Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 113, NWS Jacksonville, FL

June 16, 2001Saint Johns County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 16, 2001, 6:06 PM EDT for Saint Johns County, Florida. It was in force for 39 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
Jun 16, 2001, 6:06 PM EDT (22:06 UTC)
Expired
Jun 16, 2001, 6:45 PM EDT
In force
39 min
Issued by
NWS Jacksonville, FL
Area
Whole counties

County Saint Johns County, FL

The radar

The Jacksonville radar (KJAX), 70 km from the middle of the area, began a volume at 22:06 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, 10.1 hours before the alert went out and 71 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 2001-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 524 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2001-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 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
524 J/kg
Mixed-layer CIN
-172 J/kg
Mixed-layer LCL
1096 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
-12 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS52 KJAX 162206
SVRJAX
FLC109-162245-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
606 PM EDT SAT JUN 16 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ST. JOHNS COUNTY IN NORTHEAST FLORIDA

* UNTIL 645 PM EDT

* AT 606 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH DAMAGING WINDS 2 MILES EAST OF DURBIN...OR
  ABOUT 5 MILES WEST OF GUANA RIVER STATE PARK...MOVING EAST AT 10
  MPH.

* SOME LOCATIONS NEAR THE PATH OF THE STORM THROUGH 645 PM EDT...
  DURBIN AND SAWGRASS...
  GUANA RIVER STATE PARK AND SOUTH PONTE VEDRA BEACH...


$$8

MOBBS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 4:39 PM EDTSevere Thunderstorm WarningJAXColumbia36 min
Jun 16, 5:12 PM EDTSevere Thunderstorm WarningJAXBaker33 min
Jun 16, 5:17 PM EDTSevere Thunderstorm WarningJAXDuval, Saint Johns28 min
Jun 16, 5:24 PM EDTSevere Thunderstorm WarningJAXDuval, Nassau51 min
Jun 16, 5:52 PM EDTSevere Thunderstorm WarningJAXMarion38 min
Jun 16, 6:13 PM EDTSevere Thunderstorm WarningJAXDuval, Nassau47 min
Jun 16, 7:36 PM EDTSevere Thunderstorm WarningJAXFlagler29 min

Nearby

Severe Thunderstorm Warnings in Florida, 2001Every severe thunderstorm warning in 2001

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.