Alert archive / Mississippi / Flash Flood Warnings in 2021

Flash Flood Warning 60, NWS Jackson, MS

June 24, 2021Forrest County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jun 24, 2021, 7:16 PM CDT for Forrest County, Mississippi. It was in force for 67 min. 3 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
Jun 24, 2021, 7:16 PM CDT (00:16 UTC)
Expired
Jun 24, 2021, 8:23 PM CDT
In force
67 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

County Forrest County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 123 km from the middle of the area, began a volume at 00:17 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
Jun 24, 7:35 PM CDTFLASH FLOOD1 Nw Hattiesburg, MSSTREET FLOODING ALONG HARDY STREET FROM 31ST TO 38TH AVENUE.
Jun 24, 7:35 PM CDTFLASH FLOOD2 E Arnold Line, MSSTREET FLOODING ALONG THORNHILL DRIVE WITH REPORTS OF STALLED VEHICLES.
Jun 24, 7:40 PM CDTFLASH FLOOD2 Nw Hattiesburg, MSTHREE VEHICLES STRANDED DUE TO FLOODED ROADWAYS UNDER THE 4TH STREET BRIDGE.

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 00:00Z, 0.3 hours before the alert went out and 123 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, Slidell Radar S, LA at 00:00Z on 2021-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2371 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, Slidell Radar S, LA at 00:00Z on 2021-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 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
2371 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
951 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

607 
WGUS54 KJAN 250016
FFWJAN
MSC035-250215-
/O.NEW.KJAN.FF.W.0060.210625T0016Z-210625T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
716 PM CDT Thu Jun 24 2021

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  North Central Forrest County in southeastern Mississippi...

* Until 915 PM CDT.

* At 716 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 3 inches of rain 
  have fallen. Additional rainfall amounts up to 1 inch are possible 
  in the warned area. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Hattiesburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3135 8939 3139 8936 3137 8932 3130 8928
      3124 8928 3124 8934 3125 8935 3127 8935
      3128 8935 3130 8935 3131 8935 3133 8935
      3135 8935 3135 8936 3135 8937

FLASH FLOOD...RADAR INDICATED

$$

CME
2 follow-up statements
430 
WGUS74 KJAN 250041
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
741 PM CDT Thu Jun 24 2021

MSC035-250215-
/O.CON.KJAN.FF.W.0060.000000T0000Z-210625T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Forrest MS-
741 PM CDT Thu Jun 24 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 PM CDT THIS 
EVENING FOR NORTH CENTRAL FORREST COUNTY...

At 741 PM CDT, emergency management reported thunderstorms producing 
flash flooding in the Midtown area. Between 2.5 and 3.5 inches of 
rain have fallen. Flash flooding is occurring along Hardy Street 
with some vehicles stalled on Thornhill.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Emergency management reported.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Hattiesburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3135 8939 3139 8936 3137 8932 3130 8928
      3124 8928 3124 8934 3125 8935 3127 8935
      3128 8935 3130 8935 3131 8935 3133 8935
      3135 8935 3135 8936 3135 8937

FLASH FLOOD...OBSERVED

$$

CME
324 
WGUS74 KJAN 250123
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
823 PM CDT Thu Jun 24 2021

MSC035-250133-
/O.CAN.KJAN.FF.W.0060.000000T0000Z-210625T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Forrest MS-
823 PM CDT Thu Jun 24 2021

...FLASH FLOOD WARNING IS CANCELLED FOR NORTH CENTRAL FORREST 
COUNTY...

Flood waters have receded as the heavy rain has ended. Flooding is 
no longer expected to pose a threat. Please continue to heed 
remaining road closures.

LAT...LON 3135 8939 3139 8936 3137 8932 3130 8928
      3124 8928 3124 8934 3125 8935 3127 8935
      3128 8935 3130 8935 3131 8935 3133 8935
      3135 8935 3135 8936 3135 8937

$$

CME

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 8:07 PM CDTSpecial Weather StatementJANSmith23 min

Nearby

Flash Flood Warnings in Mississippi, 2021Every flash flood warning in 2021

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.