Alert archive / Florida / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 111, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 14, 2014, 3:57 PM EDT for Flagler County, Florida. It was in force for 48 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 14, 2014, 3:57 PM EDT (19:57 UTC)
- Expired
- Jun 14, 2014, 4:45 PM EDT
- In force
- 48 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
County Flagler County, FL
The radar
The Jacksonville radar (KJAX), 119 km from the middle of the area, began a volume at 20:00 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, 8.0 hours before the alert went out and 121 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.
- Mixed-layer CAPE
- 1643 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 695 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 14, 2:25 PM EDT, 1 hour 32 minutes earlier.
Area forecast discussion, Jun 14, 2:25 PM EDT, 1 hour 32 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 225 PM EDT SAT JUN 14 2014 .SHORT TERM... REST OF THE AFTN...SCT TO NMRS SHOWERS AND STORMS WILL CONTINUE AND SHIFT ENE AROUND 20 MPH. LOCALLY HEAVY RAINFALL AND FREQUENT LIGHTNING WILL BE THE MAIN THREATS. STRONG DOWNBURST TYPE STORM ACTIVITY WOULD BE MOST LIKELY OVER THE N HALF OF THE CWA WHERE STEEPER LOW LEVEL LAPSE RATES ARE EXPECTED. ENHANCED DOWNDRAFT CAPE VALUES ARE ANTICIPATED AROUND 700-1000 OVER SE GA. TONIGHT...ISOLD TO SCT SHOWERS AND STORMS EXPECTED IN THE EVENING THEN FADING BY MIDNIGHT. SOME PATCHY LIGHT FOG WILL BE POSSIBLE OVER PARTS OF INLAND SE GA BUT NOT ENOUGH TO JUSTIFY INSERTING INTO THE FCST. A SLIGHT UPTICK IN RAIN CHANCES TO ABOUT 15-20% MAY MATERIALIZE AFTER ABOUT 4 AM AROUND WRN GILCHRIST TO WRN MARION COUNTIES DUE TO LOW LEVEL MOISTURE CONVERGENCE ORIGINATING IN THE GULF OF MEXICO AND A MOIST/UNSTABLE AIRMASS. SUNDAY THROUGH MONDAY NIGHT... SOME WEAK TROUGHING PRESENT ACROSS THE REGION THIS PERIOD. HOWEVER... MAIN FOCUS FOR PRECIPITATION WILL BE FROM DIURNAL EFFECTS...COUPLED WITH SEA BREEZE BOUNDARY ENHANCEMENT. EXPECT CONVECTION TO INITIATE IN THE LATE MORNING TO EARLY AFTERNOON...THEN LASTING WELL INTO THE EVENING HOURS...WITH LITTLE IF ANY ACTIVITY OVERNIGHT. TEMPERATURES ARE EXPECTED TO BE NEAR SEASONAL NORMALS. .LONG TERM /TUESDAY THROUGH SATURDAY/... A SURFACE RIDGE WILL BUILD OVER THE FLORIDA PENINSULA THROUGH THE WEEK. EXPECT TYPICAL SUMMER WEATHER PATTERN WITH AFTERNOON/EVENING SHOWERS AND STORMS EACH DAY AS RESULT OF SEA BREEZE AND OUTFLOW BOUNDARIES. WITH A MID LEVEL RIDGE NORTHWEST OF THE AREA MUCH OF THE WEEK AND A TROUGH TO OUR SOUTH...HIGHER RAIN CHANCES WILL BE OVER NE FL. POPS WILL GENERALLY BE NEAR CLIMO. TEMPERATURES WILL BE SEASONABLE. && .AVIATION...SCT TO NMRS SHOWERS AND STORMS WILL CONTINUE TO FORM THROUGH EARLY THIS EVENING. SINCE CONVECTION TRENDS ARE INCREASING...TEMPO GROUPS LOOK GOOD FOR NOW WITH MVFR CONDITIONS IN CONVECTION BUT CONVECTIVE CHANCES SHOULD DIMINISH BY AROUND 00Z. MAY BE SOME LINGERING STORMS JUST W OF JAX AND VQQ AROUND 00Z/01Z. OTHERWISE...VFR PREVAILS THOUGH A BRIEF PERIOD MVFR VSBY IN BR LIKELY AROUND VQQ 08Z-12Z SUN MORNING. MODELS SHOW PERHAPS LESS SHOWER AND TSTM ON SUNDAY AND FOR NOW DID NOT PLACE IN CONVECTION. && .MARINE... S TO SW FLOW AROUND 10-15 KT AND SEAS 2-4 FT WILL CONTINUE INTO SUN MORNING THEN VARIABLE TO ONSHORE SUN AFTN TO SUN NIGHT. A FAIRLY WEAK FLOW PATTERN IS EXPECTED THIS UPCOMING WEEK. SCATTERED SHOWERS AND STORMS WILL DEVELOP EACH AFTERNOON OVER LAND...POSSIBLY SPREADING OVER THE WATERS. RIP CURRENTS...LOW RISK DUE TO LOW SURF HEIGHTS AND OFFSHORE FLOW. && .PRELIMINARY POINT TEMPS/POPS... AMG 68 90 69 91 / 30 40 40 40 SSI 72 83 73 87 / 30 30 20 20 JAX 69 89 71 89 / 30 50 50 50 SGJ 71 86 73 86 / 30 40 40 30 GNV 68 88 69 90 / 20 50 40 50 OCF 68 88 69 90 / 20 50 30 50 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...NONE. GA...NONE. AM...NONE. && SHASHY/STRUBLE/PETERSON
Hazardous weather outlook, Jun 14, 8:16 AM EDT, 7 hours 41 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 816 AM EDT SAT JUN 14 2014 AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-GAZ132>136- 149>154-162>166-150815- 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- 816 AM EDT SAT JUN 14 2014 ...SCATTERED TO NUMEROUS STORMS TODAY WITH ISOLATED STRONG TO SEVERE STORMS POSSIBLE... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST FLORIDA... SOUTHEAST GEORGIA AND THE ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT... SCATTERED TO NUMEROUS STORMS WILL MOVE EAST AROUND 15 TO 20 MPH ACROSS THE REGION TODAY WITH THE HIGHEST COVERAGE EXPECTED SOUTH OF THE I-10 CORRIDOR DURING THE MORNING AND EARLY AFTERNOON HOURS. ISOLATED STRONG TO POSSIBLY SEVERE STORMS WITH STRONG GUSTY WINDS WILL BE POSSIBLE. IN ADDITION...SOME OF THE STORMS WILL PRODUCE TORRENTIAL DOWNPOURS AND FREQUENT LIGHTNING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY... SCATTERED TO NUMEROUS THUNDERSTORM ACTIVITY IS EXPECTED THROUGH EARLY NEXT WEEK. A FEW STRONG STORMS WILL BE POSSIBLE WHICH WILL BE CAPABLE OF PRODUCING STRONG GUSTY WINDS...HAIL...LOCALLY HEAVY RAINS...AND FREQUENT LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT REQUESTED AT THIS TIME. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX. JDS/ARS
In the hours before
Special weather statement, Jun 14, 3:09 PM EDT, 48 minutes before
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</html>Special weather statement, Jun 14, 3:29 PM EDT, 28 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
329 PM EDT SAT JUN 14 2014
FLZ038-142015-
FLAGLER-
329 PM EDT SAT JUN 14 2014
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR FLAGLER COUNTY
FOR STRONG WINDS AND SMALL HAIL VALID UNTIL 415 PM EDT...
AT 329 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED OVER VOLUSIA COUNTY...MOVING NORTHEAST
AT 10 MPH. THIS STRONG THUNDERSTORM WILL IMPACT MAINLY RURAL AREAS OF
THE INDICATED COUNTY THROUGH 415 PM EDT. HAIL UP TO THREE QUARTER
INCH IN DIAMETER 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 2926 8116 2926 8141 2926 8142 2930 8143
2937 8143 2948 8117 2940 8114 2927 8114
TIME...MOT...LOC 1929Z 238DEG 9KT 2922 8141
STRUBLEThe office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 12:59 PM EDT | Special Marine Warning | JAX | 2 hr | |
| Jun 14, 3:09 PM EDT | Special Weather Statement | JAX | Alachua | 51 min |
| Jun 14, 3:19 PM EDT | Special Marine Warning | JAX | 116 min | |
| Jun 14, 3:29 PM EDT | Special Weather Statement | JAX | Flagler | 46 min |
| Jun 14, 3:40 PM EDT | Special Marine Warning | JAX | 2 hr | |
| Jun 14, 5:03 PM EDT | Areal Flood Advisory | JAX | Flagler | 117 min |
| Jun 14, 5:17 PM EDT | Areal Flood Advisory | JAX | Duval | 118 min |
| Jun 14, 5:24 PM EDT | Special Weather Statement | JAX | Duval | 51 min |
| Jun 14, 5:25 PM EDT | Special Marine Warning | JAX | 2 hr | |
| Jun 14, 5:54 PM EDT | Severe Thunderstorm Warning | JAX | Duval, Saint Johns | 51 min |
| Jun 14, 6:20 PM EDT | Areal Flood Advisory | JAX | Duval | 55 min |
| Jun 14, 6:27 PM EDT | Special Weather Statement | JAX | Duval | 48 min |
| Jun 14, 6:47 PM EDT | Areal Flood Warning | JAX | Duval | 58 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2014Every 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.