Alert archive / Florida / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 89, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 8, 2018, 3:41 PM EDT for Columbia County, Hamilton County, Suwannee County, Florida. It was in force for 49 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 8, 2018, 3:41 PM EDT (19:41 UTC)
- Expired
- Jun 8, 2018, 4:30 PM EDT
- In force
- 49 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Columbia County, FL, Hamilton County, FL, Suwannee County, FL
The radar
The Moody AFB radar (KVAX), 67 km from the middle of the area, began a volume at 19:43 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 12:00Z, 7.7 hours before the alert went out and 139 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
- 730 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 1053 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 8 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 8, 3:35 PM EDT, 6 minutes earlier.
Area forecast discussion, Jun 8, 3:35 PM EDT, 6 minutes before
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Special weather statement, Jun 8, 2:24 PM EDT, 1 hour 17 minutes before
Special Weather Statement
National Weather Service Jacksonville FL
224 PM EDT FRI JUN 8 2018
FLZ036-040-081915-
Alachua FL-Marion FL-
224 PM EDT FRI JUN 8 2018
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL ALACHUA AND NORTHWESTERN
MARION COUNTIES UNTIL 315 PM EDT...
At 224 PM EDT, Doppler radar was tracking a strong thunderstorm 9
miles northeast of Williston, moving north at 15 mph.
Excessive cloud-to-ground lightning and wind gusts of 40 to 50 mph
can be expected along with possible minor damage.
Locations impacted include...
Gainesville, University Of Florida, Gainesville Airport, Rochelle,
Newnans Lake, Waldo, Micanopy and Flemington.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 2940 8241 2948 8241 2949 8247 2975 8249
2982 8214 2938 8225
TIME...MOT...LOC 1824Z 188DEG 11KT 2947 8235
HESSSpecial weather statement, Jun 8, 2:54 PM EDT, 47 minutes before
Special Weather Statement
National Weather Service Jacksonville FL
254 PM EDT FRI JUN 8 2018
FLZ021-081945-
Suwannee FL-
254 PM EDT FRI JUN 8 2018
...SIGNIFICANT WEATHER ADVISORY FOR SUWANNEE COUNTY UNTIL 345 PM
EDT...
At 254 PM EDT, Doppler radar was tracking a strong thunderstorm over
Mcalpin, or 11 miles south of Live Oak, moving north at 10 mph.
Wind gusts of 40 to 50 mph can be expected along with possible minor
wind damage.
Locations impacted include...
Live Oak, Suwannee Springs, Obrien, Mcalpin, Newburn and Houston.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3031 8321 3035 8321 3035 8319 3037 8319
3043 8300 3039 8292 3001 8282 3002 8301
3006 8304 3007 8307 3008 8307 3008 8309
3030 8322
TIME...MOT...LOC 1854Z 160DEG 11KT 3012 8298
HESSSpecial weather statement, Jun 8, 2:58 PM EDT, 43 minutes before
Special Weather Statement National Weather Service Jacksonville FL 258 PM EDT FRI JUN 8 2018 FLZ033-038-133-138-081945- Coastal Flagler FL-Coastal St. Johns FL-Inland Flagler FL- Inland St. Johns FL- 258 PM EDT FRI JUN 8 2018 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN FLAGLER AND SOUTHEASTERN ST. JOHNS COUNTIES UNTIL 345 PM EDT... At 258 PM EDT, Doppler radar was tracking a strong thunderstorm near Palm Coast, moving north at 10 mph. Wind gusts of 40 to 50 mph can be expected along with possible minor wind damage. Locations impacted include... Palm Coast, Saint Augustine Beach, Marineland, Crescent Beach, Saint Augustine Shores, Butler Beach, Spuds, Dupont Center and Elkton. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 2956 8117 2950 8136 2976 8152 2985 8123 TIME...MOT...LOC 1858Z 160DEG 10KT 2960 8130 HESS
Special weather statement, Jun 8, 3:02 PM EDT, 39 minutes before
Special Weather Statement
National Weather Service Jacksonville FL
302 PM EDT FRI JUN 8 2018
FLZ021-081945-
Suwannee FL-
302 PM EDT FRI JUN 8 2018
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN SUWANNEE COUNTY UNTIL
345 PM EDT...
At 302 PM EDT, Doppler radar was tracking a strong thunderstorm over
Mcalpin, or 8 miles south of Live Oak, moving north at 10 mph.
Nickel size hail and wind gusts of 45 to 55 mph can be expected along
with possible minor damage.
Locations impacted include...
Live Oak, Mcalpin and Houston.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 3036 8317 3039 8293 3038 8291 3039 8291
3039 8289 3037 8289 3036 8286 3011 8286
3008 8306
TIME...MOT...LOC 1902Z 171DEG 9KT 3017 8298
HESSSpecial weather statement, Jun 8, 3:29 PM EDT, 12 minutes before
Special Weather Statement National Weather Service Jacksonville FL 329 PM EDT FRI JUN 8 2018 FLZ020>022-082015- Columbia FL-Hamilton FL-Suwannee FL- 329 PM EDT FRI JUN 8 2018 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN COLUMBIA...EASTERN SUWANNEE AND SOUTHEASTERN HAMILTON COUNTIES UNTIL 415 PM EDT... At 329 PM EDT, Doppler radar was tracking a strong thunderstorm near Lake City, moving west at 10 mph. Nickel size hail and wind gusts of 45 to 55 mph can be expected along with possible minor damage. Locations impacted include... Lake City, White Springs, Columbia, Wellborn, Five Points, Winfield, Suwannee Valley and Watertown. PRECAUTIONARY/PREPAREDNESS ACTIONS... This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. && LAT...LON 3036 8259 3000 8263 3000 8289 3044 8285 TIME...MOT...LOC 1929Z 103DEG 8KT 3015 8270 23
Special weather statement, Jun 8, 3:34 PM EDT, 7 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 |
|---|---|---|---|---|
| Jun 7, 8:30 PM EDT | Special Weather Statement | JAX | Union | 30 min |
| Jun 7, 8:32 PM EDT | Areal Flood Advisory | JAX | Baker, Union | 118 min |
| Jun 7, 9:06 PM EDT | Special Weather Statement | JAX | Alachua | 24 min |
| Jun 7, 9:15 PM EDT | Areal Flood Advisory | JAX | Bradford, Union | 2 hr |
| Jun 7, 9:19 PM EDT | Special Weather Statement | JAX | Gilchrist | 41 min |
| Jun 7, 9:32 PM EDT | Special Weather Statement | JAX | Suwannee | 43 min |
| Jun 7, 9:35 PM EDT | Areal Flood Advisory | JAX | Alachua | 115 min |
| Jun 8, 1:23 PM EDT | Special Weather Statement | JAX | Marion | 52 min |
| Jun 8, 1:33 PM EDT | Areal Flood Advisory | JAX | Marion | 117 min |
| Jun 8, 1:38 PM EDT | Special Weather Statement | JAX | Gilchrist | 52 min |
| Jun 8, 2:04 PM EDT | Special Weather Statement | JAX | Putnam | 41 min |
| Jun 8, 2:17 PM EDT | Special Weather Statement | JAX | Gilchrist | 43 min |
| Jun 8, 2:24 PM EDT | Special Weather Statement | JAX | Alachua | 51 min |
| Jun 8, 2:54 PM EDT | Special Weather Statement | JAX | Suwannee | 51 min |
| Jun 8, 2:58 PM EDT | Special Weather Statement | JAX | Flagler | 47 min |
| Jun 8, 3:02 PM EDT | Special Weather Statement | JAX | Suwannee | 43 min |
| Jun 8, 3:23 PM EDT | Severe Thunderstorm Warning | JAX | Hamilton, Suwannee | 15 min |
| Jun 8, 3:29 PM EDT | Special Weather Statement | JAX | Columbia | 46 min |
| Jun 8, 3:34 PM EDT | Special Weather Statement | JAX | Marion | 41 min |
| Jun 8, 3:48 PM EDT | Special Weather Statement | JAX | Nassau | 42 min |
| Jun 8, 4:05 PM EDT | Special Weather Statement | JAX | Flagler | 25 min |
| Jun 8, 4:27 PM EDT | Areal Flood Advisory | JAX | Columbia, Suwannee | 93 min |
| Jun 8, 4:40 PM EDT | Special Weather Statement | JAX | Duval | 35 min |
| Jun 8, 5:12 PM EDT | Special Weather Statement | JAX | Duval | 33 min |
| Jun 8, 5:34 PM EDT | Special Marine Warning | JAX | 30 min | |
| Jun 8, 5:43 PM EDT | Areal Flood Advisory | JAX | Baker, Clay, Duval, Nassau, Saint Johns | 2 hr |
| Jun 8, 5:50 PM EDT | Special Weather Statement | JAX | Duval | 40 min |
| Jun 8, 6:06 PM EDT | Areal Flood Warning | JAX | Clay, Duval | 114 min |
| Jun 8, 1:40 PM EDT | Areal Flood Advisory | JAX | Glynn | 2 hr |
| Jun 8, 3:09 PM EDT | Areal Flood Advisory | JAX | Camden | 96 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2018Every severe thunderstorm warning in 2018
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.