Alert archive / Mississippi / Flash Flood Warnings in 2018

Flash Flood Warning 36, NWS Mobile, AL

December 27, 2018Greene County, Perry County, Wayne County, Mississippi

NWS Mobile, AL issued this flash flood warning at Dec 27, 2018, 7:55 PM CST for Greene County, Perry County, Wayne County, Mississippi. It was in force for 7 hr. 6 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: Dec 27, 2018, 7:55 PM CST (01:55 UTC)
Expired: Dec 28, 2018, 3:15 AM CST
In force: 7 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Emergency: Flash flood emergency
Flood severity: None

Counties Greene County, MS, Perry County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 108 km from the middle of the area, began a volume at 01:55 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
Dec 27, 9:00 PM CST	FLASH FLOOD	Richton, MS	REPORTS OF KNEE DEEP WATER IN BUSINESSES IN RICHTON. PICTURES VIA SOCIAL MEDIA.
Dec 27, 9:30 PM CST	FLASH FLOOD	3 Nw Piave, MS	NUMEROUS ROAD CLOSURES DUE TO FLOODING IN NORTHERN GREENE COUNTY.
Dec 27, 10:00 PM CST	FLASH FLOOD	Richton, MS	AT LEAST A DOZEN BUSINESSES AND OVER A DOZEN RESIDENCES FLOODED IN RICHTON. NUMEROUS ROADS FLOODED AND SOME DAMAGED IN THE NORTHERN HALF OF PERRY COUNTY, ROUGHLY NORTH OF HIGHWAY 98.
Dec 27, 10:13 PM CST	HEAVY RAIN 11.5	Clara, MS	REPORT OF 11.5 INCHES OF RAIN (SO FAR) IN THE CLARA COMMUNITY.
Dec 28, 12:00 AM CST	FLASH FLOOD	5 W Piave, MS	7 WATER RESCUES CONDUCTED OVERNIGHT ON UNION ROAD. 8 HOMES FLOODED IN THE LOVEWELL ROAD AND UNION ROAD AREAS.
Dec 28, 3:05 AM CST	FLASH FLOOD	3 W Piave, MS	CHURCH ON LOVEWELL ROAD IS FLOODED.

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, 1.9 hours before the alert went out and 147 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: 11 J/kg
Mixed-layer CIN: -220 J/kg
Mixed-layer LCL: 472 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 220 m²/s²
0-3 km storm-relative helicity: 292 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

251 
WGUS54 KMOB 280155
FFWMOB
MSC041-111-153-280745-
/O.NEW.KMOB.FF.W.0036.181228T0155Z-181228T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
755 PM CST THU DEC 27 2018

...FLASH FLOOD EMERGENCY FOR PERRY, WAYNE AND NORTHWEST GREENE 
COUNTIES IN SOUTHEAST MISSISSIPPI...

The National Weather Service in Mobile has issued a

* Flash Flood Warning for...
  Perry County in southeastern Mississippi...  
  Wayne County in southeastern Mississippi... 
  Northwestern Greene County in southeastern Mississippi...

* Until 145 AM CST Friday.

* At 743 PM CST, emergency management reported very heavy rain 
  across the warned area. Extreme flash flooding is occurring in the 
  warned area with numerous roads closed, and many homes and 
  businesses being threatened.  Water rescues are being reported in 
  Richton, Mississippi.

  This is a FLASH FLOOD EMERGENCY for the Perry, Wayne and Northwest 
  Greene County area. This is a PARTICULARLY DANGEROUS SITUATION. 
  SEEK HIGHER GROUND NOW!

* Some locations that will experience flooding include...
  Waynesboro, Richton, Clara, New Augusta and Buckatunna. 

Additional rainfall amounts of one to three inches are possible in 
the warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now. This is an extremely dangerous and
life-threatening situation. Do not attempt to travel unless you are
fleeing an area subject to flooding or under an evacuation order.

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

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 3143 8915 3143 8894 3158 8894 3181 8848
      3151 8846 3109 8915

$$

1 follow-up statement

315 
WGUS54 KMOB 280725
FFWMOB
MSC041-111-153-280915-
/O.EXT.KMOB.FF.W.0036.000000T0000Z-181228T0915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
125 AM CST FRI DEC 28 2018

...FLASH FLOOD EMERGENCY FOR PERRY, WAYNE AND NORTHWEST GREENE 
COUNTIES IN SOUTHEAST MISSISSIPPI...

The National Weather Service in Mobile has extended the

* Flash Flood Warning for...
  Northern Perry County in southeastern Mississippi...
  Southern Wayne County in southeastern Mississippi...
  Northwestern Greene County in southeastern Mississippi...

* Until 315 AM CST.

* At 122 AM CST, very heavy rain is still ongoing across the warned 
  area. Extreme flash flooding is occurring with numerous roads 
  closed and many homes and businesses being threatened.  Water 
  rescues are being reported. Up to a foot of storm total 
  precipitation has fallen in some locations.

  This is a FLASH FLOOD EMERGENCY for the Perry, Wayne and Northwest 
  Greene County area. This is a PARTICULARLY DANGEROUS SITUATION. 
  SEEK HIGHER GROUND NOW!

* Some locations that will experience flooding include...
  Waynesboro, Richton, Clara, New Augusta and Buckatunna. 

Additional rainfall amounts of 2 to 4 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now. This is an extremely dangerous and
life-threatening situation. Do not attempt to travel unless you are
fleeing an area subject to flooding or under an evacuation order.

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

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 3143 8915 3143 8894 3158 8894 3181 8848
      3151 8846 3109 8915

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 27, 6:13 PM CST	Flash Flood Warning	MOB	Perry, Wayne	6 hr
Dec 27, 6:32 PM CST	Flash Flood Warning	MOB	Greene, Wayne	6 hr
Dec 27, 8:13 PM CST	Special Weather Statement	MOB	Wayne	47 min
Dec 27, 9:41 PM CST	River Flood Warning	MOB	George, Greene, Jackson	15 days
Dec 28, 12:14 AM CST	Flash Flood Warning	MOB	Wayne	3 hr
Dec 28, 1:30 AM CST	Special Weather Statement	MOB	Perry	45 min
Dec 28, 1:43 AM CST	Special Weather Statement	MOB	Wayne	32 min
Dec 28, 2:26 AM CST	Flash Flood Warning	MOB	Greene, Perry, Stone	3 hr
Dec 28, 2:47 AM CST	Tornado Warning	MOB	Greene, Wayne	28 min
Dec 28, 3:14 AM CST	Flash Flood Warning Emergency	MOB	Greene, Perry, Wayne	3 hr
Dec 28, 4:17 AM CST	Special Weather Statement	MOB	George	43 min
Dec 28, 4:27 AM CST	River Flood Warning	MOB	Perry	6 days
Dec 28, 4:45 AM CST	Severe Thunderstorm Warning	MOB	George, Greene	45 min
Dec 28, 4:52 AM CST	Areal Flood Advisory	MOB	George, Greene	3 hr
Dec 28, 6:11 AM CST	River Flood Warning	MOB	Greene, Wayne	3 days
Dec 28, 6:13 AM CST	Areal Flood Warning	MOB	Greene, Perry, Wayne	6 hr
Dec 28, 9:03 AM CST	Areal Flood Warning	MOB	George, Greene, Perry, Wayne	27 hr
Dec 28, 9:57 AM CST	River Flood Warning	MOB	Perry	21 days

Nearby

Flash Flood Warnings in Mississippi, 2018 Every flash flood warning in 2018

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.