Alert archive / Mississippi / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 312, NWS Jackson, MS

June 22, 2020Clay County, Lowndes County, Oktibbeha County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jun 22, 2020, 1:51 PM CDT for Clay County, Lowndes County, Oktibbeha County, Mississippi. It was in force for 39 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: Jun 22, 2020, 1:51 PM CDT (18:51 UTC)
Expired: Jun 22, 2020, 2:30 PM CDT
In force: 39 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Clay County, MS, Lowndes County, MS, Oktibbeha County, MS

The radar

The Columbus AFB radar (KGWX), 54 km from the middle of the area, began a volume at 18:52 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, 6.9 hours before the alert went out and 182 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: -148 J/kg
Mixed-layer LCL: 1277 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 96 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 Jun 22, 1:03 PM CDT, 48 minutes earlier.

Area forecast discussion, Jun 22, 1:03 PM CDT, 48 minutes before

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Hazardous weather outlook, Jun 22, 4:58 AM CDT, 8 hours 53 minutes before

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In the hours before

Special weather statement, Jun 22, 9:51 AM CDT, 4 hours before

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Special weather statement, Jun 22, 10:16 AM CDT, 3 hours 35 minutes before

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Special weather statement, Jun 22, 11:01 AM CDT, 2 hours 50 minutes before

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Special weather statement, Jun 22, 12:11 PM CDT, 1 hour 40 minutes before

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Special weather statement, Jun 22, 1:24 PM CDT, 27 minutes before

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Special weather statement, Jun 22, 1:39 PM CDT, 12 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
Jun 21, 7:12 PM CDT	Severe Thunderstorm Warning	JAN	Madison, Yazoo	13 min
Jun 21, 7:14 PM CDT	Special Weather Statement	JAN	Hinds	31 min
Jun 21, 7:23 PM CDT	Special Weather Statement	JAN	Hinds	37 min
Jun 21, 7:29 PM CDT	Special Weather Statement	JAN	Leake, Madison	46 min
Jun 21, 7:33 PM CDT	Severe Thunderstorm Warning	JAN	Leake	42 min
Jun 21, 7:48 PM CDT	Flash Flood Warning	JAN	Attala, Leake, Neshoba, Winston	2 hr
Jun 21, 8:07 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison, Rankin	23 min
Jun 21, 8:14 PM CDT	Special Weather Statement	JAN	Scott	31 min
Jun 21, 8:28 PM CDT	Special Weather Statement	JAN	Rankin, Scott	47 min
Jun 22, 10:15 AM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Warren	45 min
Jun 22, 10:16 AM CDT	Special Weather Statement	JAN	Hinds	29 min
Jun 22, 11:01 AM CDT	Special Weather Statement	JAN	Warren	59 min
Jun 22, 12:11 PM CDT	Special Weather Statement	JAN	Leake	34 min
Jun 22, 1:24 PM CDT	Special Weather Statement	JAN	Clay	36 min
Jun 22, 1:39 PM CDT	Special Weather Statement	JAN	Lowndes	51 min
Jun 22, 6:28 PM CDT	Special Weather Statement	JAN	Bolivar	32 min
Jun 22, 9:46 AM CDT	Special Weather Statement	JAN	Madison	44 min
Jun 22, 9:51 AM CDT	Special Weather Statement	JAN	Madison	39 min
Jun 22, 4:21 AM CDT	Special Weather Statement	JAN	Ashley	39 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.