Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Jacksonville, FL

June 13, 2021Clay County, Florida

NWS Jacksonville, FL issued this special weather statement at Jun 13, 2021, 4:21 PM EDT for Clay County, Florida. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 13, 2021, 4:21 PM EDT (20:21 UTC)
Expired: Jun 13, 2021, 5:15 PM EDT
In force: 54 min
Issued by: NWS Jacksonville, FL

County Clay County, FL

The radar

The Jacksonville radar (KJAX), 39 km from the middle of the area, began a volume at 20:21 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 nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 8.4 hours before the alert went out and 41 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1032 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 642 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 24 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

512 
WWUS82 KJAX 132021
SPSJAX

Special Weather Statement
National Weather Service Jacksonville FL
421 PM EDT Sun Jun 13 2021
 
FLZ132-225-232-325-425-132115-
Eastern Clay FL-Western Clay FL-Western Duval FL-
South Central Duval FL-Trout River FL-
421 PM EDT Sun Jun 13 2021

...SIGNIFICANT WEATHER ADVISORY FOR CLAY AND WESTERN DUVAL COUNTIES
UNTIL 515 PM EDT...

* At 421 PM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm over Middleburg, moving north at 25
  mph.

* Small hail, wind gusts up to 50 mph, and minor flooding due to
  heavy rainfall is possible with this storm.

* Locations impacted include...
  Jacksonville, Orange Park, Jacksonville International Arpt,
  Middleburg, Maxville, Cisco Gardens, Ortega, Oakleaf Plantation,
  Bellair-Meadowbrook Terrace and Camp Blanding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.

Torrential rainfall is 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. If
you can hear thunder, you are close enough to be struck! Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 2985 8174 2990 8205 3027 8205 3051 8179
      3053 8167
TIME...MOT...LOC 2021Z 192DEG 24KT 3001 8190 

$$

HESS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 8:44 PM EDT	Special Marine Warning	JAX		61 min
Jun 13, 2:06 PM EDT	Special Weather Statement	JAX	Alachua	39 min
Jun 13, 2:08 PM EDT	Special Weather Statement	JAX	Putnam	52 min
Jun 13, 2:11 PM EDT	Special Marine Warning	JAX		64 min
Jun 13, 2:18 PM EDT	Special Weather Statement	JAX	Marion	27 min
Jun 13, 2:21 PM EDT	Special Weather Statement	JAX	Gilchrist	39 min
Jun 13, 2:40 PM EDT	Special Weather Statement	JAX	Marion	50 min
Jun 13, 2:56 PM EDT	Special Weather Statement	JAX	Flagler	49 min
Jun 13, 3:02 PM EDT	Special Weather Statement	JAX	Alachua, Putnam	43 min
Jun 13, 3:04 PM EDT	Special Weather Statement	JAX	Saint Johns	41 min
Jun 13, 3:10 PM EDT	Severe Thunderstorm Warning	JAX	Flagler	35 min
Jun 13, 3:14 PM EDT	Special Weather Statement	JAX	Clay	31 min
Jun 13, 3:19 PM EDT	Special Marine Warning	JAX		41 min
Jun 13, 3:26 PM EDT	Special Weather Statement	JAX	Putnam	49 min
Jun 13, 3:35 PM EDT	Severe Thunderstorm Warning	JAX	Marion, Putnam	18 min
Jun 13, 3:40 PM EDT	Special Marine Warning	JAX		65 min
Jun 13, 3:42 PM EDT	Special Weather Statement	JAX	Bradford, Clay	48 min
Jun 13, 3:43 PM EDT	Tornado Warning	JAX	Flagler	11 min
Jun 13, 3:46 PM EDT	Special Weather Statement	JAX	Saint Johns	29 min
Jun 13, 3:50 PM EDT	Special Weather Statement	JAX	Marion	40 min
Jun 13, 4:01 PM EDT	Special Weather Statement	JAX	Flagler	29 min
Jun 13, 4:31 PM EDT	Special Weather Statement	JAX	Flagler	29 min
Jun 13, 4:50 PM EDT	Special Weather Statement	JAX	Duval	40 min
Jun 13, 4:56 PM EDT	Severe Thunderstorm Warning	JAX	Duval	14 min
Jun 13, 5:01 PM EDT	Flash Flood Warning	JAX	Duval	79 min
Jun 13, 5:50 PM EDT	Special Weather Statement	JAX	Baker, Columbia	40 min
Jun 12, 8:02 PM EDT	Special Weather Statement	JAX	Atkinson, Clinch	43 min
Jun 12, 8:18 PM EDT	Special Weather Statement	JAX	Brantley, Pierce, Wayne	42 min
Jun 12, 8:33 PM EDT	Special Weather Statement	JAX	Bacon	27 min
Jun 12, 8:57 PM EDT	Special Weather Statement	JAX	Brantley, Glynn, Wayne	48 min

Nearby

Special Weather Statements in Florida, 2021 Every special weather statement in 2021

Sources

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