Alert archive / Florida / Mesoscale Discussions in 2020

Mesoscale Discussion 1789

November 11, 20204 counties in Florida

The Storm Prediction Center issued this mesoscale discussion at Nov 11, 2020, 4:36 AM EST for 4 counties in Florida. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Nov 11, 2020, 4:36 AM EST (09:36 UTC)
Expired: Nov 11, 2020, 7:00 AM EST
In force: 2 hr
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch possible
Chance of a watch: 40%

Counties Charlotte County, FL, Collier County, FL, Lee County, FL, Monroe County, FL

The radar

The Miami radar (KAMX), 131 km from the middle of the area, began a volume at 09:37 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 507Nov 11, 8:00 AM EST

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
Nov 11, 8:04 AM EST	Tornado Watch	SPC	Charlotte, Collier, DeSoto, Hardee, Hillsborough, Lee and 3 more	9 hr
Nov 11, 11:56 AM EST	Mesoscale Discussion	SPC	Charlotte, Collier, DeSoto, Hardee, Hillsborough, Lee and 2 more	2 hr
Nov 11, 2:14 PM EST	Mesoscale Discussion	SPC	Broward, Glades, Monroe, Palm Beach	61 min
Nov 11, 4:01 PM EST	Mesoscale Discussion	SPC	Charlotte, Collier, DeSoto, Hardee, Hillsborough, Lee and 3 more	59 min

Nearby

Mesoscale Discussions in Florida, 2020 Every mesoscale discussion in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.