Alert archive / Florida / Mesoscale Discussions in 2009

Mesoscale Discussion 357

April 1, 200920 counties in Florida

The Storm Prediction Center issued this mesoscale discussion at Apr 1, 2009, 11:01 AM EDT for 20 counties in Florida. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued: Apr 1, 2009, 11:01 AM EDT (15:01 UTC)
Expired: Apr 1, 2009, 1:00 PM EDT
In force: 119 min
Issued by: the Storm Prediction Center

Counties Alachua County, FL, Bradford County, FL, Brevard County, FL, Citrus County, FL, Clay County, FL, Dixie County, FL, Flagler County, FL, Gilchrist County, FL, Hernando County, FL, Lafayette County, FL, Lake County, FL, Levy County, FL, Marion County, FL, Orange County, FL, Putnam County, FL, Saint Johns County, FL, Seminole County, FL, Sumter County, FL, Union County, FL, Volusia County, FL

The radar

The Jacksonville radar (KJAX), 153 km from the middle of the area, began a volume at 15:00 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.

Severe Thunderstorm Watch 100Apr 1, 1:25 PM EDT

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
Mar 31, 11:25 PM EDT	Mesoscale Discussion	SPC	Clay, Duval, Saint Johns	65 min
Apr 1, 1:24 PM EDT	Severe Thunderstorm Watch	SPC	Alachua, Citrus, Flagler, Gilchrist, Hernando, Lake and 8 more	5 hr
Apr 1, 4:44 PM EDT	Mesoscale Discussion	SPC	Brevard, Citrus, Dixie, Flagler, Indian River, Lake and 6 more	91 min

Nearby

Mesoscale Discussions in Florida, 2009 Every mesoscale discussion in 2009

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.