Alert archive / Florida / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 224, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Nov 17, 2014, 2:28 PM EST for 4 counties in Florida. It was in force for 32 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
- Nov 17, 2014, 2:28 PM EST (19:28 UTC)
- Expired
- Nov 17, 2014, 3:00 PM EST
- In force
- 32 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
Counties Flagler County, FL, Marion County, FL, Putnam County, FL, Saint Johns County, FL
The radar
The Jacksonville radar (KJAX), 104 km from the middle of the area, began a volume at 19:28 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Nov 17, 10:57 AM EST | Tornado Watch | SPC | 4 hr |
| Nov 17, 12:30 PM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 7.5 hours before the alert went out and 106 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
- 177 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 703 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 214 m²/s²
- 0-3 km storm-relative helicity
- 231 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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 Nov 17, 2:07 PM EST, 21 minutes earlier.
Area forecast discussion, Nov 17, 2:07 PM EST, 21 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 616 AM EST MON NOV 17 2014 AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040- GAZ132>136-149>154-162>166-181014- ALTAMAHA SOUND GA TO FERNANDINA BEACH FL OUT 20 NM- FERNANDINA BEACH TO ST AUGUSTINE FL OUT 20 NM- ST AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM- ALTAMAHA SOUND GA TO FERNANDINA BEACH FL 20 NM TO 60 NM OFFSHORE- FERNANDINA BEACH TO ST AUGUSTINE FL 20 NM TO 60 NM OFFSHORE- ST AUGUSTINE TO FLAGLER BEACH FL 20 NM TO 60 NM OFFSHORE-HAMILTON- SUWANNEE-COLUMBIA-BAKER-NASSAU-DUVAL-UNION-BRADFORD-CLAY-ST JOHNS- GILCHRIST-ALACHUA-PUTNAM-FLAGLER-MARION-COFFEE-JEFF DAVIS-BACON- APPLING-WAYNE-ATKINSON-WARE-PIERCE-BRANTLEY-INLAND GLYNN- COASTAL GLYNN-ECHOLS-CLINCH-CHARLTON-INLAND CAMDEN-COASTAL CAMDEN- 616 AM EST MON NOV 17 2014 ...TORNADO WATCH IN EFFECT FOR PORTIONS OF INLAND SOUTHEAST GEORGIA AND INLAND NORTHEAST FLORIDA THROUGH 2 PM... ...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT... ...HARD FREEZE AND FREEZE WATCHES POSTED FOR TUESDAY NIGHT... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST FLORIDA... SOUTHEAST GEORGIA AND THE ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT... STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE FOR INLAND SOUTHEAST GEORGIA AND THE SUWANNEE VALLEY THROUGH EARLY AFTERNOON AHEAD OF A STRONG COLD FRONT. THESE STORMS...DEVELOPING IN ADVANCE OF A SQUALL LINE...WILL BE CAPABLE OF PRODUCING TORNADOES AND DAMAGING WIND GUSTS IN EXCESS OF 60 MPH. DAMAGING WIND GUSTS WILL BE THE PRIMARY THREAT WITHIN THE SQUALL LINE THAT WILL CROSS OUR AREA FROM LATE AFTERNOON THROUGH EARLY THIS EVENING. A MUCH COLDER AND DRIER AIR MASS WILL PLUNGE INTO OUR REGION IN THE WAKE OF THIS COLD FRONT LATER TONIGHT. GUSTY NORTHWESTERLY WINDS WILL OVERSPREAD THE COASTAL WATERS....WITH SMALL CRAFT ADVISORIES TONIGHT FOR THE NEAR SHORE WATERS AND NEAR GALE CONDITIONS OFFSHORE. WIND CHILLS WILL PLUMMET TO THE MID-20S OVER INTERIOR LOCATIONS IN SOUTHEAST GEORGIA AND THE SUWANNEE VALLEY TOWARDS SUNRISE...AS LOWS FALL INTO THE 30S. SMALL CRAFT ADVISORY CONDITIONS ARE IN EFFECT FOR THE COASTAL WATERS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... SMALL CRAFT ADVISORIES WILL CONTINUE FOR THE COASTAL WATERS THROUGH TUESDAY NIGHT. WINDS AND SEAS WILL SUBSIDE BY EARLY WEDNESDAY. THE COLDEST WEATHER OF THE SEASON THUS FAR IS EXPECTED ON TUESDAY AND WEDNESDAY NIGHT. HARD FREEZE WATCHES HAVE BEEN POSTED FOR MOST INLAND COUNTIES ON TUESDAY NIGHT...WHERE LOWS WILL FALL INTO THE LOW TO MID 20S. FREEZE WATCHES ARE POSTED ELSEWHERE...WHERE LOWS WILL FALL TO THE UPPER 20S TO THE LOWER 30S. AN ELEVATED FIRE DANGER IS EXPECTED TUESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE REQUESTED TO SELF-ACTIVATE IF WARNINGS ARE ISSUED. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX. NELSON/ABE
In the hours before
Local storm report, Nov 17, 1:56 PM EST, 32 minutes before
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</html>Local storm report, Nov 17, 2:10 PM EST, 18 minutes before
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</html>Local storm report, Nov 17, 2:17 PM EST, 11 minutes before
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</html>Local storm report, Nov 17, 2:19 PM EST, 9 minutes before
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</html>Local storm report, Nov 17, 2:23 PM EST, 5 minutes before
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</html>Local storm report, Nov 17, 2:28 PM EST, 0 minutes before
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</html>The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 16, 8:36 PM EST | Small Craft Advisory | JAX | 55 hr | |
| Nov 17, 2:56 AM EST | Freeze Watch | JAX | Flagler | 35 hr |
| Nov 17, 2:56 AM EST | Hard Freeze Watch | JAX | Baker, Bradford, Gilchrist, Nassau, Suwannee, Union | 25 hr |
| Nov 17, 11:09 AM EST | Special Weather Statement | JAX | Hamilton | 36 min |
| Nov 17, 11:23 AM EST | Severe Thunderstorm Warning | JAX | Columbia, Hamilton, Suwannee | 52 min |
| Nov 17, 11:51 AM EST | Special Weather Statement | JAX | Gilchrist | 39 min |
| Nov 17, 11:54 AM EST | Special Weather Statement | JAX | Baker | 51 min |
| Nov 17, 12:06 PM EST | Severe Thunderstorm Warning | JAX | Alachua, Baker, Bradford, Columbia, Gilchrist, Suwannee and 1 more | 54 min |
| Nov 17, 12:28 PM EST | Special Weather Statement | JAX | Nassau | 47 min |
| Nov 17, 12:43 PM EST | Tornado Warning | JAX | Baker, Bradford, Columbia, Union | 32 min |
| Nov 17, 12:47 PM EST | Severe Thunderstorm Warning | JAX | Alachua, Baker, Bradford, Clay, Duval, Gilchrist and 2 more | 58 min |
| Nov 17, 1:00 PM EST | Special Weather Statement | JAX | Nassau | 45 min |
| Nov 17, 1:03 PM EST | Special Marine Warning | JAX | 117 min | |
| Nov 17, 1:06 PM EST | Tornado Warning | JAX | Clay, Duval | 54 min |
| Nov 17, 1:19 PM EST | Severe Thunderstorm Warning | JAX | Nassau | 26 min |
| Nov 17, 1:22 PM EST | Tornado Warning | JAX | Nassau | 23 min |
| Nov 17, 1:25 PM EST | Severe Thunderstorm Warning | JAX | Alachua, Bradford, Clay, Flagler, Marion, Putnam and 1 more | 65 min |
| Nov 17, 2:57 PM EST | Special Marine Warning | JAX | 63 min | |
| Nov 17, 10:04 AM EST | Special Weather Statement | JAX | Coffee, Jeff Davis | 26 min |
| Nov 17, 10:30 AM EST | Severe Thunderstorm Warning | JAX | Appling, Bacon, Coffee | 45 min |
| Nov 17, 10:52 AM EST | Special Weather Statement | JAX | Echols | 38 min |
| Nov 17, 11:20 AM EST | Special Weather Statement | JAX | Ware | 25 min |
| Nov 17, 11:50 AM EST | Special Weather Statement | JAX | Atkinson | 25 min |
| Nov 17, 11:57 AM EST | Severe Thunderstorm Warning | JAX | Atkinson, Clinch, Pierce, Ware | 48 min |
| Nov 17, 12:17 PM EST | Special Weather Statement | JAX | Bacon, Wayne | 43 min |
| Nov 17, 1:31 PM EST | Special Weather Statement | JAX | Wayne | 29 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.