Alert archive / Colorado / Special Weather Statements in 2017

Special Weather Statement, NWS Goodland, KS

June 29, 2017Cheyenne County, Colorado

NWS Goodland, KS issued this special weather statement at Jun 29, 2017, 12:07 AM MDT for Cheyenne County, Colorado. It was in force for 53 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 29, 2017, 12:07 AM MDT (06:07 UTC)
Expired
Jun 29, 2017, 1:00 AM MDT
In force
53 min
Issued by
NWS Goodland, KS

County Cheyenne County, CO

The radar

The Goodland radar (KGLD), 86 km from the middle of the area, began a volume at 06:06 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

Denver, CO (KDEN), launched 00:00Z, 6.1 hours before the alert went out and 124 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, Denver, CO at 00:00Z on 2017-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 218 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2017-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 square meters per square second.1939587897Sfc1 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
218 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
3443 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

623 
WWUS83 KGLD 290607
SPSGLD

Special Weather Statement
National Weather Service Goodland KS
1207 AM MDT THU JUN 29 2017
 
COZ091-092-290700-
Kit Carson County CO-Cheyenne County CO-
1207 AM MDT THU JUN 29 2017

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL CHEYENNE AND SOUTHEASTERN
KIT CARSON COUNTIES IN EAST CENTRAL COLORADO UNTIL 100 AM MDT...

At 1207 AM MDT, Doppler radar was tracking a strong thunderstorm 15
miles northeast of Kit Carson, or 18 miles northwest of Cheyenne
Wells, moving east at 15 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Cheyenne Wells and Firstview. 

This includes Highway 385 between mile markers 139 and 180.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3872 10270 3926 10265 3920 10223 3865 10225
TIME...MOT...LOC 0607Z 272DEG 15KT 3895 10264 

$$

Lockhart

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 12:50 AM MDTSpecial Weather StatementGLDSherman, Wallace55 min
Jun 29, 1:10 AM MDTSevere Thunderstorm WarningGLDGreeley, Wallace50 min
Jun 29, 1:46 AM MDTSevere Thunderstorm WarningGLDGreeley, Logan, Wallace, Wichita44 min
Jun 29, 1:55 AM MDTSpecial Weather StatementGLDGove, Graham, Logan, Norton, Sheridan, Wichita65 min
Jun 29, 2:09 AM MDTSevere Thunderstorm WarningGLDSheridan, Thomas51 min
Jun 29, 2:20 AM MDTSevere Thunderstorm WarningGLDSheridan40 min
Jun 29, 2:26 AM MDTSevere Thunderstorm WarningGLDGove, Logan34 min
Jun 29, 2:32 AM MDTSevere Thunderstorm WarningGLDGraham, Norton43 min
Jun 29, 3:01 AM MDTSevere Thunderstorm WarningGLDDecatur, Gove, Graham, Norton, Sheridan, Thomas30 min
Jun 29, 3:05 AM MDTSevere Thunderstorm WarningGLDGraham, Norton26 min
Jun 29, 3:37 AM MDTSpecial Weather StatementGLDGraham53 min
Jun 29, 5:10 PM MDTSevere Thunderstorm WarningGLDSherman65 min
Jun 29, 5:47 PM MDTSevere Thunderstorm WarningGLDCheyenne, Rawlins, Sherman, Thomas58 min
Jun 28, 10:42 PM MDTTornado WarningGLDCheyenne, Kit Carson33 min
Jun 28, 11:10 PM MDTTornado WarningGLDCheyenne, Kit Carson14 min
Jun 28, 11:25 PM MDTSpecial Weather StatementGLDCheyenne65 min
Jun 28, 11:54 PM MDTSpecial Weather StatementGLDKit Carson66 min
Jun 29, 2:49 PM MDTSpecial Weather StatementGLDKit Carson11 min
Jun 29, 2:59 PM MDTSpecial Weather StatementGLDKit Carson16 min
Jun 29, 3:16 PM MDTSpecial Weather StatementGLDKit Carson14 min
Jun 29, 3:30 PM MDTSpecial Weather StatementGLDKit Carson15 min
Jun 29, 3:34 PM MDTSpecial Weather StatementGLDKit Carson11 min
Jun 29, 3:46 PM MDTSevere Thunderstorm WarningGLDKit Carson59 min
Jun 29, 3:57 PM MDTTornado WarningGLDKit Carson33 min
Jun 29, 5:25 PM MDTSpecial Weather StatementGLDCheyenne20 min
Jun 29, 5:59 PM MDTSpecial Weather StatementGLDCheyenne16 min

Nearby

Special Weather Statements in Colorado, 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.