Alert archive / Florida / Mesoscale Discussions in 2022

Mesoscale Discussion 922

May 26, 20225 counties in Alabama; 13 counties in Florida

The Storm Prediction Center issued this mesoscale discussion at May 26, 2022, 9:46 AM CDT for 5 counties in Alabama; 13 counties in Florida. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued: May 26, 2022, 9:46 AM CDT (14:46 UTC)
Expired: May 26, 2022, 11:15 AM CDT
In force: 89 min
Issued by: the Storm Prediction Center
Concerning: Tornado watch 274

Counties Baldwin County, AL, Conecuh County, AL, Covington County, AL, Escambia County, AL, Mobile County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Franklin County, FL, Gulf County, FL, Holmes County, FL, Liberty County, FL, Okaloosa County, FL, Santa Rosa County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 26 km from the middle of the area, began a volume at 14:45 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, 2.8 hours before the alert went out and 178 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: 549 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 667 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 77 m²/s²
0-3 km storm-relative helicity: 86 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 26, 5:04 AM CDT	Mesoscale Discussion	SPC	Baldwin, Covington, Escambia, Geneva, Mobile	2 hr
May 26, 7:45 AM CDT	Tornado Watch	SPC	Baldwin, Clarke, Conecuh, Covington, Escambia, Mobile and 2 more	8 hr
May 26, 10:36 AM CDT	Mesoscale Discussion	SPC	Bibb, Blount, Chilton, Colbert, Cullman, Fayette and 17 more	114 min
May 26, 1:59 PM CDT	Mesoscale Discussion	SPC	Bay, Calhoun, Franklin, Gulf, Leon, Liberty and 3 more	2 hr

Nearby

Mesoscale Discussions in Florida, 2022 Mesoscale Discussions in Alabama, 2022 Every mesoscale discussion in 2022

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.