Alert archive / Mississippi / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 209, NWS Jackson, MS

May 17, 2020Kemper County, Lauderdale County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 17, 2020, 3:22 PM CDT for Kemper County, Lauderdale County, Mississippi. It was in force for 23 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: May 17, 2020, 3:22 PM CDT (20:22 UTC)
Expired: May 17, 2020, 3:45 PM CDT
In force: 23 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Kemper County, MS, Lauderdale County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 129 km from the middle of the area, began a volume at 20:20 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

Birmingham, AL (KBMX), launched 12:00Z, 8.4 hours before the alert went out and 187 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: 9 J/kg
Mixed-layer CIN: -205 J/kg
Mixed-layer LCL: 1173 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 130 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Jackson, MS wrote its last area forecast discussion before this severe thunderstorm warning went out at May 17, 2:27 PM CDT, 55 minutes earlier.

Area forecast discussion, May 17, 2:27 PM CDT, 55 minutes before

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Hazardous weather outlook, May 17, 11:53 AM CDT, 3 hours 29 minutes before

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In the hours before

Special weather statement, May 17, 2:00 PM CDT, 1 hour 22 minutes before

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Special weather statement, May 17, 2:10 PM CDT, 1 hour 12 minutes before

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Special weather statement, May 17, 2:24 PM CDT, 58 minutes before

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Special weather statement, May 17, 2:42 PM CDT, 40 minutes before

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Special weather statement, May 17, 2:51 PM CDT, 31 minutes before

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Special weather statement, May 17, 3:07 PM CDT, 15 minutes before

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The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 17, 11:48 AM CDT	Special Weather Statement	JAN	Carroll	27 min
May 17, 11:51 AM CDT	Special Weather Statement	JAN	Warren	24 min
May 17, 1:03 PM CDT	Special Weather Statement	JAN	Lauderdale	57 min
May 17, 1:48 PM CDT	Special Weather Statement	JAN	Neshoba	27 min
May 17, 1:56 PM CDT	Special Weather Statement	JAN	Yazoo	34 min
May 17, 2:00 PM CDT	Special Weather Statement	JAN	Copiah	30 min
May 17, 2:10 PM CDT	Special Weather Statement	JAN	Newton	35 min
May 17, 2:24 PM CDT	Special Weather Statement	JAN	Clarke	36 min
May 17, 2:42 PM CDT	Special Weather Statement	JAN	Newton	33 min
May 17, 2:51 PM CDT	Special Weather Statement	JAN	Simpson	39 min
May 17, 3:07 PM CDT	Special Weather Statement	JAN	Lauderdale	23 min
May 17, 3:48 PM CDT	Special Weather Statement	JAN	Noxubee	27 min
May 17, 3:49 PM CDT	Special Weather Statement	JAN	Scott	26 min
May 17, 3:53 PM CDT	Special Weather Statement	JAN	Leake	37 min
May 17, 4:14 PM CDT	Special Weather Statement	JAN	Leake	31 min
May 17, 4:17 PM CDT	Special Weather Statement	JAN	Winston	28 min
May 17, 4:41 PM CDT	Special Weather Statement	JAN	Clarke	34 min
May 17, 4:47 PM CDT	Special Weather Statement	JAN	Lowndes	28 min
May 17, 5:00 PM CDT	Special Weather Statement	JAN	Neshoba	30 min
May 17, 5:13 PM CDT	Special Weather Statement	JAN	Lowndes	17 min
May 17, 5:23 PM CDT	Special Weather Statement	JAN	Choctaw, Webster	52 min
May 17, 5:29 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Webster	32 min
May 17, 5:34 PM CDT	Special Weather Statement	JAN	Winston	41 min
May 17, 6:00 PM CDT	Special Weather Statement	JAN	Neshoba	30 min
May 17, 6:18 PM CDT	Special Weather Statement	JAN	Winston	42 min
May 17, 6:28 PM CDT	Special Weather Statement	JAN	Oktibbeha	47 min
May 17, 6:58 PM CDT	Special Weather Statement	JAN	Clay	47 min
May 16, 7:20 PM CDT	Special Weather Statement	JAN	Ashley	40 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2020 Every severe thunderstorm warning in 2020

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.