Alert archive / Alabama / Tornado Warnings in 2015

Tornado Warning 8, NWS Tallahassee, FL

April 19, 2015Coffee County, Geneva County, Alabama

NWS Tallahassee, FL issued this tornado warning at Apr 19, 2015, 8:18 AM CDT for Coffee County, Geneva County, Alabama. It was in force for 27 min. 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: Apr 19, 2015, 8:18 AM CDT (13:18 UTC)
Expired: Apr 19, 2015, 8:45 AM CDT
In force: 27 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

Counties Coffee County, AL, Geneva County, AL

The radar

The Ft Rucker radar (KEOX), 55 km from the middle of the area, began a volume at 13:19 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, 8:40 AM CDT	TSTM WND DMG	Coffee Springs, AL	SEVERAL LARGE TREES DOWNED. TIME ESTIMATED FROM RADAR. REPORT VIA A WTVY-TV WEB REPORT. CORRECTED TIME.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 19, 6:57 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 1.3 hours before the alert went out and 184 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.

785 
WFUS52 KTAE 191318
TORTAE
ALC031-061-191345-
/O.NEW.KTAE.TO.W.0008.150419T1318Z-150419T1345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
818 AM CDT SUN APR 19 2015

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN GENEVA COUNTY IN SOUTHEASTERN ALABAMA...
  SOUTHEASTERN COFFEE COUNTY IN SOUTHEASTERN ALABAMA...

* UNTIL 845 AM CDT
    
* AT 818 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  NEAR SAMSON...OR 9 MILES NORTHWEST OF GENEVA...AND MOVING NORTHEAST
  AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ENTERPRISE...SAMSON...COFFEE SPRINGS...COPPINVILLE...PINEY GROVE...
  KEYTON...BATTENS CROSSROADS...CENTRAL CITY...SPEARS...MARVIN
  CHAPEL...SELLERSVILLE...ENTERPRISE MUNICIPAL A/P...MARL...NEW
  HAVEN...TURNER CROSSROADS...LOGAN FIELD MUNICIPAL A/P...GOODMAN...
  COOL SPRINGS...LUCILE AND CHANCELLOR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3137 8608 3132 8579 3122 8579 3103 8603
      3105 8608
TIME...MOT...LOC 1318Z 209DEG 41KT 3113 8599 

$$

15-HARRIGAN

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, 8:36 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, 8:58 AM CDT	Flash Flood Warning	TAE	Dale, Henry	3 hr
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

Tornado Warnings in Alabama, 2015 Every tornado warning in 2015 Tornadoes 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.