Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS Jackson, MS

July 18, 2021Neshoba County, Newton County, Mississippi

NWS Jackson, MS issued this special weather statement at Jul 18, 2021, 11:50 AM CDT for Neshoba County, Newton 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 outline as issued.

The facts

Issued
Jul 18, 2021, 11:50 AM CDT (16:50 UTC)
Expired
Jul 18, 2021, 12:30 PM CDT
In force
40 min
Issued by
NWS Jackson, MS

Counties Neshoba County, MS, Newton County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 89 km from the middle of the area, began a volume at 16:53 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, 4.8 hours before the alert went out and 95 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 2021-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 505 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 2021-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.1939Sfc1 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
505 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
870 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
48 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Jul 18, 9:42 AM CDT, 2 hours 8 minutes earlier.

Area forecast discussion, Jul 18, 9:42 AM CDT, 2 hours 8 minutes before
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</head>
<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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Hazardous weather outlook, Jul 18, 3:20 AM CDT, 8 hours 30 minutes before
Hazardous Weather Outlook
National Weather Service Jackson MS
320 AM CDT Sun Jul 18 2021

ARZ074-075-LAZ007>009-015-MSZ018-019-025>028-034>037-040>042-
182000-
Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland-
Bolivar-Sunflower-Leflore-Grenada-Carroll-Montgomery-Washington-
Humphreys-Holmes-Attala-Issaquena-Sharkey-Yazoo-
320 AM CDT Sun Jul 18 2021

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

.DAY ONE...Today and Tonight...

FLOODING
THREAT...Limited
TIMING...Today

Additional showers and storms will affect the outlook area from
late this morning through early this evening.  Localized flash
flooding will be possible during this time, as heavy rain falls
across the same locations where soils are saturated from heavy
rainfall in recent days.

(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.

LAZ016-023>026-MSZ029>033-038-039-043>066-072>074-182000-
Madison LA-Franklin LA-Catahoula-Tensas-Concordia-Webster-Clay-
Lowndes-Choctaw-Oktibbeha-Winston-Noxubee-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-
320 AM CDT Sun Jul 18 2021

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

19

&&

...HAZARD LEGEND...

*FLOODING*
Extreme...Widespread and significant flooding is likely.
Significant...Widespread flash flooding is likely
 and significant flooding is possible.
Elevated...Areas of flash flooding likely.
Limited...Localized flash flooding is 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 FLOODING ISSUES...

Current Watches and Warnings...
   https://www.weather.gov/jan/safe_HeavyRain

Observed Precipitation Images...
   https://www.weather.gov/jan/precipmaps

River Forecast Center...
   https://www.weather.gov/lmrfc/
Significant River Flood Outlook...
   https://www.wpc.ncep.noaa.gov/nationalfloodoutlook/index.html
Day 1 through 3 Excessive Rainfall...
   https://www.wpc.ncep.noaa.gov/qpf/excess_rain.shtml
Excessive Rainfall Discussion...
   https://www.wpc.ncep.noaa.gov/discussions/qpferd.html
Day 1 through 7 QPF...
   https://www.wpc.ncep.noaa.gov/qpf/qpf2.shtml
QPF Discussion...
   https://www.wpc.ncep.noaa.gov/discussions/qpfpfd.html

In the hours before

Special weather statement, Jul 18, 11:50 AM CDT, 0 minutes before
Special Weather Statement
National Weather Service Jackson MS
1150 AM CDT Sun Jul 18 2021

MSZ038-044>046-050>052-181730-
Kemper MS-Scott MS-Lauderdale MS-Newton MS-Neshoba MS-Leake MS-
Winston MS-
1150 AM CDT Sun Jul 18 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN LEAKE...NORTHERN
NEWTON...SOUTHWESTERN KEMPER...SOUTH CENTRAL WINSTON...EAST CENTRAL
SCOTT...NESHOBA AND NORTHWESTERN LAUDERDALE COUNTIES UNTIL 1230 PM
CDT...

At 1150 AM CDT, Meteorologists were tracking a strong thunderstorm
over Dixon, or near Prospect, moving east at 15 mph.

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

This strong thunderstorm will be near...
  Neshoba around 1210 PM CDT.
  Philadelphia around 1215 PM CDT.
  Bethsaida and House around 1230 PM CDT.

Other locations impacted by this storm include Tucker, Lake and
Sebastopol.

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 3233 8933 3278 8941 3299 8891 3266 8884
      3246 8887
TIME...MOT...LOC 1650Z 251DEG 11KT 3265 8923

JNE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 7:06 AM CDTDense Fog AdvisoryJANCovington, Forrest, Jefferson Davis, Jones, Lamar, Marion114 min
Jul 18, 8:07 AM CDTRiver Flood WarningJANMadison, Yazoo6 days
Jul 18, 1:04 PM CDTSpecial Weather StatementJANBolivar56 min
Jul 18, 1:57 PM CDTSpecial Weather StatementJANHumphreys48 min
Jul 18, 2:00 PM CDTSpecial Weather StatementJANSunflower45 min
Jul 18, 2:16 PM CDTSpecial Weather StatementJANLeflore, Sunflower29 min
Jul 18, 2:54 PM CDTSpecial Weather StatementJANCarroll, Leflore51 min
Jul 18, 3:22 PM CDTSpecial Weather StatementJANIssaquena38 min
Jul 18, 4:13 PM CDTSpecial Weather StatementJANMontgomery47 min
Jul 18, 4:47 PM CDTSpecial Weather StatementJANLeake43 min
Jul 18, 6:36 PM CDTSpecial Weather StatementJANNeshoba24 min
Jul 18, 6:38 PM CDTSpecial Weather StatementJANScott52 min
Jul 18, 2:24 PM CDTSpecial Weather StatementJANWest Carroll51 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.