Alert archive / Florida / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 86, NWS Jacksonville, FL

June 7, 20147 counties in Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 7, 2014, 12:47 AM EDT for 7 counties in Florida. It was in force for 58 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 7, 2014, 12:47 AM EDT (04:47 UTC)
Expired: Jun 7, 2014, 1:45 AM EDT
In force: 58 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

Counties Alachua County, FL, Baker County, FL, Bradford County, FL, Columbia County, FL, Gilchrist County, FL, Suwannee County, FL, Union County, FL

The radar

The Jacksonville radar (KJAX), 93 km from the middle of the area, began a volume at 04:48 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 00:00Z, 4.8 hours before the alert went out and 177 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: 3735 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 911 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 21 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

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 6, 9:55 PM EDT, 2 hours 52 minutes earlier.

Area forecast discussion, Jun 6, 9:55 PM EDT, 2 hours 52 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
955 PM EDT FRI JUN 6 2014

.UPDATE...CLUSTERS OF SHOWERS AND THUNDERSTORMS CONTINUE TO AFFECT
PARTS OF NORTHEAST FL AND SOUTHEAST GA AIDED BY LINGERING INSTABILITY
FROM DIURNAL HEATING AND UPPER LEVEL DISTURBANCES. MEAN MOTION OF
THE THE SHOWERS AND STORMS WILL BE SE TO S NEAR 10-15 MPH AND
CONTINUE TO PRODUCE OCCASIONAL STRONG TO POSSIBLY SEVERE WIND GUSTS
AND PERHAPS SOME SMALL HAIL. BRIEF LOCALLY HEAVY RAINFALL WILL ALSO
OCCUR. LATEST MESOANALYSIS SHOWS SBCAPE VALUES ARE STILL IN THE
2000-3000 J/KG RANGE AND DOWNDRAFT CAPE ALSO ELEVATED AROUND 1000J.
THUS THE THREAT OF SEVERE WEATHER IS NOT OVER AND SPC CONTINUES TO
SHOW A PORTION OF THE FORECAST AREA IN A SLIGHT RISK FROM AROUND
INTERSTATE 10 NORTHWARD. ANTICIPATE GENERALLY WEAKER STORM ACTIVITY
AROUND MIDNIGHT TO 2 AM TIME FRAME. MAY UPDATE FCST TO CONTINUE TO
SHOW SCT SHOWERS AND STORMS AFTER 2 AM AS ANOTHER SHORTWAVE DROPS IN
OVER ERN AL AND GA LATE TONIGHT AND EARLY SATURDAY MORNING.

&&

.AVIATION...
PREVAILING VFR IS EXPECTED OUTSIDE OF TSRA...WHICH ALLOW
CONDITIONS TO DETERIORATE TO IFR. VCTS CONTINUES PAST MIDNIGHT
BUT HAVE KEPT TEMPO ONLY AT JAX SINCE STORMS ARE WITHIN 5 MILES
OF THE AIRPORT. STORMS WILL WIND DOWN BETWEEN 04Z AND 06Z.

&&

.MARINE...
NO HEADLINES ARE EXPECTED. WINDS AND SEAS WILL BE HIGHER NEAR
STORMS AND SPECIAL MARINE WARNINGS HAVE BEEN ISSUED THIS EVENING.
EXPECT PREVAILING SW WINDS AFTER MIDNIGHT WITH HIGH PRESSURE SOUTH
OF THE WATERS AND A FRONTAL BOUNDARY STALLED JUST TO THE NORTH.

RIP CURRENTS: LOW RISK IS EXPECTED ON SATURDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  71  92  71  92 /  60  60  60  50
SSI  73  89  75  86 /  70  50  50  30
JAX  72  91  70  90 /  80  60  60  50
SGJ  73  88  73  87 /  50  50  50  40
GNV  71  90  70  91 /  30  50  50  50
OCF  70  91  70  91 /  10  50  40  50

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GA...NONE.
AM...NONE.
&&

ARS/MKT/PP

Hazardous weather outlook, Jun 6, 10:34 PM EDT, 2 hours 13 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1034 PM EDT FRI JUN 6 2014

AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-
GAZ132>136-149>154-162>166-070930-
ALACHUA-
ALTAMAHA SOUND GA TO FERNANDINA BEACH FL 20 NM TO 60 NM OFFSHORE-
ALTAMAHA SOUND GA TO FERNANDINA BEACH FL OUT TO 20 NM-APPLING-
ATKINSON-BACON-BAKER-BRADFORD-BRANTLEY-CAMDEN (COASTAL)-
CAMDEN (INLAND)-CHARLTON-CLAY-CLINCH-COFFEE-COLUMBIA-DUVAL-ECHOLS-
FERNANDINA BEACH TO ST AUGUSTINE FL 20 NM TO 60 NM OFFSHORE-
FERNANDINA BEACH TO ST AUGUSTINE FL OUT TO 20 NM-FLAGLER-GILCHRIST-
GLYNN (COASTAL)-GLYNN (INLAND)-HAMILTON-JEFF DAVIS-MARION-NASSAU-
PIERCE-PUTNAM-
ST AUGUSTINE TO FLAGLER BEACH FL 20 NM TO 60 NM OFFSHORE-
ST AUGUSTINE TO FLAGLER BEACH FL OUT TO 20 NM-ST JOHNS-SUWANNEE-
UNION-WARE-WAYNE-
1034 PM EDT FRI JUN 6 2014

...SLIGHT RISK OF SEVERE THUNDERSTORMS NORTH PORTIONS OF THE
FORECAST AREA...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST FLORIDA...
SOUTHEAST GEORGIA AND THE ADJACENT COASTAL WATERS.

.DAY ONE...REST OF TONIGHT...

SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED THROUGH LATE
THIS EVENING AND OVERNIGHT MAINLY OVER LOCATIONS FROM INTERSTATE
10 NORTH. THERE IS A SLIGHT RISK OF SEVERE STORMS OVER NORTH
PORTIONS OF THE FORECAST AREA WITH STRONG WINDS AND HAIL POSSIBLE.
VERY HEAVY DOWNPOURS WILL ACCOMPANY THE STRONGEST STORMS. STORM
MOTION WILL BE EAST TO SOUTHEAST AROUND 15 MPH. STORM INTENSITY IS
ANTICIPATED TO WEAKEN AFTER 2 AM.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

SCATTERED THUNDERSTORMS ARE EXPECTED EACH AFTERNOON AND EVENING. A
FEW OF THESE STORMS MAY BECOME STRONG PRODUCING GUSTY WINDS AND
HEAVY DOWNPOURS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT REQUEST BUT SPOTTERS ARE ENCOURAGED TO
SUBMIT REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE
OR YOUR EMERGENCY MANAGEMENT OFFICIALS.

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

In the hours before

Special weather statement, Jun 6, 11:35 PM EDT, 1 hour 12 minutes before

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Special weather statement, Jun 6, 11:51 PM EDT, 56 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1151 PM EDT FRI JUN 6 2014

FLZ020-GAZ162-070430-
ECHOLS-HAMILTON-
1151 PM EDT FRI JUN 6 2014

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR ECHOLS AND
HAMILTON COUNTIES FOR STRONG WINDS...SMALL HAIL AND EXCESSIVE
LIGHTNING VALID UNTIL 1230 AM EDT...

AT 1151 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 2 MILES SOUTHEAST OF STATENVILLE...
MOVING SOUTHEAST AT 20 MPH. THIS STRONG THUNDERSTORM WILL AFFECT
AREAS AROUND STATENVILLE AND JASPER THROUGH 1230 AM EDT. HAIL UP TO
THREE QUARTER INCH IN DIAMETER...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 3075 8300 3062 8266 3060 8267 3060 8270
      3056 8273 3054 8271 3053 8273 3051 8273
      3037 8282 3064 8314
TIME...MOT...LOC 0351Z 312DEG 16KT 3067 8300

SHASHY

Local storm report, Jun 7, 12:10 AM EDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1210 AM EDT SAT JUN 07 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1116 PM     TSTM WND DMG     ARGYLE                  31.07N 82.65W
06/06/2014                   CLINCH             GA   911 CALL CENTER

            TREES BLOWN DOWN.

&&

LSTRUBLE

Special weather statement, Jun 7, 12:28 AM EDT, 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1228 AM EDT SAT JUN 7 2014

FLZ023>025-032-GAZ164-070515-
BAKER-CHARLTON-CLAY-DUVAL-NASSAU-
1228 AM EDT SAT JUN 7 2014

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR CHARLTON...
CLAY...BAKER...DUVAL AND NASSAU COUNTIES FOR STRONG WINDS...SMALL
HAIL AND EXCESSIVE LIGHTNING VALID UNTIL 115 AM EDT...

AT 1228 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS CENTERED ALONG A LINE EXTENDING FROM 7 MILES
NORTHWEST OF ST. GEORGE TO 3 MILES SOUTHWEST OF GLEN SAINT MARY...
MOVING EAST AT 20 MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT
AREAS AROUND SANDERSON...GLEN SAINT MARY...MACCLENNY...ST. GEORGE...
MAXVILLE...BALDWIN...BRYCEVILLE...CISCO GARDENS...WHITEHOUSE AIR
FIELD AND OAKLEAF PLANTATION THROUGH 115 AM EDT. HAIL UP TO THREE
QUARTER INCH IN DIAMETER...EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND
GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR
DAMAGE. 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.

LAT...LON 3009 8181 3020 8236 3057 8223 3057 8222
      3068 8218 3059 8171
TIME...MOT...LOC 0428Z 282DEG 17KT 3057 8211 3025 8218

HESS

Local storm report, Jun 7, 12:32 AM EDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1232 AM EDT SAT JUN 07 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1228 AM     HAIL             LIVE OAK                30.29N 82.99W
06/07/2014  E0.25 INCH       SUWANNEE           FL   PUBLIC

            PEA SIZE HAIL AND GUSTY WINDS WERE REPORTED.

&&

ASHASHY

Local storm report, Jun 7, 12:42 AM EDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1242 AM EDT SAT JUN 07 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1225 AM     TSTM WND DMG     8 ENE SUWANNEE SPRINGS  30.42N 82.81W
06/07/2014                   HAMILTON           FL   911 CALL CENTER

            TREE WAS REPORTED DOWN NEAR U.S. HIGHWAY 41 NEAR GENOA.

&&

ASHASHY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 6, 8:00 PM EDT	Areal Flood Advisory	JAX	Baker	2 hr
Jun 6, 8:20 PM EDT	Special Weather Statement	JAX	Baker	40 min
Jun 6, 9:27 PM EDT	Special Weather Statement	JAX	Baker	33 min
Jun 6, 9:32 PM EDT	Special Marine Warning	JAX		118 min
Jun 6, 11:51 PM EDT	Special Weather Statement	JAX	Hamilton	39 min
Jun 7, 12:16 AM EDT	Severe Thunderstorm Warning	JAX	Columbia, Hamilton	44 min
Jun 7, 12:24 AM EDT	Severe Thunderstorm Warning	JAX	Columbia, Hamilton, Suwannee	51 min
Jun 7, 12:28 AM EDT	Special Weather Statement	JAX	Baker	47 min
Jun 7, 1:15 AM EDT	Special Weather Statement	JAX	Clay, Duval	60 min
Jun 7, 1:36 AM EDT	Special Weather Statement	JAX	Alachua, Bradford, Clay, Gilchrist	54 min
Jun 7, 2:27 AM EDT	Special Weather Statement	JAX	Flagler, Marion, Putnam, Saint Johns	63 min
Jun 7, 4:34 PM EDT	Special Weather Statement	JAX	Suwannee	26 min
Jun 7, 5:03 PM EDT	Special Weather Statement	JAX	Gilchrist	42 min
Jun 7, 5:08 PM EDT	Special Weather Statement	JAX	Marion	52 min
Jun 7, 6:02 PM EDT	Special Weather Statement	JAX	Marion	43 min
Jun 7, 6:47 PM EDT	Special Weather Statement	JAX	Marion	43 min
Jun 7, 7:25 PM EDT	Special Weather Statement	JAX	Marion	50 min
Jun 6, 8:45 PM EDT	Special Weather Statement	JAX	Jeff Davis	45 min
Jun 6, 9:40 PM EDT	Special Weather Statement	JAX	Appling, Bacon	50 min
Jun 6, 10:25 PM EDT	Special Weather Statement	JAX	Clinch, Ware	50 min
Jun 6, 10:42 PM EDT	Severe Thunderstorm Warning	JAX	Charlton, Clinch, Ware	48 min
Jun 6, 11:16 PM EDT	Special Weather Statement	JAX	Brantley, Glynn	44 min
Jun 6, 11:35 PM EDT	Special Weather Statement	JAX	Clinch, Echols, Ware	40 min

Nearby

Severe Thunderstorm Warnings in Florida, 2014 Every severe thunderstorm warning in 2014

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.