Alert archive / Florida / Mesoscale Discussions in 2005

Mesoscale Discussion 513

April 6, 20055 counties in Alabama; 7 counties in Florida; Clay County, Early County, Seminole County, Georgia

The Storm Prediction Center issued this mesoscale discussion at Apr 6, 2005, 10:36 PM CDT for 5 counties in Alabama; 7 counties in Florida; Clay County, Early County, Seminole County, Georgia. It was in force for 54 min.

The area

The outline as issued.

The facts

Issued
Apr 6, 2005, 10:36 PM CDT (03:36 UTC)
Expired
Apr 6, 2005, 11:30 PM CDT
In force
54 min
Issued by
the Storm Prediction Center

Counties Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Bay County, FL, Calhoun County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Walton County, FL, Washington County, FL, Clay County, GA, Early County, GA, Seminole County, GA

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 3.6 hours before the alert went out and 148 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 00:00Z on 2005-04-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2005-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1032 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
58 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.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 6, 7:00 PM CDTSevere Thunderstorm WatchSPCCoffee, Dale, Geneva, Henry, Houston4 hr
Apr 6, 11:50 PM CDTMesoscale DiscussionSPCAutauga, Baldwin, Barbour, Bibb, Blount, Bullock and 47 more55 min
Apr 7, 11:03 AM CDTMesoscale DiscussionSPCBlount, Calhoun, Chambers, Cherokee, Clay, Cleburne and 12 more117 min
Apr 7, 3:53 AM CDTMesoscale DiscussionSPCGulf, Jefferson, Lafayette, Leon, Liberty, Madison and 2 more2 hr
Apr 7, 7:52 AM CDTMesoscale DiscussionSPCAlachua, Citrus, Columbia, Dixie, Gilchrist, Lafayette and 4 more113 min
Apr 7, 10:25 AM CDTSevere Thunderstorm WatchSPCAlachua, Baker, Bradford, Citrus, Clay, Columbia and 17 more8 hr
Apr 7, 12:00 PM CDTMesoscale DiscussionSPCAlachua, Baker, Bradford, Citrus, Clay, Columbia and 17 more2 hr
Apr 7, 3:18 PM CDTMesoscale DiscussionSPCAlachua, Baker, Bradford, Brevard, Charlotte, Citrus and 36 more87 min
Apr 7, 4:50 PM CDTSevere Thunderstorm WatchSPCBrevard, Charlotte, Citrus, DeSoto, Glades, Hardee and 20 more6 hr
Apr 7, 6:20 PM CDTMesoscale DiscussionSPCBrevard, Charlotte, Collier, DeSoto, Glades, Hardee and 17 more55 min
Apr 7, 4:52 PM CDTMesoscale DiscussionSPCAtkinson, Bacon, Baker, Baldwin, Barrow, Ben Hill and 92 more23 min

Nearby

Mesoscale Discussions in Florida, 2005Mesoscale Discussions in Alabama, 2005Mesoscale Discussions in Georgia, 2005Every mesoscale discussion in 2005

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.