Alert archive / Florida / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 211, NWS Jacksonville, FL

August 29, 2018Clay County, Putnam County, Saint Johns County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Aug 29, 2018, 1:08 PM EDT for Clay County, Putnam County, Saint Johns County, Florida. It was in force for 17 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 29, 2018, 1:08 PM EDT (17:08 UTC)
Expired
Aug 29, 2018, 1:25 PM EDT
In force
17 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Clay County, FL, Putnam County, FL, Saint Johns County, FL

The radar

The Jacksonville radar (KJAX), 72 km from the middle of the area, began a volume at 17:09 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 severe thunderstorm warning 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 severe thunderstorm warning went out at Aug 29, 8:25 AM EDT, 4 hours 43 minutes earlier.

Area forecast discussion, Aug 29, 8:25 AM EDT, 4 hours 43 minutes before
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In the hours before

Special weather statement, Aug 29, 12:40 PM EDT, 28 minutes before
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Special weather statement, Aug 29, 12:48 PM EDT, 20 minutes before
Special Weather Statement
National Weather Service Jacksonville FL
1248 PM EDT WED AUG 29 2018

FLZ032-033-037-038-291730-
Putnam FL-Inland Flagler FL-Clay FL-Inland St. Johns FL-
1248 PM EDT WED AUG 29 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN FLAGLER...
SOUTHWESTERN ST. JOHNS...NORTHEASTERN PUTNAM AND EAST CENTRAL CLAY
COUNTIES UNTIL 130 PM EDT...

At 1247 PM EDT, Doppler radar was tracking a strong thunderstorm near
Hastings, moving northwest at 10 mph.

Wind gusts of 45 to 55 mph can be expected along with possible minor
wind damage.

Locations impacted include...
Green Cove Springs, Hastings, Bostwick, Federal Point, Picolata,
Spuds and Elkton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 2959 8146 2995 8185 3004 8161 2969 8134
TIME...MOT...LOC 1647Z 134DEG 10KT 2971 8145

23

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 12:40 PM EDTSpecial Weather StatementJAXGilchrist50 min
Aug 29, 12:48 PM EDTSpecial Weather StatementJAXSaint Johns42 min
Aug 29, 1:00 PM EDTAreal Flood AdvisoryJAXGilchrist90 min
Aug 29, 1:37 PM EDTAreal Flood AdvisoryJAXPutnam, Saint Johns83 min
Aug 29, 1:51 PM EDTSpecial Weather StatementJAXBaker, Columbia39 min
Aug 29, 2:09 PM EDTSpecial Weather StatementJAXBradford, Union36 min
Aug 29, 2:19 PM EDTAreal Flood AdvisoryJAXBradford, Clay86 min
Aug 29, 2:22 PM EDTAreal Flood AdvisoryJAXAlachua, Bradford, Clay, Putnam83 min
Aug 29, 2:39 PM EDTSpecial Weather StatementJAXBaker21 min
Aug 29, 2:40 PM EDTAreal Flood AdvisoryJAXAlachua, Columbia95 min
Aug 29, 3:19 PM EDTSpecial Weather StatementJAXHamilton41 min
Aug 29, 4:11 PM EDTAreal Flood AdvisoryJAXMarion2 hr
Aug 28, 8:03 PM EDTSpecial Weather StatementJAXClinch42 min
Aug 29, 3:39 PM EDTSpecial Weather StatementJAXEchols36 min
Aug 29, 4:41 PM EDTSpecial Weather StatementJAXAtkinson34 min
Aug 29, 5:15 PM EDTSpecial Weather StatementJAXAtkinson45 min

Nearby

Severe Thunderstorm Warnings in Florida, 2018Every severe thunderstorm warning in 2018

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.