Alert archive / Alabama / Flash Flood Warnings in 2016

Flash Flood Warning 6, NWS Tallahassee, FL

April 1, 20164 counties in Alabama

NWS Tallahassee, FL issued this flash flood warning at Apr 1, 2016, 11:46 AM CDT for 4 counties in Alabama. It was in force for 2 hr. 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: Apr 1, 2016, 11:46 AM CDT (16:46 UTC)
Expired: Apr 1, 2016, 2:15 PM CDT
In force: 2 hr
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Flood severity: None

Counties Coffee County, AL, Dale County, AL, Henry County, AL, Houston County, AL

The radar

The Ft Rucker radar (KEOX), 20 km from the middle of the area, began a volume at 16:49 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 1, 1:00 PM CDT	FLASH FLOOD	3 E Midland City, AL	FLOODING REPORTED ON J STEELE ROAD NEAR THE DOTHAN AIRPORT
Apr 1, 1:26 PM CDT	FLASH FLOOD	2 Se Pinckard, AL	ROAD CLOSED DUE TO FLOODING
Apr 1, 1:26 PM CDT	FLASH FLOOD	Pinckard, AL	ROAD CLOSED DUE TO FLOODING

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, 4.8 hours before the alert went out and 166 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: 339 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 561 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 165 m²/s²
0-3 km storm-relative helicity: 341 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

161 
WGUS52 KTAE 011646
FFWTAE
ALC031-045-067-069-011915-
/O.NEW.KTAE.FF.W.0006.160401T1646Z-160401T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1146 AM CDT FRI APR 1 2016

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN COFFEE COUNTY IN SOUTHEASTERN ALABAMA...
  NORTHWESTERN HOUSTON COUNTY IN SOUTHEASTERN ALABAMA...
  SOUTHERN HENRY COUNTY IN SOUTHEASTERN ALABAMA...
  CENTRAL DALE COUNTY IN SOUTHEASTERN ALABAMA...

* UNTIL 215 PM CDT

* AT 1145 AM CDT...THE PUBLIC REPORTED THUNDERSTORMS PRODUCING HEAVY
  RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES INCH OF RAIN HAS
  ALREADY FALLEN. FLASH FLOODING WILL CONTINUE OR IS EXPECTED TO
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  DALEVILLE...ELBA...FORT RUCKER...HEADLAND...OZARK...ENTERPRISE...MIDLAND
  CITY...KINSEY...LEVEL PLAINS...NEWTON...NEW BROCKTON...PINCKARD...
  CLAYHATCHEE...GRIMES...NEWVILLE...NAPIER FIELD...CLINTONVILLE...PLEASANT
  PLAINS...BATTENS CROSSROADS AND WATERFORD.

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.

&&

LAT...LON 3144 8564 3150 8512 3129 8521 3130 8542
      3125 8567 3124 8619 3142 8620

$$

18-WOOL

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 1, 6:19 AM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale	41 min
Apr 1, 6:56 AM CDT	Severe Thunderstorm Warning	TAE	Dale, Henry	34 min
Apr 1, 9:38 AM CDT	River Flood Warning	TAE	Dale	4 days
Apr 1, 9:38 AM CDT	River Flood Warning	TAE	Geneva	4 days
Apr 1, 10:13 AM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale	47 min
Apr 1, 11:14 AM CDT	Flash Flood Warning	TAE	Coffee, Dale, Geneva, Houston	3 hr
Apr 1, 1:09 PM CDT	Flash Flood Warning	TAE	Geneva, Houston	2 hr

Nearby

Flash Flood Warnings in Alabama, 2016 Every flash flood warning in 2016

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.