Alert archive / Mississippi / Flash Flood Warnings in 2017

Flash Flood Warning 95, NWS Jackson, MS

July 25, 20174 counties in Mississippi

NWS Jackson, MS issued this flash flood warning at Jul 25, 2017, 10:49 AM CDT for 4 counties in 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
Jul 25, 2017, 10:49 AM CDT (15:49 UTC)
Expired
Jul 25, 2017, 1:45 PM CDT
In force
3 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

Counties Covington County, MS, Jefferson Davis County, MS, Lawrence County, MS, Simpson County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 54 km from the middle of the area, began a volume at 15:51 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
Jul 25, 11:15 AM CDTFLASH FLOODNew Hebron, MSFLASH FLOODING OCCURRING DUE TO WATER ON CHERRY STREET EXTENSION & FERGUSON MILL ROAD.
Jul 25, 11:35 AM CDTFLASH FLOODNew Hebron, MSLOCAL RESTAURANT, HAMBURGER HOUSE, HAD 10-12'' OF WATER INSIDE.
Jul 25, 12:00 PM CDTFLASH FLOOD4 S New Hebron, MSMDOT CLOSED MS 43 BETWEEN SILVER CREEK AND MS 478 DUE TO FLOODING.
Jul 25, 12:00 PM CDTFLASH FLOODNew Hebron, MSNUMEROUS ROADS IN DOWNTOWN NEW HEBRON FLOODED; INCLUDING HWY 43 (NORTH AND SOUTH) AND HWY 42.
Jul 25, 12:00 PM CDTFLASH FLOODNew Hebron, MSWATER ENTERING HOMES AROUND CHERRY AVE/HWY 43.
Jul 25, 12:30 PM CDTFLASH FLOOD2 Nnw New Hebron, MSMDOT REPORTS HWY 42 BETWEEN NEW HEBRON AND JOE BUCKLEY RD CLOSED DUE TO FLOODING.
Jul 25, 12:40 PM CDTFLASH FLOOD4 N New Hebron, MSFLOODING ON HWY 43 NEAR SHIVERS.

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, 3.8 hours before the alert went out and 59 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 2017-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 806 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 2017-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 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
806 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
788 m above ground
0-6 km bulk shear
1 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

467 
WGUS54 KJAN 251549
FFWJAN
MSC031-065-077-127-251845-
/O.NEW.KJAN.FF.W.0095.170725T1549Z-170725T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
1049 AM CDT TUE JUL 25 2017

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Southeastern Simpson County in central Mississippi...
  Northeastern Lawrence County in south central Mississippi...
  Northwestern Covington County in southeastern Mississippi...
  Northwestern Jefferson Davis County in south central Mississippi...

* Until 145 PM CDT

* At 1048 AM CDT, Doppler radar indicated heavy rain across the
  warned area. Up to two inches of rain have already fallen. Flash
  flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Magee, Pinola, Mount Olive, Clem, Sanatorium, Martinville, Shivers
  and New Hebron.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3174 9016 3175 9012 3177 9013 3178 9011
      3179 9011 3179 9014 3180 9015 3183 9013
      3183 9015 3205 8966 3201 8965 3178 8965
      3178 8964 3168 8964 3160 8997

$$

19
1 follow-up statement
130 
WGUS74 KJAN 251710
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
1210 PM CDT TUE JUL 25 2017

MSC031-065-077-127-251845-
/O.CON.KJAN.FF.W.0095.000000T0000Z-170725T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Simpson MS-Lawrence MS-Covington MS-Jefferson Davis MS-
1210 PM CDT TUE JUL 25 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 PM CDT FOR
SOUTHEASTERN SIMPSON...NORTHEASTERN LAWRENCE...NORTHWESTERN COVINGTON
AND NORTHWESTERN JEFFERSON DAVIS COUNTIES...

At 1205 PM CDT, emergency management reported flash flooding in New 
Hebron in Lawrence County. Three to five inches of rain have already 
fallen across the warned area.

Some locations that will experience flooding include...
Magee, Pinola, Mount Olive, Clem, Sanatorium, Martinville, Shivers
and New Hebron.

Additional rainfall amounts of two to three inches are possible 
in the warned area over the next couple of hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3174 9016 3175 9012 3177 9013 3178 9011
      3179 9011 3179 9014 3180 9015 3183 9013
      3183 9015 3205 8966 3201 8965 3178 8965
      3178 8964 3168 8964 3160 8997

$$

19

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 7:34 PM CDTSpecial Weather StatementJANLowndes26 min
Jul 25, 7:12 AM CDTFlash Flood WarningJANCopiah, Lincoln3 hr
Jul 25, 10:16 AM CDTAreal Flood WarningJANLincoln3 hr
Jul 25, 10:52 AM CDTFlash Flood WarningJANFranklin, Lincoln3 hr
Jul 25, 12:37 PM CDTFlash Flood Warning EmergencyJANLawrence3 hr
Jul 25, 1:11 PM CDTAreal Flood WarningJANFranklin, Lincoln12 hr
Jul 25, 1:18 PM CDTFlash Flood WarningJANJefferson Davis, Lawrence3 hr
Jul 25, 1:23 PM CDTSpecial Weather StatementJANHumphreys52 min
Jul 25, 1:44 PM CDTFlash Flood WarningJANCopiah, Jefferson Davis, Simpson2 hr
Jul 25, 2:18 PM CDTSpecial Weather StatementJANSharkey27 min
Jul 25, 2:32 PM CDTSpecial Weather StatementJANYazoo28 min
Jul 25, 2:52 PM CDTSpecial Weather StatementJANWarren23 min
Jul 25, 3:04 PM CDTSpecial Weather StatementJANYazoo26 min
Jul 25, 3:15 PM CDTSpecial Weather StatementJANCarroll30 min
Jul 25, 3:25 PM CDTAreal Flood WarningJANCopiah, Jefferson Davis, Lawrence, Simpson12 hr
Jul 25, 4:02 PM CDTSpecial Weather StatementJANMadison28 min
Jul 25, 4:27 PM CDTSevere Thunderstorm WarningJANWarren48 min
Jul 25, 4:31 PM CDTSpecial Weather StatementJANNeshoba29 min
Jul 25, 4:34 PM CDTSpecial Weather StatementJANClaiborne26 min
Jul 25, 4:52 PM CDTSevere Thunderstorm WarningJANClaiborne37 min
Jul 25, 5:08 PM CDTSpecial Weather StatementJANBolivar37 min
Jul 25, 5:31 PM CDTSpecial Weather StatementJANJefferson29 min
Jul 25, 6:02 PM CDTSpecial Weather StatementJANWashington28 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.