Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 89, NWS Jacksonville, FL

June 13, 2021Marion County, Putnam County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 13, 2021, 3:35 PM EDT for Marion County, Putnam County, Florida. It was in force for 18 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, 3:35 PM EDT (19:35 UTC)
Expired
Jun 13, 2021, 3:53 PM EDT
In force
18 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Marion County, FL, Putnam County, FL

The radar

The Jacksonville radar (KJAX), 121 km from the middle of the area, began a volume at 19:40 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, 7.6 hours before the alert went out and 123 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-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 2021-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1032 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2021-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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.

413 
WUUS52 KJAX 131935
SVRJAX
FLC083-107-132015-
/O.NEW.KJAX.SV.W.0089.210613T1935Z-210613T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jacksonville FL
335 PM EDT Sun Jun 13 2021

The National Weather Service in Jacksonville has issued a

* Severe Thunderstorm Warning for...
  Northeastern Marion County in northern Florida...
  Southeastern Putnam County in northeastern Florida...

* Until 415 PM EDT.

* At 335 PM EDT, a severe thunderstorm was located near Lake Delancy,
  or 7 miles west of Pomona Park, moving south at 10 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Crescent City, Pomona Park, Salt Springs, Lake Delancy, Fruitland,
  Satsuma, Welaka, Lake Como and Georgetown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

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

&&

LAT...LON 2950 8186 2956 8174 2956 8157 2938 8146
      2932 8168 2931 8168 2929 8165 2928 8164
      2923 8177
TIME...MOT...LOC 1935Z 343DEG 7KT 2948 8172 

HAIL...1.25IN
WIND...60MPH
 
$$

HESS
1 follow-up statement
846 
WWUS52 KJAX 131953
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
353 PM EDT Sun Jun 13 2021

FLC083-107-132003-
/O.CAN.KJAX.SV.W.0089.000000T0000Z-210613T2015Z/
Marion FL-Putnam FL-
353 PM EDT Sun Jun 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MARION AND
SOUTHEASTERN PUTNAM COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However small hail, gusty
winds and heavy rain are still possible with this thunderstorm.

LAT...LON 2950 8186 2956 8174 2956 8157 2938 8146
      2932 8168 2931 8168 2929 8165 2928 8164
      2923 8177
TIME...MOT...LOC 1948Z 343DEG 7KT 2945 8171 

$$

HESS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 8:44 PM EDTSpecial Marine WarningJAX61 min
Jun 13, 2:06 PM EDTSpecial Weather StatementJAXAlachua39 min
Jun 13, 2:08 PM EDTSpecial Weather StatementJAXPutnam52 min
Jun 13, 2:11 PM EDTSpecial Marine WarningJAX64 min
Jun 13, 2:18 PM EDTSpecial Weather StatementJAXMarion27 min
Jun 13, 2:21 PM EDTSpecial Weather StatementJAXGilchrist39 min
Jun 13, 2:40 PM EDTSpecial Weather StatementJAXMarion50 min
Jun 13, 2:56 PM EDTSpecial Weather StatementJAXFlagler49 min
Jun 13, 3:02 PM EDTSpecial Weather StatementJAXAlachua, Putnam43 min
Jun 13, 3:04 PM EDTSpecial Weather StatementJAXSaint Johns41 min
Jun 13, 3:10 PM EDTSevere Thunderstorm WarningJAXFlagler35 min
Jun 13, 3:14 PM EDTSpecial Weather StatementJAXClay31 min
Jun 13, 3:19 PM EDTSpecial Marine WarningJAX41 min
Jun 13, 3:26 PM EDTSpecial Weather StatementJAXPutnam49 min
Jun 13, 3:40 PM EDTSpecial Marine WarningJAX65 min
Jun 13, 3:42 PM EDTSpecial Weather StatementJAXBradford, Clay48 min
Jun 13, 3:43 PM EDTTornado WarningJAXFlagler11 min
Jun 13, 3:46 PM EDTSpecial Weather StatementJAXSaint Johns29 min
Jun 13, 3:50 PM EDTSpecial Weather StatementJAXMarion40 min
Jun 13, 4:01 PM EDTSpecial Weather StatementJAXFlagler29 min
Jun 13, 4:21 PM EDTSpecial Weather StatementJAXClay54 min
Jun 13, 4:31 PM EDTSpecial Weather StatementJAXFlagler29 min
Jun 13, 4:50 PM EDTSpecial Weather StatementJAXDuval40 min
Jun 13, 4:56 PM EDTSevere Thunderstorm WarningJAXDuval14 min
Jun 13, 5:01 PM EDTFlash Flood WarningJAXDuval79 min
Jun 13, 5:50 PM EDTSpecial Weather StatementJAXBaker, Columbia40 min

Nearby

Severe Thunderstorm Warnings in Florida, 2021Every severe thunderstorm warning 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.