Alert archive / Kansas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 202, NWS Goodland, KS

July 7, 2017Logan County, Wallace County, Wichita County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Jul 7, 2017, 10:04 PM CDT for Logan County, Wallace County, Wichita County, Kansas. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 7, 2017, 10:04 PM CDT (03:04 UTC)
Expired: Jul 7, 2017, 10:30 PM CDT
In force: 26 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 1.5 in
Wind: 70.0 mph

Counties Logan County, KS, Wallace County, KS, Wichita County, KS

The radar

The Goodland radar (KGLD), 73 km from the middle of the area, began a volume at 03:07 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 3.1 hours before the alert went out and 174 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1181 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 2416 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: 185 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

As transmitted.

758 
WUUS53 KGLD 080304
SVRGLD
KSC109-199-203-080330-
/O.NEW.KGLD.SV.W.0202.170708T0304Z-170708T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
904 PM MDT FRI JUL 7 2017

The National Weather Service in Goodland has issued a

* Severe Thunderstorm Warning for...
  Northern Wichita County in west central Kansas...
  Southeastern Wallace County in west central Kansas...
  Southwestern Logan County in west central Kansas...

* Until 930 PM MDT/1030 PM CDT/

* At 904 PM MDT/1004 PM CDT/, a severe thunderstorm was located 10
  miles southeast of Wallace, or 17 miles east of Sharon Springs,
  moving south at 30 mph.

  HAZARD...70 mph wind gusts and ping pong ball size hail. 

  SOURCE...Radar indicated. 

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           considerable tree damage. Wind damage is also likely to 
           mobile homes, roofs, and outbuildings. 

* This severe thunderstorm will remain over mainly rural areas of
  northern Wichita...southeastern Wallace and southwestern Logan
  Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3870 10157 3891 10158 3891 10131 3859 10122
      3859 10157
TIME...MOT...LOC 0304Z 357DEG 27KT 3880 10145 

HAIL...1.50IN
WIND...70MPH
 
$$

DLF

1 follow-up statement

721 
WWUS53 KGLD 080329
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
929 PM MDT FRI JUL 7 2017

KSC109-199-203-080339-
/O.EXP.KGLD.SV.W.0202.000000T0000Z-170708T0330Z/
Wichita KS-Wallace KS-Logan KS-
929 PM MDT FRI JUL 7 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WICHITA...
SOUTHEASTERN WALLACE AND SOUTHWESTERN LOGAN COUNTIES WILL EXPIRE AT
930 PM MDT/1030 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.

LAT...LON 3870 10157 3891 10158 3891 10131 3859 10122
      3859 10157
TIME...MOT...LOC 0329Z 357DEG 27KT 3862 10144 

$$

DLF

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Goodland, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 7, 6:37 PM CDT, 3 hours 27 minutes earlier.

Area forecast discussion, Jul 7, 6:37 PM CDT, 3 hours 27 minutes before

Area Forecast Discussion
National Weather Service Goodland KS
537 PM MDT Fri Jul 7 2017

.SHORT TERM...(This evening through Saturday)
Issued at 215 PM MDT Fri Jul 7 2017

Upper ridge centered over the Four Corners will steer shortwave
energy southeastward across the High Plains. Convection already
developing along the Palmer Divide this afternoon will continue to
develop eastward along a mesoscale boundary apparent on KFTG
radar, then move southeast across the local area tonight with the
mean flow. Environment, at least early, will be moderately
unstable with deep layer shear 30-35kts. Models have pushed back
timing a bit and may not arrive in northwest Kansas until later in
the evening. SBCape will be waning and CIN increasing by that
time and storms may become elevated. As a result, wind and hail
threat may be limited to northeast Colorado early in the evening,
with more of a heavy rain threat later in the evening and
overnight as storms move east into precipitable water values of
around 1.00-1.50 inches. Best precipitation chances will be south
of Interstate 70.

Upper pattern changes little for Saturday with the Four Corners
ridge dominant and weak shortwave energy rotating around it
through the central Plains. Surface pattern will be messy and
dependent on effects of overnight convection, but still looks to
be mainly easterly low level upslope with the frontal boundary
near or just south. Convective allowing models favor northern part
of the area for afternoon storms while global models show
scattered storms developing just about everywhere. There will be
weak to moderate instability and deep layer shear at around
20-30kts. SPC has the local area in a marginal risk which seems
appropriate given all of the uncertainties. Temperatures will be
similar to today, mainly in the lower 90s.

.LONG TERM...(Saturday night through Friday)
Issued at 150 PM MDT Fri Jul 7 2017

Hot temperatures will dominate the extended period with chances for
precipitation. The region will be under a perpetual ridge, with a
transition between being on the eastern side of the ridge (bringing
in northwest flow aloft) or being directly under the ridge. Tuesday
is the only day where the upper level flow flattens out briefly.

What causes precipitation chances through the majority of the period
will be shortwaves that move over the region. Along with hot
temperatures and instabilty storms will be possible. This set up is
variable though, chances for precipitation are strong but timing and
location will vary and will need to be adjusted as each day
approaches.

Ridging will create hot temperatures during the period. Monday and
Tuesday are currently forecast to be the hottest with some locations
reaching the low 100s. The remainder of the days will be in the mid
to upper 90s.

&&

.AVIATION...(For the 00Z TAFS through 00Z Saturday evening)
Issued at 537 PM MDT Fri Jul 7 2017

VFR conditions should prevail through the TAF period at KGLD and
KMCK, though brief 3-6sm vis could be possible if stronger
thunderstorm or shower impacts either terminal. Currently best
chance of showers/thunderstorms is at KGLD with activity in
eastern CO expected to expand eastward early this evening then
transition along/south of I-70 in Kansas. In addition to the
activity models show just south of the Nebraska state line late
this evening, a smaller area of showers/thunderstorms over western
Nebraska may drop south towards KMCK (only a few models are
supporting this). I adjusted timing based on current
confidence/timing.

Prevailing winds will remain below 12kt through the TAF period.
The exception would be if thunderstorm activity is able to produce
stronger winds that could impact the terminals (not confident
enough to include yet).

&&

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

SHORT TERM...024
LONG TERM...CLT
AVIATION...DR

Hazardous weather outlook, Jul 7, 11:45 AM CDT, 10 hours 19 minutes before

Hazardous Weather Outlook
National Weather Service Goodland KS
1045 AM MDT Fri Jul 7 2017

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-081645-
Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins-
Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove-
Greeley-Wichita-Dundy-Hitchcock-Red Willow-
1045 AM MDT Fri Jul 7 2017 /1145 AM CDT Fri Jul 7 2017/

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

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

Scattered thunderstorms will develop in northeast Colorado later this
afternoon or early evening and then move across the remainder of the
area tonight. A few severe storms are possible mainly this evening
with large hail and damaging winds, then locally heavy rainfall and
possible flash flooding through the remainder of the night.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH FRIDAY...

From Saturday morning into the evening hours a few severe
thunderstorms will be possible across the entire area.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required.

In the hours before

Local storm report, Jul 7, 8:12 PM CDT, 1 hour 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
712 PM MDT FRI JUL 07 2017

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

0705 PM     HAIL             13 NNW LEVANT           39.54N 101.31W
07/07/2017  E1.50 INCH       THOMAS             KS   TRAINED SPOTTER

&&

TLYNCH

Local storm report, Jul 7, 8:38 PM CDT, 1 hour 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
738 PM MDT FRI JUL 07 2017

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

0719 PM     FUNNEL CLOUD     7 N BREWSTER            39.46N 101.40W
07/07/2017                   SHERMAN            KS   TRAINED SPOTTER

            SEVERAL REPORTS OF A SMALL FUNNEL CLOUD ABOUT ONE THIRD
            OF THE WAY TO THE GROUND.

&&

TLYNCH

Local storm report, Jul 7, 8:49 PM CDT, 1 hour 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
749 PM MDT FRI JUL 07 2017

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

0746 PM     HAIL             2 S BREWSTER            39.34N 101.37W
07/07/2017  E2.50 INCH       THOMAS             KS   PUBLIC

&&

TLYNCH

Local storm report, Jul 7, 8:50 PM CDT, 1 hour 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
750 PM MDT FRI JUL 07 2017

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

0747 PM     TSTM WND GST     2 SW BREWSTER           39.34N 101.40W
07/07/2017  E60.00 MPH       SHERMAN            KS   TRAINED SPOTTER

            SPOTTER ESTIMATED WINDS WERE AT LEAST 60 MPH.

0747 PM     HAIL             2 SW BREWSTER           39.34N 101.40W
07/07/2017  E1.75 INCH       SHERMAN            KS   TRAINED SPOTTER

&&

DR

Special weather statement, Jul 7, 9:26 PM CDT, 38 minutes before

Special Weather Statement
National Weather Service Goodland KS
826 PM MDT FRI JUL 7 2017

KSZ027-080300-
Wallace KS-
826 PM MDT FRI JUL 7 2017

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL WALLACE COUNTY UNTIL
900 PM MDT...

At 825 PM MDT, Doppler radar was tracking a strong thunderstorm 6
miles northwest of Weskan, or 16 miles west of Sharon Springs, moving
southeast at 10 mph.

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

Locations impacted include...
Weskan.

LAT...LON 3884 10205 3897 10204 3892 10183 3878 10197
TIME...MOT...LOC 0225Z 310DEG 11KT 3891 10205

DLF

Local storm report, Jul 7, 10:03 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
903 PM MDT FRI JUL 07 2017

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

0849 PM     HAIL             9 SW WINONA             38.97N 101.36W
07/07/2017  E1.25 INCH       LOGAN              KS   STORM CHASER

            HAIL COVERED THE ROAD. REPORTS OF VEHICLE SLIDE OFFS.

&&

TLYNCH

The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 7, 7:02 PM CDT	Severe Thunderstorm Warning	GLD	Rawlins	43 min
Jul 7, 7:37 PM CDT	Severe Thunderstorm Warning	GLD	Cheyenne, Rawlins	37 min
Jul 7, 8:01 PM CDT	Severe Thunderstorm Warning	GLD	Sherman, Thomas	44 min
Jul 7, 8:36 PM CDT	Severe Thunderstorm Warning	GLD	Sherman, Thomas	39 min
Jul 7, 9:16 PM CDT	Severe Thunderstorm Warning	GLD	Logan, Thomas	44 min
Jul 7, 9:26 PM CDT	Special Weather Statement	GLD	Wallace	34 min
Jul 7, 9:51 PM CDT	Severe Thunderstorm Warning	GLD	Greeley, Wallace	29 min
Jul 7, 10:28 PM CDT	Severe Thunderstorm Warning	GLD	Greeley, Wichita	32 min
Jul 7, 10:59 PM CDT	Special Weather Statement	GLD	Wichita	46 min
Jul 8, 4:44 PM CDT	Special Weather Statement	GLD	Rawlins	16 min
Jul 8, 5:49 PM CDT	Special Weather Statement	GLD	Thomas	26 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2017 Every severe thunderstorm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.