Alert archive / Mississippi / Flash Flood Warnings in 2018

Flash Flood Warning 71, NWS Jackson, MS

August 17, 2018Hinds County, Madison County, Rankin County, Mississippi

NWS Jackson, MS issued this flash flood warning at Aug 17, 2018, 5:24 PM CDT for Hinds County, Madison County, Rankin County, Mississippi. It was in force for 2 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 17, 2018, 5:24 PM CDT (22:24 UTC)
Expired
Aug 17, 2018, 7:30 PM CDT
In force
2 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

Counties Hinds County, MS, Madison County, MS, Rankin County, MS

What was reported inside it

TimeReportWhereRemark
Aug 17, 5:30 PM CDTFLASH FLOOD2 Ne Madison, MSTWO HOMES WERE FLOODED, 1 IN HUNTERS POINT AND 1 IN HIGHLAND RIDGE SUBDIVISIONS.
Aug 17, 5:49 PM CDTFLASH FLOOD3 Nw Flowood, MSWATER COVERING THE INTERSECTION OF RIDGEWOOD RD AND WILHURST ST. PICTURE RELAYED VIA SOCIAL MEDIA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.4 hours before the alert went out and 14 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 2018-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1646 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2018-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 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
1646 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
698 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

823 
WGUS54 KJAN 172224
FFWJAN
MSC049-089-121-180030-
/O.NEW.KJAN.FF.W.0071.180817T2224Z-180818T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
524 PM CDT FRI AUG 17 2018

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Central Rankin County in central Mississippi...
  Southeastern Hinds County in central Mississippi...
  Southeastern Madison County in central Mississippi...

* Until 730 PM CDT.

* At 523 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across portions of the Jackson metro area. Up to two 
  inches of rain have already fallen. Flash flooding is expected to 
  begin shortly.

* Some locations that will experience flooding include...
  Jackson, Clinton, Pearl, Madison, Ridgeland, Canton, Byram,
  Flowood, Richland, Raymond, Terry, Utica, Dry Grove, Goshen
  Springs, Gluckstadt, Whites, Annandale, Fannin and Learned.

Additional rainfall amounts of two inches are possible in the warned 
area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3260 8978 3205 9022 3205 9065 3221 9059
      3236 9041 3259 9014

$$

EC
1 follow-up statement
331 
WGUS74 KJAN 180026
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
726 PM CDT FRI AUG 17 2018

MSC049-089-121-180036-
/O.EXP.KJAN.FF.W.0071.000000T0000Z-180818T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Rankin MS-Hinds MS-Madison MS-
726 PM CDT FRI AUG 17 2018

...THE FLASH FLOOD WARNING FOR CENTRAL RANKIN...SOUTHEASTERN HINDS
AND SOUTHEASTERN MADISON COUNTIES WILL EXPIRE AT 730 PM CDT...

The heavy rain has ended. Flood waters have receded. Flooding is no
longer expected to pose a threat. Please continue to heed any
remaining road closures.

LAT...LON 3260 8978 3205 9022 3205 9065 3221 9059
      3236 9041 3259 9014

$$

NF

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 7:55 PM CDTSpecial Weather StatementJANKemper50 min
Aug 16, 8:07 PM CDTSevere Thunderstorm WarningJANKemper53 min
Aug 16, 8:29 PM CDTSpecial Weather StatementJANNeshoba61 min
Aug 17, 1:06 PM CDTSevere Thunderstorm WarningJANWashington39 min
Aug 17, 1:16 PM CDTSpecial Weather StatementJANJasper29 min
Aug 17, 1:33 PM CDTSpecial Weather StatementJANJones27 min
Aug 17, 1:50 PM CDTSpecial Weather StatementJANSharkey25 min
Aug 17, 1:52 PM CDTFlash Flood WarningJANJones2 hr
Aug 17, 2:01 PM CDTSpecial Weather StatementJANClarke29 min
Aug 17, 2:03 PM CDTSpecial Weather StatementJANWashington27 min
Aug 17, 2:22 PM CDTSevere Thunderstorm WarningJANHumphreys, Sunflower27 min
Aug 17, 2:25 PM CDTSpecial Weather StatementJANIssaquena, Sharkey35 min
Aug 17, 2:31 PM CDTSpecial Weather StatementJANForrest29 min
Aug 17, 2:47 PM CDTSpecial Weather StatementJANWinston28 min
Aug 17, 3:09 PM CDTSpecial Weather StatementJANIssaquena, Sharkey, Yazoo51 min
Aug 17, 3:17 PM CDTSpecial Weather StatementJANCarroll, Leflore43 min
Aug 17, 4:05 PM CDTSpecial Weather StatementJANWarren25 min
Aug 17, 4:20 PM CDTSpecial Weather StatementJANRankin25 min
Aug 17, 4:25 PM CDTSpecial Weather StatementJANMontgomery50 min
Aug 17, 4:50 PM CDTSpecial Weather StatementJANMadison, Rankin40 min
Aug 17, 4:53 PM CDTSevere Thunderstorm WarningJANRankin, Scott52 min
Aug 17, 4:55 PM CDTSevere Thunderstorm WarningJANMadison, Rankin50 min
Aug 17, 4:58 PM CDTSevere Thunderstorm WarningJANAttala47 min
Aug 17, 5:11 PM CDTSevere Thunderstorm WarningJANChoctaw, Webster34 min
Aug 17, 5:37 PM CDTSevere Thunderstorm WarningJANChoctaw, Oktibbeha42 min
Aug 17, 5:45 PM CDTSevere Thunderstorm WarningJANRankin51 min
Aug 17, 5:49 PM CDTSpecial Weather StatementJANWebster41 min
Aug 17, 5:54 PM CDTSpecial Weather StatementJANLeake51 min
Aug 17, 6:03 PM CDTSpecial Weather StatementJANWinston27 min
Aug 17, 6:12 PM CDTSpecial Weather StatementJANSimpson48 min
Aug 17, 6:34 PM CDTSevere Thunderstorm WarningJANClaiborne56 min

Nearby

Flash Flood Warnings in Mississippi, 2018Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.