Alert archive / Alabama / Flash Flood Warnings in 2018

Flash Flood Warning 35, NWS Mobile, AL

December 27, 20185 counties in Alabama; Greene County, Wayne County, Mississippi

NWS Mobile, AL issued this flash flood warning at Dec 27, 2018, 6:32 PM CST for 5 counties in Alabama; Greene County, Wayne County, Mississippi. It was in force for 6 hr. 5 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, 6:32 PM CST (00:32 UTC)
Expired: Dec 28, 2018, 12:30 AM CST
In force: 6 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

Counties Choctaw County, AL, Clarke County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, Greene County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 152 km from the middle of the area, began a volume at 00:33 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	Fulton, AL	SCHOOL STREET FLOODED IN THE FULTON COMMUNITY.
Dec 27, 9:00 PM CST	FLASH FLOOD	Rural, AL	SEVERAL ROADS IN THE THOMASVILLE AND RURAL COMMUNITIES HAVE WATER OVER THE ROAD. RURAL RD IS CLOSED DUE TO FLOODING.
Dec 27, 10:10 PM CST	FLASH FLOOD	1 W Roundhill, AL	A FOOT OF WATER OVER INDEPENDENCE AVENUE AND LIBERTY LANE IN THOMASVILLE.
Dec 27, 10:30 PM CST	FLASH FLOOD	Fulton, AL	SEVERAL ROADS IN THE FULTON COMMUNITY ARE FLOODED (INCLUDING SWIMMING POOL, HENLEY, AND BASSETT CREEK ROADS).
Dec 28, 12:00 AM CST	FLASH FLOOD	Fulton, AL	A FEW HOMES NEAR SCHOOL STREET NEXT TO BASSETT CREEK ARE 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, 0.5 hours before the alert went out and 207 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.

934 
WGUS54 KMOB 280032
FFWMOB
ALC023-025-099-129-131-MSC041-153-280630-
/O.NEW.KMOB.FF.W.0035.181228T0032Z-181228T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

The National Weather Service in Mobile has issued a

* Flash Flood Warning for...
  North central Monroe County in south central Alabama...
  Central Choctaw County in southwestern Alabama...
  Northern Washington County in southwestern Alabama...
  Clarke County in southwestern Alabama...
  Western Wilcox County in south central Alabama...
  Southeastern Wayne County in southeastern Mississippi...
  Northeastern Greene County in southeastern Mississippi...

* Until 1230 AM CST.

* At 630 PM CST, Doppler radar indicated heavy rain across the 
  warned area. Up to three inches of rain have already fallen. Flash 
  flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Thomasville, Butler, Grove Hill, Chatom, Saint Stephens, Leroy,
  Whatley, Pine Hill, Millry, State Line, Coffeeville, Fulton,
  Gilbertown, Yellow Bluff and Toxey.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3227 8744 3224 8740 3166 8736 3129 8869
      3180 8819 3190 8847 3211 8844 3211 8805
      3209 8804 3206 8807 3205 8812 3202 8812
      3199 8810 3201 8809 3199 8807 3199 8767
      3201 8762 3213 8762 3213 8752 3226 8752

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 27, 6:57 PM CST	River Flood Warning	MOB	Covington, Escambia	16 hr
Dec 27, 6:59 PM CST	Special Weather Statement	MOB	Clarke	46 min
Dec 27, 7:00 PM CST	River Flood Warning	MOB	Baldwin	16 hr
Dec 27, 7:05 PM CST	Areal Flood Advisory	MOB	Butler, Clarke, Conecuh, Covington, Crenshaw, Monroe and 1 more	3 hr
Dec 27, 8:24 PM CST	River Flood Warning	MOB	Dallas, Monroe, Wilcox	13 days
Dec 27, 8:24 PM CST	River Flood Warning	MOB	Clarke, Monroe, Wilcox	15 days
Dec 27, 8:39 PM CST	Flash Flood Warning	MOB	Choctaw	6 hr
Dec 27, 10:02 PM CST	Areal Flood Advisory	MOB	Butler, Conecuh, Covington, Crenshaw, Monroe, Wilcox	3 hr
Dec 28, 12:29 AM CST	Flash Flood Warning	MOB	Choctaw, Clarke, Washington	3 hr
Dec 28, 2:13 AM CST	Marine Dense Fog Advisory	MOB		16 hr
Dec 28, 2:28 AM CST	Special Weather Statement	MOB	Choctaw	47 min
Dec 28, 2:30 AM CST	Severe Thunderstorm Warning	MOB	Choctaw	45 min
Dec 28, 2:47 AM CST	Tornado Warning	MOB	Washington	28 min
Dec 28, 3:08 AM CST	Special Weather Statement	MOB	Clarke	37 min
Dec 28, 3:13 AM CST	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Washington	19 min
Dec 28, 3:28 AM CST	Flash Flood Warning	MOB	Choctaw, Clarke, Washington, Wilcox	3 hr
Dec 28, 4:12 AM CST	Flash Flood Warning Emergency	MOB	Choctaw	3 hr
Dec 28, 4:45 AM CST	Severe Thunderstorm Warning	MOB	Mobile, Washington	45 min
Dec 28, 4:52 AM CST	Areal Flood Advisory	MOB	Mobile, Washington	3 hr
Dec 28, 5:20 AM CST	Special Weather Statement	MOB	Mobile	40 min
Dec 28, 5:51 AM CST	Special Marine Warning	MOB		84 min
Dec 28, 5:54 AM CST	Special Weather Statement	MOB	Baldwin, Mobile	66 min
Dec 28, 6:04 AM CST	Special Weather Statement	MOB	Monroe	41 min
Dec 28, 6:25 AM CST	Areal Flood Warning	MOB	Choctaw, Washington	6 hr
Dec 28, 6:28 AM CST	Flash Flood Warning	MOB	Clarke, Wilcox	3 hr
Dec 28, 8:23 AM CST	Special Weather Statement	MOB	Covington	52 min
Dec 28, 8:38 AM CST	Special Marine Warning	MOB		97 min
Dec 28, 8:42 AM CST	Special Marine Warning	MOB		68 min
Dec 28, 9:03 AM CST	Areal Flood Warning	MOB	Choctaw, Clarke, Washington, Wilcox	27 hr
Dec 28, 1:15 PM CST	Areal Flood Advisory	MOB	Baldwin	3 hr
Dec 27, 6:13 PM CST	Flash Flood Warning	MOB	Perry, Wayne	6 hr
Dec 27, 7:55 PM CST	Flash Flood Warning Emergency	MOB	Greene, Perry, Wayne	7 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, 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, 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, 9:57 AM CST	River Flood Warning	MOB	Perry	21 days

Nearby

Flash Flood Warnings in Alabama, 2018 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.