Alert archive / Florida / Red Flag Warnings in 2009

Red Flag Warning 40, NWS Jacksonville, FL

March 29, 20095 counties in Florida

NWS Jacksonville, FL issued this red flag warning at Mar 29, 2009, 4:04 AM EDT for 5 counties in Florida. It took effect at Mar 29, 2009, 1:00 PM EDT. It was in force for 5 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, 4:04 AM EDT (08:04 UTC)
In effect from: Mar 29, 2009, 1:00 PM EDT
Expired: Mar 29, 2009, 6:00 PM EDT
In force: 5 hr
Issued by: NWS Jacksonville, FL

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

The radar

The Jacksonville radar (KJAX), 66 km from the middle of the area, began a volume at 08:05 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 00:00Z, 8.1 hours before the alert went out and 67 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: 264 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 1552 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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, 3:34 AM EDT, 30 minutes earlier.

Area forecast discussion, Mar 29, 3:34 AM EDT, 30 minutes before

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Hazardous weather outlook, Mar 29, 12:55 AM EDT, 3 hours 9 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1255 AM EDT SUN MAR 29 2009

FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-291000-
ALACHUA-APPLING-ATKINSON-BACON-BAKER-BRADFORD-BRANTLEY-
CAMDEN (COASTAL)-CAMDEN (INLAND)-CHARLTON-CLAY-CLINCH-COFFEE-
COLUMBIA-DUVAL-ECHOLS-FLAGLER-GILCHRIST-GLYNN (COASTAL)-
GLYNN (INLAND)-HAMILTON-JEFF DAVIS-MARION-NASSAU-PIERCE-PUTNAM-
ST JOHNS-SUWANNEE-UNION-WARE-WAYNE-
1255 AM EDT SUN MAR 29 2009

THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA.

.DAY ONE...REMAINDER OF TONIGHT...

...ISOLATED STRONG TO SEVERE STORMS POSSIBLE OVERNIGHT...

SCATTERED SHOWER AND THUNDERSTORM ACTIVITY AHEAD OF A COLD FRONT
CONTINUES TO DECREASE IN AREAL COVERAGE AS IT SHIFTS EASTWARD ACROSS
THE AREA. HOWEVER...ISOLATED STRONG STORMS REMAIN POSSIBLE GENERALLY
SOUTHEAST OF A LINE FROM JESUP TO LIVE OAK THROUGH THE EARLY MORNING
HOURS. A FEW SEVERE THUNDERSTORMS MAY STILL OCCUR AS STORMS MOVE OUT
OF THE NORTHEASTERN GULF OF MEXICO INTO THE LOWER SUWANNEE VALLEY AS
WELL AS ALACHUA AND MARION COUNTIES. NOAA WEATHER RADIO LISTENERS IN
NORTHEAST FLORIDA AND EXTREME SOUTHEAST GEORGIA SHOULD LEAVE THE
RADIO ALERT FEATURE ON OVERNIGHT IN CASE WARNINGS ARE ISSUED.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

THERE WILL BE A HIGH FIRE DANGER OVER SECTIONS OF NORTHEAST FLORIDA
ON SUNDAY AFTERNOON DUE TO LOW RELATIVE HUMIDITY AND WINDY
CONDITIONS.

ANOTHER LOW PRESSURE AREA AND A FRONTAL BOUNDARY MAY PRODUCE A
ROUND OF SHOWERS AND THUNDERSTORMS TUESDAY NIGHT AND WEDNESDAY AND
POSSIBLY AGAIN ON THURSDAY.

.SPOTTER INFORMATION STATEMENT...

STORM SPOTTERS ARE REQUESTED TO SELF-ACTIVATE IF WARNINGS ARE ISSUED
OVERNIGHT. PLEASE RELAY ANY REPORTS OF SEVERE WEATHER OR FLOODING TO
THE NATIONAL WEATHER SERVICE AND LOCAL COUNTY EMERGENCY MANAGEMENT.

FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE
IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX.

ECZ/SEC

In the hours before

Special weather statement, Mar 29, 12:48 AM EDT, 3 hours 16 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1248 AM EDT SUN MAR 29 2009

FLZ021-022-030-035-036-290530-
ALACHUA-COLUMBIA-GILCHRIST-SUWANNEE-UNION-
1248 AM EDT SUN MAR 29 2009

...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR NORTHWESTERN
ALACHUA...WESTERN UNION...SOUTHEASTERN SUWANNEE...SOUTHERN COLUMBIA
AND GILCHRIST COUNTIES FOR STRONG WINDS VALID UNTIL 130 AM EDT...

AT 1248 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS CENTERED ALONG A LINE EXTENDING FROM 16 MILES
WEST OF BELL TO 20 MILES SOUTHWEST OF TRENTON...MOVING NORTHEAST AT
50 MPH. THESE STRONG THUNDERSTORMS WILL AFFECT AREAS AROUND
TRENTON...BELL...ICHETUCKNEE SPRINGS STATE PARK...HILDRETH...
NEWBERRY...FORT WHITE...COLUMBIA...HIGH SPRINGS...OLENO STATE PARK
AND WORTHINGTON SPRINGS THROUGH 130 AM EDT. GUSTY WINDS OF 40 TO 50
MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR WIND DAMAGE.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

LAT...LON 2966 8295 2979 8294 2986 8288 2988 8289
      2990 8292 2995 8293 3024 8250 2968 8233
      2953 8263 2954 8265 2956 8267 2956 8275
      2958 8278 2960 8295 2964 8297
TIME...MOT...LOC 0448Z 233DEG 45KT 2977 8303 2948 8297

CARROLL

Special weather statement, Mar 29, 1:42 AM EDT, 2 hours 22 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
142 AM EDT SUN MAR 29 2009

FLZ031-032-036-290630-
ALACHUA-BRADFORD-CLAY-
142 AM EDT SUN MAR 29 2009

...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR NORTHERN
ALACHUA...BRADFORD AND CLAY COUNTIES FOR STRONG WINDS AND EXCESSIVE
LIGHTNING VALID UNTIL 230 AM EDT...

AT 142 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 5 MILES SOUTH OF LA CROSSE...OR 9 MILES
NORTHWEST OF GAINESVILLE...MOVING NORTHEAST AT 50 MPH. THIS STRONG
THUNDERSTORM WILL AFFECT AREAS AROUND LA CROSSE...BROOKER...
WALDO...NEW RIVER...HAMPTON...SAMPSON...STARKE...LAWTEY...KINGSLEY
AND PENNEY FARMS THROUGH 230 AM EDT. EXCESSIVE CLOUD-TO-GROUND
LIGHTNING AND GUSTY WINDS OF 40 TO 50 MPH CAN BE EXPECTED ALONG WITH
POSSIBLE MINOR DAMAGE.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

LAT...LON 2969 8238 2984 8250 2996 8232 2996 8230
      2998 8228 3019 8197 3017 8173 2992 8164
TIME...MOT...LOC 0542Z 235DEG 44KT 2983 8234

CARROLL

Special weather statement, Mar 29, 2:11 AM EDT, 1 hour 53 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
211 AM EDT SUN MAR 29 2009

FLZ032-036-037-040-290700-
ALACHUA-CLAY-MARION-PUTNAM-
211 AM EDT SUN MAR 29 2009

...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR SOUTHERN
ALACHUA...SOUTHWESTERN CLAY...NORTHERN MARION AND WESTERN PUTNAM
COUNTIES FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL 300 AM
EDT...

AT 211 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 16 MILES SOUTHWEST OF ARCHER...OR 7
MILES SOUTHWEST OF BRONSON...MOVING EAST AT 70 MPH. THIS STRONG
THUNDERSTORM WILL AFFECT AREAS AROUND ARCHER...MICANOPY...
FLEMINGTON...REDDICK...NEWNANS LAKE...MCINTOSH...GAINESVILLE
AIRPORT...GAINESVILLE...CROSS CREEK AND ROCHELLE THROUGH 300 AM EDT.
EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 40 TO 50 MPH
CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

LAT...LON 2948 8241 2947 8255 2953 8256 2954 8266
      2959 8266 2979 8209 2974 8205 2980 8204
      2983 8196 2933 8166 2924 8240
TIME...MOT...LOC 0611Z 249DEG 62KT 2945 8260

CARROLL

Special weather statement, Mar 29, 2:36 AM EDT, 1 hour 28 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
236 AM EDT SUN MAR 29 2009

FLZ025-032-033-290715-
CLAY-DUVAL-ST. JOHNS-
236 AM EDT SUN MAR 29 2009

...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR NORTHEASTERN
CLAY...NORTHERN ST. JOHNS AND SOUTHEASTERN DUVAL COUNTIES FOR STRONG
WINDS AND EXCESSIVE LIGHTNING VALID UNTIL 315 AM EDT...

AT 236 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 2 MILES WEST OF PENNEY FARMS...OR 11
MILES SOUTHWEST OF LAKESIDE...MOVING NORTHEAST AT 45 MPH. THIS STRONG
THUNDERSTORM WILL AFFECT AREAS AROUND PENNEY FARMS...LAKESIDE...
GREEN COVE SPRINGS...DOCTORS INLET...ASBURY LAKE...ORANGE PARK...
MANDARIN...SWITZERLAND...FRUIT COVE AND DURBIN THROUGH 315 AM EDT.
EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH
CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

LAT...LON 2992 8178 3008 8188 3039 8139 3033 8139
      3030 8138 3026 8137 3021 8135 3002 8131
TIME...MOT...LOC 0636Z 241DEG 40KT 3005 8173

CARROLL

Special weather statement, Mar 29, 3:03 AM EDT, 1 hour 1 minute before

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Special weather statement, Mar 29, 3:53 AM EDT, 11 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, 4:17 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 29, 1:51 PM EDT	Red Flag Warning	JAX	Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more	29 hr
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.