Alert archive / Kansas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 88, NWS Goodland, KS

June 27, 2020Graham County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Jun 27, 2020, 1:44 AM CDT for Graham County, Kansas. It was in force for 46 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
Jun 27, 2020, 1:44 AM CDT (06:44 UTC)
Expired
Jun 27, 2020, 2:30 AM CDT
In force
46 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

County Graham County, KS

The radar

The Goodland radar (KGLD), 156 km from the middle of the area, began a volume at 06:47 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 26, 7:50 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 6.7 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-pSkew-T log-p diagram, Dodge City, at 00:00Z on 2020-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 591 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 00:00Z on 2020-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
591 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
3347 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
41 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 Jun 27, 1:05 AM CDT, 39 minutes earlier.

Area forecast discussion, Jun 27, 1:05 AM CDT, 39 minutes before
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Hazardous weather outlook, Jun 26, 8:12 PM CDT, 5 hours 32 minutes before
Hazardous Weather Outlook
National Weather Service Goodland KS
712 PM MDT Fri Jun 26 2020

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-280115-
Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins-
Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove-
Greeley-Wichita-Dundy-Hitchcock-Red Willow-
712 PM MDT Fri Jun 26 2020 /812 PM CDT Fri Jun 26 2020/

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

.DAY ONE...TODAY...

Storms are ongoing in Eastern Colorado and Southwest Nebraska this
evening. These storms will continue to move from west to east over
the next several hours. A Severe Thunderstorm Watch remains in effect
until 9 PM MDT for Yuma, Kit Carson, and Cheyenne counties in
Colorado. A Severe Thunderstorm Watch remains in effect for
Southwestern Nebraska and Northwestern Kansas until 3 AM MDT. The
main threat with any storms will be wind gusts to 70 MPH, reduced
visibility due to blowing dust, hail up to quarters in diameter, and
locally heavy rain.

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

On Saturday, another round of strong to possibly severe
thunderstorms will move into the Tri-State Area from the west
between 4 and 6 PM MDT. Hail up to quarter size and wind gusts
around 70 MPH will be the main threats.

Elevated to near critical fire weather conditions are expected
Sunday, Monday, and Tuesday afternoons across East Central Colorado
into parts of West Central Kansas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will be needed this evening. Any reports of hail,
wind gusts, blowing dust, reduced visibility, or wind damage are
appreciated.

In the hours before

Local storm report, Jun 27, 12:16 AM CDT, 1 hour 28 minutes before
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Special weather statement, Jun 27, 12:25 AM CDT, 1 hour 19 minutes before
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Local storm report, Jun 27, 12:32 AM CDT, 1 hour 12 minutes before
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Special weather statement, Jun 27, 12:35 AM CDT, 1 hour 9 minutes before
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Local storm report, Jun 27, 1:08 AM CDT, 36 minutes before
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Special weather statement, Jun 27, 1:29 AM CDT, 15 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 8:25 PM CDTSevere Thunderstorm WarningGLDCheyenne65 min
Jun 26, 9:14 PM CDTSevere Thunderstorm WarningGLDCheyenne, Sherman, Wallace76 min
Jun 26, 10:17 PM CDTSevere Thunderstorm WarningGLDLogan, Sheridan, Sherman, Thomas, Wallace73 min
Jun 26, 10:26 PM CDTSpecial Weather StatementGLDGraham34 min
Jun 26, 10:59 PM CDTSpecial Weather StatementGLDGreeley, Wichita61 min
Jun 26, 11:33 PM CDTSpecial Weather StatementGLDGove, Logan, Sheridan, Thomas72 min
Jun 27, 12:25 AM CDTSpecial Weather StatementGLDWichita35 min
Jun 27, 12:35 AM CDTSpecial Weather StatementGLDGove, Graham, Sheridan55 min
Jun 27, 1:29 AM CDTSpecial Weather StatementGLDGove, Graham31 min
Jun 26, 7:39 PM CDTSpecial Weather StatementGLDYuma51 min
Jun 26, 7:55 PM CDTSpecial Weather StatementGLDYuma65 min
Jun 26, 8:21 PM CDTSpecial Weather StatementGLDYuma39 min
Jun 26, 8:42 PM CDTSpecial Weather StatementGLDKit Carson48 min
Jun 26, 8:51 PM CDTSevere Thunderstorm WarningGLDKit Carson, Yuma54 min
Jun 26, 9:04 PM CDTSpecial Weather StatementGLDCheyenne56 min
Jun 26, 7:25 PM CDTSpecial Weather StatementGLDDundy50 min
Jun 26, 9:37 PM CDTSpecial Weather StatementGLDDundy53 min
Jun 27, 5:15 PM CDTSpecial Weather StatementGLDDundy15 min
Jun 27, 5:38 PM CDTSpecial Weather StatementGLDDundy22 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2020Every severe thunderstorm warning in 2020

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.