Severe Thunderstorm Warning 68, NWS North Platte, NE

519 
WWUS53 KLBF 292109
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
409 PM CDT THU JUN 29 2017

NEC089-183-292145-
/O.CON.KLBF.SV.W.0068.000000T0000Z-170629T2145Z/
Holt NE-Wheeler NE-
409 PM CDT THU JUN 29 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR SOUTHEASTERN HOLT AND NORTHERN WHEELER COUNTIES...

At 409 PM CDT, a severe thunderstorm was located 7 miles southeast of
Chambers, or 22 miles south of O'neill, moving east at 30 mph.

HAZARD...Half dollar size hail. 

SOURCE...Radar indicated. 

IMPACT...Damage to vehicles is expected. 

Locations impacted include...
Ewing, Knievels Corner and Goose Lake State Wildlife Management Area.

This includes Highway 281 between mile markers 153 and 167.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

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

&&

LAT...LON 4203 9869 4220 9874 4233 9831 4222 9830
      4201 9829
TIME...MOT...LOC 2109Z 262DEG 26KT 4213 9865 

HAIL...1.25IN
WIND...<50MPH
 
$$

JWS

707 
WWUS53 KLBF 292121 RRA
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
421 PM CDT THU JUN 29 2017

NEC089-183-292145-
/O.CON.KLBF.SV.W.0068.000000T0000Z-170629T2145Z/
Holt NE-Wheeler NE-
421 PM CDT THU JUN 29 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR SOUTHEASTERN HOLT AND NORTHERN WHEELER COUNTIES...

At 420 PM CDT, a severe thunderstorm was located 10 miles southwest
of Ewing, or 21 miles south of O'neill, moving east at 40 mph.

HAZARD...Half dollar size hail. 

SOURCE...Radar indicated. 

IMPACT...Damage to vehicles is expected. 

Locations impacted include...
Ewing, Knievels Corner and Goose Lake State Wildlife Management Area.

This includes Highway 281 between mile markers 153 and 167.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4203 9869 4220 9874 4233 9831 4222 9830
      4201 9829
TIME...MOT...LOC 2120Z 262DEG 33KT 4216 9851 

HAIL...1.25IN
WIND...<50MPH
 
$$

JWS

861 
WWUS53 KLBF 292145
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
445 PM CDT THU JUN 29 2017

NEC089-183-292154-
/O.EXP.KLBF.SV.W.0068.000000T0000Z-170629T2145Z/
Holt NE-Wheeler NE-
445 PM CDT THU JUN 29 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HOLT AND NORTHERN
WHEELER COUNTIES WILL EXPIRE AT 445 PM CDT...
                
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 heavy rain are still possible with this thunderstorm.

A severe thunderstorm watch remains in effect until 1100 PM CDT for
north central Nebraska.

LAT...LON 4203 9869 4220 9874 4233 9831 4222 9830
      4201 9829
TIME...MOT...LOC 2144Z 262DEG 26KT 4218 9829 

$$

JWS

Area Forecast Discussion
National Weather Service North Platte NE
344 PM CDT Thu Jun 29 2017

.SHORT TERM...(This evening through Friday)
Issued at 343 PM CDT Thu Jun 29 2017

A SFC frontal boundary draped across Ncntl Neb near Oneill north to
around Winner SD is expected to be the focus for severe storm
development late this afternoon through early evening. Storm
coverage is expected to be isolated to scattered and quite severe
given the high CAPE and 50 kt 500mb winds aloft. The 15z-18z HRRR
radar product depicted a bow echo producing model generated winds
gusts as high as 95 mph. The forecast storm was east of Holt County
in the Missouri river valley. Some models like the NAM and HRRR EXP
were a bit farther west with storm initiation. The location of the
front around 21z this afternoon will likely dictate the location of
storm development.

There is a chance for storm development off the nrn portions of the
Front range and Laramie range this afternoon which could drift into
Swrn Neb this evening. Not sure if it will make it into Swrn Neb
since this area will be post-frontal.

Otherwise the forecast is dry tonight. The model consensus indicates
a weakly organized area of showers and thunderstorms, currently
affecting the Tetons and Big Horn range, will move into Garden
County Friday morning and affect the Cntl Sandhills throughout the
day. Blended guidance plus bias correction suggested highs in the
70s Friday with mostly cloudy skies. H700mb temperatures fall into
the low single digits celsius. Lows tonight fall into the 50s to
lower 60s using the same guidance blend.

.LONG TERM...(Friday night through Thursday)
Issued at 343 PM CDT Thu Jun 29 2017

The ECM is about 6 hours slower with the convective system forecast
to develop off the Black Hills Sunday afternoon. The model waits
until 06z to carry it into Nrn Neb. The GFS and GEM are faster
igniting storms off the Black Hills around 18z. The GFS model also
suggests storm activity forming on the Cheyenne Divide which moves
through Swrn Neb. The POP forecast is for scattered storm coverage
which is appropriate for a high CAPE capped atmosphere with H700mb
temperatures in the 10-12C range. Note GFS and ECM indicate HP
storm type QPF totals with bulls-eyes of 1-inch+ amounts.

There is a chance that the models are too fast developing storms
Sunday and the better rain chance could be Monday. The forecast
carries a chance POP Monday afternoon for storm development.

No other rain chances are in place; just isolated thunderstorms here
and there. The upper level ridge of high pressure across Old Mexico
will build north toward the Cntl Plains Sunday and present hot
weather Tuesday through Thursday. There is a chance rain cooled air
could enter Nebraska and take the edge off temperatures. This would
be the result of outflow from storms across the Nrn Plains.

The temperature forecast is for upper 80s to mid 90s Sunday and
beyond. This could be conservative given the 12-14C 700mb
temperatures that are forecast by the models.

&&

.AVIATION...(For the 18Z TAFS through 18Z Friday afternoon)
Issued at 1230 PM CDT Thu Jun 29 2017

VFR is generally expected this afternoon, tonight and Friday.

A SFC frontal boundary draped across Ncntl Neb near Oneill north to
around Winner SD is expected to be the focus for mostly isolated
severe storm development late this afternoon through early evening.
The location of the front around 21z this afternoon will dictate
the location of storm development.

The model consensus indicates a weakly organized area of showers
and thunderstorms, currently affecting the Tetons and Big Horn
range, will move into Garden County Friday morning and affect the
Cntl Sandhills throughout the day. The SREF and other models,
except for the NAM, indicate VFR CIGS.

&&

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

SHORT TERM...CDC
LONG TERM...CDC
AVIATION...CDC

Hazardous Weather Outlook...UPDATED
National Weather Service North Platte NE
328 PM CDT Thu Jun 29 2017

NEZ004>010-022>029-035>038-056>059-069>071-094-302030-
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-
328 PM CDT Thu Jun 29 2017 /228 PM MDT Thu Jun 29 2017/

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

.DAY ONE...TONIGHT.

Thunderstorms will be possible late this afternoon and early this
evening, mainly over the eastern half of the outlook area.

A few severe thunderstorms are expected to develop this afternoon
lasting until 8 pm. Storm motion will be east and the area of
concern is generally along and east of a line from Butte to
Broken Bow to Stockville. Large hail and wind damage are the
primary threat and the risk of severe weather will decrease with
the passage of a cold front accompanied by a wind shift from the
northwest.

Isolated thunderstorms are possible across the eastern Panhandle
counties and southwest Nebraska tonight. No severe weather is
anticipated with these storms.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

Thunderstorms are possible on Friday across all of western and
north central Nebraska. No severe storms are expected.

Thunderstorms are possible Sunday afternoon into Sunday night. At
this time, it is too early to determine the severe weather
threat.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed late this afternoon and evening.

&&

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

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
212 PM CDT THU JUN 29 2017

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

0913 PM     TSTM WND DMG     ANSELMO                 41.62N 99.86W
06/27/2017                   CUSTER             NE   NWS STORM SURVEY

            EST 88MPH. TREE UPROOTED AT THE CATHOLIC CHURCH IN SOUTH
            ANSELMO. SEVERAL OTHER TREES HAD LARGE LIMBS UP TO 12
            INCHES IN DIAMETER BROKEN. SOME TREES UPROOTED BUT DID
            NOT APPEAR TO BE FULLY HEALTHY. PART OF A LARGE SHED LOST
            A PORTION OF THE ROOF.

&&

KALLEN

Special Weather Statement
National Weather Service North Platte NE
228 PM CDT THU JUN 29 2017

NEZ009-010-292015-
Holt NE-Rock NE-
228 PM CDT THU JUN 29 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN ROCK...NORTHEASTERN
LOUP AND SOUTHWESTERN HOLT COUNTIES UNTIL 315 PM CDT...

At 228 PM CDT, Doppler radar was tracking a strong thunderstorm near
Rose, or 25 miles northeast of Brewster, moving northeast at 35 mph.

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

Locations impacted include...
Rose and Sybrant.

This includes Highway 183 between mile markers 150 and 155.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4212 9890 4208 9943 4209 9950 4215 9958
      4243 9923
TIME...MOT...LOC 1928Z 244DEG 32KT 4215 9947

JWS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
315 PM CDT THU JUN 29 2017

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

0308 PM     HAIL             7 SW AMELIA             42.16N 99.06W
06/29/2017  E1.25 INCH       HOLT               NE   CO-OP OBSERVER

            ESTIMATED HAIL IN SIZE FROM DIME TO HALF DOLLAR.

&&

SJACOBS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
330 PM CDT THU JUN 29 2017

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

0330 PM     HAIL             24 SW O'NEILL           42.21N 98.98W
06/29/2017  E1.00 INCH       HOLT               NE   PUBLIC

&&

SJACOBS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
334 PM CDT THU JUN 29 2017

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

0332 PM     HAIL             4 S AMELIA              42.17N 98.96W
06/29/2017  E1.75 INCH       HOLT               NE   911 CALL CENTER

            CHAMBERS FIRE DEPARTMENT MESAURED GOLF BALL SIZE HAIL
            WITH GUSTS TO 40 MPH.

&&

SJACOBS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
358 PM CDT THU JUN 29 2017

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

0352 PM     HAIL             1 ESE O'NEILL           42.46N 98.63W
06/29/2017  M1.25 INCH       HOLT               NE   TRAINED SPOTTER

            TRAINED SPOTTER REPORTS HALF DOLLAR SIZE HAIL 1 MILE ESE
            OF ONEILL.

&&

SJACOBS