Alert archive / Missouri / Heat Advisories in 2011

Heat Advisory 3, NWS Kansas City, MO

July 8, 201137 counties in Missouri; 7 counties in Kansas

NWS Kansas City, MO issued this heat advisory at Jul 8, 2011, 3:49 PM CDT for 37 counties in Missouri; 7 counties in Kansas. It took effect at Jul 10, 2011, 12:00 PM CDT. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued: Jul 8, 2011, 3:49 PM CDT (20:49 UTC)
In effect from: Jul 10, 2011, 12:00 PM CDT
Expired: Jul 11, 2011, 4:11 AM CDT
In force: 16 hr
Issued by: NWS Kansas City, MO

All 44 counties

Atchison County, KS, Doniphan County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Wyandotte County, KS, Adair County, MO, Andrew County, MO, Atchison County, MO, Bates County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Cooper County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Holt County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Mercer County, MO, Nodaway County, MO, Pettis County, MO, Platte County, MO, Putnam County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, Schuyler County, MO, Sullivan County, MO, Worth County, MO

The radar

The Pleasant Hill radar (KEAX), 84 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

Springfield, MO (KSGF), launched 12:00Z, 8.8 hours before the alert went out and 294 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: 38 J/kg
Mixed-layer CIN: -185 J/kg
Mixed-layer LCL: 632 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 49 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 Kansas City, MO wrote its last area forecast discussion before this heat advisory went out at Jul 7, 6:24 PM CDT, 21 hours 25 minutes earlier.

Area forecast discussion, Jul 7, 6:24 PM CDT, 21 hours 25 minutes before

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Hazardous weather outlook, Jul 7, 6:28 PM CDT, 21 hours 21 minutes before

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Nearby

Heat Advisories in Missouri, 2011 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.