Alert archive / Kansas / Heat Advisories in 2017

Heat Advisory 3, NWS Goodland, KS

July 18, 20175 counties in Kansas; Dundy County, Hitchcock County, Red Willow County, Nebraska

NWS Goodland, KS issued this heat advisory at Jul 18, 2017, 2:58 PM CDT for 5 counties in Kansas; Dundy County, Hitchcock County, Red Willow County, Nebraska. It took effect at Jul 19, 2017, 1:00 PM CDT. It was in force for 55 hr.

The area

The counties it named.

The facts

Issued
Jul 18, 2017, 2:58 PM CDT (19:58 UTC)
In effect from
Jul 19, 2017, 1:00 PM CDT
Expired
Jul 21, 2017, 8:00 PM CDT
In force
55 hr
Issued by
NWS Goodland, KS

Counties Decatur County, KS, Graham County, KS, Norton County, KS, Rawlins County, KS, Sheridan County, KS, Dundy County, NE, Hitchcock County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 105 km from the middle of the area, began a volume at 19:56 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.0 hours before the alert went out and 145 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 12:00Z on 2017-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 167 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 12:00Z on 2017-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 238 square meters per square second.1939Sfc1 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
167 J/kg
Mixed-layer CIN
-431 J/kg
Mixed-layer LCL
981 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
238 m²/s²
0-3 km storm-relative helicity
275 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 heat advisory 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 heat advisory went out at Jul 18, 2:35 PM CDT, 23 minutes earlier.

Area forecast discussion, Jul 18, 2:35 PM CDT, 23 minutes before
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Hazardous weather outlook, Jul 18, 11:40 AM CDT, 3 hours 18 minutes before
Hazardous Weather Outlook
National Weather Service Goodland KS
1040 AM MDT Tue Jul 18 2017

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-191645-
Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins-
Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove-
Greeley-Wichita-Dundy-Hitchcock-Red Willow-
1040 AM MDT Tue Jul 18 2017 /1140 AM CDT Tue Jul 18 2017/

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

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

A few severe thunderstorms may develop late this afternoon through
the early evening across northeast Colorado and southwest Nebraska.
Threats include large hail and damaging wind.

Heat index values around 105 degrees are possible across portions of
the central high plains east of a line from Benkelman, Nebraska to
Oakley, Kansas this afternoon.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH TUESDAY...

High Temperatures and Heat Index values in the lower 100s are
possible each afternoon from Wednesday through Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required after 2 PM MDT (3 PM CDT) through
8 PM MDT (9 PM CDT).

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 7:18 PM CDTSpecial Weather StatementGLDNorton12 min
Jul 17, 9:04 PM CDTSpecial Weather StatementGLDNorton26 min
Jul 17, 9:11 PM CDTSevere Thunderstorm WarningGLDNorton34 min
Jul 17, 9:52 PM CDTSpecial Weather StatementGLDNorton8 min
Jul 17, 10:01 PM CDTSpecial Weather StatementGLDNorton14 min
Jul 17, 10:12 PM CDTSpecial Weather StatementGLDGraham18 min
Jul 17, 10:14 PM CDTSpecial Weather StatementGLDNorton16 min
Jul 17, 10:29 PM CDTSpecial Weather StatementGLDGraham16 min
Jul 17, 10:41 PM CDTSevere Thunderstorm WarningGLDGraham, Norton29 min
Jul 17, 11:46 PM CDTSpecial Weather StatementGLDNorton14 min
Jul 18, 12:01 AM CDTSpecial Weather StatementGLDNorton14 min
Jul 18, 12:24 AM CDTSpecial Weather StatementGLDNorton21 min
Jul 18, 12:43 AM CDTSpecial Weather StatementGLDNorton32 min
Jul 18, 6:21 PM CDTSpecial Weather StatementGLDCheyenne9 min
Jul 18, 6:32 PM CDTSpecial Weather StatementGLDCheyenne28 min
Jul 18, 6:51 PM CDTSevere Thunderstorm WarningGLDCheyenne39 min
Jul 18, 5:29 PM CDTSpecial Weather StatementGLDYuma16 min
Jul 18, 5:40 PM CDTSevere Thunderstorm WarningGLDYuma50 min
Jul 18, 6:11 PM CDTFlash Flood WarningGLDYuma3 hr
Jul 18, 6:28 PM CDTSpecial Weather StatementGLDYuma17 min
Jul 18, 6:39 PM CDTSevere Thunderstorm WarningGLDYuma31 min
Jul 18, 5:44 PM CDTSpecial Weather StatementGLDDundy16 min
Jul 18, 5:51 PM CDTSevere Thunderstorm WarningGLDDundy26 min

Nearby

Heat Advisories in Kansas, 2017Heat Advisories in Nebraska, 2017Every heat advisory 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.