Severe Thunderstorm Warning 22, NWS North Platte, NE

306 
WWUS53 KLBF 160709
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
109 AM MDT TUE MAY 16 2017

NEC031-160719-
/O.EXP.KLBF.SV.W.0022.000000T0000Z-170516T0715Z/
Cherry NE-
109 AM MDT TUE MAY 16 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CHERRY COUNTY
WILL EXPIRE AT 115 AM MDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.

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

LAT...LON 4299 10114 4269 10173 4286 10202 4300 10187
TIME...MOT...LOC 0709Z 219DEG 39KT 4311 10151 

$$

Jacobs

Area Forecast Discussion
National Weather Service North Platte NE
1225 AM CDT Tue May 16 2017

.UPDATE...
Issued at 548 PM CDT Mon May 15 2017

Forecast updated for Sheridan County as Severe Thunderstorm Watch
#215 in effect until midnight MDT.

&&

.SHORT TERM...(This evening through Tuesday)
Issued at 332 PM CDT Mon May 15 2017

The ACCAS on visible satellite across Scntl Neb represents a
weakness in the 700mb cap. The convection the models are generating
across Wrn KS this afternoon and tonight should develop upscale
along this weakness or "front" tonight. The models vary with the
track of the convection...some due north through Ncntl Neb and
others northeast clipping the eastern edge of Ncntl Neb.
The models in general suggest another area of thunderstorms tonight
across Northwest Neb. The location varies with the models.

Severe weather potential tonight is reasonably good. The SPC outlook
today and tonight is marginal for organized severe storm development
but don't be fooled. Lapse rates are steep, moisture plentiful and
winds aloft are strong. Thus, it is believed that any organized area
of thunderstorms which forms, could produce severe weather...large
hail and wind damage.

By Tuesday morning the atmosphere should be capped once again. The
models drive another cold front through Wrn and Ncntl Neb in the
morning. This front should lift north in the afternoon and evening
and be the genesis for additional thunderstorm development mainly
affecting areas along and east of highway 83.

The severe weather potential Tuesday is higher. H700mb temperatures
fall into the mid and upper single digits celsius which is weak.
Increasing moisture and strong upper level dynamics emerging from
the upper level low across the Wrn U.S. should support storm
development along and east of a stationary front forecast to lie
somewhere across Cntl Neb. Severe weather could develop anywhere
along and east of highway 61 with the threat increasing eastward.

The models suggest storm development across the Nern Colo plains and
Scntl Nebraska which should lift north into Wrn/Ncntl Neb late in
the afternoon or evening.

.LONG TERM...(Tuesday night through Monday)
Issued at 332 PM CDT Mon May 15 2017

An initial round of strong or severe thunderstorms should move
through Tuesday night. SPC outlooks nearly all areas for marginal
risk of severe weather. The better instability is in just the
eastern edge of Ncntl Neb.

The first of Two upper level lows moves Tuesday night and Wednesday.
Strong cold air advection takes hold Wednesday with highs in just
the 50s and 60s. H700mb temperatures fall from 5C to near 0C
Wednesday and the operative precipe mode is showers. Isolated
thunderstorms might develop given the -15C to -18C temperatures at
h500mb.

A lull in the rain should develop Wednesday and and Thursday
morning. A second colder upper level lows moves across Thursday and
Friday. H700mb temperatures fall to 0C to -5C. Snow will develop in
eastern WY and perhaps a period of wet snow in Western
Nebraska...not unheard of in May. Rain/showers are expected most
areas Thursday and Friday.

Cold air remains in place next weekend with h700mb temperatures
below 0C. The guidance is trending colder Saturday morning with lows
near freezing across the Wrn Sandhills. Skies could clear out at
night and then cloud back up during the late morning.

&&

.AVIATION...(For the 06Z TAFS through 06Z Tuesday night)
Issued at 1224 AM CDT Tue May 16 2017

For the KLBF terminal: Expect thunderstorms in the vicinity of the
terminal from 06z through 07z overnight tonight. Wind gusts up to
45 KTS and visbys as low as 2sm are expected. Beyond 08z, skies
will gradually clear with an increased threat for thunderstorms
after 00z Wednesday. For the KVTN terminal: Thunderstorms will be
possible at the KVTN terminal from 07z to 10z overnight. Wind
gusts to 40 KTS are possible with visbys as low as 4sm. After 10z,
expect clearing skies will an increased threat for thunderstorms
Tuesday evening.

&&

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

UPDATE...TLK
SHORT TERM...CDC
LONG TERM...CDC
AVIATION...Buttler

Hazardous Weather Outlook
National Weather Service North Platte NE
1258 AM CDT Tue May 16 2017

NEZ004>010-022>029-035>038-056>059-069>071-094-170600-
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-
1258 AM CDT Tue May 16 2017 /1158 PM MDT Mon May 15 2017/

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

.DAY ONE...REST OF TONIGHT.

There is a slight risk for severe thunderstorms east of a line
from Wauneta to Dickens, Broken Bow and Bartlett. Then a marginal
risk elsewhere the rest of tonight. The impacts will be damaging
wind and large hail.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

A frontal boundary will stall over western Nebraska Tuesday and
be the focus for thunderstorms through Wednesday night. The
greatest threat for severe thunderstorms will be east of a line
from Eustis, Broken Bow and O'Neill Tuesday that shifts south and
east on Wednesday. Large hail and damaging winds will be the main
threats.

Wednesday and Wednesday night, thunderstorms are possible across
all of western and north central Nebraska. At this time, the
threat for severe storms is low.

Colder air returns late Friday night into Saturday morning with
the potential for frost in the west.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is possible on Tuesday afternoon and night.

&&

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

Special Weather Statement
National Weather Service North Platte NE
1052 PM CDT MON MAY 15 2017

NEZ059-070-071-160430-
Frontier NE-Hayes NE-Lincoln NE-
1052 PM CDT MON MAY 15 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN FRONTIER...
SOUTHWESTERN LINCOLN AND NORTHEASTERN HAYES COUNTIES UNTIL 1130 PM
CDT...

At 1052 PM CDT, Doppler radar was tracking a strong thunderstorm near
Hayes Center, moving northeast at 30 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Hayes Center, Wellfleet, Dickens, Maywood, Marengo, Hansen Memorial
Reserve State Wildlife Management Area, Hayes Center State Wildlife
Management Area and Somerset.

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 4042 10089 4059 10119 4102 10095 4077 10041
TIME...MOT...LOC 0352Z 215DEG 25KT 4056 10097

Jacobs

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1119 PM CDT MON MAY 15 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1117 PM     HAIL             GRANT                   40.84N 101.73W
05/15/2017  M0.50 INCH       PERKINS            NE   TRAINED SPOTTER

            HAIL LASTED ABOUT THREE TO FOUR MINUTES.

&&

TKECK

Special Weather Statement
National Weather Service North Platte NE
1021 PM MDT MON MAY 15 2017

NEZ057-058-160500-
Perkins NE-Keith NE-
1021 PM MDT MON MAY 15 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN PERKINS...KEITH AND
NORTHWESTERN LINCOLN COUNTIES UNTIL 1100 PM MDT...

At 1020 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles northwest of Grant to near Madrid.
Movement was northeast at 30 mph.

Dime size hail and wind gusts up to 50 mph will be possible with
these storms.

Locations impacted include...
Ogallala, Grant, Paxton, Brule, Madrid, Sarben, Lemoyne, Keystone,
Roscoe, Kingsley Dam, Nevens, Broganville, Otter Creek Campground,
Lake View Campground, Big Bald Hill, Wild Horse Spring and Belmar.

This includes the following highways...
 Highway 61 between mile markers 64 and 109.
 Highway 92 between mile markers 125 and 138.
 Interstate 80 in Nebraska between mile markers 114 and 147.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4087 10197 4138 10195 4138 10127 4121 10127
      4081 10152
TIME...MOT...LOC 0420Z 209DEG 26KT 4090 10190 4086 10163

Jacobs

Special Weather Statement
National Weather Service North Platte NE
1035 PM MDT MON MAY 15 2017

NEZ004-160515-
Sheridan NE-
1035 PM MDT MON MAY 15 2017

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL SHERIDAN COUNTY
UNTIL 1115 PM MDT...

At 1034 PM MDT, Doppler radar was tracking a strong thunderstorm over
Wild Horse Butte, or 10 miles north of Alliance, moving northeast at
35 mph.

Nickel size hail and wind gusts of 50 to 55 mph will be possible with
this storm.

This storm will remain over mainly rural areas of west central
Sheridan County.

This includes Highway 250 between mile markers 22 and 25.

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.

&&

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

LAT...LON 4262 10277 4236 10239 4219 10274 4244 10275
      4244 10277
TIME...MOT...LOC 0434Z 219DEG 29KT 4225 10289

Jacobs

Special Weather Statement
National Weather Service North Platte NE
1137 PM CDT MON MAY 15 2017

NEZ058-059-160530-
Perkins NE-Lincoln NE-
1137 PM CDT MON MAY 15 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN PERKINS...
SOUTHEASTERN KEITH AND CENTRAL LINCOLN COUNTIES UNTIL 1230 AM
CDT/1130 PM MDT/...

At 1136 PM CDT/1036 PM MDT/, Doppler radar was tracking strong
thunderstorms along a line extending from 9 miles northeast of Elsie
to 8 miles southwest of Gothenburg. Movement was northeast at 30 mph.

Dime size hail and wind gusts up to 50 mph will be possible with
these storms.

Locations impacted include...
North Platte, Sutherland, Hershey, Brady, Maxwell, Sutherland
Reservoir State Recreation Area, Lake Maloney State Recreation Area,
North Platte Airport, Keith, Cottonwood Canyon State Wildlife
Management Area, Coker, Jeffrey Canyon State Wildlife Management
Area, O'Fallons, Birdwood and Vroman.

This includes the following highways...
 Highway 97 between mile markers 1 and 2.
 Interstate 80 in Nebraska between mile markers 151 and 207.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4093 10143 4101 10137 4101 10125 4113 10127
      4125 10117 4118 10023 4091 10023 4083 10027
TIME...MOT...LOC 0436Z 232DEG 25KT 4096 10128 4088 10031

Jacobs

Special Weather Statement
National Weather Service North Platte NE
1128 PM MDT MON MAY 15 2017

NEZ004-160615-
Sheridan NE-
1128 PM MDT MON MAY 15 2017

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL SHERIDAN COUNTY UNTIL
1215 AM MDT...

At 1127 PM MDT, Doppler radar was tracking a strong thunderstorm 17
miles south of Rushville, moving northeast at 25 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Rushville, Clinton, Lone Butte, Highway 27 crossing the Niobrara
River, Smith Lake State Wildlife Management Area, Highway 250
crossing the Niobrara River and Intersection of Highway 27 and Mills
Road.

This includes the following highways...
 Highway 20 between mile markers 88 and 102.
 Highway 250 between mile markers 18 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

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 4254 10270 4287 10236 4265 10207 4249 10207
      4227 10241
TIME...MOT...LOC 0527Z 231DEG 23KT 4246 10248

Jacobs