Alert archive / Mississippi / Flash Flood Warnings in 2019

Flash Flood Warning 100, NWS Jackson, MS

July 22, 2019Oktibbeha County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jul 22, 2019, 7:31 PM CDT for Oktibbeha County, Mississippi. It was in force for 69 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
Jul 22, 2019, 7:31 PM CDT (00:31 UTC)
Expired
Jul 22, 2019, 8:40 PM CDT
In force
69 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

County Oktibbeha County, MS

The radar

The Columbus AFB radar (KGWX), 73 km from the middle of the area, began a volume at 00:34 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, 0.5 hours before the alert went out and 166 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 00:00Z on 2019-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1535 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, Jackson, MS at 00:00Z on 2019-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
1535 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1081 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Jul 22, 6:59 PM CDT, 32 minutes earlier.

Area forecast discussion, Jul 22, 6:59 PM CDT, 32 minutes before
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Hazardous weather outlook, Jul 22, 3:54 PM CDT, 3 hours 37 minutes before
Hazardous Weather Outlook
National Weather Service Jackson MS
354 PM CDT Mon Jul 22 2019

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
232100-
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-
354 PM CDT Mon Jul 22 2019

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 Tuesday

The probability for widespread hazardous weather is low.

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

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 Sunday.

21

&&

...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

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

In the hours before

Special weather statement, Jul 22, 4:46 PM CDT, 2 hours 45 minutes before
Special Weather Statement
National Weather Service Jackson MS
446 PM CDT Mon Jul 22 2019

LAZ009-MSZ040-041-222215-
East Carroll LA-Sharkey MS-Issaquena MS-
446 PM CDT Mon Jul 22 2019

...STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN EAST CARROLL
PARISH...NORTHWESTERN ISSAQUENA AND SOUTHERN SHARKEY COUNTIES UNTIL
515 PM CDT...

At 446 PM CDT, Meteorologists were tracking strong thunderstorms
along a line extending from near Rolling Fork to near Lake
Providence. Movement was southeast at 15 mph.

Dime size hail and winds in excess of 40 mph will be possible with
these storms.

Strong thunderstorms will be near...
  Transylvania and Fitler around 510 PM CDT.
  Onward and Alsatia around 515 PM CDT.

Other locations impacted by these storms include Cary.

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.

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

&&

LAT...LON 3295 9087 3286 9074 3284 9076 3282 9076
      3281 9074 3282 9073 3281 9069 3280 9071
      3279 9072 3277 9069 3276 9069 3275 9072
      3276 9073 3274 9074 3256 9123 3279 9127
TIME...MOT...LOC 2146Z 334DEG 15KT 3288 9094 3278 9118

NF
Special weather statement, Jul 22, 5:25 PM CDT, 2 hours 6 minutes before
Special Weather Statement
National Weather Service Jackson MS
525 PM CDT Mon Jul 22 2019

MSZ035-036-041-042-222300-
Sharkey MS-Humphreys MS-Yazoo MS-Holmes MS-
525 PM CDT Mon Jul 22 2019

...STRONG THUNDERSTORMS WILL AFFECT SOUTHWESTERN HOLMES...
NORTHWESTERN YAZOO...SOUTHEASTERN HUMPHREYS AND EAST CENTRAL SHARKEY
COUNTIES UNTIL 600 PM CDT...

At 524 PM CDT, Meteorologists were tracking strong thunderstorms
along a line extending from near Thornton to 6 miles north of Holly
Bluff. Movement was southeast at 15 mph.

Winds in excess of 40 mph will be possible with these storms.

Strong thunderstorms will be near...
  Thornton around 540 PM CDT.
  Coxburg and Tolarville around 600 PM CDT.

Other locations impacted by these storms include Eden and Louise.

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 3304 9006 3269 9064 3291 9078 3315 9036
TIME...MOT...LOC 2224Z 307DEG 14KT 3307 9042 3291 9068

NF
Special weather statement, Jul 22, 5:58 PM CDT, 1 hour 33 minutes before
Special Weather Statement
National Weather Service Jackson MS
558 PM CDT Mon Jul 22 2019

MSZ042-222330-
Yazoo MS-
558 PM CDT Mon Jul 22 2019

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL YAZOO COUNTY UNTIL 630
PM CDT...

At 558 PM CDT, Meteorologists were tracking a strong thunderstorm
near Yazoo City, moving southeast at 10 mph.

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

This strong thunderstorm will be near...
  Tinsley around 620 PM CDT.
  Little Yazoo around 630 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.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3286 9036 3276 9020 3263 9044 3276 9053
TIME...MOT...LOC 2258Z 322DEG 8KT 3282 9043

NF
Special weather statement, Jul 22, 6:28 PM CDT, 1 hour 3 minutes before
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Special weather statement, Jul 22, 6:40 PM CDT, 51 minutes before
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Special weather statement, Jul 22, 7:14 PM CDT, 17 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 7:36 PM CDTSpecial Weather StatementJANRankin24 min
Jul 22, 7:59 PM CDTSpecial Weather StatementJANRankin31 min
Jul 22, 8:02 PM CDTSpecial Weather StatementJANClaiborne28 min
Jul 22, 8:31 PM CDTSpecial Weather StatementJANRankin29 min
Jul 22, 10:47 PM CDTFlash Flood WarningJANIssaquena3 hr
Jul 22, 7:14 PM CDTSpecial Weather StatementJANTensas46 min
Jul 22, 10:22 PM CDTSpecial Weather StatementJANEast Carroll38 min

Nearby

Flash Flood Warnings in Mississippi, 2019Every flash flood warning in 2019

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.