Alert archive / Mississippi / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 143, NWS Memphis, TN

October 26, 20196 counties in Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Oct 26, 2019, 9:54 AM CDT for 6 counties in Mississippi. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Oct 26, 2019, 9:54 AM CDT (14:54 UTC)
Expired: Oct 26, 2019, 10:45 AM CDT
In force: 51 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Calhoun County, MS, Chickasaw County, MS, Lafayette County, MS, Lee County, MS, Pontotoc County, MS, Yalobusha County, MS

The radar

The Columbus AFB radar (KGWX), 84 km from the middle of the area, began a volume at 14:54 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

Jackson, MS (KJAN), launched 12:00Z, 2.9 hours before the alert went out and 217 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: 362 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 679 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 223 m²/s²
0-3 km storm-relative helicity: 375 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Oct 26, 6:31 AM CDT, 3 hours 23 minutes earlier.

Area forecast discussion, Oct 26, 6:31 AM CDT, 3 hours 23 minutes before

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Hazardous weather outlook, Oct 26, 6:32 AM CDT, 3 hours 22 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
Oct 26, 6:03 AM CDT	Wind Advisory	MEG	Alcorn, Benton, Calhoun, Chickasaw, Itawamba, Lafayette and 11 more	9 hr
Oct 26, 10:04 AM CDT	Areal Flood Advisory	MEG	DeSoto, Marshall, Tate, Tunica	3 hr
Oct 26, 10:35 AM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw, Lafayette, Lee, Pontotoc, Union and 1 more	40 min
Oct 26, 11:04 AM CDT	Severe Thunderstorm Warning	MEG	Benton, Calhoun, Chickasaw, Lafayette, Lee, Pontotoc and 3 more	41 min
Oct 26, 11:45 AM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Benton, Lee, Pontotoc, Prentiss, Tippah and 2 more	45 min
Oct 26, 12:28 PM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Benton, Prentiss, Tippah	47 min
Oct 26, 12:34 PM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Itawamba, Prentiss, Tishomingo	26 min
Oct 26, 12:55 PM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Prentiss, Tippah	50 min
Oct 26, 12:58 PM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Prentiss, Tishomingo	47 min
Oct 26, 10:24 AM CDT	River Flood Warning	MEG	Crockett, Dyer, Lauderdale	32 hr
Oct 26, 10:24 AM CDT	River Flood Warning	MEG	Fayette, Shelby	22 hr
Oct 26, 1:42 PM CDT	Severe Thunderstorm Warning	MEG	Benton, Carroll, Chester, Decatur, Hardin, Henderson and 2 more	48 min
Oct 26, 9:22 AM CDT	Areal Flood Advisory	MEG	Mississippi	6 hr

Nearby

Severe Thunderstorm Warnings in Mississippi, 2019 Every severe thunderstorm warning in 2019

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.