Alert archive / Georgia / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 191, NWS Tallahassee, FL

June 30, 20155 counties in Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Jun 30, 2015, 11:53 AM EDT for 5 counties in Georgia. It was in force for 67 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: Jun 30, 2015, 11:53 AM EDT (15:53 UTC)
Expired: Jun 30, 2015, 1:00 PM EDT
In force: 67 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

Counties Brooks County, GA, Colquitt County, GA, Cook County, GA, Grady County, GA, Thomas County, GA

The radar

The Moody AFB radar (KVAX), 70 km from the middle of the area, began a volume at 15:53 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
Jun 30, 11:56 AM EDT	TSTM WND DMG	3 Ese Cairo, GA	TREE DOWN ON JOYNER ROAD.
Jun 30, 12:12 PM EDT	TSTM WND DMG	3 N Thomasville, GA	SEVERAL TREES DOWN JUST NORTH OF THOMASVILLE. NUMEROUS POWERLINES ALSO DOWN. ADDITIONAL REPORT IN THE COUNTY OF LIGHTNING STRIKING A HOME.
Jun 30, 12:12 PM EDT	TSTM WND DMG	Thomasville, GA	TREES DOWN ON POWER LINES. POSTED TO WCTV FACEBOOK PAGE

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 3 storm reports to this severe thunderstorm warning; the first came 3 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 3.9 hours before the alert went out and 85 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: 836 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 1058 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: -2 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.

910 
WUUS52 KTAE 301553
SVRTAE
GAC027-071-075-131-275-301700-
/O.NEW.KTAE.SV.W.0191.150630T1553Z-150630T1700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1153 AM EDT TUE JUN 30 2015

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN GRADY COUNTY IN SOUTHWESTERN GEORGIA...
  SOUTHWESTERN COOK COUNTY IN SOUTH CENTRAL GEORGIA...
  THOMAS COUNTY IN SOUTH CENTRAL GEORGIA...
  BROOKS COUNTY IN SOUTH CENTRAL GEORGIA...
  SOUTHERN COLQUITT COUNTY IN SOUTH CENTRAL GEORGIA...

* UNTIL 100 PM EDT

* AT 1153 AM EDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A LINE
  OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM NEAR PELHAM TO 6 MILES SOUTH OF CAIRO...AND MOVING EAST AT 40
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  THOMASVILLE...QUITMAN...CAIRO...ADEL...BOSTON...OCHLOCKNEE...
  PAVO...COOLIDGE...MORVEN...BERLIN...BARWICK...DIXIE...QUALITY...
  ENON...PINE PARK...BARNEY...MOULTRIE MUNICIPAL A/P...OAKLAWN...
  THOMASVILLE MUNICIPAL A/P AND BEACHTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE IMMEDIATELY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS UNTIL
THIS STORM PASSES.

&&

LAT...LON 3103 8344 3103 8347 3099 8345 3067 8354
      3072 8429 3108 8423 3108 8401 3110 8400
      3113 8341
TIME...MOT...LOC 1553Z 266DEG 33KT 3108 8413 3078 8422 

$$

42-DVD

2 follow-up statements

085 
WWUS52 KTAE 301614
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1214 PM EDT TUE JUN 30 2015

GAC131-301624-
/O.CAN.KTAE.SV.W.0191.000000T0000Z-150630T1700Z/
GRADY GA-
1214 PM EDT TUE JUN 30 2015

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN GRADY COUNTY IS
CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED 
AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3103 8344 3103 8347 3099 8345 3067 8354
      3071 8406 3107 8404 3108 8401 3110 8400
      3113 8341
TIME...MOT...LOC 1614Z 273DEG 33KT 3106 8393 3076 8402 

$$

GAC027-071-075-275-301700-
/O.CON.KTAE.SV.W.0191.000000T0000Z-150630T1700Z/
COOK GA-THOMAS GA-BROOKS GA-COLQUITT GA-
1214 PM EDT TUE JUN 30 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM EDT
FOR SOUTHWESTERN COOK...THOMAS...BROOKS AND SOUTHERN COLQUITT
COUNTIES...

AT 1214 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR
COOLIDGE TO 6 MILES SOUTH OF THOMASVILLE...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
THOMASVILLE...QUITMAN...ADEL...BOSTON...OCHLOCKNEE...PAVO...
COOLIDGE...MORVEN...BERLIN...BARWICK...DIXIE...ENON...BARNEY...
MOULTRIE MUNICIPAL A/P...OAKLAWN...THOMASVILLE MUNICIPAL A/P...
DAWESVILLE...HOLLIS...EVERETT AND MURPHY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
OFFICE IN TALLAHASSEE.

&&

LAT...LON 3103 8344 3103 8347 3099 8345 3067 8354
      3071 8406 3107 8404 3108 8401 3110 8400
      3113 8341
TIME...MOT...LOC 1614Z 273DEG 33KT 3106 8393 3076 8402 

$$

42-DVD

046 
WWUS52 KTAE 301627
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1227 PM EDT TUE JUN 30 2015

GAC027-071-075-275-301700-
/O.CON.KTAE.SV.W.0191.000000T0000Z-150630T1700Z/
COOK GA-THOMAS GA-BROOKS GA-COLQUITT GA-
1227 PM EDT TUE JUN 30 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM EDT
FOR SOUTHWESTERN COOK...EASTERN THOMAS...BROOKS AND SOUTHEASTERN
COLQUITT COUNTIES...

AT 1227 PM EDT...LOCAL LAW ENFORCEMENT REPORTED A LINE OF SEVERE
THUNDERSTORMS PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR COOLIDGE TO 6 
MILES WEST OF BOSTON...MOVING EAST AT 40 MPH. SEVERAL TREES AND 
POWER LINES HAVE BEEN BLOWN DOWN NEAR THOMASVILLE.

LOCATIONS IMPACTED INCLUDE...
QUITMAN...ADEL...BOSTON...PAVO...COOLIDGE...MORVEN...BERLIN...
BARWICK...DIXIE...ENON...BARNEY...MOULTRIE MUNICIPAL A/P...OAKLAWN...
THOMASVILLE MUNICIPAL A/P...HOLLIS...EVERETT...MURPHY...GREGGS...PINE
VALLEY AND AUTREYVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE A HISTORY OF PRODUCING WIND DAMAGE. THIS IS A VERY
DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND
STAY AWAY FROM WINDOWS.
 
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
OFFICE IN TALLAHASSEE.

&&

LAT...LON 3103 8344 3103 8347 3099 8345 3067 8354
      3070 8393 3111 8389 3113 8341
TIME...MOT...LOC 1627Z 266DEG 33KT 3107 8380 3077 8389 

$$

42-DVD

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 30, 9:14 AM EDT, 2 hours 39 minutes earlier.

Area forecast discussion, Jun 30, 9:14 AM EDT, 2 hours 39 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TALLAHASSEE FL
914 AM EDT TUE JUN 30 2015

...SOME SEVERE WEATHER EXPECTED ACROSS THE AREA THIS AFTERNOON...

.NEAR TERM [THROUGH TODAY]...

THE MORNING ANALYSIS DEPICTS UPPER LEVEL TROUGHING STRETCHING FROM
THE GREAT LAKES TO THE SOUTHEAST STATES WITH AN MCS ORGANIZING
ACROSS PORTIONS OF MS AND AL AND PROPAGATING SOUTHEASTWARD. THE
AIRMASS AHEAD OF IT IS MOIST AND UNSTABLE WITH A RATHER IMPRESSIVE
12Z KTAE SOUNDING. THE SOUNDING DEPICTS STEEP MID-LEVEL LAPSE
RATES FOR THIS TIME OF YEAR AROUND 6.7 C/KM AND SBCAPE ALREADY
OVER 2000 J/KG. THERE ARE ALSO SOME ABOVE AVERAGE UPPER LEVEL
WINDS WITH 700 MB WINDS OVER 30 KNOTS...WHICH WILL CONTRIBUTE TO
ABOVE AVERAGE SHEAR FOR THIS TIME YEAR. UNLIKE THE PAST COUPLE OF
MORNINGS...THERE IS NOT MUCH CLOUD COVER OR EARLY CONVECTION
ACROSS THE AREA...AND THIS WILL ALSO CONTRIBUTE TO STRONGER
DESTABILIZATION THIS AFTERNOON.

GIVEN THESE FACTORS...AN ACTIVE AFTERNOON IS EXPECTED WITH
SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS DEVELOPING. THE
IMPRESSIVE THERMODYNAMICS COUPLED WITH SHEAR THAT IS A BIT ABOVE
NORMAL FOR THIS TIME OF YEAR THANKS TO THE UNUSUALLY DEEP UPPER
LEVEL TROUGH ARE EXPECTED TO YIELD SOME STRONG TO SEVERE STORMS
WITH DAMAGING WINDS BEING THE MAIN THREAT. HOWEVER...SOME LARGE
HAIL IS ALSO POSSIBLE GIVEN THE STEEP MID LEVEL LAPSE RATES. IT
WAS INTERESTING TO NOTE THAT A GOLFBALL SIZE HAIL REPORT WAS
RECEIVED WITH THE CONVECTION BACK IN CENTRAL ALABAMA EARLIER THIS
MORNING. THE LAST SEVERAL RUNS OF THE HRRR HAVE SHOWN EXPLICIT 50
KNOT GUSTS WITH CONVECTION THIS AFTERNOON...WHICH IS ANOTHER SIGN
THAT THE ENVIRONMENT IS FORECAST TO BE FAVORABLE FOR SEVERE
STORMS.

&&

.PREV DISCUSSION [628 AM EDT]...

.SHORT TERM [TONIGHT THROUGH THURSDAY]...

THE BROAD UPPER LEVEL TROUGH COVERING THE EASTERN CONUS WILL REMAIN
IN PLACE WITH A FEW IMPULSES ROUNDING IT'S BASE IMPACTING THE LOCAL
REGION. AT THE SURFACE, THE AXIS OF THE WESTERN EXTENSION OF THE
BERMUDA RIDGE WILL STAY SOUTH OF THE LOCAL AREA KEEPING LOW LEVEL
WINDS OUT OF THE WEST TO SOUTHWEST. WITH PLENTIFUL MOISTURE IN PLACE
ALONG WITH INCREASED INSTABILITY, WE SEE A FAIRLY ACTIVE PERIOD FOR
CONVECTION. ALTHOUGH THE HIGHEST POPS WILL BE DURING THE DAYTIME,
SCATTERED SHOWERS AND THUNDERSTORMS SHOULD LINGER INTO THE EVENING
BOTH DAYS. TEMPERATURES WILL BE NEAR NORMAL WITH HIGHS IN THE LOWER
90S AND LOWS IN THE LOWER 70S.

.LONG TERM [THURSDAY NIGHT THROUGH TUESDAY]...

BY FRIDAY, MID TO UPPER LEVEL RIDGING WILL BEGIN TO EXTEND WESTWARD
FROM THE WESTERN ATLANTIC BECOMING MORE ESTABLISHED ACROSS THE GULF
OVER THE WEEKEND AND EARLY NEXT WEEK AS THE EASTERN TROUGH SLOWLY DE-
AMPLIFIES. THIS SHOULD LEAD TO SLIGHTLY WARMER AFTERNOON
TEMPERATURES (MID 90S VS LOWER 90S) ALONG WITH BELOW NORMAL RAIN
CHANCES.

.AVIATION...
[THROUGH 12Z WEDNESDAY]... MVFR CONDITIONS AND GUSTY WINDS ARE POSSIBLE
IN THUNDERSTORMS TODAY. INCLUDED VCTS AT ECP AND TLH THIS MORNING
AND AT OTHER TERMINALS STARTING EARLY AFTERNOON. OUTSIDE OF
THUNDERSTORMS EXPECT VFR CONDITIONS.

.MARINE...

WINDS AND SEAS WILL INCREASE TO CAUTIONARY LEVELS LATER THIS
MORNING AND CONTINUE THROUGH TONIGHT. CONDITIONS DROP BELOW
HEADLINE LEVELS ON WEDNESDAY AND GRADUALLY IMPROVE LATER THIS WEEK
THROUGH THE UPCOMING HOLIDAY WEEKEND AS HIGH PRESSURE BUILDS OVER
THE LOCAL WATERS.

.FIRE WEATHER...

TODAY WILL SEE AN INCREASE IN THUNDERSTORM COVERAGE. WITH RH ABOVE
CRITICAL THRESHOLDS, THERE ARE NO FIRE WEATHER CONCERNS.

.HYDROLOGY...

ALTHOUGH RAIN CHANCES WILL BE FAIRLY HIGH THROUGH THE MIDDLE OF
THE WEEK, RELATIVELY STRONG WEST WINDS WILL KEEP THE CONVECTION
MOVING QUICKLY, AVOIDING HIGH RAINFALL TOTALS IN ALL BUT A FEW
SPOTS. SOME RIVERS HAVE RISEN FROM HEAVIER RAINS LAST WEEK, BUT
ALL WERE BELOW THEIR LOCAL ACTION STAGES, AND THIS WILL LIKELY
CONTINUE FOR THE NEXT SEVERAL DAYS.

&&

.PRELIMINARY POINT TEMPS/POPS...

TALLAHASSEE   91  74  92  73  92 /  60  40  50  30  50
PANAMA CITY   87  78  88  76  89 /  50  40  40  30  40
DOTHAN        91  71  92  72  91 /  60  50  50  30  50
ALBANY        92  71  93  71  92 /  60  50  40  30  60
VALDOSTA      91  72  92  73  92 /  60  40  50  30  60
CROSS CITY    90  74  91  73  91 /  50  30  50  30  40
APALACHICOLA  88  78  88  77  90 /  50  30  40  30  30

&&

.TAE WATCHES/WARNINGS/ADVISORIES...
FL...HIGH RIP CURRENT RISK UNTIL 8 PM EDT /7 PM CDT/ THIS EVENING FOR
     COASTAL BAY-COASTAL FRANKLIN-COASTAL GULF-SOUTH WALTON.

GA...NONE.
AL...NONE.
GM...NONE.
&&

NEAR TERM...DVD
SHORT TERM...BARRY
LONG TERM...BARRY
AVIATION...WESTON
MARINE...BARRY
FIRE WEATHER...WESTON
HYDROLOGY...FOURNIER/CAMP

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 12:25 PM EDT	Severe Thunderstorm Warning	TAE	Seminole	65 min
Jun 30, 12:33 PM EDT	Severe Thunderstorm Warning	TAE	Berrien, Brooks, Colquitt, Cook, Lanier, Lowndes	87 min
Jun 30, 1:08 PM EDT	Severe Thunderstorm Warning	TAE	Decatur, Seminole	67 min
Jun 30, 1:28 PM EDT	Severe Thunderstorm Warning	TAE	Colquitt, Grady, Mitchell, Thomas	50 min
Jun 30, 1:45 PM EDT	Severe Thunderstorm Warning	TAE	Decatur, Grady, Thomas	60 min
Jun 30, 2:07 PM EDT	Severe Thunderstorm Warning	TAE	Ben Hill, Dougherty, Irwin, Lee, Tift, Turner and 1 more	53 min
Jun 30, 2:54 PM EDT	Severe Thunderstorm Warning	TAE	Berrien, Irwin, Tift, Turner, Worth	51 min
Jun 30, 3:32 PM EDT	Severe Thunderstorm Warning	TAE	Calhoun, Dougherty, Lee, Randolph, Terrell, Worth	58 min
Jun 30, 4:32 PM EDT	Severe Thunderstorm Warning	TAE	Decatur, Seminole	43 min
Jun 30, 4:42 PM EDT	Severe Thunderstorm Warning	TAE	Colquitt, Irwin, Tift, Turner, Worth	48 min
Jun 30, 5:11 PM EDT	Severe Thunderstorm Warning	TAE	Decatur, Grady, Seminole	49 min
Jun 30, 5:23 PM EDT	Severe Thunderstorm Warning	TAE	Ben Hill, Berrien, Irwin, Tift, Worth	54 min
Jun 30, 5:38 PM EDT	Severe Thunderstorm Warning	TAE	Decatur, Grady, Thomas	67 min
Jun 30, 6:12 PM EDT	Severe Thunderstorm Warning	TAE	Brooks, Grady, Thomas	63 min
Jun 30, 6:50 PM EDT	Severe Thunderstorm Warning	TAE	Brooks, Lowndes	55 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2015 Every severe thunderstorm 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.