Alert archive / Mississippi / Special Weather Statements in 2017

Special Weather Statement, NWS Jackson, MS

August 23, 2017Rankin County, Mississippi

NWS Jackson, MS issued this special weather statement at Aug 23, 2017, 7:04 PM CDT for Rankin County, Mississippi. It was in force for 26 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: Aug 23, 2017, 7:04 PM CDT (00:04 UTC)
Expired: Aug 23, 2017, 7:30 PM CDT
In force: 26 min
Issued by: NWS Jackson, MS

County Rankin County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 27 km from the middle of the area, began a volume at 00:04 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 00:00Z, 0.1 hours before the alert went out and 25 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: 1889 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1235 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -6 m²/s²
0-3 km storm-relative helicity: 27 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 Aug 23, 3:30 PM CDT, 3 hours 34 minutes earlier.

Area forecast discussion, Aug 23, 3:30 PM CDT, 3 hours 34 minutes before

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<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
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  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <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.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Hazardous weather outlook, Aug 23, 1:58 PM CDT, 5 hours 6 minutes before

Hazardous Weather Outlook
National Weather Service Jackson MS
158 PM CDT Wed Aug 23 2017

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
241900-
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-
158 PM CDT Wed Aug 23 2017

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

.DAY ONE...Tonight and Thursday

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday night through Tuesday

High moisture associated with Tropical Depression Harvey may
bring multiple rounds of heavy rain and the possibility of flash
flooding by next week. 3-5 inches of rain, with locally higher
amounts, are possible through the period. This potential weather
event is still several days away and the timing, amounts and
impacts will likely be adjusted in later forecasts.

(www.weather.gov/images/jan/graphicast/image1.png)

.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 Tuesday.

DL

&&

...HAZARD LEGEND...

No short term hazards expected.

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

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

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

In the hours before

Special weather statement, Aug 23, 4:15 PM CDT, 2 hours 49 minutes before

Special Weather Statement
National Weather Service Jackson MS
415 PM CDT WED AUG 23 2017

LAZ023>025-232145-
Tensas LA-Catahoula LA-Franklin LA-
415 PM CDT WED AUG 23 2017

...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL TENSAS...
NORTHEASTERN CATAHOULA AND SOUTHERN FRANKLIN PARISHES UNTIL 445 PM
CDT...

At 415 PM CDT, Meteorologists were tracking a strong thunderstorm 7
miles east of Enterprise, or 20 miles northwest of Ferriday. This
storm was nearly stationary.

Winds in excess of 40 mph will be possible with this storm.

This storm will remain over mainly rural areas of west central
Tensas...northeastern Catahoula and southern Franklin Parishes,
including the following locations: Gilbert and Sicily Island.

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 3176 9169 3182 9189 3214 9177 3212 9137
TIME...MOT...LOC 2115Z 198DEG 4KT 3186 9177

JM

Special weather statement, Aug 23, 5:54 PM CDT, 1 hour 10 minutes before

Special Weather Statement
National Weather Service Jackson MS
554 PM CDT WED AUG 23 2017

LAZ016-025-232330-
Tensas LA-Madison LA-
554 PM CDT WED AUG 23 2017

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN TENSAS AND
SOUTHWESTERN MADISON PARISHES UNTIL 630 PM CDT...

At 554 PM CDT, Meteorologists were tracking a strong thunderstorm 7
miles north of Newlight, or 17 miles southwest of Tallulah. This
storm was nearly stationary.

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

This storm will remain over mainly rural areas of northwestern Tensas
and southwestern Madison Parishes.

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 3230 9152 3229 9150 3232 9150 3232 9147
      3234 9148 3245 9120 3211 9124 3214 9150
      3216 9149 3220 9149 3221 9151 3230 9153
TIME...MOT...LOC 2254Z 182DEG 1KT 3221 9139

JM

Special weather statement, Aug 23, 7:03 PM CDT, 1 minute before

Special Weather Statement
National Weather Service Jackson MS
703 PM CDT WED AUG 23 2017

MSZ042-043-048-049-240030-
Hinds MS-Yazoo MS-Rankin MS-Madison MS-
703 PM CDT WED AUG 23 2017

...A STRONG THUNDERSTORM WILL AFFECT WESTERN RANKIN...NORTHEASTERN
YAZOO...EAST CENTRAL HINDS AND CENTRAL MADISON COUNTIES UNTIL 730 PM
CDT...

At 702 PM CDT, Meteorologists were tracking a strong thunderstorm
near Florence, or near Byram. This storm was nearly stationary.

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

This storm will remain over mainly rural areas of western Rankin...
northeastern Yazoo...east central Hinds and central Madison Counties.

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 3294 9013 3288 8997 3288 8994 3214 9003
      3216 9024 3294 9025
TIME...MOT...LOC 0002Z 097DEG 2KT 3214 9018

JM

Special weather statement, Aug 23, 7:04 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Jackson MS
704 PM CDT WED AUG 23 2017

MSZ049-240030-
Rankin MS-
704 PM CDT WED AUG 23 2017

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN RANKIN COUNTY UNTIL
730 PM CDT...

At 704 PM CDT, Meteorologists were tracking a strong thunderstorm
near Whites, or near Byram. This storm was nearly stationary.

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

This storm will remain over mainly rural areas of southwestern Rankin
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 3206 9023 3209 9023 3209 9025 3210 9024
      3211 9025 3212 9024 3215 9024 3215 9025
      3216 9024 3218 9024 3219 9020 3220 9018
      3222 9019 3221 9008 3205 9011 3205 9019
TIME...MOT...LOC 0004Z 097DEG 1KT 3213 9019

JM

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 23, 7:03 PM CDT	Special Weather Statement	JAN	Madison	27 min
Aug 23, 7:11 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Hinds, Rankin, Simpson	34 min
Aug 23, 8:06 PM CDT	Special Weather Statement	JAN	Forrest	24 min
Aug 23, 8:10 PM CDT	Special Weather Statement	JAN	Hinds	35 min
Aug 23, 8:33 PM CDT	Special Weather Statement	JAN	Jones	27 min
Aug 23, 8:34 PM CDT	Special Weather Statement	JAN	Jones	26 min
Aug 23, 9:00 PM CDT	Flash Flood Warning	JAN	Hinds	3 hr
Aug 23, 9:49 PM CDT	Flash Flood Warning	JAN	Marion	3 hr

Nearby

Special Weather Statements in Mississippi, 2017 Every special weather statement in 2017

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.