Alert archive / Georgia / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 10, NWS Jacksonville, FL

February 26, 2015Camden County, Glynn County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Feb 26, 2015, 1:07 AM EST for Camden County, Glynn County, Georgia. It was in force for 23 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: Feb 26, 2015, 1:07 AM EST (06:07 UTC)
Expired: Feb 26, 2015, 1:30 AM EST
In force: 23 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

Counties Camden County, GA, Glynn County, GA

The radar

The Jacksonville radar (KJAX), 66 km from the middle of the area, began a volume at 06:07 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, 6.1 hours before the alert went out and 64 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: 416 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 401 m²/s²
0-3 km storm-relative helicity: 459 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 Feb 25, 7:40 PM EST, 5 hours 27 minutes earlier.

Area forecast discussion, Feb 25, 7:40 PM EST, 5 hours 27 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
740 PM EST WED FEB 25 2015

.UPDATE...

CURRENT FORECAST TIMING IS ON TRACK. EXPECT INITIAL LINE OF
CONVECTION AHEAD OF THE FRONT TO REACH FAR WESTERN COUNTIES
AROUND 03Z...THEN MOVE QUICKLY TO THE SOUTHEAST. THE MAIN LINE
SHOULD CLEAR TO THE SOUTHEAST AROUND 10Z.

THE BEST POTENTIAL FOR ANY STRONG STORMS WILL BE NEAR OR JUST
AHEAD OF THE FRONT...WITH THE POTENTIAL FOR ELEVATED WINDS ABOVE
THE SURFACE TO MIX DOWN. FAR INLAND COUNTIES WILL HAVE THE BEST
POTENTIAL FOR STRONG TO SEVERE STORMS AS THE LINE SHOULD WEAKEN
DURING THE OVERNIGHT DUE TO DIURNAL EFFECTS. WITH SHEER NEAR THE
SURFACE LOW COULD NOT RULE OUT AN ISOLATED TORNADO NEAR THE
INTERSTATE 75 CORRIDOR.

TEMPERATURES IN THE WARM SECTOR AHEAD OF THE FRONT WILL REMAIN
STEADY OR SLOWLY RISE OVERNIGHT...THEN FALL AFTER FRONTAL PASSAGE.

&&

.AVIATION...

WARM FRONT JUST SOUTH OF THE AREA WILL MOVE NORTH OF THE TAF SITES
DURING THE EVENING. WINDS WILL SHIFT FROM SE TO S AND SW AND BECOME GUSTY AT
TIMES AS LOW PRESSURE INTENSIFIES OVER THE FL PANHANDLE.  IFR CIGS WIDESPREAD
NORTH OF WARM FRONT. ONCE IN WARM SECTOR...ANTICIPATING A RISE TO MVFR.

LINE OF SHOWERS WITH A FEW EMBEDDED T-STORMS WILL MOVE OVER TAF SITES DURING
06Z-10Z PERIOD TONIGHT. THEN COLD FRONT MOVES THROUGH WITH MODEL GUIDANCE
SUGGESTING POTENTIAL FOR CIGS TO DROP BACK TO IFR. FOR NOW...HAVE BKN010 TOWARD
DAWN IN TAFS. SOME IMPROVEMENT IN CIGS ANTICIPATED DURING THE DAY
THURSDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  41  54  38  57 / 100  10   0   0
SSI  45  54  41  54 / 100  20   0   0
JAX  52  60  42  58 / 100  20   0   0
SGJ  55  61  45  59 /  80  40   0  10
GNV  57  66  43  63 / 100  20   0  10
OCF  61  65  44  65 / 100  30  10  20

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GA...NONE.
AM...SMALL CRAFT ADVISORY UNTIL 9 AM EST THURSDAY FOR WATERS FROM
     ALTAMAHA SOUND GA TO FERNANDINA BEACH FL FROM 20 TO 60 NM-
     WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL FROM 20 TO
     60 NM-WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL FROM 20
     TO 60 NM.

     SMALL CRAFT ADVISORY UNTIL 6 AM EST THURSDAY FOR COASTAL WATERS
     FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT 20 NM-
     COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL
     OUT 20 NM-COASTAL WATERS FROM ST. AUGUSTINE TO FLAGLER
     BEACH FL OUT 20 NM.

&&

STRUBLE/WOLF

Hazardous weather outlook, Feb 25, 7:45 PM EST, 5 hours 22 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
745 PM EST WED FEB 25 2015

AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-124-125-
GAZ132>136-149>154-162>166-270045-
COASTAL WATERS FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT
20 NM-
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT
20 NM-
COASTAL WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM-
WATERS FROM ALTAMAHA SOUND GA TO FERNANDINA BEACH FL FROM 20 TO
60 NM-
WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL FROM 20 TO 60 NM-
WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL FROM 20 TO 60 NM-
HAMILTON-SUWANNEE-COLUMBIA-BAKER-INLAND NASSAU-INLAND DUVAL-UNION-
BRADFORD-CLAY-ST. JOHNS-GILCHRIST-ALACHUA-PUTNAM-FLAGLER-MARION-
COASTAL NASSAU-COASTAL DUVAL-COFFEE-JEFF DAVIS-BACON-APPLING-
WAYNE-ATKINSON-WARE-PIERCE-BRANTLEY-INLAND GLYNN-COASTAL GLYNN-
ECHOLS-CLINCH-CHARLTON-INLAND CAMDEN-COASTAL CAMDEN-
745 PM EST WED FEB 25 2015

...SMALL CRAFT ADVISORIES IN EFFECT FOR TONIGHT...

...STRONG STORMS EXPECTED TONIGHT WITH AN ISOLATED SEVERE STORM
POSSIBLE...

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

.DAY ONE...TONIGHT...

SOUTH/SOUTHWESTERLY WINDS WILL INCREASE TONIGHT ACROSS THE
ATLANTIC COASTAL WATERS AND SMALL CRAFT ADVISORIES ARE IN EFFECT.

LOW PRESSURE WILL TRACK ACROSS THE REGION TONIGHT. A COLD FRONT
ASSOCIATED WITH THIS LOW WILL SWEEP EAST DURING THE OVERNIGHT.
SHOWERS AND THUNDERSTORMS ARE EXPECTED ALONG AND AHEAD OF THIS
FRONT. SOME STRONG STORMS WILL DEVELOP IN RESPONSE TO THE FRONT. A
FEW SEVERE STORMS WITH AN ISOLATED TORNADO WILL BE
POSSIBLE...MAINLY WELL INLAND.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

SMALL CRAFT ADVISORY CONDITIONS WILL BE POSSIBLE FRIDAY NIGHT AND
SATURDAY ACROSS THE ATLANTIC COASTAL WATERS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

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

In the hours before

Local storm report, Feb 25, 10:43 PM EST, 2 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1043 PM EST WED FEB 25 2015

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

1030 PM     TSTM WND DMG     1 ENE JENNINGS          30.60N 83.10W
02/25/2015                   HAMILTON           FL   TRAINED SPOTTER

            TRAINED SPOTTER REPORTS ONE TREE DOWNED ALONG WITH LARGE
            BRANCHES IN JENNINGS.

&&

NELSON

Special weather statement, Feb 25, 11:03 PM EST, 2 hours 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1103 PM EST WED FEB 25 2015

FLZ020>022-GAZ162-260430-
COLUMBIA FL-HAMILTON FL-SUWANNEE FL-ECHOLS GA-
1103 PM EST WED FEB 25 2015

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL COLUMBIA...
HAMILTON...NORTHEASTERN SUWANNEE AND SOUTHWESTERN ECHOLS COUNTIES
UNTIL 1130 PM EST...

AT 1102 PM EST...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
NEAR LIVE OAK...MOVING NORTHEAST AT 55 MPH.

GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR
WIND DAMAGE.

LOCATIONS IMPACTED INCLUDE...
LIVE OAK...JASPER...WHITE SPRINGS...SUWANNEE RIVER STATE PARK...
SUWANNEE SPRINGS...CROSSROADS AND HOUSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 3075 8293 3045 8275 3035 8262 3020 8308
      3046 8319
TIME...MOT...LOC 0402Z 240DEG 49KT 3034 8301

PP

Local storm report, Feb 25, 11:27 PM EST, 1 hour 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1127 PM EST WED FEB 25 2015

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

1112 PM     NON-TSTM WND GST ESE LAKE CITY           30.19N 82.64W
02/25/2015  E50 MPH          COLUMBIA           FL   TRAINED SPOTTER

            TRAINED SPOTTER ESTIMATES WIND GUSTS UP TO 50 MPH WELL
            AHEAD OF THE SQUALL LINE.

&&

NELSON

Local storm report, Feb 25, 11:39 PM EST, 1 hour 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1139 PM EST WED FEB 25 2015

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

1130 PM     TSTM WND DMG     LIVE OAK                30.29N 82.99W
02/25/2015                   SUWANNEE           FL   911 CALL CENTER

            911 DISPATCH AND SUWANNEE COUNTY EMERGENCY MANAGEMENT
            REPORT TREES AND POWERLINES DOWNED BY STRONG WIND GUSTS
            THROUGHOUT THE NORTHERN HALF OF THE COUNTY. PEA SIZED
            HAIL REPORTED NEAR INTERSTATE 10 AND U.S. ROUTE 90.

&&

NELSON

Special weather statement, Feb 26, 1:04 AM EST, 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
104 AM EST THU FEB 26 2015

GAZ153-154-165-166-260630-
INLAND GLYNN GA-COASTAL CAMDEN GA-COASTAL GLYNN GA-INLAND CAMDEN GA-
104 AM EST THU FEB 26 2015

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL GLYNN AND CENTRAL CAMDEN
COUNTIES UNTIL 130 AM EST...

AT 103 AM EST...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
BRUNSWICK...MOVING NORTHEAST AT 55 MPH.

GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR
WIND DAMAGE.

LOCATIONS IMPACTED INCLUDE...
ST. MARYS...KINGSLAND...BRUNSWICK...ST. SIMONS ISLAND...WOODBINE...
DOCK JUNCTION...JEKYLL ISLAND...COUNTRY CLUB ESTATES...DOVER BLUFF
AND HARRIETTS BLUFF.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

LAT...LON 3112 8140 3114 8137 3113 8135 3100 8140
      3106 8149 3106 8151 3104 8147 3102 8147
      3102 8145 3099 8163 3097 8145 3091 8147
      3098 8141 3089 8141 3077 8165 3107 8175
      3130 8142 3128 8128
TIME...MOT...LOC 0603Z 240DEG 49KT 3108 8155

PETERSON

Local storm report, Feb 26, 1:07 AM EST, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
107 AM EST THU FEB 26 2015

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

1227 AM     NON-TSTM WND GST 5 SE ALACHUA            29.73N 82.42W
02/26/2015  M41.00 MPH       ALACHUA            FL   MESONET

            A NON CONVECTIVE WIND GUST OF 41 MPH WAS MEASURED AT A
            CWOP SITE NEAR ALACHUA.

1235 AM     NON-TSTM WND GST 1 SE LAKE CITY          30.19N 82.64W
02/26/2015  M43.00 MPH       COLUMBIA           FL   AWOS

            A NON CONVECTIVE WIND GUST OF 43 MPH WAS MEASURED AT THE
            LAKE CITY GATEWAY AIRPORT.

&&

SHULER

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 25, 9:39 PM EST	Special Weather Statement	JAX	Baker, Columbia, Hamilton, Suwannee	51 min
Feb 25, 10:24 PM EST	Severe Thunderstorm Warning	JAX	Columbia, Hamilton, Suwannee	36 min
Feb 25, 10:54 PM EST	Severe Thunderstorm Warning	JAX	Hamilton	36 min
Feb 25, 11:03 PM EST	Special Weather Statement	JAX	Hamilton	27 min
Feb 25, 11:26 PM EST	Severe Thunderstorm Warning	JAX	Columbia, Hamilton, Suwannee	34 min
Feb 25, 11:45 PM EST	Severe Thunderstorm Warning	JAX	Baker, Columbia, Hamilton	45 min
Feb 26, 12:01 AM EST	Severe Thunderstorm Warning	JAX	Columbia, Hamilton, Suwannee	29 min
Feb 26, 12:33 AM EST	Severe Thunderstorm Warning	JAX	Baker, Columbia, Hamilton, Nassau	42 min
Feb 26, 12:38 AM EST	Severe Thunderstorm Warning	JAX	Baker, Columbia, Gilchrist, Suwannee, Union	37 min
Feb 26, 1:00 AM EST	Special Marine Warning	JAX		60 min
Feb 26, 1:19 AM EST	Severe Thunderstorm Warning	JAX	Baker, Columbia, Union	41 min
Feb 26, 1:31 AM EST	Severe Thunderstorm Warning	JAX	Alachua, Gilchrist	29 min
Feb 26, 1:49 AM EST	Special Weather Statement	JAX	Nassau	41 min
Feb 26, 1:53 AM EST	Special Marine Warning	JAX		97 min
Feb 26, 2:00 AM EST	Severe Thunderstorm Warning	JAX	Alachua, Bradford	9 min
Feb 26, 2:11 AM EST	Special Marine Warning	JAX		64 min
Feb 26, 2:50 AM EST	Special Weather Statement	JAX	Clay, Duval, Marion, Putnam, Saint Johns	40 min
Feb 26, 3:14 AM EST	Special Marine Warning	JAX		61 min
Feb 26, 3:32 AM EST	Special Weather Statement	JAX	Flagler, Saint Johns	43 min
Feb 26, 1:04 AM EST	Special Weather Statement	JAX	Camden, Glynn	26 min
Feb 26, 1:23 AM EST	Special Weather Statement	JAX	Camden	52 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2015 Every severe thunderstorm warning in 2015

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.