Alert archive / Mississippi / Mesoscale Discussions in 2006

Mesoscale Discussion 2132

October 17, 200611 counties in Mississippi

The Storm Prediction Center issued this mesoscale discussion at Oct 17, 2006, 12:01 AM CDT for 11 counties in Mississippi. It was in force for 59 min.

The area

The outline as issued.

The facts

Issued: Oct 17, 2006, 12:01 AM CDT (05:01 UTC)
Expired: Oct 17, 2006, 1:00 AM CDT
In force: 59 min
Issued by: the Storm Prediction Center

Counties Chickasaw County, MS, Choctaw County, MS, Clay County, MS, Itawamba County, MS, Lee County, MS, Lowndes County, MS, Monroe County, MS, Oktibbeha County, MS, Pontotoc County, MS, Union County, MS, Webster County, MS

The radar

The Columbus AFB radar (KGWX), 28 km from the middle of the area, began a volume at 05:03 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

Birmingham, AL (KBMX), launched 00:00Z, 5.0 hours before the alert went out and 187 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: 945 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 1005 m²/s²
0-3 km storm-relative helicity: 1189 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
Oct 16, 7:22 PM CDT	Mesoscale Discussion	SPC	Adams, Amite, Attala, Carroll, Choctaw, Claiborne and 51 more	53 min
Oct 16, 9:28 PM CDT	Mesoscale Discussion	SPC	Alcorn, Benton, Calhoun, Carroll, Chickasaw, Choctaw and 16 more	32 min
Oct 16, 9:44 PM CDT	Tornado Watch	SPC	Calhoun, Carroll, Chickasaw, Choctaw, Clay, Grenada and 12 more	7 hr
Oct 16, 11:29 PM CDT	Mesoscale Discussion	SPC	Amite, Attala, Clarke, Copiah, Covington, Forrest and 33 more	61 min
Oct 17, 1:01 AM CDT	Mesoscale Discussion	SPC	Adams, Amite, Attala, Carroll, Choctaw, Claiborne and 48 more	89 min
Oct 17, 1:38 AM CDT	Tornado Watch	SPC	Amite, Clarke, Covington, Forrest, George, Greene and 25 more	7 hr
Oct 17, 5:23 AM CDT	Mesoscale Discussion	SPC	Forrest, George, Greene, Hancock, Harrison, Jackson and 9 more	97 min
Oct 17, 7:26 AM CDT	Mesoscale Discussion	SPC	Clarke, Forrest, George, Greene, Hancock, Harrison and 7 more	94 min

Nearby

Mesoscale Discussions in Mississippi, 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.