Alert archive / Florida / Red Flag Warnings in 2009

Red Flag Warning 41, NWS Jacksonville, FL

March 29, 20097 counties in Florida

NWS Jacksonville, FL issued this red flag warning at Mar 29, 2009, 1:51 PM EDT for 7 counties in Florida. It took effect at Mar 30, 2009, 11:00 AM EDT. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 29, 2009, 1:51 PM EDT (17:51 UTC)
In effect from: Mar 30, 2009, 11:00 AM EDT
Expired: Mar 30, 2009, 7:00 PM EDT
In force: 8 hr
Issued by: NWS Jacksonville, FL

Counties Baker County, FL, Bradford County, FL, Flagler County, FL, Gilchrist County, FL, Nassau County, FL, Suwannee County, FL, Union County, FL

The radar

The Jacksonville radar (KJAX), 71 km from the middle of the area, began a volume at 17:53 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 5.9 hours before the alert went out and 202 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 806 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: -64 m²/s²
0-3 km storm-relative helicity: 36 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 red flag 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 red flag warning went out at Mar 29, 9:24 AM EDT, 4 hours 27 minutes earlier.

Area forecast discussion, Mar 29, 9:24 AM EDT, 4 hours 27 minutes before

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Hazardous weather outlook, Mar 29, 12:44 PM EDT, 1 hour 7 minutes before

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In the hours before

Special weather statement, Mar 29, 7:56 AM EDT, 5 hours 55 minutes before

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Local storm report, Mar 29, 9:17 AM EDT, 4 hours 34 minutes before

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Local storm report, Mar 29, 10:27 AM EDT, 3 hours 24 minutes before

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Local storm report, Mar 29, 11:20 AM EDT, 2 hours 31 minutes before

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Local storm report, Mar 29, 11:45 AM EDT, 2 hours 6 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
Mar 28, 8:12 PM EDT	Special Weather Statement	JAX	Gilchrist	33 min
Mar 28, 8:45 PM EDT	Special Weather Statement	JAX	Alachua, Gilchrist	45 min
Mar 28, 8:49 PM EDT	Areal Flood Advisory	JAX	Alachua, Gilchrist	116 min
Mar 28, 9:26 PM EDT	Special Weather Statement	JAX	Bradford, Clay	49 min
Mar 28, 9:30 PM EDT	Areal Flood Advisory	JAX	Alachua, Bradford, Clay, Marion, Putnam, Union	2 hr
Mar 28, 9:59 PM EDT	Special Weather Statement	JAX	Saint Johns	61 min
Mar 28, 10:06 PM EDT	Areal Flood Advisory	JAX	Clay, Duval, Putnam, Saint Johns	114 min
Mar 28, 10:18 PM EDT	Severe Thunderstorm Warning	JAX	Clay, Putnam, Saint Johns	42 min
Mar 28, 10:20 PM EDT	Special Weather Statement	JAX	Hamilton	40 min
Mar 28, 10:24 PM EDT	Special Marine Warning	JAX		96 min
Mar 28, 10:38 PM EDT	Special Weather Statement	JAX	Saint Johns	52 min
Mar 28, 10:47 PM EDT	Areal Flood Advisory	JAX	Duval, Saint Johns	118 min
Mar 28, 11:51 PM EDT	Special Weather Statement	JAX	Nassau	54 min
Mar 28, 11:52 PM EDT	Special Weather Statement	JAX	Nassau	53 min
Mar 29, 12:04 AM EDT	Special Marine Warning	JAX		56 min
Mar 29, 12:48 AM EDT	Special Weather Statement	JAX	Alachua, Gilchrist	42 min
Mar 29, 1:13 AM EDT	Special Marine Warning	JAX		62 min
Mar 29, 1:35 AM EDT	Areal Flood Advisory	JAX	Alachua, Gilchrist	115 min
Mar 29, 1:42 AM EDT	Special Weather Statement	JAX	Bradford, Clay	48 min
Mar 29, 2:11 AM EDT	Special Weather Statement	JAX	Alachua	49 min
Mar 29, 2:18 AM EDT	Special Marine Warning	JAX		87 min
Mar 29, 2:36 AM EDT	Special Weather Statement	JAX	Duval	39 min
Mar 29, 2:42 AM EDT	Tornado Warning	JAX	Clay, Duval, Saint Johns	33 min
Mar 29, 3:03 AM EDT	Special Weather Statement	JAX	Marion, Putnam	57 min
Mar 29, 3:07 AM EDT	Special Marine Warning	JAX		113 min
Mar 29, 3:14 AM EDT	Severe Thunderstorm Warning	JAX	Marion	23 min
Mar 29, 3:22 AM EDT	Severe Thunderstorm Warning	JAX	Alachua, Bradford, Clay, Flagler, Marion, Putnam and 1 more	44 min
Mar 29, 3:29 AM EDT	Special Marine Warning	JAX		2 hr
Mar 29, 3:46 AM EDT	Areal Flood Advisory	JAX	Clay, Duval, Flagler, Putnam, Saint Johns	119 min
Mar 29, 3:53 AM EDT	Special Weather Statement	JAX	Marion	52 min
Mar 29, 4:04 AM EDT	Fire Weather Watch	JAX	Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more	10 hr
Mar 29, 4:04 AM EDT	Red Flag Warning	JAX	Baker, Bradford, Nassau, Suwannee, Union	14 hr
Mar 29, 4:17 AM EDT	Severe Thunderstorm Warning	JAX	Flagler, Marion, Putnam	22 min
Mar 29, 4:20 AM EDT	Lake Wind Advisory	JAX	Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more	15 hr
Mar 29, 4:41 AM EDT	Special Weather Statement	JAX	Flagler	34 min
Mar 29, 4:54 AM EDT	Special Marine Warning	JAX		66 min
Mar 29, 5:28 AM EDT	Special Marine Warning	JAX		62 min
Mar 29, 6:09 AM EDT	Special Marine Warning	JAX		27 min
Mar 29, 6:27 AM EDT	Special Marine Warning	JAX		38 min
Mar 29, 7:56 AM EDT	Special Weather Statement	JAX	Flagler	34 min
Mar 28, 8:16 PM EDT	Special Weather Statement	JAX	Appling, Bacon	44 min
Mar 28, 8:35 PM EDT	Areal Flood Warning	JAX	Appling, Bacon, Coffee, Jeff Davis, Pierce, Wayne	3 hr
Mar 28, 11:05 PM EDT	Special Weather Statement	JAX	Brantley, Clinch, Ware	40 min
Mar 28, 11:26 PM EDT	Special Weather Statement	JAX	Wayne	34 min
Mar 28, 11:37 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Wayne	23 min
Mar 29, 12:52 PM EDT	River Flood Warning	JAX	Appling, Toombs	28 days

Nearby

Red Flag Warnings in Florida, 2009 Every red flag 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.