Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 101, NWS Tallahassee, FL

March 10, 20174 counties in Georgia; Henry County, Houston County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Mar 10, 2017, 7:18 AM EST for 4 counties in Georgia; Henry County, Houston County, Alabama. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 10, 2017, 7:18 AM EST (12:18 UTC)
Expired
Mar 10, 2017, 7:45 AM EST
In force
27 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Henry County, AL, Houston County, AL, Baker County, GA, Calhoun County, GA, Early County, GA, Miller County, GA

The radar

The Ft Rucker radar (KEOX), 43 km from the middle of the area, began a volume at 12:17 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.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 0.3 hours before the alert went out and 124 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-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 12:00Z on 2017-03-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2017-03-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
5 J/kg
Mixed-layer CIN
-216 J/kg
Mixed-layer LCL
930 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

276 
WUUS52 KTAE 101218
SVRTAE
ALC067-069-GAC007-037-099-201-101245-
/O.NEW.KTAE.SV.W.0101.170310T1218Z-170310T1245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
718 AM EST FRI MAR 10 2017

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Southeastern Henry County in southeastern Alabama...
  Eastern Houston County in southeastern Alabama...
  Northwestern Miller County in southwestern Georgia...
  Northwestern Baker County in southwestern Georgia...
  Southwestern Calhoun County in southwestern Georgia...
  Early County in southwestern Georgia...

* Until 745 AM EST/645 AM CST/

* At 717 AM EST/617 AM CST/, a severe thunderstorm was located near
  Blakely, moving east at 50 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Locations impacted include...
  Blakely, Headland, Ashford, Cowarts, Arlington, Webb, Columbia,
  Kinsey, Douglasville, Centerville, Avon, Gordon, Damascus,
  Haleburg, Saffold, Iveys Mill, Pansey, Sigma, Grandberry Crossroads
  and Enon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3136 8534 3150 8484 3140 8441 3100 8525
TIME...MOT...LOC 1217Z 275DEG 69KT 3137 8488 

HAIL...<.75IN
WIND...60MPH
 
$$

04-MCDERMOTT
1 follow-up statement
829 
WWUS52 KTAE 101229
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
729 AM EST FRI MAR 10 2017

ALC067-GAC037-101238-
/O.CAN.KTAE.SV.W.0101.000000T0000Z-170310T1245Z/
Henry AL-Calhoun GA-
729 AM EST FRI MAR 10 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HENRY COUNTY IN
SOUTHEASTERN ALABAMA AND SOUTHWESTERN CALHOUN COUNTIES IN
SOUTHWESTERN GEORGIA IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area.  Therefore, the warning has been cancelled.

LAT...LON 3135 8453 3100 8525 3121 8530 3144 8468
      3143 8466
TIME...MOT...LOC 1228Z 275DEG 69KT 3135 8463 

$$

ALC069-GAC007-099-201-101245-
/O.CON.KTAE.SV.W.0101.000000T0000Z-170310T1245Z/
Houston AL-Miller GA-Baker GA-Early GA-
729 AM EST FRI MAR 10 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 AM
EST/645 AM CST/ FOR EASTERN HOUSTON...NORTHWESTERN MILLER...WEST
CENTRAL BAKER AND CENTRAL EARLY COUNTIES...

At 728 AM EST/628 AM CST/, a severe thunderstorm was located 8 miles
southeast of Arlington, or 13 miles south of Morgan, moving east at
80 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

Locations impacted include...
Ashford, Cowarts, Arlington, Douglasville, Centerville, Avon, Gordon,
Damascus, Saffold, Pansey, Howards Mill, Crestview, Enon, Lovetown,
Cuba, Farley Nuclear Plant, Cedar Springs, Old Damascus, Hentown and
Hilton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3135 8453 3100 8525 3121 8530 3144 8468
      3143 8466
TIME...MOT...LOC 1228Z 275DEG 69KT 3135 8463 

HAIL...<.75IN
WIND...60MPH
 
$$

04-MCDERMOTT

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 10, 6:02 AM ESTSpecial Weather StatementTAEClay, Quitman, Randolph58 min
Mar 10, 6:54 AM ESTSpecial Weather StatementTAEClay, Early36 min
Mar 10, 7:35 AM ESTSevere Thunderstorm WarningTAEDecatur, Early, Miller, Seminole25 min
Mar 10, 7:56 AM ESTSpecial Weather StatementTAEDecatur, Seminole49 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2017Severe Thunderstorm Warnings in Alabama, 2017Every severe thunderstorm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.