Alert archive / Florida / Mesoscale Discussions in 2005

Mesoscale Discussion 1665

July 5, 20056 counties in Alabama; 11 counties in Florida; George County, Jackson County, Mississippi

The Storm Prediction Center issued this mesoscale discussion at Jul 5, 2005, 7:47 PM CDT for 6 counties in Alabama; 11 counties in Florida; George County, Jackson County, Mississippi. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued: Jul 5, 2005, 7:47 PM CDT (00:47 UTC)
Expired: Jul 5, 2005, 9:45 PM CDT
In force: 118 min
Issued by: the Storm Prediction Center

Counties Baldwin County, AL, Covington County, AL, Escambia County, AL, Geneva County, AL, Houston County, AL, Mobile County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Franklin County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Washington County, FL, George County, MS, Jackson County, MS

The radar

The Mobile radar (KMOB), 90 km from the middle of the area, began a volume at 00:49 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Tornado Watch 608Jul 5, 11:40 PM CDT

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 0.8 hours before the alert went out and 226 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: 17 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 893 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -6 m²/s²
0-3 km storm-relative helicity: 4 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.

Issued	Product	Office	Counties	Lasted
Jul 5, 11:40 PM CDT	Tornado Watch	SPC	Baldwin, Mobile	5 hr
Jul 6, 3:47 AM CDT	Mesoscale Discussion	SPC	Autauga, Baldwin, Barbour, Bullock, Butler, Choctaw and 21 more	58 min
Jul 6, 4:40 AM CDT	Tornado Watch	SPC	Baldwin, Barbour, Bullock, Butler, Choctaw, Clarke and 16 more	5 hr
Jul 6, 7:48 AM CDT	Mesoscale Discussion	SPC	Autauga, Baldwin, Barbour, Bullock, Butler, Choctaw and 24 more	57 min
Jul 6, 9:14 AM CDT	Mesoscale Discussion	SPC	Baldwin, Barbour, Bullock, Butler, Choctaw, Clarke and 16 more	61 min
Jul 6, 11:48 AM CDT	Mesoscale Discussion	SPC	Barbour, Bullock, Butler, Chambers, Coffee, Conecuh and 15 more	87 min
Jul 6, 12:30 PM CDT	Tornado Watch	SPC	Barbour, Bullock, Chambers, Coffee, Dale, Elmore and 8 more	6 hr
Jul 6, 2:10 PM CDT	Mesoscale Discussion	SPC	Barbour, Bullock, Chambers, Coffee, Dale, Elmore and 8 more	65 min
Jul 6, 2:45 PM CDT	Tornado Watch	SPC	Calhoun, Cherokee, Clay, Cleburne, Etowah, Randolph and 2 more	4 hr
Jul 6, 6:11 PM CDT	Mesoscale Discussion	SPC	Calhoun, Chambers, Cherokee, Clay, Cleburne, Coosa and 8 more	34 min
Jul 6, 6:35 PM CDT	Tornado Watch	SPC	Bullock, Calhoun, Chambers, Cherokee, Clay, Cleburne and 6 more	6 hr

Nearby

Mesoscale Discussions in Florida, 2005 Mesoscale Discussions in Alabama, 2005 Mesoscale Discussions in Mississippi, 2005 Every 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; radar from the NEXRAD Level II archive.