Alert archive / Mississippi / Flash Flood Warnings in 2017

Flash Flood Warning 46, NWS Jackson, MS

May 29, 2017Hinds County, Madison County, Rankin County, Mississippi

NWS Jackson, MS issued this flash flood warning at May 29, 2017, 12:00 AM CDT for Hinds County, Madison County, Rankin County, Mississippi. It was in force for 3 hr. 1 report 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: May 29, 2017, 12:00 AM CDT (05:00 UTC)
Expired: May 29, 2017, 3:00 AM 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), 5 km from the middle of the area, began a volume at 05:01 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

Time	Report	Where	Remark
May 29, 2:00 AM CDT	FLASH FLOOD	1 Ese Brandon, MS	SIGNIFICANT STREET FLOODING ON MEADOW LANE DRIVE IN BRANDON. REPORT RELAYED THROUGH 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 00:00Z, 5.0 hours before the alert went out and 6 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 249 J/kg
Mixed-layer CIN: -296 J/kg
Mixed-layer LCL: 1502 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

095 
WGUS54 KJAN 290500
FFWJAN
MSC049-089-121-290800-
/O.NEW.KJAN.FF.W.0046.170529T0500Z-170529T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
1200 AM CDT MON MAY 29 2017

The National Weather Service in Jackson has issued a

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

* Until 300 AM CDT

* At 1200 AM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Flash flooding is expected to
  begin shortly.

* Some locations that will experience flooding include...
  Jackson, Clinton, Pearl, Madison, Ridgeland, Brandon, Byram,
  Flowood, Richland, Star, Florence, Pelahatchie, Terry, Leesburg,
  Pocahontas, Goshen Springs, Piney Woods, Pisgah, Cato and
  Gluckstadt.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3205 9040 3250 9031 3262 8976 3258 8978
      3236 8973 3205 8973

$$

EC

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 9:37 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Jefferson	68 min
May 28, 10:51 PM CDT	Special Weather Statement	JAN	Claiborne, Copiah, Hinds, Warren	54 min
May 28, 11:18 PM CDT	Severe Thunderstorm Warning	JAN	Hinds	57 min
May 28, 11:45 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Rankin	60 min
May 29, 12:12 AM CDT	Special Weather Statement	JAN	Simpson	48 min
May 29, 12:39 AM CDT	Special Weather Statement	JAN	Scott, Smith	36 min
May 29, 12:58 AM CDT	Severe Thunderstorm Warning	JAN	Jasper, Newton, Scott, Smith	47 min
May 29, 1:47 AM CDT	Special Weather Statement	JAN	Clarke, Jasper, Lauderdale, Newton	58 min

Nearby

Flash Flood Warnings in Mississippi, 2017 Every 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.