Alert archive / Mississippi / Flash Flood Warnings in 2017

Flash Flood Warning 6, NWS Jackson, MS

January 19, 20174 counties in Mississippi

NWS Jackson, MS issued this flash flood warning at Jan 19, 2017, 11:08 AM CST for 4 counties in 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: Jan 19, 2017, 11:08 AM CST (17:08 UTC)
Expired: Jan 19, 2017, 2:00 PM CST
In force: 3 hr
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

Counties Copiah County, MS, Franklin County, MS, Jefferson County, MS, Lincoln County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 67 km from the middle of the area, began a volume at 17:12 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
Jan 19, 11:51 AM CST	FLASH FLOOD	Brookhaven, MS	ROAD FLOODED BEHIND HOME DEPOT IN BROOKHAVEN.

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, 5.1 hours before the alert went out and 67 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: 281 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 530 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 151 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

As transmitted.

762 
WGUS54 KJAN 191708
FFWJAN
MSC029-037-063-085-192000-
/O.NEW.KJAN.FF.W.0006.170119T1708Z-170119T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
1108 AM CST THU JAN 19 2017

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Copiah County in central Mississippi...
  Franklin County in southwestern Mississippi...
  Lincoln County in south central Mississippi...
  Southeastern Jefferson County in southwestern Mississippi...

* Until 200 PM CST

* At 1107 AM CST, local law enforcement officials reported flash
  flooding across the warned area on roadways. Three to four inches
  of rain have fallen this morning. Flash flooding is already
  occurring.

* Some locations that will experience flooding include...
  Brookhaven, Crystal Springs, Hazlehurst, Wesson, Bude, Enterprise,
  Loyd Star, Gallman, West Lincoln, Pleasant Hill, New Hope,
  Rockport, Vaughn, Dentville, Union Church, Hopewell, Barlow,
  Martinsville, Mccall Creek and Glancy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3136 9109 3161 9097 3179 9074 3205 9068
      3205 9023 3203 9025 3202 9022 3201 9023
      3194 9020 3189 9015 3185 9014 3184 9016
      3182 9013 3180 9015 3177 9011 3177 9013
      3175 9012 3172 9024 3152 9026 3136 9065

$$

17

1 follow-up statement

731 
WGUS74 KJAN 191845
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
1245 PM CST THU JAN 19 2017

MSC029-037-063-085-192000-
/O.CON.KJAN.FF.W.0006.000000T0000Z-170119T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Copiah MS-Franklin MS-Lincoln MS-Jefferson MS-
1245 PM CST THU JAN 19 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 PM CST FOR
COPIAH...FRANKLIN...LINCOLN AND SOUTHEASTERN JEFFERSON COUNTIES...

At 1242 PM CST, public reported some water on the road in the back
Home Depot in Brookhaven.  Up to three inches of rain have already
fallen. Flash flooding is occurring on some roadways and is receding.

Some locations that will experience flooding include...
Brookhaven, Crystal Springs, Hazlehurst, Wesson, Bude, Enterprise,
Loyd Star, Gallman, West Lincoln, Pleasant Hill, New Hope, Rockport,
Vaughn, Dentville, Union Church, Hopewell, Barlow, Martinsville,
Mccall Creek and Glancy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3136 9109 3161 9097 3179 9074 3205 9068
      3205 9023 3203 9025 3202 9022 3201 9023
      3194 9020 3189 9015 3185 9014 3184 9016
      3182 9013 3180 9015 3177 9011 3177 9013
      3175 9012 3172 9024 3152 9026 3136 9065

$$

17

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 19, 4:57 AM CST	Special Weather Statement	JAN	Lincoln	33 min
Jan 19, 5:14 AM CST	Severe Thunderstorm Warning	JAN	Franklin, Lincoln	46 min
Jan 19, 6:27 AM CST	Tornado Warning	JAN	Copiah	31 min
Jan 19, 7:20 AM CST	Flash Flood Warning	JAN	Copiah	3 hr
Jan 19, 7:23 AM CST	Flash Flood Warning	JAN	Franklin, Jefferson, Lincoln	3 hr
Jan 19, 7:43 AM CST	Tornado Warning	JAN	Simpson, Smith	62 min
Jan 19, 8:32 AM CST	Special Weather Statement	JAN	Lawrence	28 min
Jan 19, 8:41 AM CST	Tornado Warning	JAN	Scott, Smith	37 min
Jan 19, 9:01 AM CST	Flash Flood Warning	JAN	Simpson, Smith	3 hr
Jan 19, 10:46 AM CST	Flash Flood Warning	JAN	Franklin	6 hr
Jan 19, 12:34 PM CST	Flash Flood Warning	JAN	Franklin	3 hr
Jan 19, 4:29 PM CST	Special Weather Statement	JAN	Madison, Rankin	31 min
Jan 19, 4:39 PM CST	Tornado Warning	JAN	Hinds, Madison, Rankin	27 min
Jan 19, 4:51 PM CST	Severe Thunderstorm Warning	JAN	Attala, Holmes, Leake, Madison, Rankin, Scott	30 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.