Alert archive / Kansas / Heat Advisories in 2011

Heat Advisory 7, NWS Wichita, KS

August 17, 201124 counties in Kansas

NWS Wichita, KS issued this heat advisory at Aug 17, 2011, 2:49 PM CDT for 24 counties in Kansas. It took effect at Aug 18, 2011, 1:00 PM CDT. It was in force for 31 hr.

The area

The counties it named.

The facts

Issued: Aug 17, 2011, 2:49 PM CDT (19:49 UTC)
In effect from: Aug 18, 2011, 1:00 PM CDT
Expired: Aug 19, 2011, 7:35 PM CDT
In force: 31 hr
Issued by: NWS Wichita, KS

All 24 counties

Allen County, KS, Barton County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Cowley County, KS, Elk County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Kingman County, KS, Labette County, KS, Marion County, KS, McPherson County, KS, Montgomery County, KS, Neosho County, KS, Reno County, KS, Rice County, KS, Russell County, KS, Saline County, KS, Sedgwick County, KS, Sumner County, KS, Wilson County, KS, Woodson County, KS

The radar

The Wichita radar (KICT), 47 km from the middle of the area, began a volume at 19:53 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

Lamont, OK (KLMN), launched 12:00Z, 7.8 hours before the alert went out and 143 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: 266 J/kg
Mixed-layer CIN: -320 J/kg
Mixed-layer LCL: 1829 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -45 m²/s²
0-3 km storm-relative helicity: -11 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 Wichita, KS wrote its last area forecast discussion before this heat advisory went out at Aug 17, 12:33 PM CDT, 2 hours 16 minutes earlier.

Area forecast discussion, Aug 17, 12:33 PM CDT, 2 hours 16 minutes before

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Hazardous weather outlook, Aug 17, 4:53 AM CDT, 9 hours 56 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 17, 6:14 PM CDT	Severe Thunderstorm Warning	ICT	Harper, Kingman, Sedgwick, Sumner	61 min
Aug 17, 6:51 PM CDT	Severe Thunderstorm Warning	ICT	Sedgwick, Sumner	54 min

Nearby

Heat Advisories in Kansas, 2011 Every heat advisory 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.