Alert archive / Florida / Mesoscale Discussions in 2006

Mesoscale Discussion 101

February 2, 20065 counties in Florida

The Storm Prediction Center issued this mesoscale discussion at Feb 2, 2006, 11:41 AM EST for 5 counties in Florida. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Feb 2, 2006, 11:41 AM EST (16:41 UTC)
Expired: Feb 2, 2006, 1:45 PM EST
In force: 2 hr
Issued by: the Storm Prediction Center

Counties Franklin County, FL, Gulf County, FL, Leon County, FL, Liberty County, FL, Wakulla County, FL

The radar

The Tallahassee radar (KTLH), 65 km from the middle of the area, began a volume at 16:41 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, 4.7 hours before the alert went out and 67 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3195 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 169 m²/s²
0-3 km storm-relative helicity: 184 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
Feb 2, 2:52 AM EST	Mesoscale Discussion	SPC	Escambia	83 min
Feb 2, 3:10 AM EST	Tornado Watch	SPC	Escambia, Okaloosa, Santa Rosa	8 hr
Feb 2, 5:09 AM EST	Mesoscale Discussion	SPC	Escambia, Okaloosa, Santa Rosa	96 min
Feb 2, 7:13 AM EST	Mesoscale Discussion	SPC	Bay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 7 more	92 min
Feb 2, 4:08 PM EST	Mesoscale Discussion	SPC	Columbia, Dixie, Franklin, Gilchrist, Hamilton, Jefferson and 5 more	112 min
Feb 2, 5:52 PM EST	Tornado Watch	SPC	Alachua, Baker, Bradford, Clay, Columbia, Dixie and 17 more	4 hr
Feb 2, 5:54 PM EST	Mesoscale Discussion	SPC	Alachua, Baker, Bradford, Clay, Columbia, Dixie and 15 more	2 hr

Nearby

Mesoscale Discussions in Florida, 2006 Every mesoscale discussion in 2006

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.