Alert archive / Mississippi / Special Weather Statements in 2018

Special Weather Statement, NWS Jackson, MS

July 15, 2018Montgomery County, Mississippi

NWS Jackson, MS issued this special weather statement at Jul 15, 2018, 8:39 PM CDT for Montgomery County, Mississippi. It was in force for 36 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 15, 2018, 8:39 PM CDT (01:39 UTC)
Expired
Jul 15, 2018, 9:15 PM CDT
In force
36 min
Issued by
NWS Jackson, MS

County Montgomery County, MS

The radar

The Columbus AFB radar (KGWX), 119 km from the middle of the area, began a volume at 01:40 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

Little Rock, AR (KBYH), launched 00:00Z, 1.7 hours before the alert went out and 160 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, Little Rock, AR at 00:00Z on 2018-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 859 joules per kilogram.LCLEL10008507005003002001001 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, Little Rock, AR at 00:00Z on 2018-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
859 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
2211 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
36 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 15, 6:35 PM CDT, 2 hours 4 minutes earlier.

Area forecast discussion, Jul 15, 6:35 PM CDT, 2 hours 4 minutes before
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Hazardous weather outlook, Jul 15, 3:10 PM CDT, 5 hours 29 minutes before
Hazardous Weather Outlook
National Weather Service Jackson MS
310 PM CDT Sun Jul 15 2018

ARZ074-075-LAZ007>009-015-MSZ018-019-025-034-035-040-041-162015-
Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland-
Bolivar-Sunflower-Leflore-Washington-Humphreys-Issaquena-Sharkey-
310 PM CDT Sun Jul 15 2018

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...Tonight and Monday

EXCESSIVE HEAT
THREAT...Elevated
TIMING...Monday

Highs temperatures in the mid 90s will combine with high humidity
to result in heat index values near or above 105 degrees until 7
PM this evening and then again Monday. Precautions should be taken
to avoid strenuous outdoor activities. Check on those vulnerable
to heat stress. Stay hydrated and wear light, loose fitted
clothing.

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

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

Highs temperatures in the low to mid 90s will combine with high
humidity to result in heat index values near 105 degrees again
Tuesday. Precautions should be taken to avoid strenuous outdoor
activities. Check on those vulnerable to heat stress. Stay
hydrated and wear light, loose fitted clothing.

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

LAZ016-023>026-MSZ026>033-036>039-042>066-072>074-162015-
Madison LA-Franklin LA-Catahoula-Tensas-Concordia-Grenada-Carroll-
Montgomery-Webster-Clay-Lowndes-Choctaw-Oktibbeha-Holmes-Attala-
Winston-Noxubee-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-
310 PM CDT Sun Jul 15 2018

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

.DAY ONE...Tonight and Monday

EXCESSIVE HEAT
THREAT...Limited
TIMING...Monday

Highs temperatures in the low to mid 90s will combine with high
humidity to result in heat index values near 105 degrees again
Monday. Precautions should be taken to avoid strenuous outdoor
activities. Check on those vulnerable to heat stress. Stay
hydrated and wear light, loose fitted clothing.

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

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

Highs temperatures in the low to mid 90s will combine with high
humidity to result in heat index values near 105 degrees again
Tuesday. Precautions should be taken to avoid strenuous outdoor
activities. Check on those vulnerable to heat stress. Stay
hydrated and wear light, loose fitted clothing.

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

21

&&

...HAZARD LEGEND...

*EXCESSIVE HEAT*
Extreme...Maximum heat index greater than 110 degrees for 3 or
 more days in a row and/or air temperatures greater than 107
 degrees.
Significant...Maximum heat index greater than 110 degrees
 and/or air temperatures greater than 105 degrees.
Elevated...Maximum heat index 105 to 110 degrees and/or air
 temperatures greater than 103 degrees.
Limited...Maximum heat index near 105 degrees and/or air
 temperatures 100 to 103 degrees.

...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/jan/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

In the hours before

Special weather statement, Jul 15, 2:42 PM CDT, 5 hours 57 minutes before
Special Weather Statement
National Weather Service Jackson MS
242 PM CDT SUN JUL 15 2018

MSZ056-065-066-152030-
Smith MS-Jones MS-Covington MS-
242 PM CDT SUN JUL 15 2018

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN SMITH...NORTHEASTERN
COVINGTON AND NORTHWESTERN JONES COUNTIES UNTIL 330 PM CDT...

At 241 PM CDT, Meteorologists were tracking a strong thunderstorm
over Taylorsville, or 10 miles west of Stringer, moving northwest at
5 mph.

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

This storm will remain over mainly rural areas of southern Smith...
northeastern Covington and northwestern Jones Counties, including the
following locations... Mize.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

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.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3180 8965 3191 8965 3191 8932 3180 8932
      3180 8931 3171 8936
TIME...MOT...LOC 1941Z 128DEG 6KT 3183 8943

DC
Special weather statement, Jul 15, 4:18 PM CDT, 4 hours 21 minutes before
Special Weather Statement
National Weather Service Jackson MS
418 PM CDT SUN JUL 15 2018

MSZ029-152215-
Webster MS-
418 PM CDT SUN JUL 15 2018

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN WEBSTER COUNTY UNTIL
515 PM CDT...

At 418 PM CDT, Meteorologists were tracking a strong thunderstorm
near Bellefontaine, or 18 miles west of Montpelier, moving northeast
at 10 mph.

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

This strong thunderstorm will be near...
  Clarkson around 450 PM CDT.

Other locations impacted by this storm include Walthall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

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.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3362 8912 3357 8924 3357 8948 3372 8949
      3372 8919 3374 8919 3374 8912
TIME...MOT...LOC 2118Z 240DEG 8KT 3368 8927

DC
Special weather statement, Jul 15, 4:44 PM CDT, 3 hours 55 minutes before
Special Weather Statement
National Weather Service Jackson MS
444 PM CDT SUN JUL 15 2018

MSZ029-032-152230-
Choctaw MS-Webster MS-
444 PM CDT SUN JUL 15 2018

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN CHOCTAW AND SOUTHERN
WEBSTER COUNTIES UNTIL 530 PM CDT...

At 444 PM CDT, Meteorologists were tracking a strong thunderstorm
near Eupora, or 20 miles east of Winona, moving east at 15 mph.

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

This strong thunderstorm will be near...
  Eupora around 505 PM CDT.
  Mathiston, Sherwood and Reform around 530 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

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.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3357 8909 3339 8909 3343 8941 3345 8941
      3346 8938 3346 8951 3357 8951 3357 8924
      3362 8912
TIME...MOT...LOC 2144Z 277DEG 13KT 3354 8938

DC
Special weather statement, Jul 15, 4:55 PM CDT, 3 hours 44 minutes before
Special Weather Statement
National Weather Service Jackson MS
455 PM CDT SUN JUL 15 2018

MSZ073-074-152245-
Lamar MS-Forrest MS-
455 PM CDT SUN JUL 15 2018

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN FORREST AND
SOUTHEASTERN LAMAR COUNTIES UNTIL 545 PM CDT...

At 455 PM CDT, Meteorologists were tracking a strong thunderstorm
near Wiggins, moving east at 15 mph.

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

This storm will remain over mainly rural areas of southeastern
Forrest and southeastern Lamar Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

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.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3100 8934 3101 8935 3101 8942 3098 8943
      3098 8947 3100 8948 3100 8950 3101 8950
      3101 8955 3112 8955 3101 8915 3100 8915
      3100 8914 3091 8914 3091 8934
TIME...MOT...LOC 2155Z 292DEG 15KT 3092 8915

DC
Special weather statement, Jul 15, 5:25 PM CDT, 3 hours 14 minutes before
Special Weather Statement
National Weather Service Jackson MS
525 PM CDT SUN JUL 15 2018

MSZ026-028-029-152315-
Grenada MS-Montgomery MS-Webster MS-
525 PM CDT SUN JUL 15 2018

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN GRENADA...
NORTHWESTERN WEBSTER AND NORTH CENTRAL MONTGOMERY COUNTIES UNTIL 615
PM CDT...

At 524 PM CDT, Meteorologists were tracking a strong thunderstorm
near Misterton, or 17 miles northeast of Winona, moving southeast at
15 mph.

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

This strong thunderstorm will be near...
  Embry around 550 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

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.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3373 8951 3372 8937 3357 8927 3357 8951
      3365 8963 3373 8960
TIME...MOT...LOC 2224Z 320DEG 13KT 3367 8951

DC
Special weather statement, Jul 15, 8:39 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 3:16 AM CDTHeat AdvisoryJANAdams, Attala, Bolivar, Carroll, Claiborne, Clarke and 32 more16 hr
Jul 16, 1:15 PM CDTSpecial Weather StatementJANKemper, Noxubee30 min
Jul 16, 1:18 PM CDTSpecial Weather StatementJANSmith27 min
Jul 16, 1:46 PM CDTSpecial Weather StatementJANKemper44 min
Jul 16, 1:49 PM CDTSpecial Weather StatementJANSmith26 min
Jul 16, 2:28 PM CDTSpecial Weather StatementJANLauderdale, Newton47 min
Jul 16, 2:31 PM CDTSpecial Weather StatementJANCovington44 min
Jul 16, 3:03 PM CDTSpecial Weather StatementJANWinston42 min
Jul 16, 3:06 PM CDTSpecial Weather StatementJANClarke, Lauderdale54 min
Jul 16, 3:29 PM CDTSpecial Weather StatementJANLamar46 min
Jul 16, 3:53 PM CDTSpecial Weather StatementJANClarke52 min
Jul 16, 4:06 PM CDTSpecial Weather StatementJANHumphreys54 min
Jul 16, 4:12 PM CDTSpecial Weather StatementJANNeshoba48 min
Jul 16, 4:15 PM CDTSevere Thunderstorm WarningJANAttala, Holmes45 min
Jul 16, 4:28 PM CDTSevere Thunderstorm WarningJANHumphreys, Yazoo28 min
Jul 16, 4:33 PM CDTSpecial Weather StatementJANMadison42 min
Jul 16, 4:43 PM CDTSpecial Weather StatementJANLeake32 min
Jul 16, 4:51 PM CDTSevere Thunderstorm WarningJANRankin, Scott39 min
Jul 16, 5:13 PM CDTSevere Thunderstorm WarningJANMadison, Rankin47 min
Jul 16, 5:37 PM CDTSevere Thunderstorm WarningJANHinds, Madison, Rankin, Yazoo53 min
Jul 16, 6:09 PM CDTFlash Flood WarningJANMadison, Rankin3 hr
Jul 16, 6:13 PM CDTSpecial Weather StatementJANRankin47 min
Jul 16, 6:31 PM CDTFlash Flood WarningJANHinds, Rankin2 hr
Jul 16, 6:53 PM CDTSpecial Weather StatementJANWarren52 min
Jul 16, 6:56 PM CDTSpecial Weather StatementJANCarroll49 min
Jul 16, 5:50 PM CDTSpecial Weather StatementJANEast Carroll55 min

Nearby

Special Weather Statements in Mississippi, 2018Every special weather statement in 2018

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.