Severe Thunderstorm Warning 270, NWS Goodland, KS

503 
WWUS53 KGLD 142147
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
347 PM MDT MON AUG 14 2017

KSC023-153-NEC057-142230-
/O.CON.KGLD.SV.W.0270.000000T0000Z-170814T2230Z/
Cheyenne KS-Rawlins KS-Dundy NE-
347 PM MDT MON AUG 14 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM
MDT/530 PM CDT/ FOR NORTHEASTERN CHEYENNE...NORTHWESTERN RAWLINS
COUNTIES IN NORTHWESTERN KANSAS AND SOUTH CENTRAL DUNDY COUNTIES IN
SOUTHWESTERN NEBRASKA...

At 347 PM MDT/447 PM CDT/, severe thunderstorms were located along a
line extending from 4 miles south of Benkelman to 9 miles northeast
of McDonald, and are nearly stationary.
 
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...
Benkelman and McDonald. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4007 10156 3993 10109 3974 10135 3993 10164
TIME...MOT...LOC 2147Z 188DEG 4KT 3999 10155 3989 10127 

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

JRM

002 
WWUS53 KGLD 142155
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
355 PM MDT MON AUG 14 2017

KSC023-153-NEC057-142230-
/O.CON.KGLD.SV.W.0270.000000T0000Z-170814T2230Z/
Cheyenne KS-Rawlins KS-Dundy NE-
355 PM MDT MON AUG 14 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM
MDT/530 PM CDT/ FOR NORTHEASTERN CHEYENNE...NORTHWESTERN RAWLINS
COUNTIES IN NORTHWESTERN KANSAS AND SOUTH CENTRAL DUNDY COUNTIES IN
SOUTHWESTERN NEBRASKA...

At 355 PM MDT/455 PM CDT/, severe thunderstorms were located along a
line extending from 3 miles south of Benkelman to 9 miles northeast
of McDonald, and are nearly stationary.
 
HAZARD...Golf 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...
Benkelman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Goodland.

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

&&

LAT...LON 4007 10156 3996 10121 3977 10131 3993 10163
TIME...MOT...LOC 2155Z 188DEG 4KT 4000 10155 3990 10127 

HAIL...1.75IN
WIND...60MPH
 
$$

JRM

088 
WWUS53 KGLD 142206
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
506 PM CDT MON AUG 14 2017

NEC057-142216-
/O.CAN.KGLD.SV.W.0270.000000T0000Z-170814T2230Z/
Dundy NE-
506 PM CDT MON AUG 14 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL DUNDY COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 3996 10121 3977 10131 3993 10163 4000 10158
      4000 10140
TIME...MOT...LOC 2206Z 257DEG 3KT 3998 10157 3988 10128 

$$

KSC023-153-142230-
/O.CON.KGLD.SV.W.0270.000000T0000Z-170814T2230Z/
Cheyenne KS-Rawlins KS-
506 PM CDT MON AUG 14 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR NORTHEASTERN CHEYENNE AND NORTHWESTERN RAWLINS COUNTIES IN
NORTHWESTERN KANSAS...

At 506 PM CDT, severe thunderstorms were located along a line
extending from 5 miles southwest of Benkelman to 7 miles northeast of
McDonald, and are nearly stationary.
 
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. 

These severe thunderstorms will remain over mainly rural areas of
northeastern Cheyenne and northwestern Rawlins Counties in
northwestern Kansas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Goodland.

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

&&

LAT...LON 3996 10121 3977 10131 3993 10163 4000 10158
      4000 10140
TIME...MOT...LOC 2206Z 257DEG 3KT 3998 10157 3988 10128 

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

JRM

096 
WWUS53 KGLD 142224
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
524 PM CDT MON AUG 14 2017

KSC023-153-142232-
/O.EXP.KGLD.SV.W.0270.000000T0000Z-170814T2230Z/
Cheyenne KS-Rawlins KS-
524 PM CDT MON AUG 14 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CHEYENNE AND
NORTHWESTERN RAWLINS COUNTIES IN NORTHWESTERN KANSAS WILL EXPIRE AT
530 PM CDT...

This warning has been replaced with a new warning for much of 
Cheyenne county and portions of western Rawlins county. Please refer 
to that warning for updated information.

Remember, a Severe Thunderstorm Warning still remains in effect for 
portions of the area.

LAT...LON 3996 10121 3977 10131 3993 10163 4000 10158
      4000 10140
TIME...MOT...LOC 2222Z 188DEG 4KT 3999 10157 3989 10128 

$$

JRM

Area Forecast Discussion
National Weather Service Goodland KS
241 PM MDT Mon Aug 14 2017

.SHORT TERM...(This evening through Tuesday)
Issued at 236 PM MDT Mon Aug 14 2017

Across the Tri State region this afternoon...summer temperatures
have returned to the area with locales currently seeing a range
mainly from the mid 80s to the lower 90s...under mainly sunny/mostly
sunny skies. SSE winds allowing for moist airmass with dewpts
ranging from the mid 50s to the mid 60s.

For the rest of the afternoon into the evening hours...increasing
low level clouds expected from the west as a weak shortwave slowly
works east from the NC Rockies. Some weak showers activity is
currently working across the NC Colorado in tandem with the
shortwave. Models do track the system out into the Plains Region
later tonight and east of the CWA by Tuesday morning. Even after
sunset...instability will remain over the region prompting the
potential for some rw/trw...but below severe limits. Have continued
trend of pops from previous shift keeping locales along and north of
Interstate 70 seeing the best chances for precip. Overnight lows
will be in the 60s.

Have continued mention of patchy fog after midnight tonight to
around 14z Tuesday.

Going into Tuesday...similar airmass over the region as strong WAA
on southerly flow will once again bring temps into the upper 80s to
lower 90s. Models shift a stronger shortwave off the central Rockies
northeast into the Plains Region. Convection is expected to begin by
late afternoon and carry into the evening hrs. The approach of this
system combined with the very unstable low level airmass will create
the potential for severe wx. The SPC has the entire forecast area
under a Slight Risk as a result. Large hail...damaging winds and
even a few tornados are possible...especially along and north of the
KS/NE border. With high PW values over an inch expected...locally
heavy rainfall could bring about flash flooding issues to many
locales.

.LONG TERM...(Tuesday night through Monday)
Issued at 238 PM MDT Mon Aug 14 2017

Tuesday night: 12Z model runs continue to show the potential for
severe weather through the evening and even after midnight for much
of the area. Model soundings show good severe weather parameters
across the area, with the best dynamics along and north of the KS/NE
border. 9Z SREF soundings for the McCook area show ample CAPE and 0-
6km bulk shear, but also have right arcing hodographs, strong SFC-
1km helicity, and PWATS over 1.75 inches. This means large hail,
damaging winds, a few brief tornadoes, and heavy rainfall will be
possible with any storms that form.

Wednesday-Monday: After longwave trough traverses the area
Wednesday, NW to zonal flow sets up aloft through Saturday. Upper
level ridging on Sunday brings drier weather through Monday. Chance
of showers and storms Thursday and Saturday evenings with the best
chance of rain and storms coming Thursday night. Daytime highs warm
through the period.

&&

.AVIATION...(For the 18Z TAFS through 18Z Tuesday afternoon)
Issued at 1121 AM MDT Mon Aug 14 2017

For KGLD and KMCK...VFR conditions expected through the period.
Slight chance of thunderstorms across the area this evening.
Omitted mention of VCTS or VCSH due to lack of confidence in where
storm formation would be, if any. Skies should remain clear and
winds light and out of a southerly direction through the morning.

&&

.GLD WATCHES/WARNINGS/ADVISORIES...
KS...NONE.
CO...NONE.
NE...NONE.
&&

SHORT TERM...JN
LONG TERM...SME
AVIATION...SME

Hazardous Weather Outlook
National Weather Service Goodland KS
341 PM MDT Mon Aug 14 2017

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-152145-
Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins-
Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove-
Greeley-Wichita-Dundy-Hitchcock-Red Willow-
341 PM MDT Mon Aug 14 2017 /441 PM CDT Mon Aug 14 2017/

This hazardous weather outlook is for east central Colorado...
extreme southwest Nebraska and northwest Kansas.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

Strong to severe thunderstorms are possible this afternoon east of
the Colorado border. Large hail up to half dollar size and wind
gusts of 60 MPH are possible with the strongest storms through the
early evening. Due to the slow storm motion and heavy rainfall,
localized flooding is possible with any storms that develop.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH MONDAY...

An active pattern will continue to produce isolated to scattered
thunderstorms each day across the forecast area. The next best
chance for severe thunderstorms will be Tuesday afternoon and
evening. Large hail and damaging winds are the primary threats along
with the potential for localized heavy rainfall leading to flash
flooding as storms move across the region.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required.

Special Weather Statement
National Weather Service Goodland KS
404 PM CDT MON AUG 14 2017

KSZ002-142130-
Rawlins KS-
404 PM CDT MON AUG 14 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN RAWLINS COUNTY UNTIL
430 PM CDT...

At 404 PM CDT, Doppler radar was tracking a strong thunderstorm 11
miles north of McDonald, or 12 miles southeast of Benkelman. This
storm was nearly stationary.

Nickel size hail will be possible with this storm.

This storm will remain over mainly rural areas of northwestern
Rawlins County.

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.

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 3984 10115 3987 10138 4000 10141 4000 10119
TIME...MOT...LOC 2104Z 253DEG 2KT 3995 10134

JRM