Alert archive / Colorado / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 46, NWS Goodland, KS

May 21, 2008Cheyenne County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at May 21, 2008, 7:11 PM MDT for Cheyenne County, Colorado. It was in force for 79 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 21, 2008, 7:11 PM MDT (01:11 UTC)
Expired: May 21, 2008, 8:30 PM MDT
In force: 79 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon

County Cheyenne County, CO

The radar

The Goodland radar (KGLD), 98 km from the middle of the area, began a volume at 01:14 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 (KDNR), launched 00:00Z, 1.2 hours before the alert went out and 128 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: 23 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 4811 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 64 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 21, 5:36 PM MDT, 1 hour 35 minutes earlier.

Area forecast discussion, May 21, 5:36 PM MDT, 1 hour 35 minutes before

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Hazardous weather outlook, May 21, 4:15 PM MDT, 2 hours 56 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GOODLAND KS
415 PM MDT WED MAY 21 2008

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-222045-
YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE KS-RAWLINS-DECATUR-NORTON-
SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-GREELEY-WICHITA-
DUNDY-HITCHCOCK-RED WILLOW-
415 PM MDT WED MAY 21 2008 /515 PM CDT WED MAY 21 2008/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHWEST
NEBRASKA...NORTHWEST KANSAS AND EAST CENTRAL COLORADO.

.DAY ONE...TONIGHT

SOME THUNDERSTORMS WILL CONTINUE TO BECOME SEVERE THIS EVENING OVER
PORTIONS OF EXTREME EAST CENTRAL COLORADO...EXTREME SOUTHWEST
NEBRASKA...AND NORTHWEST KANSAS. OUTSIDE OF THUNDERSTORM AREAS...
STRONG SOUTHERLY WINDS WILL CONTINUE THROUGH EARLY THIS EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

ON THURSDAY...SCATTERED TO NUMEROUS THUNDERSTORMS WILL DEVELOP OVER THE
REGION DURING THE AFTERNOON AND EVENING HOURS. MANY OF THESE
THUNDERSTORMS WILL BECOME SEVERE WITH LARGE HAIL...DAMAGING WINDS...
AND SOME TORNADOES.

STRONG SOUTHERLY WINDS WILL ONCE AGAIN DEVELOP ACROSS MOST OF THE
WESTERN PORTION OF THE AREA. WINDS OF 30 TO 50 MPH WITH GUSTS TO
60 MPH WILL BE POSSIBLE OVER THE AREA. THESE STRONG WINDS WILL
OCCUR OUTSIDE THE THUNDERSTORM AREA. THESE WINDS WILL COMBINE WITH
LOW RELATIVE HUMIDITIES TO CAUSE EXTREME FIRE DANGER OVER THE
WESTERN PORTION OF THE AREA.

ADDITIONAL CRITICAL FIRE WEATHER CONDITIONS AND SEVERE THUNDERSTORMS
WILL BE POSSIBLE FROM FRIDAY INTO SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED TONIGHT AND AGAIN ON THURSDAY.

BULLER

In the hours before

Local storm report, May 21, 5:10 PM MDT, 2 hours 1 minute before

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Local storm report, May 21, 5:17 PM MDT, 1 hour 54 minutes before

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Local storm report, May 21, 5:47 PM MDT, 1 hour 24 minutes before

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Local storm report, May 21, 5:50 PM MDT, 1 hour 21 minutes before

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Local storm report, May 21, 6:55 PM MDT, 16 minutes before

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Local storm report, May 21, 6:58 PM MDT, 13 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 1:57 PM MDT	Severe Thunderstorm Warning	GLD	Sherman	63 min
May 22, 1:58 PM MDT	Severe Thunderstorm Warning	GLD	Gove, Logan	62 min
May 22, 2:07 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	53 min
May 22, 2:15 PM MDT	Tornado Warning	GLD	Gove, Logan	34 min
May 22, 2:19 PM MDT	Severe Thunderstorm Warning	GLD	Rawlins	56 min
May 22, 2:37 PM MDT	Severe Thunderstorm Warning	GLD	Gove	38 min
May 22, 2:42 PM MDT	Tornado Warning	GLD	Gove	48 min
May 22, 2:49 PM MDT	Tornado Warning	GLD	Cheyenne	16 min
May 22, 2:56 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Rawlins, Sherman, Thomas	64 min
May 22, 3:08 PM MDT	Tornado Warning	GLD	Sheridan	67 min
May 22, 3:20 PM MDT	Tornado Warning	GLD	Cheyenne, Rawlins	55 min
May 22, 3:29 PM MDT	Severe Thunderstorm Warning	GLD	Logan	61 min
May 22, 3:43 PM MDT	Tornado Warning	GLD	Cheyenne, Rawlins	47 min
May 22, 3:45 PM MDT	Severe Thunderstorm Warning	GLD	Gove	60 min
May 22, 3:56 PM MDT	Severe Thunderstorm Warning	GLD	Gove, Logan, Sheridan, Thomas	64 min
May 22, 4:03 PM MDT	Severe Thunderstorm Warning	GLD	Decatur, Rawlins	57 min
May 22, 4:09 PM MDT	Severe Thunderstorm Warning	GLD	Decatur, Norton	34 min
May 22, 4:10 PM MDT	Tornado Warning	GLD	Decatur, Rawlins, Sheridan	65 min
May 22, 4:11 PM MDT	Severe Thunderstorm Warning	GLD	Graham, Norton	62 min
May 22, 4:16 PM MDT	Tornado Warning	GLD	Gove, Sheridan	59 min
May 22, 4:18 PM MDT	Tornado Warning	GLD	Sheridan, Thomas	42 min
May 22, 4:29 PM MDT	Tornado Warning	GLD	Norton	43 min
May 22, 4:42 PM MDT	Tornado Warning	GLD	Gove	48 min
May 22, 4:47 PM MDT	Tornado Warning	GLD	Decatur, Rawlins	50 min
May 22, 5:00 PM MDT	Tornado Warning	GLD	Decatur, Sheridan	60 min
May 22, 5:18 PM MDT	Tornado Warning	GLD	Gove	57 min
May 22, 5:30 PM MDT	Tornado Warning	GLD	Gove, Graham, Sheridan	60 min
May 22, 5:34 PM MDT	Tornado Warning	GLD	Decatur	41 min
May 21, 6:17 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	58 min
May 21, 7:09 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson, Yuma	66 min
May 21, 8:09 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson, Yuma	66 min
May 21, 8:34 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	34 min
May 22, 1:42 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	44 min
May 22, 5:15 PM MDT	Severe Thunderstorm Warning	GLD	Red Willow	15 min
May 22, 5:28 PM MDT	Tornado Warning	GLD	Red Willow	62 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2008 Every severe thunderstorm warning in 2008

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.