Alert archive / Mississippi / Heat Advisories in 2016

Heat Advisory 4, NWS Memphis, TN

June 25, 201621 counties in Tennessee; 22 counties in Mississippi; Crittenden County, Mississippi County, Arkansas

NWS Memphis, TN issued this heat advisory at Jun 25, 2016, 10:36 AM CDT for 21 counties in Tennessee; 22 counties in Mississippi; Crittenden County, Mississippi County, Arkansas. It was in force for 32 hr.

The area

The counties it named.

The facts

Issued: Jun 25, 2016, 10:36 AM CDT (15:36 UTC)
Expired: Jun 26, 2016, 7:00 PM CDT
In force: 32 hr
Issued by: NWS Memphis, TN

All 45 counties

Crittenden County, AR, Mississippi County, AR, Alcorn County, MS, Benton County, MS, Calhoun County, MS, Chickasaw County, MS, Coahoma County, MS, DeSoto County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Marshall County, MS, Monroe County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Yalobusha County, MS, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN

The radar

The Memphis radar (KNQA), 70 km from the middle of the area, began a volume at 15:36 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

Nashville Metro, TN (KBNA), launched 12:00Z, 3.6 hours before the alert went out and 261 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: 132 J/kg
Mixed-layer CIN: -252 J/kg
Mixed-layer LCL: 1386 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 21 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 Memphis, TN wrote its last area forecast discussion before this heat advisory went out at Jun 24, 6:05 PM CDT, 16 hours 31 minutes earlier.

Area forecast discussion, Jun 24, 6:05 PM CDT, 16 hours 31 minutes before

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The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 25, 1:37 PM CDT	Special Weather Statement	MEG	Weakley	23 min

Nearby

Heat Advisories in Mississippi, 2016 Heat Advisories in Tennessee, 2016 Heat Advisories in Arkansas, 2016 Every heat advisory in 2016

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.