Alert archive / Florida / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 292, NWS Jacksonville, FL

September 15, 2017Alachua County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Sep 15, 2017, 6:46 PM EDT for Alachua County, Florida. It was in force for 14 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: Sep 15, 2017, 6:46 PM EDT (22:46 UTC)
Expired: Sep 15, 2017, 7:00 PM EDT
In force: 14 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Alachua County, FL

The radar

The Jacksonville radar (KJAX), 110 km from the middle of the area, began a volume at 22:48 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 Sep 15, 3:21 PM EDT, 3 hours 25 minutes earlier.

Area forecast discussion, Sep 15, 3:21 PM EDT, 3 hours 25 minutes before

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Hazardous weather outlook, Sep 15, 6:31 AM EDT, 12 hours 15 minutes before

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In the hours before

Special weather statement, Sep 15, 3:25 PM EDT, 3 hours 21 minutes before

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Special weather statement, Sep 15, 3:56 PM EDT, 2 hours 50 minutes before

Special Weather Statement
National Weather Service Jacksonville FL
356 PM EDT FRI SEP 15 2017

GAZ162-163-152045-
Clinch GA-Echols GA-
356 PM EDT FRI SEP 15 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN ECHOLS AND
SOUTHEASTERN CLINCH COUNTIES UNTIL 445 PM EDT...

At 355 PM EDT, Doppler radar was tracking a strong thunderstorm near
Needmore, or near Fargo, moving east at 20 mph.

Nickel size hail and wind gusts of 40 to 50 mph can be expected
along with possible minor damage.

Locations impacted include...
Fargo and Needmore.

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.

&&

LAT...LON 3074 8269 3074 8244 3066 8243 3062 8243
      3061 8242 3058 8242 3060 8270
TIME...MOT...LOC 1955Z 291DEG 18KT 3071 8263

ZIBURA

Special weather statement, Sep 15, 4:10 PM EDT, 2 hours 36 minutes before

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Special weather statement, Sep 15, 4:53 PM EDT, 1 hour 53 minutes before

Special Weather Statement
National Weather Service Jacksonville FL
453 PM EDT FRI SEP 15 2017

GAZ149-163-152130-
Atkinson GA-Clinch GA-
453 PM EDT FRI SEP 15 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL ATKINSON AND
NORTHWESTERN CLINCH COUNTIES UNTIL 530 PM EDT...

At 453 PM EDT, Doppler radar was tracking a strong thunderstorm 10
miles south of Pearson, moving north at 15 mph.

Small hail and wind gusts of 40 to 50 mph can be expected along with
possible minor damage.

This storm will remain over mainly rural areas of south central
Atkinson and northwestern Clinch Counties.

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.

&&

LAT...LON 3126 8297 3125 8280 3112 8283 3113 8297
      3118 8297 3119 8298
TIME...MOT...LOC 2053Z 192DEG 11KT 3116 8292

ZIBURA

Special weather statement, Sep 15, 5:33 PM EDT, 1 hour 13 minutes before

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Special weather statement, Sep 15, 6:37 PM EDT, 9 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
Sep 15, 3:31 AM EDT	Coastal Flood Advisory	JAX	Duval, Flagler	14 days
Sep 15, 3:14 PM EDT	Small Craft Advisory for Hazardous Seas	JAX		5 days
Sep 15, 3:45 PM EDT	Areal Flood Warning	JAX	Baker, Columbia, Union	3 hr
Sep 15, 4:59 PM EDT	Areal Flood Warning	JAX	Bradford, Union	3 hr
Sep 15, 5:27 PM EDT	Areal Flood Warning	JAX	Bradford	3 hr
Sep 15, 6:37 PM EDT	Special Weather Statement	JAX	Alachua	23 min
Sep 15, 6:46 PM EDT	Areal Flood Warning	JAX	Alachua	119 min
Sep 15, 7:01 PM EDT	Special Weather Statement	JAX	Alachua	14 min
Sep 15, 7:18 PM EDT	Special Weather Statement	JAX	Marion	27 min
Sep 15, 7:37 PM EDT	Areal Flood Warning	JAX	Marion	83 min
Sep 15, 3:25 PM EDT	Special Weather Statement	JAX	Clinch	50 min
Sep 15, 3:56 PM EDT	Special Weather Statement	JAX	Clinch	49 min
Sep 15, 4:10 PM EDT	Special Weather Statement	JAX	Lanier	35 min
Sep 15, 4:15 PM EDT	Areal Flood Warning	JAX	Clinch, Echols	3 hr
Sep 15, 4:26 PM EDT	Areal Flood Warning	JAX	Clinch	3 hr
Sep 15, 4:53 PM EDT	Special Weather Statement	JAX	Atkinson	37 min
Sep 15, 5:33 PM EDT	Special Weather Statement	JAX	Atkinson	42 min

Nearby

Severe Thunderstorm Warnings in Florida, 2017 Every severe thunderstorm warning in 2017

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.