Alert archive / Kansas / Special Weather Statements in 2011

Special Weather Statement, NWS Goodland, KS

July 20, 2011Greeley County, Kansas

NWS Goodland, KS issued this special weather statement at Jul 20, 2011, 9:30 PM MDT for Greeley County, Kansas. It was in force for 30 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 20, 2011, 9:30 PM MDT (03:30 UTC)
Expired: Jul 20, 2011, 10:00 PM MDT
In force: 30 min
Issued by: NWS Goodland, KS

County Greeley County, KS

The radar

The Goodland radar (KGLD), 100 km from the middle of the area, began a volume at 03:33 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, 3.5 hours before the alert went out and 183 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: 653 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 2654 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: -42 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.2

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 Jul 20, 2:55 PM MDT, 6 hours 35 minutes earlier.

Area forecast discussion, Jul 20, 2:55 PM MDT, 6 hours 35 minutes before

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</head>
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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Jul 20, 5:18 AM MDT, 16 hours 12 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GOODLAND KS
518 AM MDT WED JUL 20 2011

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-211200-
YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE KS-RAWLINS-DECATUR-NORTON-
SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-GREELEY-WICHITA-
DUNDY-HITCHCOCK-RED WILLOW-
518 AM MDT WED JUL 20 2011 /618 AM CDT WED JUL 20 2011/

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

.DAY ONE...TODAY AND TONIGHT

FOR TODAY...HOT TEMPERATURES WILL CONTINUE ACROSS MUCH OF THE AREA.
HIGH TEMPERATURES AROUND 100 DEGREES OR HIGHER WILL BE COMMON IN
SEVERAL AREAS...WITH HEAT INDEX VALUES AROUND 105. AN EXCESSIVE HEAT
WARNING REMAINS IN EFFECT EAST OF A TRENTON TO HOXIE LINE INTO
THIS EVENING.

A COLD FRONT WILL MOVE THROUGH THE AREA THROUGH TONIGHT. THERE WILL
BE A CHANCE OF THUNDERSTORMS THROUGH THE EARLY MORNING HOURS ALONG
AND BEHIND THIS FRONT. A FEW OF THESE STORMS COULD BECOME SEVERE
WITH DAMAGING WINDS BEING THE MAIN THREAT. THE MORE WIDESPREAD
THREAT WILL BE VERY HEAVY RAINFALL WITHIN A SHORT PERIOD OF TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A CHANCE OF THUNDERSTORMS WILL EXIST INTO THE WEEKEND. ON THURSDAY
AND THURSDAY NIGHT...A FEW OF THESE STORMS COULD BECOME SEVERE AND
ALSO PRODUCE VERY HEAVY RAINFALL.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND TONIGHT.

BULLER

In the hours before

Special weather statement, Jul 20, 9:30 PM MDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
930 PM MDT WED JUL 20 2011

COZ092-KSZ041-210400-
CHEYENNE COUNTY-GREELEY-
930 PM MDT WED JUL 20 2011

...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY FOR CHEYENNE COUNTY IN EAST CENTRAL COLORADO AND
GREELEY COUNTY IN WEST CENTRAL KANSAS...

AT 923 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 11 MILES NORTHEAST
OF SHERIDAN LAKE TO 38 MILES SOUTHWEST OF LYDIA...MOVING EAST AT 15
MPH.

AT 927 PM MDT SYRACUSE AIRPORT CONTINUED TO REPORT GUSTS UP TO 50 MPH.

BE PREPARED TO TAKE SHELTER IN THE EVENT THESE STORMS INTENSIFY AND
BECOME SEVERE.

&&

LAT...LON 3826 10204 3827 10205 3861 10205 3861 10230
      3868 10236 3875 10205 3870 10204 3870 10190
      3826 10156
TIME...MOT...LOC 0329Z 256DEG 12KT 3859 10213 3779 10158

JLUNDQUI

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 11:24 PM MDT	Special Weather Statement	GLD	Greeley, Logan, Rawlins, Sheridan, Sherman, Thomas and 2 more	36 min
Jul 20, 11:54 PM MDT	Special Weather Statement	GLD	Greeley, Logan, Thomas, Wallace, Wichita	36 min
Jul 21, 12:04 AM MDT	Severe Thunderstorm Warning	GLD	Greeley	26 min
Jul 21, 12:16 AM MDT	Flash Flood Warning	GLD	Greeley, Logan, Thomas, Wallace	3 hr
Jul 21, 5:42 PM MDT	Special Weather Statement	GLD	Wichita	33 min
Jul 21, 5:57 PM MDT	Severe Thunderstorm Warning	GLD	Wichita	53 min

Nearby

Special Weather Statements in Kansas, 2011 Every special weather statement in 2011

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.