Alert archive / Louisiana / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 216, NWS Jackson, MS

May 23, 2020Claiborne County, Issaquena County, Warren County, Mississippi; 7 parishes in Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at May 23, 2020, 1:47 PM CDT for Claiborne County, Issaquena County, Warren County, Mississippi; 7 parishes in Louisiana. It was in force for 58 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 23, 2020, 1:47 PM CDT (18:47 UTC)
Expired
May 23, 2020, 2:45 PM CDT
In force
58 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

Counties East Carroll Parish, LA, Franklin Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Richland Parish, LA, Tensas Parish, LA, West Carroll Parish, LA, Claiborne County, MS, Issaquena County, MS, Warren County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 127 km from the middle of the area, began a volume at 18:50 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.

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 23, 1:26 PM CDT, 21 minutes earlier.

Area forecast discussion, May 23, 1:26 PM CDT, 21 minutes before
Area Forecast Discussion
National Weather Service Jackson MS
126 PM CDT Sat May 23 2020

.UPDATE...
Updated for 18Z aviation discussion

&&

.AVIATION...
18Z TAF discussion:
VFR ceilings are occurring at TAF sites outside of thunderstorms.
Where a thunderstorm occurs, brief lowered ceilings and vis can be
expected through the rest of the afternoon. Convection will
diminish with loss of daytime heating this evening. Some brief
MVFR ceilings could occur around daybreak tomorrow morning but
otherwise VFR conditions will occur tomorrow outside of additional
storms that develop. /28/

&&

.DISCUSSION...
As expected, a decaying MCS is moving across northeast Louisiana
with some outflow boundary having made it into the Delta region of
Mississippi. This has also brought a few storms to that region as
well this morning. Expect that as the remnant outflow boundary
lingers in the region, additional showers and storms will develop
during the afternoon as daytime heating peaks. Morning microburst
analysis is not overly different than yesterday. PW values across
the region are a little higher around 1.45 inches per 12Z KJAN
sounding. Vertical totalsand mid level lapse rates are good and
supportive of at least some strong storms today. It won't be out
of the question for additional severe storms as well. Coverage
should be greater today than yesterday with the highest
concentration being along and southeast of the Natchez Trace
corridor, at least per hi-res CAM guidance. Otherwise,
temperatures will be warm and very summerlike once again today.
Highs will be in the lower 90s again today with dewpoints in the
upper 60s to lower 70s. /28/

Prior discussion below:

Today: This morning GOES-East water vapor & infrared imagery
indicate a large MCS/decaying complex of thunderstorms ongoing
across eastern Oklahoma & across Arkansas. This MCS is gradually
losing steam as is propagates southeast into the ArkLaTex &
towards the region. This is in response to a shortwave trough
digging through the central Plains to the Ozarks. Synoptic &
surface analysis indicate subtle troughing extending into the Gulf
of Mexico while a surface warm front is draped across the
ArkLaTex-north Mississippi. Expect any decaying storms to make it
just in our far northwest Delta or remnant outflow boundary to
drift slowly move in. Local CAM guidance indicate this solution
will pan out but with some convection closing in a little further
east, it might be able to sneak in this morning before sunrise.
Otherwise, expect a near carbon copy of yesterday. The region will
remain under the influence of return flow on the western
periphery of 700-850mb thermal ridge over the Florida Peninsula &
just off the southeast Atlantic coastline. Expect a more
summertime pattern with return flow of high Theta E laden air of
nearly 330K+ @ 850mb Theta E & PWs potentially approaching an inch
& a half to an inch & three quarters. This will help any light
showers to develop by mid-morning along & southeast of the
Natchez Trace & scattered rain & storm chances spread northwest
over a majority of the region, outside of the ArkLaMiss Delta.
Similar to yesterday, with above normal heat & humidity (i.e.
highs in low 90s & heat indices peaking in mid 90s) will combine
with 6.5-7.5 deg 700-500mb lapse rates/27-29 deg. C. vertical
totals & subtle south-southwest 0-2km bulk shear ~10-15kts. This
supports some strong & isolated severe microburst potential, with
gusty winds/marginal hail, especially in any north-northeast
propagating segments. However, HRRR is decreases confidence on
coverage due to some PWs less than an inch & a half. Due to that &
being so mesoscale driven, there remains uncertainty of exact
coverage of scattered diurnal development. Thus, not enough
confidence to introduce any mention in the HWO.

Tonight: Expect these storms to gradually wind down at most few
hours after sunset & especially before midnight. For tonight, low-
mid-level ridge will remain parked to our east. Persistent southerly
flow will keep partly cloudy skies & muggy & above normal warmth
around in the upper 60s in the east to low 70s west of Interstate
55. /DC/

Sunday through next Friday night: a rather wet, early summer like
weather pattern will maintain warm and humid conditions for the
ArkLaMiss through the long term. There is consensus among the NWP
guidance in depicting an upper low closing and cutting off over
the Southern Plains region and persisting through next week. As
this happens, the forecast area will experience prolonged
southerly flow that would support considerable coverage of mostly
diurnal convective precipitation, with coverage most pronounced
over western/central portions of the ArkLaMiss.

Increasingly cyclonic and convergent flow will support fairly
steep mid level lapse rates that could support a few strong/severe
storms, although the southerly low level flow will hasten daily
convective development and this could limit heating/destabilization.
As we go later into the week, the upper low will likely weaken
and retrograde some resulting in slightly warmer mid level
temperatures. In any case, with precipitable water exceeding two
inches at times, locally heavy rainfall could become a concern,
especially in the Tue-Thu time frame when moisture convergence
should be most persistent. /EC/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       91  69  90  69 /  45  24  26  13
Meridian      91  67  91  67 /  45  23  34  15
Vicksburg     90  72  90  70 /  45  19  28  12
Hattiesburg   90  69  89  68 /  45  11  37  16
Natchez       89  70  88  69 /  45  24  37  11
Greenville    91  72  89  71 /  30  19  23  18
Greenwood     91  71  91  69 /  28  22  22  21

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...None.
LA...None.
AR...None.

&&

28
Hazardous weather outlook, May 23, 4:17 AM CDT, 9 hours 30 minutes before
Hazardous Weather Outlook
National Weather Service Jackson MS
417 AM CDT Sat May 23 2020

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
240930-
Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland-
Madison LA-Franklin LA-Catahoula-Tensas-Concordia-Bolivar-
Sunflower-Leflore-Grenada-Carroll-Montgomery-Webster-Clay-Lowndes-
Choctaw-Oktibbeha-Washington-Humphreys-Holmes-Attala-Winston-
Noxubee-Issaquena-Sharkey-Yazoo-Madison MS-Leake-Neshoba-Kemper-
Warren-Hinds-Rankin-Scott-Newton-Lauderdale-Claiborne-Copiah-
Simpson-Smith-Jasper-Clarke-Jefferson-Adams-Franklin MS-Lincoln-
Lawrence-Jefferson Davis-Covington-Jones-Marion-Lamar-Forrest-
417 AM CDT Sat May 23 2020

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

.DAY ONE...Today and Tonight

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

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 Friday.

23

&&

...HAZARD LEGEND...

No short term hazards expected.

...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

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

In the hours before

Special weather statement, May 23, 1:24 PM CDT, 23 minutes before
Special Weather Statement
National Weather Service Jackson MS
124 PM CDT Sat May 23 2020

MSZ043-048-231900-
Hinds MS-Madison MS-
124 PM CDT Sat May 23 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN HINDS AND
SOUTHWESTERN MADISON COUNTIES UNTIL 200 PM CDT...

At 124 PM CDT, Meteorologists were tracking a strong thunderstorm
over Clinton, moving northeast at 25 mph.

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

This strong thunderstorm will be near...
  Pocahontas around 150 PM CDT.
  Ridgeland around 155 PM CDT.
  Madison, Annandale and Gluckstadt around 200 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 3232 9041 3266 9026 3266 9025 3257 9012
      3251 8997 3248 9000 3248 9002 3246 9003
      3243 9006 3244 9007 3242 9007 3223 9029
TIME...MOT...LOC 1824Z 210DEG 21KT 3233 9033

TW
Special weather statement, May 23, 1:25 PM CDT, 22 minutes before
Special Weather Statement
National Weather Service Jackson MS
125 PM CDT Sat May 23 2020

MSZ049-231915-
Rankin MS-
125 PM CDT Sat May 23 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN RANKIN COUNTY UNTIL
215 PM CDT...

At 125 PM CDT, Meteorologists were tracking a strong thunderstorm
near Fannin, or near Brandon, moving northeast at 25 mph.

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

This strong thunderstorm will be near...
  Fannin around 135 PM CDT.
  Goshen Springs around 145 PM CDT.
  Pisgah around 150 PM CDT.
  Leesburg around 155 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 3226 8994 3234 9005 3249 8999 3250 8998
      3249 8996 3251 8994 3251 8993 3253 8992
      3253 8991 3254 8989 3255 8990 3256 8989
      3251 8976 3244 8975
TIME...MOT...LOC 1825Z 209DEG 21KT 3235 8996

TW
Special weather statement, May 23, 1:27 PM CDT, 20 minutes before
Special Weather Statement
National Weather Service Jackson MS
127 PM CDT Sat May 23 2020

MSZ032-033-231915-
Oktibbeha MS-Choctaw MS-
127 PM CDT Sat May 23 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN CHOCTAW AND
SOUTHWESTERN OKTIBBEHA COUNTIES UNTIL 215 PM CDT...

At 127 PM CDT, Meteorologists were tracking a strong thunderstorm
over Ackerman, or 14 miles north of Louisville, moving northeast at
20 mph.

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

This strong thunderstorm will be near...
  Reform around 145 PM CDT.
  Sherwood around 155 PM CDT.

Other locations impacted by this storm include Sturgis.

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 3329 8903 3329 8910 3328 8911 3321 8911
      3329 8927 3351 8912 3340 8893
TIME...MOT...LOC 1827Z 213DEG 18KT 3332 8913

TW
Special weather statement, May 23, 1:33 PM CDT, 14 minutes before
Special Weather Statement
National Weather Service Jackson MS
133 PM CDT Sat May 23 2020

MSZ030-231900-
Clay MS-
133 PM CDT Sat May 23 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL CLAY COUNTY UNTIL
200 PM CDT...

At 133 PM CDT, Meteorologists were tracking a strong thunderstorm
over Trebloc, or 8 miles northeast of Montpelier, moving northeast at
20 mph.

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

This storm will remain over mainly rural areas of north central Clay
County.

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 3380 8872 3375 8888 3380 8893 3381 8893
      3381 8872
TIME...MOT...LOC 1833Z 242DEG 15KT 3380 8885

TW
Special weather statement, May 23, 1:44 PM CDT, 3 minutes before
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Local storm report, May 23, 1:46 PM CDT, 1 minute before
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      <h1 id="headline">This service is currently unavailable.</h1>
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      </p>
      <p id="message2">
        Please try again in a few minutes.
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The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 6:55 AM CDTSpecial Weather StatementJANGrenada35 min
May 23, 12:26 PM CDTSpecial Weather StatementJANLincoln49 min
May 23, 1:06 PM CDTSpecial Weather StatementJANMadison39 min
May 23, 1:07 PM CDTSpecial Weather StatementJANHinds23 min
May 23, 1:08 PM CDTSpecial Weather StatementJANCopiah37 min
May 23, 1:15 PM CDTSevere Thunderstorm WarningJANHinds21 min
May 23, 1:20 PM CDTSpecial Weather StatementJANFranklin25 min
May 23, 1:24 PM CDTSpecial Weather StatementJANMadison36 min
May 23, 1:25 PM CDTSpecial Weather StatementJANRankin50 min
May 23, 1:27 PM CDTSpecial Weather StatementJANChoctaw48 min
May 23, 1:33 PM CDTSpecial Weather StatementJANClay27 min
May 23, 1:35 PM CDTSevere Thunderstorm WarningJANHinds, Madison40 min
May 23, 1:39 PM CDTSevere Thunderstorm WarningJANCopiah, Franklin, Jefferson, Lincoln51 min
May 23, 1:44 PM CDTSpecial Weather StatementJANClay31 min
May 23, 1:52 PM CDTSevere Thunderstorm WarningJANAttala, Leake, Madison29 min
May 23, 1:53 PM CDTSpecial Weather StatementJANScott52 min
May 23, 2:04 PM CDTSpecial Weather StatementJANAdams, Franklin, Jefferson41 min
May 23, 2:05 PM CDTSevere Thunderstorm WarningJANMadison, Rankin25 min
May 23, 2:11 PM CDTSpecial Weather StatementJANMarion34 min
May 23, 2:12 PM CDTSpecial Weather StatementJANSimpson33 min
May 23, 2:19 PM CDTSpecial Weather StatementJANLeake41 min
May 23, 2:27 PM CDTSevere Thunderstorm WarningJANHinds, Issaquena, Sharkey, Warren, Yazoo63 min
May 23, 2:29 PM CDTSevere Thunderstorm WarningJANLeake, Madison43 min
May 23, 2:32 PM CDTSpecial Weather StatementJANAttala28 min
May 23, 2:43 PM CDTSpecial Weather StatementJANJones47 min
May 23, 2:46 PM CDTSpecial Weather StatementJANHinds44 min
May 23, 2:48 PM CDTSpecial Weather StatementJANSmith27 min
May 23, 2:50 PM CDTSevere Thunderstorm WarningJANSimpson, Smith40 min
May 23, 2:54 PM CDTSpecial Weather StatementJANRankin36 min
May 23, 2:59 PM CDTSpecial Weather StatementJANCovington31 min
May 23, 3:03 PM CDTSpecial Weather StatementJANRankin27 min
May 23, 3:14 PM CDTSpecial Weather StatementJANScott31 min
May 23, 3:18 PM CDTSevere Thunderstorm WarningJANHolmes, Humphreys, Yazoo30 min
May 23, 3:26 PM CDTSpecial Weather StatementJANWinston49 min
May 23, 3:32 PM CDTSevere Thunderstorm WarningJANChoctaw, Winston58 min
May 23, 3:34 PM CDTSevere Thunderstorm WarningJANCovington, Simpson, Smith56 min
May 23, 3:39 PM CDTSpecial Weather StatementJANLauderdale36 min
May 23, 3:44 PM CDTSpecial Weather StatementJANJasper46 min
May 23, 3:47 PM CDTSpecial Weather StatementJANScott28 min
May 23, 3:48 PM CDTSpecial Weather StatementJANHumphreys27 min
May 23, 3:54 PM CDTSpecial Weather StatementJANNewton36 min
May 23, 4:10 PM CDTSevere Thunderstorm WarningJANJasper, Lauderdale, Newton48 min
May 23, 4:17 PM CDTSpecial Weather StatementJANOktibbeha28 min
May 23, 4:30 PM CDTSpecial Weather StatementJANLowndes30 min
May 23, 4:32 PM CDTSpecial Weather StatementJANLauderdale28 min
May 23, 4:34 PM CDTSpecial Weather StatementJANLowndes26 min
May 23, 4:43 PM CDTSevere Thunderstorm WarningJANKemper, Neshoba47 min
May 23, 4:46 PM CDTSpecial Weather StatementJANLowndes29 min
May 23, 4:51 PM CDTSevere Thunderstorm WarningJANClay, Lowndes, Oktibbeha54 min
May 23, 4:53 PM CDTSpecial Weather StatementJANKemper37 min
May 23, 4:57 PM CDTSevere Thunderstorm WarningJANKemper30 min
May 23, 5:12 PM CDTSevere Thunderstorm WarningJANKemper, Noxubee50 min
May 23, 5:14 PM CDTSpecial Weather StatementJANLowndes31 min
May 23, 1:18 PM CDTSpecial Weather StatementJANFranklin, Madison, Richland, Tensas42 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2020Severe 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; radar from the NEXRAD Level II archive.