Alert archive / Florida / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 119, NWS Jacksonville, FL

June 16, 2009Marion County, Putnam County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 16, 2009, 6:10 PM EDT for Marion County, Putnam County, Florida. It was in force for 35 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, 2009, 6:10 PM EDT (22:10 UTC)
Expired: Jun 16, 2009, 6:45 PM EDT
In force: 35 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

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 22:11 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 10.2 hours before the alert went out and 172 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: 908 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 1032 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -15 m²/s²
0-3 km storm-relative helicity: 1 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Jun 16, 1:55 PM EDT, 4 hours 15 minutes earlier.

Area forecast discussion, Jun 16, 1:55 PM EDT, 4 hours 15 minutes before

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Hazardous weather outlook, Jun 16, 3:15 AM EDT, 14 hours 55 minutes before

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In the hours before

Special weather statement, Jun 16, 5:19 PM EDT, 51 minutes before

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Special weather statement, Jun 16, 5:25 PM EDT, 45 minutes before

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Special weather statement, Jun 16, 5:35 PM EDT, 35 minutes before

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Special weather statement, Jun 16, 5:42 PM EDT, 28 minutes before

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Local storm report, Jun 16, 5:45 PM EDT, 25 minutes before

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Special weather statement, Jun 16, 5:49 PM EDT, 21 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
Jun 16, 3:43 PM EDT	Special Weather Statement	JAX	Flagler	47 min
Jun 16, 4:04 PM EDT	Special Weather Statement	JAX	Saint Johns	26 min
Jun 16, 4:09 PM EDT	Special Weather Statement	JAX	Saint Johns	51 min
Jun 16, 4:30 PM EDT	Special Weather Statement	JAX	Duval	45 min
Jun 16, 4:32 PM EDT	Special Weather Statement	JAX	Flagler	28 min
Jun 16, 4:44 PM EDT	Special Weather Statement	JAX	Alachua	31 min
Jun 16, 4:56 PM EDT	Special Weather Statement	JAX	Saint Johns	34 min
Jun 16, 5:05 PM EDT	Special Weather Statement	JAX	Saint Johns	40 min
Jun 16, 5:16 PM EDT	Severe Thunderstorm Warning	JAX	Saint Johns	29 min
Jun 16, 5:19 PM EDT	Special Weather Statement	JAX	Duval	26 min
Jun 16, 5:25 PM EDT	Areal Flood Advisory	JAX	Flagler, Saint Johns	95 min
Jun 16, 5:25 PM EDT	Special Weather Statement	JAX	Alachua	50 min
Jun 16, 5:35 PM EDT	Special Weather Statement	JAX	Putnam	25 min
Jun 16, 5:42 PM EDT	Special Weather Statement	JAX	Saint Johns	33 min
Jun 16, 5:49 PM EDT	Special Weather Statement	JAX	Clay	26 min
Jun 16, 5:56 PM EDT	Severe Thunderstorm Warning	JAX	Marion, Putnam	49 min
Jun 16, 6:01 PM EDT	Severe Thunderstorm Warning	JAX	Flagler, Putnam	44 min
Jun 16, 6:14 PM EDT	Areal Flood Advisory	JAX	Putnam	61 min
Jun 16, 6:40 PM EDT	Special Weather Statement	JAX	Clay	50 min
Jun 16, 6:48 PM EDT	Special Weather Statement	JAX	Marion	42 min
Jun 16, 7:00 PM EDT	Special Weather Statement	JAX	Marion	45 min
Jun 16, 7:28 PM EDT	Areal Flood Advisory	JAX	Marion	2 hr
Jun 16, 7:41 PM EDT	Special Weather Statement	JAX	Marion	49 min

Nearby

Severe Thunderstorm Warnings in Florida, 2009 Every severe thunderstorm warning in 2009

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.