Alert archive / Mississippi / Flash Flood Warnings in 2017

Flash Flood Warning 89, NWS Jackson, MS

July 24, 2017Forrest County, Lamar County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jul 24, 2017, 10:57 AM CDT for Forrest County, Lamar 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: Jul 24, 2017, 10:57 AM CDT (15:57 UTC)
Expired: Jul 24, 2017, 2:00 PM CDT
In force: 3 hr
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

Counties Forrest County, MS, Lamar County, MS

What was reported inside it

Time	Report	Where	Remark
Jul 24, 12:50 PM CDT	FLASH FLOOD	8 Ese Lumberton, MS	ENTREKIN RD IS FLOODED IN MULTIPLE SPOTS NEAR HAVARD RD.

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

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 4.0 hours before the alert went out and 88 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: 2227 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 639 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

564 
WGUS54 KJAN 241557
FFWJAN
MSC035-073-241900-
/O.NEW.KJAN.FF.W.0089.170724T1557Z-170724T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
1057 AM CDT MON JUL 24 2017

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Southeastern Forrest County in southeastern Mississippi...
  Southern Lamar County in southeastern Mississippi...

* Until 200 PM CDT

* At 1056 AM CDT, Doppler radar indicated heavy rain across the 
  warned area. Three to five inches of rain have fallen. Flash 
  flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Purvis, Lumberton, Brooklyn, Maxie, Rock Hill and Baxterville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3100 8934 3101 8935 3101 8942 3098 8943
      3098 8947 3100 8948 3100 8950 3101 8950
      3101 8955 3100 8955 3100 8965 3117 8965
      3115 8914 3091 8914 3091 8934

$$

19

1 follow-up statement

383 
WGUS74 KJAN 241806
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
106 PM CDT MON JUL 24 2017

MSC035-073-241900-
/O.CON.KJAN.FF.W.0089.000000T0000Z-170724T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Forrest MS-Lamar MS-
106 PM CDT MON JUL 24 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR
SOUTHEASTERN FORREST AND SOUTHERN LAMAR COUNTIES...

At 106 PM CDT, Doppler radar indicated heavy rain across the warned 
area. Radar indicates six to eight inches of rain have fallen across 
far southern Lamar and Forrest counties. Flash flooding is expected 
to begin shortly.

Some locations that will experience flooding include...
Purvis, Lumberton, Brooklyn, Maxie, Rock Hill and Baxterville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3100 8934 3101 8935 3101 8942 3098 8943
      3098 8947 3100 8948 3100 8950 3101 8950
      3101 8955 3100 8955 3100 8965 3117 8965
      3115 8914 3091 8914 3091 8934

$$

DL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 24, 6:26 AM CDT	Special Weather Statement	JAN	Lamar	64 min
Jul 24, 7:14 AM CDT	Flash Flood Warning	JAN	Forrest	3 hr
Jul 24, 10:42 AM CDT	Special Weather Statement	JAN	Copiah, Jefferson Davis, Lawrence, Lincoln	63 min
Jul 24, 11:01 AM CDT	Flash Flood Warning	JAN	Copiah, Lincoln	3 hr
Jul 24, 11:22 AM CDT	Flash Flood Watch	JAN	Copiah, Covington, Forrest, Jefferson Davis, Jones, Lamar and 4 more	8 hr
Jul 24, 12:20 PM CDT	Special Weather Statement	JAN	Rankin	55 min
Jul 24, 12:35 PM CDT	Special Weather Statement	JAN	Jefferson Davis, Lawrence	55 min
Jul 24, 12:52 PM CDT	Flash Flood Warning	JAN	Rankin	98 min
Jul 24, 1:35 PM CDT	Special Weather Statement	JAN	Franklin, Lincoln	55 min
Jul 24, 1:40 PM CDT	Special Weather Statement	JAN	Claiborne	50 min
Jul 24, 1:57 PM CDT	Flash Flood Warning	JAN	Forrest, Lamar	3 hr
Jul 24, 1:59 PM CDT	Areal Flood Warning	JAN	Lincoln	3 hr
Jul 24, 2:31 PM CDT	Special Weather Statement	JAN	Marion	44 min
Jul 24, 2:37 PM CDT	Special Weather Statement	JAN	Claiborne	38 min
Jul 24, 3:58 PM CDT	Special Weather Statement	JAN	Yazoo	32 min
Jul 24, 4:13 PM CDT	Special Weather Statement	JAN	Holmes	32 min
Jul 24, 4:33 PM CDT	Special Weather Statement	JAN	Attala	27 min
Jul 24, 4:37 PM CDT	Special Weather Statement	JAN	Attala	23 min
Jul 24, 4:50 PM CDT	Special Weather Statement	JAN	Sharkey	25 min
Jul 24, 4:53 PM CDT	Special Weather Statement	JAN	Holmes	37 min
Jul 24, 4:58 PM CDT	Special Weather Statement	JAN	Sunflower	32 min
Jul 24, 5:21 PM CDT	Flash Flood Warning	JAN	Attala, Holmes	3 hr
Jul 24, 5:25 PM CDT	Special Weather Statement	JAN	Sharkey	35 min
Jul 24, 5:36 PM CDT	Special Weather Statement	JAN	Leflore	24 min
Jul 24, 5:45 PM CDT	Special Weather Statement	JAN	Noxubee	30 min
Jul 24, 5:58 PM CDT	Special Weather Statement	JAN	Webster	32 min
Jul 24, 6:19 PM CDT	Special Weather Statement	JAN	Oktibbeha	26 min
Jul 24, 6:22 PM CDT	Severe Thunderstorm Warning	JAN	Oktibbeha	24 min
Jul 24, 6:30 PM CDT	Special Weather Statement	JAN	Sharkey	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.