Alert archive / Georgia / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 113, NWS Atlanta, GA

April 20, 2006Floyd County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 20, 2006, 6:03 PM EDT for Floyd County, Georgia. It was in force for 27 min. 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 20, 2006, 6:03 PM EDT (22:03 UTC)
Expired: Apr 20, 2006, 6:30 PM EDT
In force: 27 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

County Floyd County, GA

The radar

The Atlanta radar (KFFC), 106 km from the middle of the area, began a volume at 22:03 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
Apr 20, 6:20 PM EDT	HAIL 1.75	5 W Lindale, GA
Apr 20, 6:35 PM EDT	HAIL 0.75	5 S Rome, GA
Apr 20, 6:40 PM EDT	HAIL 0.25	Lindale, GA

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 20, 4:55 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.1 hours before the alert went out and 109 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1516 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: -19 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KFFC 202203
SVRFFC
GAC115-202230-
/O.NEW.KFFC.SV.W.0113.060420T2203Z-060420T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
603 PM EDT THU APR 20 2006

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FLOYD COUNTY IN NORTHWEST GEORGIA

* UNTIL 630 PM EDT

* AT 559 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED HAIL.  THIS
  STORM WAS LOCATED 6 MILES WEST OF LINDALE...AND MOVING EAST AT 15
  MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ROME.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

LAT...LON 3412 8516 3412 8524 3415 8538 3421 8535
      3432 8534 3429 8503 3411 8504 3412 8511
      3410 8513

$$

19

1 follow-up statement

000 
WWUS52 KFFC 202218
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
616 PM EDT THU APR 20 2006

GAC115-202230-
/O.CON.KFFC.SV.W.0113.000000T0000Z-060420T2230Z/
FLOYD GA-
616 PM EDT THU APR 20 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR FLOYD COUNTY...

AT 615 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED
HAIL.  THIS STORM WAS LOCATED NEAR LINDALE...MOVING EAST AT 15 MPH.

ANOTHER SEVERE THUNDERSTORM WAS LOCATED ON THE CHATTOOGA AND FLOYD 
COUNTY LINE. THIS STORM WILL AFFECT NORTHERN FLOYD COUNTY THROUGH 
630 PM...INCLUDING THE ARMUCHEE AND COOSA AREAS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
THURSDAY EVENING FOR NORTHERN GEORGIA.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

LAT...LON 3412 8516 3412 8524 3428 8541 3441 8523
      3436 8501 3411 8504 3412 8511

$$

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 19, 8:47 PM EDT	Severe Thunderstorm Warning	FFC	Dade, Walker	43 min
Apr 20, 3:19 PM EDT	Severe Thunderstorm Warning	FFC	Walker	26 min
Apr 20, 3:40 PM EDT	Severe Thunderstorm Warning	FFC	Walker	20 min
Apr 20, 4:00 PM EDT	Severe Thunderstorm Warning	FFC	Walker, Whitfield	45 min
Apr 20, 4:15 PM EDT	Severe Thunderstorm Warning	FFC	Dawson, Pickens	45 min
Apr 20, 4:25 PM EDT	Severe Thunderstorm Warning	FFC	Gordon, Murray	37 min
Apr 20, 5:42 PM EDT	Severe Thunderstorm Warning	FFC	Chattooga, Walker	48 min
Apr 20, 6:06 PM EDT	Severe Thunderstorm Warning	FFC	Haralson	39 min
Apr 20, 6:08 PM EDT	Severe Thunderstorm Warning	FFC	Polk	37 min
Apr 20, 6:29 PM EDT	Severe Thunderstorm Warning	FFC	Floyd	31 min
Apr 20, 6:36 PM EDT	Severe Thunderstorm Warning	FFC	Walker	24 min
Apr 20, 6:45 PM EDT	Severe Thunderstorm Warning	FFC	Polk	30 min
Apr 20, 6:46 PM EDT	Severe Thunderstorm Warning	FFC	Haralson	29 min
Apr 20, 6:53 PM EDT	Severe Thunderstorm Warning	FFC	Bartow	35 min
Apr 20, 7:07 PM EDT	Severe Thunderstorm Warning	FFC	Carroll	25 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2006 Every severe thunderstorm warning in 2006

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.