Alert archive / Kansas / Special Weather Statements in 2017

Special Weather Statement, NWS Goodland, KS

June 28, 2017Norton County, Kansas

NWS Goodland, KS issued this special weather statement at Jun 28, 2017, 12:58 AM CDT for Norton County, Kansas. It was in force for 47 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
Jun 28, 2017, 12:58 AM CDT (05:58 UTC)
Expired
Jun 28, 2017, 1:45 AM CDT
In force
47 min
Issued by
NWS Goodland, KS

County Norton County, KS

The radar

The Grand Island radar (KUEX), 143 km from the middle of the area, began a volume at 06:01 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 6.0 hours before the alert went out and 163 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, N. Platte/Lee Bi, NE at 00:00Z on 2017-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2312 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, N. Platte/Lee Bi, NE at 00:00Z on 2017-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 square meters per square second.193958Sfc1 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
2312 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
2154 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
303 m²/s²
Significant tornado parameter
0.0
Supercell composite
12.3

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 28, 12:25 AM CDT, 33 minutes earlier.

Area forecast discussion, Jun 28, 12:25 AM CDT, 33 minutes before
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Hazardous weather outlook, Jun 27, 11:46 AM CDT, 13 hours 12 minutes before
Hazardous Weather Outlook
National Weather Service Goodland KS
1046 AM MDT Tue Jun 27 2017

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-281700-
Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins-
Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove-
Greeley-Wichita-Dundy-Hitchcock-Red Willow-
1046 AM MDT Tue Jun 27 2017 /1146 AM CDT Tue Jun 27 2017/

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

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

Isolated thunderstorms will develop across East Central Colorado
by 2 PM MDT and increase in coverage as they spread east through the
evening. Large hail in excess of 2 inches and damaging winds in
excess of 70 mph possible threats with this activity. Tornadoes may
also occur with any storms in the East Central Colorado this
afternoon.

Isolated storms may develop along and east of Highway 83 this
afternoon. If storms do develop they will quickly become severe with
2 inch diameter hail or larger, 70 MPH plus wind gusts and tornadoes
all possible with these storms.

Another final of severe thunderstorms may develop this evening east
of the Colorado border. Large hail up to half dollar size may occur
with these storms. The severe threat will end by 10 PM MDT or 11 PM
CDT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH TUESDAY...

Severe thunderstorms will be possible each afternoon and evening
from Wednesday through Thursday, and again on Sunday. Large hail and
damaging winds will be the main threats.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will be needed this afternoon and evening. Any
severe weather reports are greatly appreciated through social media
or by phone.

In the hours before

Local storm report, Jun 27, 11:33 PM CDT, 1 hour 25 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE GOODLAND KS
1033 PM MDT TUE JUN 27 2017

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

0903 PM     TSTM WND GST     4 SSW BURLINGTON        39.25N 102.30W
06/27/2017  M59.00 MPH       KIT CARSON         CO   ASOS

&&

DR
Special weather statement, Jun 27, 11:46 PM CDT, 1 hour 12 minutes before
Special Weather Statement
National Weather Service Goodland KS
1146 PM CDT TUE JUN 27 2017

KSZ016-280515-
Graham KS-
1146 PM CDT TUE JUN 27 2017

...SIGNIFICANT WEATHER ADVISORY FOR GRAHAM COUNTY UNTIL 1215 AM
CDT...

At 1146 PM CDT, thunderstorm outflow was located 5 miles southwest of
Hill City, moving east at 30 mph.

Wind gusts of 50 to 55 mph will be possible.

Locations impacted include...
Hill City, Morland, Bogue, Nicodemus, Penokee and Saint Peter.

LAT...LON 3913 10015 3957 10016 3956 9961 3914 9961
TIME...MOT...LOC 0446Z 255DEG 27KT 3931 9992

Lockhart
Local storm report, Jun 27, 11:55 PM CDT, 1 hour 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
1055 PM MDT TUE JUN 27 2017

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

1036 PM     TSTM WND GST     6 S LEVANT              39.30N 101.20W
06/27/2017  M60 MPH          THOMAS             KS   MESONET

            MESONET SITE MEASURED 60 MPH GUST

&&

SME
Local storm report, Jun 27, 11:57 PM CDT, 1 hour 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
1057 PM MDT TUE JUN 27 2017

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

1045 PM     TSTM WND GST     6 W MINGO               39.27N 101.07W
06/27/2017  M67 MPH          THOMAS             KS   MESONET

            KSCOLBY9 MESONET SITE MEASURED 67 MPH GUST

&&

SME
Special weather statement, Jun 28, 12:49 AM CDT, 9 minutes before
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Special weather statement, Jun 28, 12:58 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 7:16 PM CDTSevere Thunderstorm WarningGLDSherman, Thomas59 min
Jun 27, 7:32 PM CDTSevere Thunderstorm WarningGLDWallace43 min
Jun 27, 8:20 PM CDTSpecial Weather StatementGLDSherman25 min
Jun 27, 10:27 PM CDTSpecial Weather StatementGLDGove, Logan, Sheridan, Thomas48 min
Jun 27, 10:44 PM CDTSpecial Weather StatementGLDSherman, Wallace46 min
Jun 27, 11:31 PM CDTSpecial Weather StatementGLDDecatur, Gove, Logan, Sheridan, Thomas59 min
Jun 27, 11:46 PM CDTSpecial Weather StatementGLDGraham29 min
Jun 27, 11:59 PM CDTSevere Thunderstorm WarningGLDGove, Logan, Sheridan, Thomas46 min
Jun 28, 12:26 AM CDTSevere Thunderstorm WarningGLDGove19 min
Jun 28, 12:49 AM CDTSpecial Weather StatementGLDGove26 min
Jun 27, 8:28 PM CDTSpecial Weather StatementGLDCheyenne32 min

Nearby

Special Weather Statements in Kansas, 2017Every special weather statement 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.