Alert archive / Kansas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 374, NWS Goodland, KS

August 8, 2018Graham County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Aug 8, 2018, 12:35 PM CDT for Graham County, Kansas. It was in force for 8 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 8, 2018, 12:35 PM CDT (17:35 UTC)
Expired: Aug 8, 2018, 12:43 PM CDT
In force: 8 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Graham County, KS

The radar

The Goodland radar (KGLD), 156 km from the middle of the area, began a volume at 17:38 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.

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 5.6 hours before the alert went out and 176 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: 83 J/kg
Mixed-layer CIN: -267 J/kg
Mixed-layer LCL: 1496 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: -45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Aug 8, 12:18 PM CDT, 17 minutes earlier.

Area forecast discussion, Aug 8, 12:18 PM CDT, 17 minutes before

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Hazardous weather outlook, Aug 8, 10:57 AM CDT, 1 hour 38 minutes before

Hazardous Weather Outlook
National Weather Service Goodland KS
957 AM MDT Wed Aug 8 2018

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-091600-
Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins-
Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove-
Greeley-Wichita-Dundy-Hitchcock-Red Willow-
957 AM MDT Wed Aug 8 2018 /1057 AM CDT Wed Aug 8 2018/

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

.DAY ONE...TODAY AND TONIGHT...

Isolated marginally severe storms are possible late this aftenooon
and evening across far east central Colorado. The primary threats
with these storms will be large hail and damaging winds.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed at this time.

In the hours before

Special weather statement, Aug 8, 7:42 AM CDT, 4 hours 53 minutes before

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  <link rel="stylesheet" href="index.css">
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<body>
  <main class="wrap">
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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Special weather statement, Aug 8, 9:05 AM CDT, 3 hours 30 minutes before

Special Weather Statement
National Weather Service Goodland KS
805 AM MDT WED AUG 8 2018

COZ090-KSZ001-081445-
Yuma County CO-Cheyenne KS-
805 AM MDT WED AUG 8 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN YUMA COUNTY IN
NORTHEASTERN COLORADO AND NORTHWESTERN CHEYENNE COUNTIES IN
NORTHWESTERN KANSAS UNTIL 845 AM MDT/945 AM CDT/...

At 804 AM MDT/904 AM CDT/, thunderstorm outflow was located 4 miles
southwest of Wray, moving southeast at 30 mph.

Winds in excess of 40 mph will be possible.

Locations impacted include...
Wray, Bonny Reservoir, Hale, Beecher Island, Laird, Idalia and
Vernon.

This includes Highway 385 between mile markers 208 and 210, and
between mile markers 212 and 248.

LAT...LON 4018 10212 4005 10205 4000 10205 4000 10202
      3972 10187 3957 10228 4005 10248
TIME...MOT...LOC 1404Z 331DEG 28KT 4003 10226

JN

Special weather statement, Aug 8, 11:49 AM CDT, 46 minutes before

Special Weather Statement
National Weather Service Goodland KS
1149 AM CDT WED AUG 8 2018

KSZ016-081730-
Graham KS-
1149 AM CDT WED AUG 8 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN GRAHAM COUNTY UNTIL
1230 PM CDT...

At 1149 AM CDT, Doppler radar was tracking a strong thunderstorm 8
miles north of Voda, moving east at 15 mph.

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

Locations impacted include...
Saint Peter.

LAT...LON 3913 9979 3913 10014 3927 10014 3931 9977
TIME...MOT...LOC 1649Z 255DEG 13KT 3918 10004

JN

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 9:28 PM CDT	Severe Thunderstorm Warning	GLD	Cheyenne	47 min
Aug 7, 10:16 PM CDT	Special Weather Statement	GLD	Cheyenne	14 min
Aug 8, 1:01 AM CDT	Special Weather Statement	GLD	Greeley	29 min
Aug 8, 11:49 AM CDT	Special Weather Statement	GLD	Graham	41 min
Aug 8, 11:54 AM CDT	Severe Thunderstorm Warning	GLD	Graham	36 min
Aug 8, 2:22 PM CDT	Special Weather Statement	GLD	Gove	23 min
Aug 8, 2:28 PM CDT	Severe Thunderstorm Warning	GLD	Gove	32 min
Aug 8, 2:40 PM CDT	Special Weather Statement	GLD	Wichita	35 min
Aug 8, 2:41 PM CDT	Severe Thunderstorm Warning	GLD	Wichita	19 min
Aug 8, 2:55 PM CDT	Severe Thunderstorm Warning	GLD	Gove, Logan	20 min
Aug 8, 3:16 PM CDT	Special Weather Statement	GLD	Logan	14 min
Aug 8, 3:17 PM CDT	Special Weather Statement	GLD	Wichita	13 min
Aug 8, 3:18 PM CDT	Special Weather Statement	GLD	Thomas	27 min
Aug 8, 3:23 PM CDT	Severe Thunderstorm Warning	GLD	Thomas	15 min
Aug 7, 7:28 PM CDT	Severe Thunderstorm Warning	GLD	Kit Carson	47 min
Aug 7, 7:33 PM CDT	Special Weather Statement	GLD	Yuma	27 min
Aug 7, 8:14 PM CDT	Severe Thunderstorm Warning	GLD	Kit Carson	46 min
Aug 7, 8:37 PM CDT	Special Weather Statement	GLD	Yuma	23 min
Aug 7, 8:47 PM CDT	Severe Thunderstorm Warning	GLD	Yuma	43 min
Aug 7, 8:49 PM CDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	41 min
Aug 8, 1:52 AM CDT	Special Weather Statement	GLD	Yuma	53 min
Aug 8, 4:13 AM CDT	Special Weather Statement	GLD	Yuma	47 min
Aug 8, 4:16 AM CDT	Special Weather Statement	GLD	Kit Carson	44 min
Aug 8, 7:42 AM CDT	Special Weather Statement	GLD	Kit Carson	63 min
Aug 8, 9:05 AM CDT	Special Weather Statement	GLD	Yuma	40 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2018 Every severe thunderstorm warning in 2018

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.