Alert archive / Georgia / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 87, NWS Jacksonville, FL

May 11, 2008Wayne County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at May 11, 2008, 12:29 AM EDT for Wayne County, Georgia. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 11, 2008, 12:29 AM EDT (04:29 UTC)
Expired: May 11, 2008, 1:00 AM EDT
In force: 31 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

County Wayne County, GA

The radar

The Jacksonville radar (KJAX), 120 km from the middle of the area, began a volume at 04:31 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 watch it was issued in

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

Issued	Product	Office	Lasted
May 10, 10:06 PM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 4.5 hours before the alert went out and 119 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: 1812 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 1506 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 126 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 5.4

Open this sounding in Storm Lab

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 Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 10, 10:39 PM EDT, 1 hour 50 minutes earlier.

Area forecast discussion, May 10, 10:39 PM EDT, 1 hour 50 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1039 PM EDT SAT MAY 10 2008

.UPDATE...TORNADO WATCH IN EFFECT UNTIL 5 AM SUNDAY FOR OUR
FAR NORTHERN COUNTIES OF SE GA. REFER TO THE WCN AND HWO
FOR MORE INFO.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  71  85  57  79 /  30  60  10   0
SSI  74  86  61  77 /  30  60  20   0
JAX  73  88  59  81 /  20  60  10   0
SGJ  74  90  62  79 /  10  60  20   0
GNV  72  89  61  82 /  10  60  20   0
OCF  71  88  61  81 /   0  60  30   0

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...FIRE WEATHER WATCH FROM MONDAY AFTERNOON THROUGH MONDAY EVENING
     FOR ALACHUA-BAKER-BRADFORD-CLAY-COLUMBIA-DUVAL-FLAGLER-
     GILCHRIST-HAMILTON-MARION-NASSAU-PUTNAM-ST JOHNS-SUWANNEE-
     UNION.

GA...NONE.
AM...SMALL CRAFT ADVISORY FROM 2 PM SUNDAY TO 5 AM EDT TUESDAY FOR
     ALTAMAHA SOUND GA TO FERNANDINA BEACH FL 20 NM TO 60 NM
     OFFSHORE-FERNANDINA BEACH TO ST AUGUSTINE FL 20 NM TO 60 NM
     OFFSHORE-ST AUGUSTINE TO FLAGLER BEACH FL 20 NM TO 60 NM
     OFFSHORE.

     SMALL CRAFT ADVISORY FROM 2 PM SUNDAY TO 6 AM EDT MONDAY FOR
     ALTAMAHA SOUND GA TO FERNANDINA BEACH FL OUT 20 NM-
     FERNANDINA BEACH TO ST AUGUSTINE FL OUT 20 NM-ST AUGUSTINE
     TO FLAGLER BEACH FL OUT 20 NM.

&&

PP/JH

Hazardous weather outlook, May 10, 10:25 PM EDT, 2 hours 4 minutes before

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In the hours before

Special weather statement, May 10, 11:18 PM EDT, 1 hour 11 minutes before

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Special weather statement, May 10, 11:21 PM EDT, 1 hour 8 minutes before

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Special weather statement, May 10, 11:34 PM EDT, 55 minutes before

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Special weather statement, May 10, 11:43 PM EDT, 46 minutes before

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Special weather statement, May 10, 11:51 PM EDT, 38 minutes before

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Special weather statement, May 11, 12:14 AM EDT, 15 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 2:43 AM EDT	Red Flag Warning	JAX	Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more	40 hr
May 11, 3:35 AM EDT	Lake Wind Advisory	JAX	Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more	40 hr
May 11, 9:22 AM EDT	Special Marine Warning	JAX		113 min
May 11, 11:08 AM EDT	Special Marine Warning	JAX		97 min
May 11, 12:44 PM EDT	Special Marine Warning	JAX		91 min
May 11, 1:20 PM EDT	Wind Advisory	JAX	Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more	7 hr
May 11, 2:30 PM EDT	Special Marine Warning	JAX		2 hr
May 11, 3:15 PM EDT	Fire Weather Watch	JAX	Baker, Bradford, Gilchrist, Nassau, Suwannee, Union	37 hr
May 11, 4:33 PM EDT	Special Marine Warning	JAX		67 min
May 11, 6:10 PM EDT	Special Marine Warning	JAX		50 min
May 10, 10:42 PM EDT	Severe Thunderstorm Warning	JAX	Wayne	48 min
May 11, 2:43 AM EDT	Fire Weather Watch	JAX	Appling, Atkinson, Bacon, Brantley, Camden, Clinch and 6 more	13 hr
May 11, 7:34 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Jeff Davis	36 min
May 11, 7:57 AM EDT	Tornado Warning	JAX	Bacon, Coffee, Jeff Davis	48 min
May 11, 8:02 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Atkinson, Bacon, Coffee, Jeff Davis, Ware	43 min
May 11, 8:07 AM EDT	Tornado Warning	JAX	Appling, Bacon, Jeff Davis, Wayne	38 min
May 11, 8:34 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Pierce, Wayne	41 min
May 11, 8:46 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Coffee, Jeff Davis, Ware, Wayne	44 min
May 11, 9:04 AM EDT	Tornado Warning	JAX	Coffee, Jeff Davis	41 min
May 11, 9:09 AM EDT	Tornado Warning	JAX	Wayne	26 min
May 11, 9:14 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Brantley, Camden, Glynn, Pierce and 2 more	46 min
May 11, 9:26 AM EDT	Areal Flood Advisory	JAX	Appling, Bacon, Brantley, Coffee, Glynn, Jeff Davis and 2 more	2 hr
May 11, 9:31 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Coffee, Jeff Davis, Ware, Wayne	29 min
May 11, 9:53 AM EDT	Severe Thunderstorm Warning	JAX	Brantley, Camden, Glynn, Wayne	52 min
May 11, 9:57 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Brantley, Coffee, Pierce, Ware and 1 more	27 min
May 11, 9:59 AM EDT	Severe Thunderstorm Warning	JAX	Bacon, Coffee, Jeff Davis	31 min
May 11, 10:16 AM EDT	Tornado Warning	JAX	Wayne	29 min
May 11, 10:23 AM EDT	Tornado Warning	JAX	Brantley, Pierce	23 min
May 11, 10:45 AM EDT	Tornado Warning	JAX	Brantley, Camden, Glynn, Wayne	30 min
May 11, 11:10 AM EDT	Tornado Warning	JAX	Glynn	35 min
May 11, 11:34 AM EDT	Areal Flood Advisory	JAX	Brantley, Glynn, Wayne	86 min
May 11, 12:51 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Coffee, Jeff Davis	24 min
May 11, 1:18 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Pierce, Wayne	27 min
May 11, 1:43 PM EDT	Severe Thunderstorm Warning	JAX	Wayne	32 min
May 11, 2:07 PM EDT	Severe Thunderstorm Warning	JAX	Glynn, Wayne	23 min
May 11, 2:08 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Coffee, Jeff Davis	37 min
May 11, 2:14 PM EDT	Tornado Warning	JAX	Glynn, Wayne	31 min
May 11, 2:19 PM EDT	Tornado Warning	JAX	Appling, Jeff Davis	26 min
May 11, 2:34 PM EDT	Tornado Warning	JAX	Glynn	26 min
May 11, 2:45 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Wayne	30 min
May 11, 2:52 PM EDT	Severe Thunderstorm Warning	JAX	Atkinson, Bacon, Coffee, Ware	38 min
May 11, 3:20 PM EDT	Severe Thunderstorm Warning	JAX	Brantley, Pierce, Wayne	30 min
May 11, 3:51 PM EDT	Severe Thunderstorm Warning	JAX	Glynn, Wayne	24 min
May 11, 4:24 PM EDT	Severe Thunderstorm Warning	JAX	Glynn, Pierce, Wayne	36 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2008 Every severe thunderstorm warning in 2008

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.