Alert archive / Colorado / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 43, NWS Goodland, KS

May 21, 2008Kit Carson County, Yuma County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at May 21, 2008, 5:42 PM MDT for Kit Carson County, Yuma County, Colorado. It was in force for 19 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, 5:42 PM MDT (23:42 UTC)
Expired: May 21, 2008, 6:01 PM MDT
In force: 19 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon

Counties Kit Carson County, CO, Yuma County, CO

The radar

The Goodland radar (KGLD), 77 km from the middle of the area, began a volume at 23:44 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 21, 2:46 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 11.7 hours before the alert went out and 66 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: 848 J/kg
Mixed-layer CIN: -262 J/kg
Mixed-layer LCL: 1951 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 110 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, 6 minutes earlier.

Area forecast discussion, May 21, 5:36 PM MDT, 6 minutes before

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Hazardous weather outlook, May 21, 4:15 PM MDT, 1 hour 27 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, 4:41 PM MDT, 1 hour 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
441 PM MDT WED MAY 21 2008

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

0430 PM     HAIL             9 S YUMA                39.99N 102.72W
05/21/2008  E1.00 INCH       YUMA               CO   PUBLIC

&&

SJOHNSON

Local storm report, May 21, 4:48 PM MDT, 54 minutes before

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Local storm report, May 21, 5:06 PM MDT, 36 minutes before

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Local storm report, May 21, 5:07 PM MDT, 35 minutes before

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Local storm report, May 21, 5:10 PM MDT, 32 minutes before

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Local storm report, May 21, 5:17 PM MDT, 25 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 21, 3:30 AM MDT	Fire Weather Watch	GLD	Cheyenne, Greeley, Logan, Rawlins, Sherman, Thomas and 2 more	12 hr
May 21, 3:49 PM MDT	Red Flag Warning	GLD	Cheyenne, Greeley, Logan, Sherman, Thomas, Wallace and 1 more	29 hr
May 21, 4:01 PM MDT	Wind Advisory	GLD	Cheyenne, Decatur, Gove, Graham, Greeley, Logan and 7 more	26 hr
May 21, 3:01 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson, Yuma	44 min
May 21, 3:35 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson, Yuma	40 min
May 21, 4:01 PM MDT	High Wind Warning	GLD	Cheyenne, Kit Carson, Yuma	26 hr
May 21, 4:10 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	65 min
May 21, 4:42 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	39 min
May 21, 5:13 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	37 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.