Severe Thunderstorm Warning 277, NWS North Platte, NE

988 
WWUS53 KLBF 010123
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
723 PM MDT FRI AUG 31 2018

NEC005-101-010145-
/O.CON.KLBF.SV.W.0277.000000T0000Z-180901T0145Z/
Arthur NE-Keith NE-
723 PM MDT FRI AUG 31 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM MDT
FOR SOUTHEASTERN ARTHUR AND NORTHEASTERN KEITH COUNTIES...

At 723 PM MDT, a severe thunderstorm was located 8 miles north of
Keystone, or 16 miles northeast of Ogallala, 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...
Keystone, Kingsley Dam, Big Bald Hill, Broganville and Bucktail Lake.

This includes Highway 61 between mile markers 94 and 99.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4152 10142 4147 10140 4140 10140 4139 10137
      4120 10129 4118 10168 4142 10170
TIME...MOT...LOC 0123Z 248DEG 19KT 4134 10157 

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

CDC/BJT

246 
WWUS53 KLBF 010141
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
741 PM MDT FRI AUG 31 2018

NEC005-101-010151-
/O.EXP.KLBF.SV.W.0277.000000T0000Z-180901T0145Z/
Arthur NE-Keith NE-
741 PM MDT FRI AUG 31 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ARTHUR AND
NORTHEASTERN KEITH COUNTIES WILL EXPIRE AT 745 PM MDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 4152 10142 4147 10140 4140 10140 4139 10137
      4120 10129 4118 10168 4142 10170
TIME...MOT...LOC 0141Z 248DEG 19KT 4138 10145 

$$

CDC/BJT

Area Forecast Discussion
National Weather Service North Platte NE
628 PM CDT Fri Aug 31 2018

.SYNOPSIS...
Issued at 316 PM CDT Fri Aug 31 2018

The H5 pattern across the CONUS this morning had an
elongated area of high pressure which extended from North Carolina,
west into the Texas Panhandle and off the coast of Baja California.
North of this feature, broad west southwesterly flow extended from
northern California, east northeast to New England. A couple of
decent shortwave troughs were noted within this flow. The first
across the Pacific NW and a second over southern Saskatchewan.
Within the broad west southwesterly flow aloft, shortwaves were
noted over eastern Nebraska, southern Utah and central California.
At the surface, low pressure was located over central South Dakota.
A cold front had pushed into northwestern Nebraska and the west
central Panhandle of Nebraska this afternoon. south of the front,
temperatures had surged into the 90s while readings were in the
middle 70s in the northeastern Nebraska Panhandle.

&&

.SHORT TERM...(This evening through Saturday)
Issued at 316 PM CDT Fri Aug 31 2018

Tonight and Saturday...Precipitation chances will be
the main forecast concern over the next 24 hours. The northern
stream shortwave trough over southern Saskatchewan, will migrate east
into Manitoba this evening forcing the cold front through the
remainder of western and southwestern Nebraska by mid evening. At
the same time, the southern Utah shortwave (mentioned above) will
emerge onto the eastern plains of Colorado and swrn Nebraska by mid
evening. Thunderstorms should initiate INVOF the front in swrn
Nebraska early this evening, then migrate east northeast into
central and northeastern Nebraska overnight. Decent model agreement
was noted between the GFS and NAM12 solutions with their 12z
forecast runs as to the timing and position of storms tonight. The
HREF ensembles develop convection in swrn Nebraska early on with a
secondary batch across portions of central Nebraska by late evening.
That being said, will focus the highest pops tonight from
southwestern into eastern portions of the forecast area. For
Saturday, western and north central Nebraska will lie in a post
frontal environment with easterly, then southeasterly winds
developing by afternoon. Mainly dry conditions are expected,
however, skies will be partly to mostly cloudy, especially in
southwestern Nebraska. Highs will range from around 80 in the
southwest to the lower 80s elsewhere.

.LONG TERM...(Saturday night through Friday)
Issued at 316 PM CDT Fri Aug 31 2018

The shortwave trough, currently over the Pacific NW, will drop
south into the SWRN CONUS Saturday night into Sunday. A lead
disturbance will ride northeast into the central plains Saturday
night into Sunday. Showers and thunderstorms will develop INVOF
the front in northeastern Colorado and Swrn Nebraska late Saturday
night, riding northeast into central and northeastern Nebraska.
Though the severe threat will be minimal, some heavy rain will be
possible given forecast PWATS of better than 1.5 inches. Beyond
Sunday, high pressure will build into the east central and sern
CONUS. This will allow the swrn CONUS trough to remain in place
well into next week. The resultant weather pattern will be
highlighted by wetter and warmer than normal conditions across the
forecast area through next week.

&&

.AVIATION...(For the 00Z TAFS through 00Z Saturday evening)
Issued at 627 PM CDT Fri Aug 31 2018

VFR conditions are expected throughout the forecast period, however,
brief MVFR or IFR conditions will be possible with scattered showers
and thunderstorms around the area during the evening and early
overnight hours. Mid to high level cloud cover is expected to
continue through 14z Saturday with improving conditions in northern
Nebraska after 15z. Central Nebraska will remain under cloud
cover through 00z on Saturday with increasing chances of showers
and thunderstorms after 21z.

&&

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

SYNOPSIS...Buttler
SHORT TERM...Buttler
LONG TERM...Buttler
AVIATION...CDC/Thorne

Hazardous Weather Outlook
National Weather Service North Platte NE
320 PM CDT Fri Aug 31 2018

NEZ004>010-022>029-035>038-056>059-069>071-094-012030-
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-
320 PM CDT Fri Aug 31 2018 /220 PM MDT Fri Aug 31 2018/

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

.DAY ONE...TONIGHT.

A marginal risk of severe weather is possible east of a line from
Imperial to Springview this evening. Large hail and damaging winds
will be the primary threats.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

A marginal risk for severe thunderstorms is possible south of a
line from Imperial to Brady on Saturday evening. Large hail,
damaging winds, and heavy rain will be possible.

The threat for thunderstorms will continue Sunday through Tuesday
night across north central Nebraska. At this time, the threat for
severe storms is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

&&

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

kulik

Special Weather Statement
National Weather Service North Platte NE
648 PM CDT FRI AUG 31 2018

NEZ038-010015-
Custer NE-
648 PM CDT FRI AUG 31 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN CUSTER COUNTY UNTIL
715 PM CDT...

At 648 PM CDT, Doppler radar was tracking a strong thunderstorm near
Victoria Springs State Recreation Area, or 13 miles northwest of
Broken Bow, moving east at 25 mph.

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

Locations impacted include...
Merna, Victoria Springs State Recreation Area, Weissert, Lillian,
Round Valley and Walworth.

This includes the following highways...
 Highway 2 between mile markers 260 and 270.
 Highway 92 between mile markers 268 and 273.

LAT...LON 4148 9987 4160 9987 4169 9944 4142 9943
TIME...MOT...LOC 2348Z 268DEG 21KT 4156 9980

CDC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
703 PM CDT FRI AUG 31 2018

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

0649 PM     HAIL             7 ENE STAPLETON         41.52N 100.39W
08/31/2018  E1.75 INCH       LOGAN              NE   PUBLIC

&&

BLANCHETTE

Special Weather Statement
National Weather Service North Platte NE
718 PM CDT FRI AUG 31 2018

NEZ038-010045-
Custer NE-
718 PM CDT FRI AUG 31 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN CUSTER COUNTY UNTIL 745
PM CDT...

At 717 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles northwest of Weissert to 6 miles
northeast of Arnold. Movement was east at 20 mph.

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

Locations impacted include...
Merna, Lillian, Round Valley, Pleasant Hill and Wescott.

This includes the following highways...
 Highway 183 between mile markers 105 and 113.
 Highway 2 between mile markers 264 and 273.
 Highway 92 between mile markers 253 and 273.

LAT...LON 4153 9923 4137 10002 4148 10020 4164 9939
TIME...MOT...LOC 0017Z 269DEG 23KT 4157 9957 4146 10008

CDC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
725 PM CDT FRI AUG 31 2018

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

0701 PM     HAIL             5 SW LEWELLEN           41.28N 102.21W
08/31/2018  E1.00 INCH       GARDEN             NE   PUBLIC

&&

THORNE

Special Weather Statement
National Weather Service North Platte NE
739 PM CDT FRI AUG 31 2018

NEZ037-038-059-010130-
Custer NE-Lincoln NE-Logan NE-
739 PM CDT FRI AUG 31 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN LINCOLN...
SOUTHEASTERN LOGAN AND WEST CENTRAL CUSTER COUNTIES UNTIL 830 PM
CDT...

At 739 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Merna to 6 miles east of Gandy. Movement was
east at 20 mph.

Half inch hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...
Broken Bow, Arnold, Merna, Logan, Tarboz Lake, Pleasant Hill,
Hoagland, Milldale and Finchville.

This includes the following highways...
 Highway 2 between mile markers 265 and 278.
 Highway 92 between mile markers 238 and 273.

LAT...LON 4137 9962 4132 10040 4152 10044 4154 9975
TIME...MOT...LOC 0039Z 275DEG 19KT 4148 9979 4143 10034

CDC

Special Weather Statement
National Weather Service North Platte NE
645 PM MDT FRI AUG 31 2018

NEZ022-035-056-057-010130-
Deuel NE-Arthur NE-Garden NE-Keith NE-
645 PM MDT FRI AUG 31 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN ARTHUR...WESTERN
KEITH...SOUTHEASTERN GARDEN AND NORTHEASTERN DEUEL COUNTIES UNTIL 730
PM MDT...

At 645 PM MDT, Doppler radar was tracking a strong thunderstorm 7
miles west of Lemoyne, or 16 miles northwest of Ogallala, moving
northeast at 20 mph.

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

Locations impacted include...
Ogallala, Big Springs, Brule, Lewellen, Lemoyne, Keystone, Kingsley
Dam, Eagle Gulch Campground, Ruthon, Haythorn Lake, Clear Creek State
Wildlife Management Area, Megeath, McKeag, Otter Creek Campground,
Lake View Campground, Ash Hollow State Historical Park, Belmar and
Windlass Hill.

This includes the following highways...
 Highway 61 between mile markers 89 and 118.
 Highway 92 between mile markers 115 and 138.
 Interstate 80 in Nebraska between mile markers 108 and 119.

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 4102 10204 4120 10217 4144 10215 4158 10177
      4120 10153
TIME...MOT...LOC 0045Z 242DEG 17KT 4130 10194

CDC/BJT