Alert archive / Florida / Heat Advisories in 2024

Heat Advisory 21, NWS Jacksonville, FL

August 11, 202412 counties in Florida; 9 counties in Georgia

NWS Jacksonville, FL issued this heat advisory at Aug 11, 2024, 1:15 AM EDT for 12 counties in Florida; 9 counties in Georgia. It took effect at Aug 11, 2024, 11:00 AM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Aug 11, 2024, 1:15 AM EDT (05:15 UTC)
In effect from: Aug 11, 2024, 11:00 AM EDT
Expired: Aug 11, 2024, 7:00 PM EDT
In force: 8 hr
Issued by: NWS Jacksonville, FL

All 21 counties

Baker County, FL, Bradford County, FL, Clay County, FL, Columbia County, FL, Duval County, FL, Flagler County, FL, Hamilton County, FL, Marion County, FL, Nassau County, FL, Putnam County, FL, Suwannee County, FL, Union County, FL, Brantley County, GA, Camden County, GA, Charlton County, GA, Clinch County, GA, Echols County, GA, Glynn County, GA, Pierce County, GA, Ware County, GA, Wayne County, GA

The radar

The Jacksonville radar (KJAX), 43 km from the middle of the area, began a volume at 05:16 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.

What forecasters said that day

The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Jacksonville, FL wrote its last area forecast discussion before this heat advisory went out at Aug 10, 9:05 PM EDT, 4 hours 10 minutes earlier.

Area forecast discussion, Aug 10, 9:05 PM EDT, 4 hours 10 minutes before

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The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 11, 10:34 AM EDT	Special Weather Statement	JAX	Marion	26 min
Aug 11, 12:46 PM EDT	Special Weather Statement	JAX	Duval	29 min
Aug 11, 1:08 PM EDT	Special Weather Statement	JAX	Duval	37 min
Aug 11, 1:35 PM EDT	Special Marine Warning	JAX		34 min
Aug 11, 2:30 PM EDT	Special Weather Statement	JAX	Bradford	30 min
Aug 11, 2:58 PM EDT	Special Weather Statement	JAX	Saint Johns	32 min
Aug 11, 3:24 PM EDT	Special Marine Warning	JAX		24 min
Aug 11, 3:32 PM EDT	Special Marine Warning	JAX		22 min
Aug 11, 3:39 PM EDT	Special Weather Statement	JAX	Saint Johns	36 min
Aug 11, 4:33 PM EDT	Special Weather Statement	JAX	Nassau	27 min
Aug 11, 5:07 PM EDT	Areal Flood Advisory	JAX	Nassau	113 min
Aug 11, 5:33 PM EDT	Special Weather Statement	JAX	Hamilton	27 min
Aug 11, 5:58 PM EDT	Special Weather Statement	JAX	Hamilton	32 min
Aug 11, 5:59 PM EDT	Special Weather Statement	JAX	Putnam	31 min
Aug 11, 6:15 PM EDT	Areal Flood Advisory	JAX	Hamilton	105 min
Aug 11, 6:58 PM EDT	Special Weather Statement	JAX	Baker	32 min
Aug 11, 7:30 PM EDT	Areal Flood Advisory	JAX	Baker	2 hr
Aug 11, 7:38 PM EDT	Special Weather Statement	JAX	Baker	37 min
Aug 11, 3:04 PM EDT	Special Weather Statement	JAX	Camden	26 min
Aug 11, 3:45 PM EDT	Special Weather Statement	JAX	Camden	30 min
Aug 11, 4:10 PM EDT	Special Weather Statement	JAX	Glynn	35 min
Aug 11, 4:15 PM EDT	Areal Flood Advisory	JAX	Camden	106 min
Aug 11, 4:41 PM EDT	Special Weather Statement	JAX	Long	19 min
Aug 11, 7:23 PM EDT	Special Weather Statement	JAX	Brantley	37 min

Nearby

Heat Advisories in Florida, 2024 Heat Advisories in Georgia, 2024 Every heat advisory in 2024

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.