before

Hazardous Weather Outlook
National Weather Service North Platte NE
337 PM CDT Sun Jun 10 2018

NEZ004>010-022>029-035>038-056>059-069>071-094-112045-
Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-
Grant-Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-
Logan-Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier-
Western Cherry-
337 PM CDT Sun Jun 10 2018 /237 PM MDT Sun Jun 10 2018/

This Hazardous Weather Outlook is for portions of western and
north central Nebraska.

.DAY ONE...TONIGHT.

Isolated thunderstorms will affect portions of the northern
Sandhills this evening and tonight, primarily north of Highway 2.
A few of the storms may be capable of producing hail and strong
winds.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

Thunderstorms are possible Tuesday and Wednesday nights as well
as Friday. Stay tuned to later forecasts regarding severe
potential.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

&&

Get your weather, hydrological, and climate information at
http://www.weather.gov/northplatte

kulik

In the hours before

Special weather statement, Jun 10, 4:59 PM MDT, 2 hours 43 minutes before

Special Weather Statement
National Weather Service North Platte NE
459 PM MDT SUN JUN 10 2018

NEZ004-094-102345-
Sheridan NE-Western Cherry NE-
459 PM MDT SUN JUN 10 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CHERRY AND
NORTHEASTERN SHERIDAN COUNTIES UNTIL 545 PM MDT...

At 459 PM MDT, Doppler radar was tracking a strong thunderstorm over
Rushville, moving northeast at 20 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Gordon, Rushville, Clinton, Lone Butte and Hoover Lake.

This includes the following highways...
 Highway 20 between mile markers 91 and 111.
 Highway 250 between mile markers 47 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4282 10205 4263 10241 4278 10253 4300 10236
      4300 10206
TIME...MOT...LOC 2259Z 237DEG 17KT 4273 10242

Jacobs

Special weather statement, Jun 10, 7:12 PM MDT, 30 minutes before

Special Weather Statement
National Weather Service North Platte NE
712 PM MDT SUN JUN 10 2018

NEZ004-110130-
Sheridan NE-
712 PM MDT SUN JUN 10 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN SHERIDAN COUNTY
UNTIL 730 PM MDT...

At 711 PM MDT, Doppler radar was tracking a strong thunderstorm 9
miles southwest of White Clay, or 11 miles southwest of Pine Ridge,
moving north at 35 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
White Clay, Pine Ridge, Intersection of Highway 87 and Craven Creek
Road, Intersection of Highway 87 and Larabee Road and Metcalf State
Wildlife Management Area.

LAT...LON 4300 10248 4279 10262 4279 10279 4300 10279
TIME...MOT...LOC 0111Z 201DEG 30KT 4290 10271

Snively

Special weather statement, Jun 10, 7:31 PM MDT, 11 minutes before

Special Weather Statement
National Weather Service North Platte NE
731 PM MDT SUN JUN 10 2018

NEZ004-110215-
Sheridan NE-
731 PM MDT SUN JUN 10 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN SHERIDAN COUNTY
UNTIL 815 PM MDT...

At 730 PM MDT, Doppler radar was tracking strong thunderstorms over
northwest Sheridan County, with one storm near White Clay, and one
storm near Rushville, moving northeast at 35 mph.

Dime size hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...
Rushville, White Clay, Clinton, Pine Ridge, Intersection of Highway
87 and Craven Creek Road, Metcalf State Wildlife Management Area,
Intersection of Highway 87 and Larabee Road and Mount Maria.

This includes the following highways...
 Highway 20 between mile markers 83 and 103.
 Highway 250 between mile markers 43 and 48.

LAT...LON 4300 10212 4269 10233 4259 10256 4300 10279
TIME...MOT...LOC 0130Z 221DEG 29KT 4295 10260

Snively

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 7:12 PM MDT	Special Weather Statement	LBF	Dawes	18 min
Jun 10, 7:31 PM MDT	Special Weather Statement	LBF	Sheridan	44 min
Jun 10, 8:30 PM MDT	Special Weather Statement	LBF	Sheridan	45 min
Jun 10, 11:02 PM MDT	Special Weather Statement	LBF	Sheridan	43 min
Jun 11, 12:07 AM MDT	Special Weather Statement	LBF	Sheridan	38 min
Jun 11, 12:48 AM MDT	Special Weather Statement	LBF	Cherry	42 min
Jun 11, 1:48 AM MDT	Special Weather Statement	LBF	Keya Paha	42 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.