Alert archive / Alabama / Flash Flood Warnings in 2015

Flash Flood Warning 7, NWS Tallahassee, FL

April 19, 2015Dale County, Henry County, Alabama

NWS Tallahassee, FL issued this flash flood warning at Apr 19, 2015, 8:58 AM CDT for Dale County, Henry County, Alabama. It was in force for 3 hr. 4 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: Apr 19, 2015, 8:58 AM CDT (13:58 UTC)
Expired: Apr 19, 2015, 12:00 PM CDT
In force: 3 hr
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Flood severity: None

Counties Dale County, AL, Henry County, AL

The radar

The Ft Rucker radar (KEOX), 20 km from the middle of the area, began a volume at 13:56 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
Apr 19, 10:30 AM CDT	FLASH FLOOD	5 Sw Abbeville, AL	WATER OVER THE ROAD NEAR THE INTERSECTION OF HIGHWAY 173 AND 27
Apr 19, 10:40 AM CDT	FLASH FLOOD	1 Ese Goldberg Field, AL	COUNTY ROAD 8 WASHED OUT NEAR COUNTY ROAD 16.
Apr 19, 10:40 AM CDT	FLASH FLOOD	1 N Ward Bridge, AL	COUNTY ROAD 333 / MORGAN CHURCH ROAD WASHED OUT.
Apr 19, 11:00 AM CDT	FLASH FLOOD	Abbeville, AL	PICTURE ON SOCIAL MEDIA OF WATER SURROUNDING A HOUSE IN ABBEVILLE

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

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 2.0 hours before the alert went out and 157 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: 760 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 636 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 119 m²/s²
0-3 km storm-relative helicity: 340 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

831 
WGUS52 KTAE 191358
FFWTAE
ALC045-067-191700-
/O.NEW.KTAE.FF.W.0007.150419T1358Z-150419T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
858 AM CDT SUN APR 19 2015

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  HENRY COUNTY IN SOUTHEASTERN ALABAMA...
  EASTERN DALE COUNTY IN SOUTHEASTERN ALABAMA...

* UNTIL NOON CDT
    
* AT 857 AM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ABBEVILLE...FORT GAINES...HEADLAND...OZARK...MIDLAND CITY...
  NEWTON...PINCKARD...GRIMES...NEWVILLE...NAPIER FIELD...HALEBURG...
  SCOTTSBORO CROSSROADS...CAPPS...SCREAMER...WATERFORD...GRABALL...
  SYLVAN GROVE...CURRYTOWN...BERTHA AND LAWRENCEVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3177 8514 3174 8512 3170 8513 3162 8506
      3157 8506 3154 8504 3147 8507 3138 8520
      3134 8530 3131 8542 3129 8543 3129 8548
      3124 8549 3128 8566 3162 8549 3162 8542
      3171 8542 3170 8522 3174 8520 3177 8516

$$

42-DVD

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 19, 7:47 AM CDT	Flash Flood Warning	TAE	Coffee, Dale, Geneva	3 hr
Apr 19, 8:18 AM CDT	Tornado Warning	TAE	Coffee, Geneva	27 min
Apr 19, 8:36 AM CDT	Tornado Warning	TAE	Dale, Henry	24 min
Apr 19, 8:42 AM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale	30 min
Apr 19, 8:54 AM CDT	Tornado Warning	TAE	Henry	36 min
Apr 19, 9:18 AM CDT	Tornado Warning	TAE	Henry	42 min
Apr 19, 9:52 AM CDT	Tornado Warning	TAE	Houston	23 min
Apr 19, 10:11 AM CDT	Tornado Warning	TAE	Henry, Houston	34 min
Apr 19, 4:38 PM CDT	River Flood Warning	TAE	Dale	41 hr

Nearby

Flash Flood Warnings in Alabama, 2015 Every flash flood warning in 2015

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.