Alert archive / Kansas / Special Weather Statements in 2017

Special Weather Statement, NWS Goodland, KS

July 28, 2017Wallace County, Kansas

NWS Goodland, KS issued this special weather statement at Jul 28, 2017, 6:49 PM MDT for Wallace County, Kansas. It was in force for 11 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 28, 2017, 6:49 PM MDT (00:49 UTC)
Expired: Jul 28, 2017, 7:00 PM MDT
In force: 11 min
Issued by: NWS Goodland, KS

County Wallace County, KS

The radar

The Goodland radar (KGLD), 61 km from the middle of the area, began a volume at 00:51 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 (KDEN), launched 00:00Z, 0.8 hours before the alert went out and 154 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: 2171 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: -61 m²/s²
0-3 km storm-relative helicity: -78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 28, 5:27 PM MDT, 1 hour 22 minutes earlier.

Area forecast discussion, Jul 28, 5:27 PM MDT, 1 hour 22 minutes before

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Hazardous weather outlook, Jul 28, 2:36 PM MDT, 4 hours 13 minutes before

Hazardous Weather Outlook
National Weather Service Goodland KS
236 PM MDT Fri Jul 28 2017

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-292045-
Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins-
Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove-
Greeley-Wichita-Dundy-Hitchcock-Red Willow-
236 PM MDT Fri Jul 28 2017 /336 PM CDT Fri Jul 28 2017/

This hazardous weather outlook is for east central Colorado...
extreme southwest Nebraska and northwest Kansas.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

Scattered thunderstorms will develop across the area this afternoon
into the overnight hours. A few severe storms, producing large hail
and damaging winds, will be possible in northeast Colorado and
adjacent counties of northwest Kansas and southwest Nebraska. Locally
heavy rainfall and flash flooding is also possible.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH FRIDAY...

From Saturday into Sunday night, scattered to numerous thunderstorms
are expected. A few of these storms could become severe with large
hail and damaging winds the main threats.

The more concerning weather threat for Saturday through Sunday night will
be flash flooding. Slow moving thunderstorms producing very heavy
rainfall, potentially over the same areas repeatedly, may amplify
the flash flooding threat.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required.

In the hours before

Special weather statement, Jul 28, 4:22 PM MDT, 2 hours 27 minutes before

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Special weather statement, Jul 28, 4:43 PM MDT, 2 hours 6 minutes before

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Special weather statement, Jul 28, 5:57 PM MDT, 52 minutes before

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Special weather statement, Jul 28, 6:09 PM MDT, 40 minutes before

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Special weather statement, Jul 28, 6:23 PM MDT, 26 minutes before

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Special weather statement, Jul 28, 6:49 PM MDT, 0 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
Jul 28, 6:09 PM MDT	Special Weather Statement	GLD	Cheyenne	21 min
Jul 28, 6:23 PM MDT	Special Weather Statement	GLD	Wallace	22 min
Jul 28, 7:18 PM MDT	Special Weather Statement	GLD	Greeley	27 min
Jul 28, 7:51 PM MDT	Special Weather Statement	GLD	Greeley, Logan	24 min
Jul 28, 8:30 PM MDT	Special Weather Statement	GLD	Greeley	60 min
Jul 29, 3:52 AM MDT	Flash Flood Watch	GLD	Greeley, Logan, Sherman, Wallace, Wichita	26 hr
Jul 29, 3:09 PM MDT	Special Weather Statement	GLD	Hitchcock	36 min

Nearby

Special Weather Statements in Kansas, 2017 Every special weather statement in 2017

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.