Alert archive / Nebraska / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 268, NWS Goodland, KS

August 14, 2017Red Willow County, Nebraska

NWS Goodland, KS issued this severe thunderstorm warning at Aug 14, 2017, 12:41 AM CDT for Red Willow County, Nebraska. It was in force for 34 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
Aug 14, 2017, 12:41 AM CDT (05:41 UTC)
Expired
Aug 14, 2017, 1:15 AM CDT
In force
34 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Hail
1.25 in
Wind
70.0 mph

County Red Willow County, NE

The radar

The Goodland radar (KGLD), 138 km from the middle of the area, began a volume at 05:41 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.

IssuedProductOfficeLasted
Aug 13, 4:00 PM CDTSevere Thunderstorm WatchSPC11 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 5.7 hours before the alert went out and 107 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 00:00Z on 2017-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1439 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 00:00Z on 2017-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1439 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
1852 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.1
Supercell composite
3.0

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 Aug 14, 12:12 AM CDT, 29 minutes earlier.

Area forecast discussion, Aug 14, 12:12 AM CDT, 29 minutes before
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Hazardous weather outlook, Aug 13, 3:48 PM CDT, 8 hours 53 minutes before
Hazardous Weather Outlook
National Weather Service Goodland KS
248 PM MDT Sun Aug 13 2017

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-142100-
Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins-
Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove-
Greeley-Wichita-Dundy-Hitchcock-Red Willow-
248 PM MDT Sun Aug 13 2017 /348 PM CDT Sun Aug 13 2017/

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

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

Scattered strong to severe storms will develop and move across the
region from late this afternoon through evening. The main threat
will be very large hail in addition to damaging winds. Locally heavy
rainfall could also lead to areas of flooding.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SUNDAY...

Patchy early morning fog is possible again across the area on
Monday.

An active pattern will continue with isolated to scattered
thunderstorms expected each day through the forecast period. The
next best chance for severe thunderstorms will be Tuesday afternoon
into Tuesday night. Large hail, damaging winds, and a few brief
tornadoes will be possible. Heavy rainfall can also be expected with
any strong storms that form, which may lead to flash flooding in
areas that are already saturated.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required.

In the hours before

Special weather statement, Aug 13, 8:43 PM CDT, 3 hours 58 minutes before
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Local storm report, Aug 13, 8:56 PM CDT, 3 hours 45 minutes before
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Special weather statement, Aug 13, 9:22 PM CDT, 3 hours 19 minutes before
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Special weather statement, Aug 13, 9:36 PM CDT, 3 hours 5 minutes before
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Special weather statement, Aug 13, 9:43 PM CDT, 2 hours 58 minutes before
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Special weather statement, Aug 14, 12:37 AM CDT, 4 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 8:04 PM CDTSpecial Weather StatementGLDWallace26 min
Aug 13, 8:28 PM CDTSevere Thunderstorm WarningGLDSherman, Wallace47 min
Aug 13, 9:36 PM CDTSpecial Weather StatementGLDNorton24 min
Aug 13, 9:43 PM CDTSpecial Weather StatementGLDGreeley, Logan, Wichita62 min
Aug 14, 1:55 AM CDTSpecial Weather StatementGLDNorton35 min
Aug 14, 4:04 PM CDTSpecial Weather StatementGLDRawlins26 min
Aug 14, 4:18 PM CDTSevere Thunderstorm WarningGLDCheyenne, Rawlins27 min
Aug 14, 4:42 PM CDTSevere Thunderstorm WarningGLDCheyenne, Rawlins48 min
Aug 14, 5:14 PM CDTSevere Thunderstorm WarningGLDCheyenne, Rawlins46 min
Aug 14, 5:31 PM CDTFlash Flood WarningGLDCheyenne, Rawlins3 hr
Aug 14, 5:36 PM CDTSpecial Weather StatementGLDCheyenne9 min
Aug 14, 5:44 PM CDTSevere Thunderstorm WarningGLDCheyenne, Sherman46 min
Aug 14, 5:53 PM CDTSevere Thunderstorm WarningGLDCheyenne30 min
Aug 14, 6:22 PM CDTSevere Thunderstorm WarningGLDCheyenne, Sherman53 min
Aug 14, 6:58 PM CDTSpecial Weather StatementGLDCheyenne17 min
Aug 13, 7:04 PM CDTSpecial Weather StatementGLDKit Carson26 min
Aug 13, 7:37 PM CDTSpecial Weather StatementGLDKit Carson23 min
Aug 13, 7:43 PM CDTSevere Thunderstorm WarningGLDKit Carson, Yuma47 min
Aug 13, 7:57 PM CDTSpecial Weather StatementGLDKit Carson33 min
Aug 13, 8:43 PM CDTSpecial Weather StatementGLDCheyenne32 min
Aug 13, 9:22 PM CDTSpecial Weather StatementGLDLincoln23 min
Aug 14, 12:37 AM CDTSpecial Weather StatementGLDRed Willow23 min
Aug 14, 1:16 AM CDTSpecial Weather StatementGLDRed Willow29 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2017Every severe thunderstorm warning 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.