Alert archive / Alabama / Mesoscale Discussions in 2014

Mesoscale Discussion 38

January 28, 20145 states

The Storm Prediction Center issued this mesoscale discussion at Jan 28, 2014, 10:46 AM CST for 5 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jan 28, 2014, 10:46 AM CST (16:46 UTC)
Expired: Jan 28, 2014, 4:45 PM CST
In force: 6 hr
Issued by: the Storm Prediction Center

All 69 counties

Baldwin County, AL, Barbour County, AL, Bullock County, AL, Butler County, AL, Clarke County, AL, Coffee County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Escambia County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Mobile County, AL, Monroe County, AL, Montgomery County, AL, Pike County, AL, Russell County, AL, Washington County, AL, Wilcox County, AL, Escambia County, FL, Santa Rosa County, FL, Calhoun County, GA, Chattahoochee County, GA, Clay County, GA, Crawford County, GA, Early County, GA, Harris County, GA, Macon County, GA, Marion County, GA, Muscogee County, GA, Peach County, GA, Quitman County, GA, Randolph County, GA, Schley County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taylor County, GA, Terrell County, GA, Upson County, GA, Webster County, GA, Ascension Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Saint Charles Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Washington Parish, LA, Forrest County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Lamar County, MS, Marion County, MS, Pearl River County, MS, Perry County, MS, Stone County, MS, Walthall County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 116 km from the middle of the area, began a volume at 16:50 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 12:00Z, 4.8 hours before the alert went out and 209 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: 2683 m above ground
0-6 km bulk shear: 91 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 308 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
Jan 28, 5:23 AM CST	Mesoscale Discussion	SPC	Baldwin, Butler, Choctaw, Clarke, Coffee, Conecuh and 11 more	5 hr
Jan 28, 3:45 PM CST	Mesoscale Discussion	SPC	Baldwin, Bibb, Burke, Columbia, Emanuel, Glascock and 12 more	5 hr

Nearby

Mesoscale Discussions in Alabama, 2014 Mesoscale Discussions in Georgia, 2014 Mesoscale Discussions in Mississippi, 2014 Every mesoscale discussion in 2014

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.