Alert archive / Kansas / Heat Advisories in 2015

Heat Advisory 2, NWS Topeka, KS

June 21, 201520 counties in Kansas

NWS Topeka, KS issued this heat advisory at Jun 21, 2015, 3:53 PM CDT for 20 counties in Kansas. It took effect at Jun 22, 2015, 1:00 PM CDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Jun 21, 2015, 3:53 PM CDT (20:53 UTC)
In effect from: Jun 22, 2015, 1:00 PM CDT
Expired: Jun 22, 2015, 6:58 PM CDT
In force: 6 hr
Issued by: NWS Topeka, KS

Counties Brown County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Douglas County, KS, Franklin County, KS, Geary County, KS, Jackson County, KS, Jefferson County, KS, Lyon County, KS, Marshall County, KS, Morris County, KS, Nemaha County, KS, Osage County, KS, Ottawa County, KS, Pottawatomie County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS, Washington County, KS

The radar

The Topeka radar (KTWX), 22 km from the middle of the area, began a volume at 20:55 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

Topeka, KS (KFOE), launched 12:00Z, 8.9 hours before the alert went out and 64 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: 1785 J/kg
Mixed-layer CIN: -241 J/kg
Mixed-layer LCL: 1089 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 153 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 Topeka, KS wrote its last area forecast discussion before this heat advisory went out at Jun 21, 3:45 PM CDT, 8 minutes earlier.

Area forecast discussion, Jun 21, 3:45 PM CDT, 8 minutes before

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Hazardous weather outlook, Jun 21, 3:45 PM CDT, 8 minutes before

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In the hours before

Special weather statement, Jun 21, 1:13 PM CDT, 2 hours 40 minutes before

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Special weather statement, Jun 21, 1:42 PM CDT, 2 hours 11 minutes before

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Special weather statement, Jun 21, 1:57 PM CDT, 1 hour 56 minutes before

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Local storm report, Jun 21, 2:16 PM CDT, 1 hour 37 minutes before

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Special weather statement, Jun 21, 2:28 PM CDT, 1 hour 25 minutes before

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Special weather statement, Jun 21, 2:52 PM CDT, 1 hour 1 minute before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 10:17 AM CDT	Special Weather Statement	TOP	Nemaha	43 min
Jun 21, 10:43 AM CDT	Special Weather Statement	TOP	Brown	32 min
Jun 21, 10:56 AM CDT	Special Weather Statement	TOP	Marshall	34 min
Jun 21, 11:03 AM CDT	Severe Thunderstorm Warning	TOP	Marshall, Washington	27 min
Jun 21, 11:20 AM CDT	Special Weather Statement	TOP	Brown	25 min
Jun 21, 11:25 AM CDT	Severe Thunderstorm Warning	TOP	Marshall	50 min
Jun 21, 11:30 AM CDT	Severe Thunderstorm Warning	TOP	Brown, Nemaha	40 min
Jun 21, 11:54 AM CDT	Special Weather Statement	TOP	Brown	36 min
Jun 21, 12:12 PM CDT	Severe Thunderstorm Warning	TOP	Marshall, Nemaha	27 min
Jun 21, 1:13 PM CDT	Special Weather Statement	TOP	Nemaha	32 min
Jun 21, 1:42 PM CDT	Special Weather Statement	TOP	Brown	18 min
Jun 21, 1:47 PM CDT	Severe Thunderstorm Warning	TOP	Brown, Jackson	28 min
Jun 21, 1:57 PM CDT	Special Weather Statement	TOP	Pottawatomie, Wabaunsee	33 min
Jun 21, 2:28 PM CDT	Special Weather Statement	TOP	Shawnee	32 min
Jun 21, 2:52 PM CDT	Special Weather Statement	TOP	Douglas	38 min

Nearby

Heat Advisories in Kansas, 2015 Every heat advisory in 2015

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.