Alert archive / Mississippi / Flash Flood Warnings in 2021

Flash Flood Warning 63, NWS Jackson, MS

July 10, 2021Adams County, Franklin County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jul 10, 2021, 10:19 AM CDT for Adams County, Franklin 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 10, 2021, 10:19 AM CDT (15:19 UTC)
Expired: Jul 10, 2021, 1:15 PM CDT
In force: 3 hr
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

Counties Adams County, MS, Franklin County, MS

What was reported inside it

Time	Report	Where	Remark
Jul 10, 11:15 AM CDT	FLASH FLOOD	2 Nw Roxie, MS	FLASH FLOODING STRANDED A VEHICLE AND NEARED A MOBILE HOME ALONG TOWER RD NEAR ROXIE.

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, 3.3 hours before the alert went out and 134 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: 1533 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 672 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 59 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

021 
WGUS54 KJAN 101519
FFWJAN
MSC001-037-101815-
/O.NEW.KJAN.FF.W.0063.210710T1519Z-210710T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
1019 AM CDT Sat Jul 10 2021

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  East Central Adams County in southwestern Mississippi...
  Northwestern Franklin County in southwestern Mississippi...

* Until 115 PM CDT.

* At 1019 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain in the Stanton, Cranfield, Hamburg, and Roxie areas. 
  Between 3 and 5 inches of rain have fallen over the last two 
  hours. The expected rainfall rate is 2 to 3 inches per hour. 
  Additional rainfall amounts of 2 to 3 inches 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...
  Natchez, Cranfield, Hamburg, Stanton, Kirby and Roxie.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3138 9117 3138 9120 3142 9126 3147 9129
      3152 9130 3155 9132 3158 9133 3160 9133
      3161 9131 3163 9125 3163 9115 3161 9115
      3161 9091 3159 9089 3157 9089 3156 9090
      3152 9096 3145 9104

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...2-3 INCHES IN 1 HOUR

$$

NF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 4:36 PM CDT	Special Weather Statement	JAN	Lowndes	24 min
Jul 10, 5:04 PM CDT	Special Weather Statement	JAN	Lowndes	41 min

Nearby

Flash Flood Warnings in Mississippi, 2021 Every 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.