Severe Thunderstorm Warning 211, NWS North Platte, NE

962 
WWUS53 KLBF 131723
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
1123 AM MDT Tue Aug 13 2019

NEC069-131745-
/O.CON.KLBF.SV.W.0211.000000T0000Z-190813T1745Z/
Garden NE-
1123 AM MDT Tue Aug 13 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 AM MDT
FOR EAST CENTRAL GARDEN COUNTY...

At 1123 AM MDT, a severe thunderstorm was located 11 miles northeast
of Oshkosh, moving southeast at 20 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Adams Flats, Rackett, Dogtown Flats and Bourquim Hill. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4174 10235 4166 10199 4142 10198 4139 10200
      4139 10201 4159 10246
TIME...MOT...LOC 1723Z 315DEG 17KT 4155 10225 

HAIL...1.25IN
WIND...60MPH
 
$$

Taylor

473 
WWUS53 KLBF 131731
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
1131 AM MDT Tue Aug 13 2019

NEC069-131745-
/O.CON.KLBF.SV.W.0211.000000T0000Z-190813T1745Z/
Garden NE-
1131 AM MDT Tue Aug 13 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 AM MDT
FOR EAST CENTRAL GARDEN COUNTY...

At 1130 AM MDT, a severe thunderstorm was located 11 miles northeast
of Oshkosh, moving east at 15 mph.

HAZARD...Two inch 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...
Adams Flats, Rackett, Dogtown Flats and Bourquim Hill. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4174 10235 4166 10199 4142 10198 4139 10200
      4139 10201 4159 10246
TIME...MOT...LOC 1730Z 289DEG 15KT 4154 10221 

HAIL...2.00IN
WIND...60MPH
 
$$

Taylor

Area Forecast Discussion
National Weather Service North Platte NE
610 AM CDT Tue Aug 13 2019

.SHORT TERM...(Today through Wednesday)
Issued at 402 AM CDT Tue Aug 13 2019

Concerns in the near-term revolve around thunderstorm chances over
the next few days. Weak surface high pressure is moving into the
area from the northwest. As this feature continues to move through
the area, winds will veer to the southeast across portions of
southwest Nebraska. This will help push more unstable air in. Aloft,
the region will still be under the influence of mid-level speed max
associated with a Northern Plains shortwave trough dropping out of
the Canadian Prairies. As daytime highs climb into the low 80s
coincident with mid 60s dew points, a narrow plume of strong
instability will develop across the higher elevations of the
southern Panhandle into far northeast Colorado. With h5 winds out
the west at 30 to 40 knots and southeast winds at the surface, deep
layer shear will be sufficient for semi-discrete storm development
immediately west of the CWA with the favored mode, at least
initially, supercells capable of large hail and damaging winds
before growing upscale. Based on forecast shear vectors and storm
motion vectors, expecting most activity to move northwest to
southeast giving the local area a very limited threat of seeing this
activity barring development further northeast than expected.
General thinking is that areas west of an Oshkosh to Wauneta line
with large hail and isolated damaging wind gusts the main concerns.
As activity grows upscale, its expected to dive south-southeast and
track along the sharp instability gradient and h7 isotherms.

Do believe this MCS will be quick to exit the area, likely by 06z,
later this evening. Modest isentropic lift will develop across the
area early Wednesday morning with the strongest ascent expected
across the Sandhills and points south. This ascent will be
reinforced by a few weak lobes of energy. Will limit PoPs to 30%
though as confidence in location of these pulses of energy is low.
Lows will fall into the 50s Wednesday morning with slightly drier
air in place and mostly clear skies expected. Wednesday will be
another similar setup as Tuesday with warmest temperatures within
southeast surface flow. This flow will once again help to usher in
better moisture and as temperatures climb into the low 80s in this
area, expecting another plume of strong instability to develop
across far northeast Colorado. Mid-level flow will continue to be
fairly strong, aoa 30 to 40 knot range which will create sufficient
deep layer shear for severe weather. There should be two waves of
thunderstorm development. The first of which develops within the
upslope flow across northeast Colorado which may graze the far
southwest CWA during the early evening. Lapse rates will again be
quite steep and lead to large hail being the favored hazard with
this initial activity. The second wave of storm development will
occur with the passage of a stronger shortwave within the northwest
flow aloft. As this wave moves into the area, a stout low-level jet
will develop and provide strong forcing for ascent and bring more
scattered rain and thunderstorms to the area during the early
morning hours Thursday. A few of these storms may be strong to
severe with some elevated instability to tap into that may lead to
some isolated severe hail. PWATs will be on the high side of
climatology and some moderate to heavy downpours are possible, but
the progressive nature of the activity will limit any flooding
concerns. Morning lows on Thursday should remain in the upper 50s.

.LONG TERM...(Wednesday night through Monday)
Issued at 402 AM CDT Tue Aug 13 2019

Beginning 12z Thursday. Upper-level ridge anchored to our southwest
will begin to flatten Thursday into Friday. Various pulses of energy
will move through the flow as it becomes more zonal leading to
increasing precipitation chances Thursday and Friday. Confidence in
timing and placement are low at the moment due to discrepancies in
the global models. A surface front looks to sweep through the area,
generally in the Friday night timeframe, helping to put a dent in
the moisture quality and thus lead to mostly dry weekend. Signs
point to a strengthening 4-Corners ridge around the middle of next
week, brining the area into more northerly flow and perhaps a much-
needed quiet period to the area.

&&

.AVIATION...(For the 12Z TAFS through 12Z Wednesday morning)
Issued at 609 AM CDT Tue Aug 13 2019

High level cloudiness will be on the increase today with scattered
decks between 12000 and 25000 FT AGL. Thunderstorms this morning
are expected to occur south of the KVTN terminal. Other activity
will develop later this afternoon across southwestern Nebraska.
The bulk of this activity is expected to be southwest and west of
the KLBF terminal. Will handle the thunderstorm mention at the
KLBF terminal with a VCTS group from 23z to 02z Wednesday.

&&

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

SHORT TERM...Jurgensen
LONG TERM...Jurgensen
AVIATION...Buttler

Hazardous Weather Outlook...UPDATED
National Weather Service North Platte NE
729 AM CDT Tue Aug 13 2019

NEZ004>010-022>029-035>038-056>059-069>071-094-141230-
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-
729 AM CDT Tue Aug 13 2019 /629 AM MDT Tue Aug 13 2019/

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

.DAY ONE...TODAY AND TONIGHT.

Isolated to scattered strong to severe thunderstorms are possible
today. Initially the risk for strong to severe storms will be
across northwestern Nebraska this morning then shifting to
southwestern Nebraska this afternoon into mid evening. Strong to
severe storms are possible west of a line from Brady to Hay
Springs with the greatest threat west of a line from Oshkosh to
Hayes Center. Large hail and damaging winds will be the main
severe threats.

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

Another round of scattered thunderstorms are possible Wednesday
afternoon into Wednesday night. Some storms may be severe, mainly
west of a line from Broken Bow to Cody. Large hail and damaging
winds are the main severe threats.

Thunderstorms are possible on Thursday across western and north
central Nebraska. Some strong to severe storms are possible
across the entire outlook area.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today or tonight.

&&

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

Special Weather Statement
National Weather Service North Platte NE
657 AM MDT Tue Aug 13 2019

NEZ024-094-131330-
Hooker-Western Cherry-
657 AM MDT Tue Aug 13 2019

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN CHERRY AND
NORTHWESTERN HOOKER COUNTIES...

At 656 AM MDT, a strong thunderstorm was located 23 miles north of
Whitman, or 39 miles northwest of Mullen, moving southeast at 30 mph.

Wind gusts up to 50 mph and nickel size hail are possible with this
storm.

Locations impacted include...
Whitman Road crossing the North Branch of the Middle Loup River,
Speckel Meir Lake, Sevenmile Hill, Round Lake, Intersection of
Highway 61 and Survey Valley Road and Hire.

This includes Highway 61 between mile markers 179 and 187.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4231 10180 4247 10168 4231 10118 4209 10136
TIME...MOT...LOC 1256Z 299DEG 27KT 4237 10168

Taylor

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
906 AM CDT TUE AUG 13 2019

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

0822 AM     HAIL             15 NNE ASHBY            42.23N 101.85W
08/13/2019  M1.75 INCH       CHERRY             NE   PUBLIC

            PEA TO GOLF BALL SIZE HAIL REPORTED. GROUND COVERED BY
            HAIL.

&&

ET

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
952 AM CDT TUE AUG 13 2019

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

0832 AM     HAIL             10 N HYANNIS            42.15N 101.76W
08/13/2019  M1.25 INCH       CHERRY             NE   PUBLIC

            HALF DOLLAR SIZE HAIL REPORTED.

&&

ET

Special Weather Statement
National Weather Service North Platte NE
855 AM MDT Tue Aug 13 2019

NEZ004-094-131530-
Sheridan-Western Cherry-
855 AM MDT Tue Aug 13 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHWESTERN CHERRY AND
SOUTHEASTERN SHERIDAN COUNTIES...

At 854 AM MDT, radar indicated strong thunderstorms were located
along a line extending from 21 miles southwest of Medicine Lake to 26
miles north of Ashby to 20 miles north of Ellsworth. Movement was
east at 40 mph.

Winds in excess of 40 mph and nickel size hail are possible with
these storms.

Locations impacted include...
Watson Lake, Round Lake, Big Hill, Dipping Vat Meadow, Billys Lake,
Wolf Hill, Intersection of Highway 61 and Survey Valley Road and Argo
Hill.

This includes the following highways...
 Highway 250 between mile markers 17 and 24.
 Highway 61 between mile markers 176 and 197.

LAT...LON 4236 10135 4227 10154 4213 10212 4234 10258
      4245 10217 4255 10165
TIME...MOT...LOC 1454Z 287DEG 33KT 4249 10172 4240 10209 4234 10241

Taylor

Special Weather Statement
National Weather Service North Platte NE
1054 AM MDT Tue Aug 13 2019

NEZ022-131730-
Garden-
1054 AM MDT Tue Aug 13 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN ARTHUR AND EAST
CENTRAL GARDEN COUNTIES...

At 1054 AM MDT, a strong thunderstorm was located near Crescent Lake
National Wildlife Refuge, or 18 miles north of Oshkosh, moving east
at 30 mph.

Penny size hail is possible with this storm.

Locations impacted include...
Crescent Lake National Wildlife Refuge, Deer Lake, Adams Flats,
Rackett, Bourquim Hill and Dogtown Flats.

LAT...LON 4177 10241 4172 10198 4157 10199 4140 10206
      4157 10250
TIME...MOT...LOC 1654Z 286DEG 24KT 4167 10235

Taylor

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1204 PM CDT TUE AUG 13 2019

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

0742 AM     HAIL             30 S GORDON             42.37N 102.20W
08/13/2019  M1.75 INCH       SHERIDAN           NE   PUBLIC

            REPORT SHARED WITH PHOTO VIA FACEBOOK

&&

ET