Alert archive / Colorado / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 33, NWS Goodland, KS

May 6, 2019Cheyenne County, Kit Carson County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at May 6, 2019, 8:33 PM MDT for Cheyenne County, Kit Carson County, Colorado. It was in force for 27 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: May 6, 2019, 8:33 PM MDT (02:33 UTC)
Expired: May 6, 2019, 9:00 PM MDT
In force: 27 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Cheyenne County, CO, Kit Carson County, CO

The radar

The Goodland radar (KGLD), 85 km from the middle of the area, began a volume at 02:36 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.

Issued	Product	Office	Lasted
May 6, 2:00 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 2.6 hours before the alert went out and 104 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: 167 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 2024 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 223 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 May 6, 6:51 PM MDT, 1 hour 42 minutes earlier.

Area forecast discussion, May 6, 6:51 PM MDT, 1 hour 42 minutes before

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Hazardous weather outlook, May 6, 6:54 PM MDT, 1 hour 39 minutes before

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In the hours before

Local storm report, May 6, 7:12 PM MDT, 1 hour 21 minutes before

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Local storm report, May 6, 7:15 PM MDT, 1 hour 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
715 PM MDT MON MAY 6 2019

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

0515 PM     DENSE FOG        3 N COLBY               39.43N 101.05W
05/06/2019                   THOMAS             KS   AWOS

            1/4 MILE VISIBILITY FROM DENSE FOG AT AWOS
            STATION KCBK 2 N COLBY.

&&

EV

Local storm report, May 6, 7:16 PM MDT, 1 hour 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
716 PM MDT MON MAY 6 2019

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

0415 PM     DENSE FOG        3 N COLBY               39.43N 101.05W
05/06/2019                   THOMAS             KS   AWOS

            1/4 MILE VISIBILITY FROM DENSE FOG. AWOS
            STATION KCBK 2 N COLBY.

&&

EV

Local storm report, May 6, 7:17 PM MDT, 1 hour 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
717 PM MDT MON MAY 6 2019

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

0425 PM     DENSE FOG        1 NNE GOODLAND          39.37N 101.70W
05/06/2019                   SHERMAN            KS   ASOS

            1/2 MILE VISIBILITY FROM DENSE FOG. ASOS
            STATION KGLD GOODLAND.

&&

EV

Local storm report, May 6, 7:18 PM MDT, 1 hour 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
718 PM MDT MON MAY 6 2019

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

0655 PM     DENSE FOG        2 ESE OAKLEY            39.12N 100.82W
05/06/2019                   LOGAN              KS   AWOS

            1/2 MILE VISIBILITY FROM DENSE FOG. AWOS
            STATION KOEL OAKLEY.

&&

EV

Special weather statement, May 6, 7:55 PM MDT, 38 minutes before

Special Weather Statement
National Weather Service Goodland KS
755 PM MDT Mon May 6 2019

COZ091-092-070230-
Kit Carson County CO-Cheyenne County CO-
755 PM MDT Mon May 6 2019

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN CHEYENNE AND SOUTHWESTERN
KIT CARSON COUNTIES IN EAST CENTRAL COLORADO UNTIL 830 PM MDT...

At 755 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 12 miles northwest of Flagler to 5 miles
southeast of Arriba to 4 miles northeast of Boyero to 16 miles
northeast of Karval. Movement was east at 30 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
these storms.

Locations impacted include...
Flagler, Seibert, Wild Horse and Aroya.

This includes Interstate 70 in Colorado between mile markers 391 and
410.

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

LAT...LON 3944 10315 3945 10290 3921 10272 3906 10269
      3891 10274 3869 10291 3875 10316
TIME...MOT...LOC 0155Z 276DEG 25KT 3937 10328 3925 10318 3911 10316
3896 10320 3886 10328

EV

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 9:33 PM MDT	Flash Flood Warning	GLD	Sherman	118 min
May 6, 9:53 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Sherman	39 min
May 7, 3:45 AM MDT	Dense Fog Advisory	GLD	Cheyenne, Greeley, Logan, Rawlins, Sherman, Thomas and 2 more	3 hr
May 7, 1:36 PM MDT	Dense Fog Advisory	GLD	Cheyenne, Decatur, Gove, Graham, Greeley, Logan and 7 more	19 hr
May 6, 7:55 PM MDT	Special Weather Statement	GLD	Kit Carson	35 min
May 6, 8:52 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	36 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2019 Every severe thunderstorm warning in 2019

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.