Alert archive / Mississippi / Flash Flood Warnings in 2017

Flash Flood Warning 113, NWS Jackson, MS

August 9, 2017Hinds County, Madison County, Rankin County, Mississippi

NWS Jackson, MS issued this flash flood warning at Aug 9, 2017, 4:48 PM CDT for Hinds County, Madison County, Rankin County, Mississippi. It was in force for 3 hr. 7 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 9, 2017, 4:48 PM CDT (21:48 UTC)
Expired
Aug 9, 2017, 7:45 PM CDT
In force
3 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

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

The radar

The Jackson/Brandon,MS radar (KDGX), 12 km from the middle of the area, began a volume at 21:47 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.

What was reported inside it

TimeReportWhereRemark
Aug 9, 5:00 PM CDTFLASH FLOOD1 Se Jackson, MSFLOODING HAD OCCURRED ON MONUMENT AND PALMYRA STREETS. SOMEONE HAD TO BE RESCUED FROM A VEHICLE.
Aug 9, 5:00 PM CDTFLASH FLOOD1 Ssw Jackson, MSEASTVIEW STREET WAS FLOODED.
Aug 9, 5:10 PM CDTFLASH FLOOD7 Ese Terry, MSFLASH FLOODING REPORTED ON POPLAR SPRINGS ROAD IN SOUTHERN RANKIN COUNTY.
Aug 9, 5:20 PM CDTFLASH FLOOD2 Sse Richland, MSFLASH FLOODING REPORTED ON US 49 SB AT CLEARY ROAD.
Aug 9, 5:30 PM CDTFLASH FLOOD2 Sse Jackson, MSFLASH FLOODING ON WINTER STREET, WITH WATER IN YARDS & ENTERING A HOME.
Aug 9, 5:35 PM CDTFLASH FLOOD2 Wnw Flowood, MSFLASH FLOODING IN THE EASTOVER SUBDIVISION OF JACKSON.
Aug 9, 5:56 PM CDTFLASH FLOOD1 Sw Jackson, MSMULTIPLE RESIDENTIAL STREETS FLOODED AROUND JACKSON.

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, 9.8 hours before the alert went out and 4 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 2017-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 786 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 2017-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.193958Sfc1 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
786 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
700 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

041 
WGUS54 KJAN 092148
FFWJAN
MSC049-089-121-100045-
/O.NEW.KJAN.FF.W.0113.170809T2148Z-170810T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
448 PM CDT WED AUG 9 2017

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Western Rankin County in central Mississippi...
  Eastern Hinds County in central Mississippi...
  Southwestern Madison County in central Mississippi...

* Until 745 PM CDT

* At 447 PM CDT, Doppler radar indicated heavy rain across the 
  warned area. One to two inches of rain have already fallen or is 
  expected to fall over already saturated soils and areas that have 
  experienced recent flooding. Flash flooding is expected to begin 
  shortly.

* Some locations that will experience flooding include...
  Jackson, Clinton, Pearl, Madison, Ridgeland, Brandon, Byram,
  Flowood, Richland, Florence, Raymond, Terry, Pocahontas, Whites,
  Monterey and Fannin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3251 8992 3220 8994 3205 9011 3205 9038
      3251 9041

$$

TW
1 follow-up statement
891 
WGUS74 KJAN 092238
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
538 PM CDT WED AUG 9 2017

MSC049-089-121-100045-
/O.CON.KJAN.FF.W.0113.000000T0000Z-170810T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Rankin MS-Hinds MS-Madison MS-
538 PM CDT WED AUG 9 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
WESTERN RANKIN...EASTERN HINDS AND SOUTHWESTERN MADISON COUNTIES...

At 534 PM CDT, local law enforcement and the Mississippi Department 
of Transportation reported multiple flooded roads across the warned 
area, especially southern Rankin County. One to two inches of rain 
have already fallen over saturated soils. Flash flooding is 
either ongoing or expected to begin shortly.

Some locations that will experience flooding include...
Jackson, Clinton, Pearl, Madison, Ridgeland, Brandon, Byram, Flowood,
Richland, Florence, Raymond, Terry, Pocahontas, Whites, Monterey and
Fannin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3251 8992 3220 8994 3205 9011 3205 9038
      3251 9041

$$

TW

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 9:21 PM CDTFlash Flood WarningJANHumphreys, Issaquena, Sharkey, Washington3 hr
Aug 9, 1:21 PM CDTFlash Flood WarningJANKemper, Neshoba, Noxubee, Winston3 hr
Aug 9, 3:18 PM CDTSpecial Weather StatementJANLauderdale42 min
Aug 9, 3:28 PM CDTSpecial Weather StatementJANHinds47 min
Aug 9, 5:14 PM CDTSpecial Weather StatementJANRankin46 min
Aug 9, 5:27 PM CDTSevere Thunderstorm WarningJANHinds, Madison, Rankin36 min
Aug 9, 6:34 PM CDTFlash Flood WarningJANForrest, Jones3 hr
Aug 9, 6:44 PM CDTSpecial Weather StatementJANJones31 min
Aug 9, 6:48 PM CDTSevere Thunderstorm WarningJANJones42 min

Nearby

Flash Flood Warnings in Mississippi, 2017Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.