Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Jacksonville, FL

May 7, 2012Clay County, Florida

NWS Jacksonville, FL issued this special weather statement at May 7, 2012, 2:45 PM EDT for Clay County, Florida. It was in force for 30 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
May 7, 2012, 2:45 PM EDT (18:45 UTC)
Expired
May 7, 2012, 3:15 PM EDT
In force
30 min
Issued by
NWS Jacksonville, FL

County Clay County, FL

The radar

The Jacksonville radar (KJAX), 66 km from the middle of the area, began a volume at 18:45 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, 6.8 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-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 2012-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1033 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 2012-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 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
1033 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
640 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
31 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.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at May 7, 10:10 AM EDT, 4 hours 35 minutes earlier.

Area forecast discussion, May 7, 10:10 AM EDT, 4 hours 35 minutes before
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Hazardous weather outlook, May 7, 10:15 AM EDT, 4 hours 30 minutes before
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In the hours before

Special weather statement, May 7, 1:03 PM EDT, 1 hour 42 minutes before
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Local storm report, May 7, 1:14 PM EDT, 1 hour 31 minutes before
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Special weather statement, May 7, 1:40 PM EDT, 1 hour 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
140 PM EDT MON MAY 7 2012

FLZ037-071830-
PUTNAM-
140 PM EDT MON MAY 7 2012

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR SOUTHEASTERN
PUTNAM COUNTY FOR STRONG WINDS AND SMALL HAIL VALID UNTIL 230 PM
EDT...

AT 139 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED OVER POMONA PARK...MOVING NORTHEAST AT
10 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND
WELAKA...SATSUMA...GEORGETOWN...POMONA PARK...LAKE COMO...CRESCENT
CITY AND SAN MATEO THROUGH 230 PM EDT.

HAIL UP TO THREE QUARTER INCH IN DIAMETER AND GUSTY WINDS UP TO
45 MPH CAN BE EXPECTED. HEAVY RAINFALL WILL PRODUCE PONDING OF
WATER ON ROADWAYS AND MINOR FLOODING OF LOW-LYING AREAS.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT...OR YOU CAN CALL THE NATIONAL WEATHER SERVICE
IN JACKSONVILLE DIRECTLY AT 1-800-499-1594.

LAT...LON 2932 8167 2934 8168 2934 8166 2937 8167
      2937 8170 2953 8181 2962 8157 2955 8152
      2949 8152 2944 8149
TIME...MOT...LOC 1739Z 242DEG 7KT 2950 8160

ALLEN
Special weather statement, May 7, 2:01 PM EDT, 44 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
201 PM EDT MON MAY 7 2012

FLZ033-071845-
ST. JOHNS-
201 PM EDT MON MAY 7 2012

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR ST. JOHNS
COUNTY FOR STRONG WINDS AND SMALL HAIL VALID UNTIL 245 PM EDT...

AT 200 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED OVER ELKTON...OR 7 MILES NORTHEAST OF
HASTINGS...MOVING NORTH AT 15 MPH. THIS STRONG THUNDERSTORM WILL
ALSO AFFECT AREAS AROUND SPUDS...HASTINGS...DUPONT
CENTER...ELKTON...SAINT AUGUSTINE SHORES...SAINT AUGUSTINE...AND
ANASTASIA THROUGH 245 PM EDT.

HAIL UP TO THREE QUARTER INCH IN DIAMETER AND GUSTY WINDS OF 45 MPH
CAN BE EXPECTED. HEAVY RAINFALL WILL PRODUCE PONDING OF WATER ON
ROADWAYS AND MINOR FLOODING OF LOW-LYING AREAS.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT...OR YOU CAN CALL THE NATIONAL WEATHER SERVICE
IN JACKSONVILLE DIRECTLY AT 1-800-499-1594.

LAT...LON 2966 8133 2970 8152 2975 8152 2977 8154
      2993 8156 3010 8145 3007 8132 2994 8129
      2988 8126 2984 8126
TIME...MOT...LOC 1800Z 195DEG 12KT 2977 8141

ALLEN
Special weather statement, May 7, 2:32 PM EDT, 13 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
232 PM EDT MON MAY 7 2012

FLZ037-071900-
PUTNAM-
232 PM EDT MON MAY 7 2012

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR NORTHEASTERN
PUTNAM COUNTY FOR STRONG WINDS AND SMALL HAIL VALID UNTIL 300 PM
EDT...

AT 232 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 4 MILES WEST OF BOSTWICK...OR 8 MILES
NORTH OF PALATKA...MOVING NORTHEAST AT 15 MPH. THIS STRONG
THUNDERSTORM WILL ALSO AFFECT AREAS AROUND BOSTWICK THROUGH 300 PM
EDT.

HAIL UP TO THREE QUARTER INCH IN DIAMETER AND GUSTY WINDS OF 45
MPH CAN BE EXPECTED. HEAVY RAINFALL WILL PRODUCE PONDING OF
WATER ON ROADWAYS AND MINOR FLOODING OF LOW-LYING AREAS.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT...OR YOU CAN CALL THE NATIONAL WEATHER SERVICE
IN JACKSONVILLE DIRECTLY AT 1-800-499-1594.

LAT...LON 2963 8171 2978 8184 2984 8175 2984 8159
      2983 8158 2980 8156 2978 8154 2974 8152
TIME...MOT...LOC 1832Z 233DEG 12KT 2976 8169

ALLEN
Special weather statement, May 7, 2:45 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
245 PM EDT MON MAY 7 2012

FLZ032-033-071915-
CLAY-ST. JOHNS-
245 PM EDT MON MAY 7 2012

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR EASTERN CLAY
AND WESTERN ST. JOHNS COUNTIES FOR STRONG WINDS AND SMALL HAIL VALID
UNTIL 315 PM EDT...

AT 245 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 5 MILES WEST OF PICOLATA...OR 15 MILES
SOUTH OF FRUIT COVE...MOVING NORTH AT 5 MPH. THIS STRONG THUNDERSTORM
WILL ALSO AFFECT AREAS AROUND PICOLATA...SWITZERLAND...GREEN COVE
SPRINGS...FRUIT COVE AND DOCTORS INLET THROUGH 315 PM EDT.

HAIL UP TO THREE QUARTER INCH IN DIAMETER AND GUSTY WINDS 45 MPH CAN
BE EXPECTED. HEAVY RAINFALL WILL PRODUCE PONDING OF WATER ON
ROADWAYS AND MINOR FLOODING OF LOW-LYING AREAS.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT...OR YOU CAN CALL THE NATIONAL WEATHER SERVICE
IN JACKSONVILLE DIRECTLY AT 1-800-499-1594.

LAT...LON 2982 8157 2982 8158 2984 8159 2984 8164
      2984 8179 3013 8180 3008 8150
TIME...MOT...LOC 1845Z 186DEG 4KT 2989 8167

ALLEN

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 12:21 PM EDTSpecial Weather StatementJAXFlagler39 min
May 7, 12:49 PM EDTAreal Flood AdvisoryJAXFlagler78 min
May 7, 12:58 PM EDTSpecial Weather StatementJAXFlagler32 min
May 7, 1:03 PM EDTSpecial Weather StatementJAXFlagler42 min
May 7, 1:40 PM EDTSpecial Weather StatementJAXPutnam50 min
May 7, 2:01 PM EDTSpecial Weather StatementJAXSaint Johns44 min
May 7, 2:32 PM EDTSpecial Weather StatementJAXPutnam28 min
May 7, 2:45 PM EDTCoastal Flood AdvisoryJAXFlagler, Nassau10 hr
May 7, 2:51 PM EDTSpecial Weather StatementJAXNassau24 min
May 7, 3:16 PM EDTSpecial Weather StatementJAXDuval29 min
May 7, 3:20 PM EDTSevere Thunderstorm WarningJAXDuval40 min
May 7, 4:02 PM EDTSpecial Weather StatementJAXDuval43 min
May 7, 4:20 PM EDTSpecial Weather StatementJAXMarion25 min
May 7, 4:38 PM EDTSpecial Weather StatementJAXMarion37 min
May 7, 4:51 PM EDTSpecial Weather StatementJAXMarion24 min
May 7, 4:58 PM EDTSpecial Weather StatementJAXColumbia32 min
May 7, 5:00 PM EDTSpecial Weather StatementJAXMarion30 min
May 7, 5:19 PM EDTSpecial Weather StatementJAXAlachua26 min
May 7, 5:51 PM EDTSpecial Weather StatementJAXSuwannee24 min
May 7, 5:58 PM EDTSevere Thunderstorm WarningJAXSuwannee47 min
May 7, 6:46 PM EDTSpecial Weather StatementJAXSuwannee29 min
May 7, 7:35 PM EDTSpecial Weather StatementJAXHamilton25 min
May 6, 8:12 PM EDTSpecial Weather StatementJAXAppling33 min
May 6, 9:19 PM EDTSpecial Weather StatementJAXAppling26 min
May 6, 9:49 PM EDTSpecial Weather StatementJAXCamden26 min
May 6, 10:05 PM EDTSpecial Weather StatementJAXWayne25 min
May 6, 10:36 PM EDTSpecial Weather StatementJAXWayne39 min
May 6, 11:13 PM EDTAreal Flood AdvisoryJAXWayne62 min
May 6, 11:17 PM EDTSpecial Weather StatementJAXWayne43 min
May 7, 3:40 PM EDTSpecial Weather StatementJAXCoffee50 min
May 7, 3:52 PM EDTSpecial Weather StatementJAXJeff Davis38 min
May 7, 4:33 PM EDTSpecial Weather StatementJAXCoffee, Jeff Davis27 min
May 7, 4:53 PM EDTSpecial Weather StatementJAXAppling, Bacon37 min
May 7, 5:30 PM EDTSpecial Weather StatementJAXAppling30 min

Nearby

Special Weather Statements in Florida, 2012Every special weather statement in 2012

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.