Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS Jackson, MS

March 16, 2021Rankin County, Mississippi

NWS Jackson, MS issued this special weather statement at Mar 16, 2021, 5:29 PM CDT for Rankin County, Mississippi. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 16, 2021, 5:29 PM CDT (22:29 UTC)
Expired
Mar 16, 2021, 6:00 PM CDT
In force
31 min
Issued by
NWS Jackson, MS

County Rankin County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 18 km from the middle of the area, began a volume at 22:29 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, 10.5 hours before the alert went out and 26 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 2021-03-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 812 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 2021-03-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
812 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
660 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Mar 16, 3:48 PM CDT, 1 hour 41 minutes earlier.

Area forecast discussion, Mar 16, 3:48 PM CDT, 1 hour 41 minutes before
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Hazardous weather outlook, Mar 16, 3:57 PM CDT, 1 hour 32 minutes before
Hazardous Weather Outlook
National Weather Service Jackson MS
357 PM CDT Tue Mar 16 2021

ARZ074-075-LAZ007>009-015-016-023>025-MSZ018-019-025>059-063>066-
172100-
Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland-
Madison LA-Franklin LA-Catahoula-Tensas-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-Lawrence-Jefferson Davis-Covington-Jones-
357 PM CDT Tue Mar 16 2021

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

.DAY ONE...Tonight and Wednesday

SEVERE THUNDERSTORMS
THREAT...Moderate
TIMING...Mainly Wednesday

Severe thunderstorms, capable of damaging wind gusts, hail to golf
ball size, and tornadoes, are possible tonight through early
Wednesday morning. The greatest severe weather potential through
early Wednesday morning will be across portions of northwest
Mississippi, northeast Louisiana, and southeast Arkansas.

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

On Wednesday afternoon and evening, multiple rounds of severe
weather are expected, with the potential for significant severe
weather including strong long track tornadoes, hail up to baseball
size, and damaging wind gusts.

(https://www.weather.gov/images/jan/graphicast/3.png)

.DAYS TWO THROUGH SEVEN...Wednesday night through Monday

Severe thunderstorms will continue into Wednesday evening, before
tapering off overnight.

(https://www.weather.gov/images/jan/graphicast/3.png)

.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 tonight
through Wednesday night.

LAZ026-MSZ060>062-072>074-172100-
Concordia-Adams-Franklin MS-Lincoln-Marion-Lamar-Forrest-
357 PM CDT Tue Mar 16 2021

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

.DAY ONE...Tonight and Wednesday

SEVERE THUNDERSTORMS
THREAT...Marginal This Afternoon and Enhanced Wednesday
TIMING...Mainly Wednesday

Isolated severe thunderstorms, capable of damaging wind gusts and
hail up to quarter size, are possible through this evening.

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

On Wednesday afternoon and evening, multiple rounds of severe
weather are expected, with the potential for significant severe
weather including strong tornadoes, golfball size hail, and
damaging wind gusts.

(https://www.weather.gov/images/jan/graphicast/3.png)

.DAYS TWO THROUGH SEVEN...Wednesday night through Monday

Severe thunderstorms will continue into Wednesday evening, before
tapering off overnight.

(https://www.weather.gov/images/jan/graphicast/3.png)

.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 tonight
through Wednesday night.

DL

&&

...HAZARD LEGEND...

*SEVERE THUNDERSTORMS*
High...Significant severe thunderstorms are expected.
Moderate...Severe storms expected with significant
 severe weather possible.
Enhanced...Severe storms expected.
Slight...Severe storms possible.
Marginal...Isolated severe storms 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

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

Local storm report, Mar 16, 4:07 PM CDT, 1 hour 22 minutes before
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Local storm report, Mar 16, 4:10 PM CDT, 1 hour 19 minutes before
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Special weather statement, Mar 16, 4:57 PM CDT, 32 minutes before
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Local storm report, Mar 16, 4:58 PM CDT, 31 minutes before
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Special weather statement, Mar 16, 4:58 PM CDT, 31 minutes before
Special Weather Statement
National Weather Service Jackson MS
458 PM CDT Tue Mar 16 2021

MSZ038-039-045-046-162230-
Kemper MS-Neshoba MS-Winston MS-Noxubee MS-
458 PM CDT Tue Mar 16 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN NOXUBEE...
NORTHWESTERN KEMPER...SOUTHEASTERN WINSTON AND NORTHEASTERN NESHOBA
COUNTIES UNTIL 530 PM CDT...

At 458 PM CDT, Meteorologists were tracking a strong thunderstorm
over Nanih Waiya, moving northeast at 35 mph.

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

This strong thunderstorm will be near...
  Preston around 505 PM CDT.
  Gholson around 520 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 3279 8894 3294 8906 3310 8881 3292 8866
TIME...MOT...LOC 2158Z 235DEG 28KT 3291 8893

TW
Special weather statement, Mar 16, 5:29 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Jackson MS
529 PM CDT Tue Mar 16 2021

MSZ049-050-162300-
Scott MS-Rankin MS-
529 PM CDT Tue Mar 16 2021

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL RANKIN AND
SOUTHWESTERN SCOTT COUNTIES UNTIL 600 PM CDT...

At 528 PM CDT, Meteorologists were tracking a strong thunderstorm
over Pelahatchie, or 10 miles west of Morton, moving east at 35 mph.

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

This strong thunderstorm will be near...
  Branch around 540 PM CDT.
  Morton around 545 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 3225 8994 3237 8997 3247 8961 3228 8956
TIME...MOT...LOC 2228Z 257DEG 32KT 3234 8983

TW

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 15, 7:23 PM CDTSevere Thunderstorm WarningJANLeake, Scott38 min
Mar 15, 11:39 PM CDTSpecial Weather StatementJANCarroll, Leflore36 min
Mar 15, 11:53 PM CDTSevere Thunderstorm WarningJANGrenada, Montgomery, Webster36 min
Mar 16, 2:54 AM CDTFlash Flood WarningJANClarke6 hr
Mar 16, 6:52 AM CDTSpecial Weather StatementJANJasper38 min
Mar 16, 10:18 AM CDTFlash Flood WarningJANClarke, Jasper3 hr
Mar 16, 11:08 AM CDTFlash Flood WarningJANCovington, Jones, Smith3 hr
Mar 16, 11:49 AM CDTFlash Flood WatchJANClarke, Covington, Jasper, Jefferson Davis, Jones, Lauderdale and 4 more7 hr
Mar 16, 2:40 PM CDTRiver Flood WarningJANJones5 days
Mar 16, 4:50 PM CDTSevere Thunderstorm WarningJANIssaquena40 min
Mar 16, 4:57 PM CDTSpecial Weather StatementJANRankin33 min
Mar 16, 4:58 PM CDTSpecial Weather StatementJANWinston32 min
Mar 16, 5:17 PM CDTSevere Thunderstorm WarningJANWashington43 min
Mar 16, 6:34 PM CDTSpecial Weather StatementJANCopiah26 min
Mar 16, 6:45 PM CDTSevere Thunderstorm WarningJANCopiah60 min
Mar 16, 6:59 PM CDTSpecial Weather StatementJANAttala46 min
Mar 16, 2:22 PM CDTSpecial Weather StatementJANCatahoula53 min
Mar 16, 3:13 PM CDTSpecial Weather StatementJANFranklin47 min
Mar 16, 3:27 PM CDTSevere Thunderstorm WarningJANFranklin, Madison48 min
Mar 16, 3:57 PM CDTSpecial Weather StatementJANWest Carroll48 min
Mar 16, 4:16 PM CDTSevere Thunderstorm WarningJANEast Carroll, Madison, Richland, West Carroll59 min

Nearby

Special Weather Statements in Mississippi, 2021Every special weather statement in 2021

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.