Alert archive / Florida / Mesoscale Discussions in 2022

Mesoscale Discussion 76

January 16, 20228 counties in Florida

The Storm Prediction Center issued this mesoscale discussion at Jan 16, 2022, 9:47 AM EST for 8 counties in Florida. It was in force for 58 min.

The area

The outline as issued.

The facts

Issued: Jan 16, 2022, 9:47 AM EST (14:47 UTC)
Expired: Jan 16, 2022, 10:45 AM EST
In force: 58 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch possible
Chance of a watch: 40%

Counties Broward County, FL, Collier County, FL, Hendry County, FL, Martin County, FL, Miami-Dade County, FL, Monroe County, FL, Palm Beach County, FL, Saint Lucie County, FL

The radar

The Miami radar (KAMX), 65 km from the middle of the area, began a volume at 14:52 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 15Jan 16, 10:05 AM EST

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 2.8 hours before the alert went out and 59 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: 21 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 997 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 202 m²/s²
0-3 km storm-relative helicity: 261 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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
Jan 15, 11:18 PM EST	Mesoscale Discussion	SPC	Citrus, Dixie, Franklin, Levy, Taylor, Wakulla	2 hr
Jan 16, 4:55 AM EST	Mesoscale Discussion	SPC	Citrus, Hernando, Hillsborough, Manatee, Pasco, Pinellas and 1 more	2 hr
Jan 16, 7:56 AM EST	Mesoscale Discussion	SPC	Charlotte, Collier, Lee, Monroe	3 hr
Jan 16, 10:04 AM EST	Tornado Watch	SPC	Broward, Collier, Hendry, Miami-Dade, Palm Beach	5 hr
Jan 16, 12:20 PM EST	Mesoscale Discussion	SPC	Broward, Miami-Dade	85 min

Nearby

Mesoscale Discussions in Florida, 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.