Alert archive / Mississippi / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 111, NWS Jackson, MS

April 8, 2020Clarke County, Lauderdale County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Apr 8, 2020, 3:50 PM CDT for Clarke County, Lauderdale County, Mississippi. It was in force for 40 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
Apr 8, 2020, 3:50 PM CDT (20:50 UTC)
Expired
Apr 8, 2020, 4:30 PM CDT
In force
40 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Hail
2.0 in
Wind
60.0 mph

Counties Clarke County, MS, Lauderdale County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 123 km from the middle of the area, began a volume at 20:49 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 8, 2:40 PM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 8.8 hours before the alert went out and 132 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-pSkew-T log-p diagram, Jackson, MS at 12:00Z on 2020-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 779 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2020-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
779 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
670 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.4
Supercell composite
1.7

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 Apr 8, 3:32 PM CDT, 18 minutes earlier.

Area forecast discussion, Apr 8, 3:32 PM CDT, 18 minutes before
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Hazardous weather outlook, Apr 8, 3:44 PM CDT, 6 minutes before
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In the hours before

Special weather statement, Apr 8, 2:24 PM CDT, 1 hour 26 minutes before
Special Weather Statement
National Weather Service Jackson MS
224 PM CDT Wed Apr 8 2020

MSZ045-046-052-082015-
Kemper MS-Lauderdale MS-Neshoba MS-
224 PM CDT Wed Apr 8 2020

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN KEMPER...SOUTHEASTERN
NESHOBA AND NORTHERN LAUDERDALE COUNTIES UNTIL 315 PM CDT...

At 222 PM CDT, Meteorologists were tracking a strong thunderstorm
over Herbert Springs, or 14 miles southeast of Philadelphia, moving
east at 50 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Martin and Damascus around 230 PM CDT.
  Liberty around 235 PM CDT.
  Prismatic and Blackwater around 240 PM CDT.
  Meridian Station and Daleville around 245 PM CDT.
  Lauderdale and Tamola around 255 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

High winds can bring down trees and large limbs resulting in serious
injury or property damage. Exercise extreme caution when outdoors
during such strong winds...and be especially aware of older trees.

&&

LAT...LON 3241 8841 3253 8892 3258 8892 3258 8903
      3269 8901 3270 8838
TIME...MOT...LOC 1922Z 277DEG 41KT 3261 8895

22
Special weather statement, Apr 8, 2:24 PM CDT, 1 hour 26 minutes before
Special Weather Statement
National Weather Service Jackson MS
224 PM CDT Wed Apr 8 2020

MSZ045-046-052-082015-
Kemper MS-Lauderdale MS-Neshoba MS-
224 PM CDT Wed Apr 8 2020

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN KEMPER...SOUTHEASTERN
NESHOBA AND NORTHERN LAUDERDALE COUNTIES UNTIL 315 PM CDT...

At 223 PM CDT, Meteorologists were tracking a strong thunderstorm
over Herbert Springs, or 15 miles southeast of Philadelphia, moving
east at 50 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Martin and Damascus around 230 PM CDT.
  Liberty around 235 PM CDT.
  Prismatic and Blackwater around 240 PM CDT.
  Meridian Station and Daleville around 245 PM CDT.
  Lauderdale and Tamola around 255 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

High winds can bring down trees and large limbs resulting in serious
injury or property damage. Exercise extreme caution when outdoors
during such strong winds...and be especially aware of older trees.

&&

LAT...LON 3241 8841 3255 8892 3258 8892 3258 8899
      3269 8901 3270 8838
TIME...MOT...LOC 1923Z 277DEG 41KT 3261 8893

22
Local storm report, Apr 8, 3:02 PM CDT, 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
302 PM CDT WED APR 8 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0216 PM     TSTM WND DMG     2 SW HOUSE              32.61N 89.03W
04/08/2020                   NESHOBA            MS   EMERGENCY MNGR

            MULTIPLE TREES DOWNED ALONG MS 492 BLOCKING
            THE ROAD BETWEEN HOUSE AND UNION.

&&

DL
Local storm report, Apr 8, 3:10 PM CDT, 40 minutes before
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Local storm report, Apr 8, 3:32 PM CDT, 18 minutes before
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Local storm report, Apr 8, 3:40 PM CDT, 10 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 7, 9:57 PM CDTRiver Flood WarningJANAttala, Holmes21 days
Apr 7, 9:59 PM CDTRiver Flood WarningJANCarroll, Leflore4 days
Apr 8, 11:24 AM CDTSpecial Weather StatementJANWashington36 min
Apr 8, 12:18 PM CDTSevere Thunderstorm WarningJANSharkey, Washington37 min
Apr 8, 12:28 PM CDTSpecial Weather StatementJANHolmes, Humphreys32 min
Apr 8, 2:24 PM CDTSpecial Weather StatementJANLauderdale51 min
Apr 8, 2:34 PM CDTSevere Thunderstorm WarningJANKemper, Lauderdale41 min
Apr 8, 3:03 PM CDTSevere Thunderstorm WarningJANLauderdale, Leake, Neshoba, Newton, Scott57 min
Apr 8, 3:08 PM CDTSevere Thunderstorm WarningJANHolmes, Humphreys23 min
Apr 8, 9:55 AM CDTSpecial Weather StatementJANAshley50 min
Apr 8, 10:45 AM CDTSevere Thunderstorm WarningJANAshley60 min
Apr 8, 11:43 AM CDTSpecial Weather StatementJANChicot32 min
Apr 8, 12:08 PM CDTSevere Thunderstorm WarningJANChicot22 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2020Every 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.