Alert archive / Colorado / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 310, NWS Goodland, KS

July 26, 2018Cheyenne County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at Jul 26, 2018, 6:25 PM MDT for Cheyenne County, Colorado. It was in force for 12 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 26, 2018, 6:25 PM MDT (00:25 UTC)
Expired
Jul 26, 2018, 6:37 PM MDT
In force
12 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Cheyenne County, CO

The radar

The Goodland radar (KGLD), 121 km from the middle of the area, began a volume at 00:27 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
Jul 26, 1:49 PM MDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 0.4 hours before the alert went out and 136 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 2018-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 130 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, Denver, CO at 00:00Z on 2018-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.19395878Sfc1 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
130 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
2250 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted.

316 
WUUS53 KGLD 270025
SVRGLD
COC017-270115-
/O.NEW.KGLD.SV.W.0310.180727T0025Z-180727T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
625 PM MDT THU JUL 26 2018

The National Weather Service in Goodland has issued a

* Severe Thunderstorm Warning for...
  South central Cheyenne County in east central Colorado...

* Until 715 PM MDT.

* At 625 PM MDT, a severe thunderstorm was located 6 miles south of
  Kit Carson, or 25 miles southwest of Cheyenne Wells, moving south
  at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will remain over mainly rural areas of
  south central Cheyenne County in east central Colorado.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3875 10289 3874 10266 3861 10265 3862 10291
TIME...MOT...LOC 0025Z 002DEG 21KT 3868 10278 

HAIL...1.00IN
WIND...60MPH
 
$$

JN
1 follow-up statement
775 
WWUS53 KGLD 270037
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
637 PM MDT THU JUL 26 2018

COC017-270047-
/O.CAN.KGLD.SV.W.0310.000000T0000Z-180727T0115Z/
Cheyenne CO-
637 PM MDT THU JUL 26 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL CHEYENNE COUNTY
IN EAST CENTRAL COLORADO IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 900 PM MDT for
east central Colorado.

LAT...LON 3875 10289 3874 10266 3861 10265 3862 10291
TIME...MOT...LOC 0035Z 002DEG 21KT 3861 10278 

$$

JN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 6:01 PM MDTFlash Flood WarningGLDKit Carson3 hr
Jul 26, 6:05 PM MDTSevere Thunderstorm WarningGLDCheyenne, Kit Carson40 min
Jul 26, 6:10 PM MDTSevere Thunderstorm WarningGLDKit Carson35 min
Jul 26, 6:33 PM MDTSevere Thunderstorm WarningGLDCheyenne, Kit Carson42 min
Jul 26, 7:00 PM MDTSevere Thunderstorm WarningGLDCheyenne45 min
Jul 26, 7:11 PM MDTFlash Flood WarningGLDCheyenne3 hr
Jul 27, 2:33 PM MDTSevere Thunderstorm WarningGLDYuma42 min
Jul 27, 2:58 PM MDTSevere Thunderstorm WarningGLDYuma47 min
Jul 27, 3:23 PM MDTSevere Thunderstorm WarningGLDYuma52 min
Jul 27, 3:47 PM MDTSevere Thunderstorm WarningGLDYuma58 min
Jul 27, 3:50 PM MDTSevere Thunderstorm WarningGLDKit Carson40 min
Jul 27, 3:59 PM MDTTornado WarningGLDKit Carson13 min
Jul 27, 4:28 PM MDTSevere Thunderstorm WarningGLDKit Carson62 min
Jul 27, 4:37 PM MDTTornado WarningGLDKit Carson25 min
Jul 27, 5:12 PM MDTSpecial Weather StatementGLDKit Carson48 min
Jul 27, 5:21 PM MDTSevere Thunderstorm WarningGLDCheyenne, Kit Carson, Yuma54 min
Jul 27, 5:34 PM MDTFlash Flood WarningGLDKit Carson, Yuma3 hr

Nearby

Severe Thunderstorm Warnings in Colorado, 2018Every 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.