Alert archive / Mississippi / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 388, NWS Jackson, MS

August 16, 20204 counties in Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Aug 16, 2020, 4:51 PM CDT for 4 counties in 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: Aug 16, 2020, 4:51 PM CDT (21:51 UTC)
Expired: Aug 16, 2020, 5:30 PM CDT
In force: 39 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Attala County, MS, Holmes County, MS, Leake County, MS, Madison County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 71 km from the middle of the area, began a volume at 21:53 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, 9.9 hours before the alert went out and 69 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: 1044 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 1241 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 66 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 Aug 16, 3:55 PM CDT, 56 minutes earlier.

Area forecast discussion, Aug 16, 3:55 PM CDT, 56 minutes before

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Hazardous weather outlook, Aug 16, 10:22 AM CDT, 6 hours 29 minutes before

Hazardous Weather Outlook
National Weather Service Jackson MS
1022 AM CDT Sun Aug 16 2020

ARZ074-LAZ007-008-015-016-023>026-MSZ053-054-059>062-171530-
Ashley-Morehouse-West Carroll-Richland-Madison LA-Franklin LA-
Catahoula-Tensas-Concordia-Claiborne-Copiah-Jefferson-Adams-
Franklin MS-Lincoln-
1022 AM CDT Sun Aug 16 2020

This hazardous weather outlook is for portions of southeast
Arkansas, northeast Louisiana, central Mississippi, south central
Mississippi, and southwest Mississippi.

.DAY ONE...Today and Tonight

DANGEROUS HEAT
THREAT...Elevated
TIMING...Today

Today, dangerous heat likely with peak heat index values ranging
from 105 to 110 degrees. Heat exhaustion will be likely with
outdoor activity.

(https://www.weather.gov/images/jan/graphicast/1.png)

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations is not expected through next Saturday.

ARZ075-LAZ009-MSZ034-035-040-041-047-048-171530-
Chicot-East Carroll-Washington-Humphreys-Issaquena-Sharkey-Warren-
Hinds-
1022 AM CDT Sun Aug 16 2020

This hazardous weather outlook is for portions of southeast
Arkansas, northeast Louisiana, central Mississippi, northwest
Mississippi, and west central Mississippi.

.DAY ONE...Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...Today through this evening

DANGEROUS HEAT
THREAT...Elevated
TIMING...Today

Today through this evening, isolated severe thunderstorms are
possible. Some thunderstorms could produce damaging wind gusts and
hail.

(https://www.weather.gov/images/jan/graphicast/2.png)

Today, dangerous heat likely with peak heat index values ranging
from 105 to 110 degrees. Heat exhaustion will be likely with
outdoor activity.

(https://www.weather.gov/images/jan/graphicast/1.png)

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region today
through tonight.

MSZ018-019-025-036-042>046-049-050-171530-
Bolivar-Sunflower-Leflore-Holmes-Yazoo-Madison MS-Leake-Neshoba-
Kemper-Rankin-Scott-
1022 AM CDT Sun Aug 16 2020

This hazardous weather outlook is for portions of central
Mississippi, east central Mississippi, north central Mississippi,
and northwest Mississippi.

.DAY ONE...Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...Today through Tonight

DANGEROUS HEAT
THREAT...Limited
TIMING...Today

Today through tonight, isolated severe thunderstorms are
possible. Some thunderstorms could produce damaging wind gusts
and hail.

(https://www.weather.gov/images/jan/graphicast/2.png)

Today, caution is advised for possible dangerous heat as heat
index values peak near 105 degrees. Heat exhaustion will be
possible with outdoor activity.

(https://www.weather.gov/images/jan/graphicast/1.png)

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region today
through tonight.

MSZ026>033-037>039-171530-
Grenada-Carroll-Montgomery-Webster-Clay-Lowndes-Choctaw-Oktibbeha-
Attala-Winston-Noxubee-
1022 AM CDT Sun Aug 16 2020

This hazardous weather outlook is for portions of central
Mississippi, east central Mississippi, north central Mississippi,
and northeast Mississippi.

.DAY ONE...Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...Today through Tonight

Today through tonight, isolated severe thunderstorms are
possible. Some thunderstorms could produce damaging wind gusts
and hail.

(https://www.weather.gov/images/jan/graphicast/2.png)

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region today
through tonight.

MSZ051-052-055>057-063>065-072-073-171530-
Newton-Lauderdale-Simpson-Smith-Jasper-Lawrence-Jefferson Davis-
Covington-Marion-Lamar-
1022 AM CDT Sun Aug 16 2020

This hazardous weather outlook is for portions of central
Mississippi, east central Mississippi, south central Mississippi,
and southeast Mississippi.

.DAY ONE...Today and Tonight

DANGEROUS HEAT
THREAT...Limited
TIMING...Today

Today, caution is advised for possible dangerous heat as heat
index values peak near 105 degrees. Heat exhaustion will be
possible with outdoor activity.

(https://www.weather.gov/images/jan/graphicast/1.png)

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations is not expected through next Saturday.

MSZ058-066-074-171530-
Clarke-Jones-Forrest-
1022 AM CDT Sun Aug 16 2020

This hazardous weather outlook is for portions of east central
Mississippi, and southeast Mississippi.

.DAY ONE...Today and Tonight

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations is not expected through next Saturday.

3

&&

...HAZARD LEGEND...

*DANGEROUS HEAT*
Extreme...Extreme heat is expected with peak heat index values
 in excess of 110 degrees for multiple days. Heat stroke continues
 to be a major concern.
Significant...Dangerous heat expected with peak heat index values
 in excess of 110 degrees. Heat stroke will be a significant
 concern.
Elevated...Dangerous heat likely with peak heat index values
 ranging from 106 to 110 degrees. Heat exhaustion will be likely.
Limited...Caution is advised for possible dangerous heat as
 heat index values peak near 105 degrees. Heat exhaustion will
 be possible.

*SEVERE THUNDERSTORMS*
High...Significant severe thunderstorms and tornadoes are
 likely with strong or violent tornadoes possible.
Moderate...Significant severe thunderstorms and tornadoes are
 likely with strong tornadoes possible.
Enhanced...Severe thunderstorms are likely and tornadoes are
 possible.
Slight...Severe thunderstorms and tornadoes are possible.
Marginal...Isolated severe thunderstorms are possible.

...USEFUL WEATHER WEB PAGES (URLS)...

NWS JAN Home page...
   https://www.weather.gov/jan
Stay Aware, Stay Safe NWS JAN Briefing Page...
   https://www.weather.gov/jan/safe
Latest Weather Briefing...
   https://www.weather.gov/jan/weather_briefing

Tropical page...
   https://www.weather.gov/srh/tropical?office=jan
National Hurricane Center Home Page...
   https://www.nhc.noaa.gov/
Find NWS JAN on Facebook...
   https://www.facebook.com/NWSJacksonMS
Follow NWS JAN on Twitter...
   @NWSJacksonMS
Follow NWS JAN on Youtube...
   https://www.youtube.com/user/NWSJacksonMiss

...ADDITIONAL URLS FOR SEVERE WEATHER ISSUES...

Storm Prediction Center (SPC)...
   https://www.spc.noaa.gov/
Meso Analysis...
   https://www.spc.noaa.gov/exper/mesoanalysis/
Day 1 through 3 Outlooks...
   https://www.spc.noaa.gov/products/outlook/
Storm Reports...
   https://www.spc.noaa.gov/climo/online/

In the hours before

Special weather statement, Aug 16, 3:07 PM CDT, 1 hour 44 minutes before

Special Weather Statement
National Weather Service Jackson MS
307 PM CDT Sun Aug 16 2020

MSZ027-028-162045-
Carroll MS-Montgomery MS-
307 PM CDT Sun Aug 16 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN CARROLL AND WESTERN
MONTGOMERY COUNTIES UNTIL 345 PM CDT...

At 307 PM CDT, Meteorologists were tracking a strong thunderstorm
near Duck Hill, or near Winona, moving south at 15 mph.

Dime size hail and wind gusts up to 50 mph will be possible with this
storm.

This strong thunderstorm will be near...
  Winona around 330 PM CDT.
  Kilmichael around 345 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.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3361 8985 3362 8962 3336 8951 3334 8984
TIME...MOT...LOC 2007Z 349DEG 14KT 3357 8973

NF

Local storm report, Aug 16, 3:10 PM CDT, 1 hour 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
310 PM CDT SUN AUG 16 2020

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

0152 PM     TSTM WND DMG     STURGIS                 33.34N 89.05W
08/16/2020                   OKTIBBEHA          MS   PUBLIC

            SOCIAL MEDIA REPORT OF A TREE DOWN IN THE
            STURGIS AREA.

&&

TW

Special weather statement, Aug 16, 3:18 PM CDT, 1 hour 33 minutes before

Special Weather Statement
National Weather Service Jackson MS
318 PM CDT Sun Aug 16 2020

MSZ028-032-037-162045-
Attala MS-Montgomery MS-Choctaw MS-
318 PM CDT Sun Aug 16 2020

...A STRONG THUNDERSTORM WILL AFFECT WESTERN CHOCTAW...NORTHEASTERN
ATTALA AND SOUTHEASTERN MONTGOMERY COUNTIES UNTIL 345 PM CDT...

At 318 PM CDT, Meteorologists were tracking a strong thunderstorm 9
miles east of Kilmichael, or 19 miles east of Winona, moving south at
15 mph.

Dime size hail and wind gusts up to 50 mph will be possible with this
storm.

Locations impacted include...
Weir, French Camp and Mccool.

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.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3316 8924 3318 8958 3348 8952 3348 8951
      3346 8951 3346 8938 3347 8936 3347 8934
      3349 8933 3349 8929
TIME...MOT...LOC 2018Z 358DEG 15KT 3342 8940

NF

Local storm report, Aug 16, 3:25 PM CDT, 1 hour 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
325 PM CDT SUN AUG 16 2020

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

0243 PM     TSTM WND DMG     MASHULAVILLE            33.09N 88.74W
08/16/2020                   NOXUBEE            MS   LAW ENFORCEMENT

            TREE DOWN ALONG HWY 14 NEAR MASHULAVILLE.

&&

TW

Special weather statement, Aug 16, 3:45 PM CDT, 1 hour 6 minutes before

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Local storm report, Aug 16, 4:40 PM CDT, 11 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
Aug 16, 3:18 AM CDT	Heat Advisory	JAN	Adams, Claiborne, Copiah, Franklin, Hinds, Humphreys and 7 more	15 hr
Aug 16, 12:30 PM CDT	Special Weather Statement	JAN	Webster	45 min
Aug 16, 1:07 PM CDT	Special Weather Statement	JAN	Oktibbeha	38 min
Aug 16, 1:18 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Clay, Oktibbeha, Webster	57 min
Aug 16, 1:37 PM CDT	Special Weather Statement	JAN	Grenada	38 min
Aug 16, 2:04 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Noxubee, Winston	56 min
Aug 16, 2:41 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Neshoba, Noxubee, Winston	64 min
Aug 16, 3:00 PM CDT	Special Weather Statement	JAN	Hinds	30 min
Aug 16, 3:07 PM CDT	Special Weather Statement	JAN	Montgomery	38 min
Aug 16, 3:18 PM CDT	Special Weather Statement	JAN	Choctaw	27 min
Aug 16, 3:40 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale, Neshoba, Newton	36 min
Aug 16, 3:45 PM CDT	Special Weather Statement	JAN	Attala, Winston	30 min
Aug 16, 4:08 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Leake	52 min
Aug 16, 4:15 PM CDT	Severe Thunderstorm Warning	JAN	Attala	45 min
Aug 16, 5:21 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Madison, Rankin, Scott	39 min
Aug 16, 5:29 PM CDT	Special Weather Statement	JAN	Clarke, Jasper	31 min
Aug 16, 5:44 PM CDT	Severe Thunderstorm Warning	JAN	Rankin, Scott, Smith	46 min
Aug 16, 6:06 PM CDT	Special Weather Statement	JAN	Madison	24 min
Aug 16, 6:16 PM CDT	Severe Thunderstorm Warning	JAN	Jasper, Smith	25 min
Aug 16, 6:34 PM CDT	Special Weather Statement	JAN	Rankin	26 min
Aug 16, 6:43 PM CDT	Special Weather Statement	JAN	Jasper, Smith	32 min
Aug 16, 6:52 PM CDT	Severe Thunderstorm Warning	JAN	Hinds	38 min
Aug 16, 6:55 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis, Simpson	50 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.