Alert archive / Colorado / Special Weather Statements in 2013

Special Weather Statement, NWS Goodland, KS

August 6, 2013Yuma County, Colorado

NWS Goodland, KS issued this special weather statement at Aug 6, 2013, 9:34 PM MDT for Yuma County, Colorado. It was in force for 26 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: Aug 6, 2013, 9:34 PM MDT (03:34 UTC)
Expired: Aug 6, 2013, 10:00 PM MDT
In force: 26 min
Issued by: NWS Goodland, KS

County Yuma County, CO

The radar

The Goodland radar (KGLD), 108 km from the middle of the area, began a volume at 03:37 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, 3.6 hours before the alert went out and 87 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3159 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: -2 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 6, 7:48 PM MDT, 1 hour 46 minutes earlier.

Area forecast discussion, Aug 6, 7:48 PM MDT, 1 hour 46 minutes before

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Hazardous weather outlook, Aug 6, 3:02 PM MDT, 6 hours 32 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GOODLAND KS
302 PM MDT TUE AUG 6 2013

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-071230-
YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE KS-RAWLINS-DECATUR-NORTON-
SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-GREELEY-WICHITA-
DUNDY-HITCHCOCK-RED WILLOW-
302 PM MDT TUE AUG 6 2013 /402 PM CDT TUE AUG 6 2013/

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS
AFTERNOON AND CONTINUE INTO THE OVERNIGHT HOURS. THE BEST
THUNDERSTORM COVERAGE WILL BE EAST OF THE COLORADO BORDER. SOME
OF THESE STORMS COULD BECOME SEVERE THIS AFTERNOON AND EVENING
WITH LARGE HAIL AND DAMAGING WINDS THE MAIN THREATS.  HEAVY
RAINFALL FROM THE SLOW MOVING STORMS WILL LEAD TO AN INCREASED THREAT
FOR FLASH FLOODING THROUGH THE OVERNIGHT HOURS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

SCATTERED TO NUMEROUS THUNDERSTORMS WILL CONTINUE WEDNESDAY AND
THURSDAY. VERY HEAVY RAINFALL WILL BE THE MAIN THREAT WITH THESE
STORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED THIS AFTERNOON AND TONIGHT.

JTL

In the hours before

Local storm report, Aug 6, 5:00 PM MDT, 4 hours 34 minutes before

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Local storm report, Aug 6, 9:07 PM MDT, 27 minutes before

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Special weather statement, Aug 6, 9:34 PM MDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
934 PM MDT TUE AUG 6 2013

COZ090-070400-
YUMA COUNTY-
934 PM MDT TUE AUG 6 2013

...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY FOR YUMA COUNTY IN NORTHEAST COLORADO...

AT 933 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 6 MILES NORTHEAST OF ECKLEY...MOVING EAST AT 15
MPH.

PENNY TO NICKEL SIZE HAIL...AND WINDS TO 50 MPH ARE EXPECTED WITH
THIS STORM.

&&

LAT...LON 4032 10217 4009 10215 4009 10254 4027 10256
TIME...MOT...LOC 0334Z 265DEG 12KT 4018 10243

THEDE

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 10:49 PM MDT	Special Weather Statement	GLD	Cheyenne	26 min
Aug 6, 11:30 PM MDT	Special Weather Statement	GLD	Cheyenne	60 min
Aug 7, 1:46 AM MDT	Severe Thunderstorm Warning	GLD	Decatur, Norton	59 min
Aug 7, 1:56 AM MDT	Special Weather Statement	GLD	Wallace	49 min
Aug 7, 2:23 AM MDT	Flash Flood Warning	GLD	Logan, Wallace	4 hr
Aug 7, 2:38 AM MDT	Severe Thunderstorm Warning	GLD	Decatur, Graham, Norton, Sheridan	52 min
Aug 7, 3:01 AM MDT	Severe Thunderstorm Warning	GLD	Graham	59 min
Aug 7, 5:10 AM MDT	Flash Flood Watch	GLD	Gove, Greeley, Logan, Wallace, Wichita	37 hr
Aug 7, 4:19 PM MDT	Special Weather Statement	GLD	Rawlins	26 min
Aug 7, 4:53 PM MDT	Flash Flood Warning	GLD	Rawlins	3 hr
Aug 6, 10:00 PM MDT	Special Weather Statement	GLD	Yuma	30 min
Aug 6, 10:19 PM MDT	Special Weather Statement	GLD	Yuma	26 min
Aug 6, 10:25 PM MDT	Special Weather Statement	GLD	Dundy	35 min
Aug 7, 1:13 AM MDT	Special Weather Statement	GLD	Red Willow	47 min

Nearby

Special Weather Statements in Colorado, 2013 Every special weather statement in 2013

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.