Alert archive / Florida / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 129, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 6, 2018, 4:01 PM EDT for Suwannee County, Florida. It was in force for 26 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
- Jul 6, 2018, 4:01 PM EDT (20:01 UTC)
- Expired
- Jul 6, 2018, 4:27 PM EDT
- In force
- 26 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Suwannee County, FL
The radar
The Moody AFB radar (KVAX), 77 km from the middle of the area, began a volume at 20:01 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, 8.0 hours before the alert went out and 128 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
- 198 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 914 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 1 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 Jul 6, 9:10 AM EDT, 6 hours 51 minutes earlier.
Area forecast discussion, Jul 6, 9:10 AM EDT, 6 hours 51 minutes before
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Special weather statement, Jul 6, 1:40 PM EDT, 2 hours 21 minutes before
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</html>Special weather statement, Jul 6, 1:47 PM EDT, 2 hours 14 minutes before
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</html>Special weather statement, Jul 6, 2:19 PM EDT, 1 hour 42 minutes before
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</html>Special weather statement, Jul 6, 2:39 PM EDT, 1 hour 22 minutes before
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</html>Special weather statement, Jul 6, 3:25 PM EDT, 36 minutes before
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</html>Special weather statement, Jul 6, 3:39 PM EDT, 22 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 |
|---|---|---|---|---|
| Jul 6, 12:22 PM EDT | Special Weather Statement | JAX | Nassau | 23 min |
| Jul 6, 12:37 PM EDT | Special Weather Statement | JAX | Duval | 23 min |
| Jul 6, 12:56 PM EDT | Areal Flood Advisory | JAX | Duval | 2 hr |
| Jul 6, 1:11 PM EDT | Special Weather Statement | JAX | Baker | 34 min |
| Jul 6, 1:22 PM EDT | Severe Thunderstorm Warning | JAX | Baker, Duval, Nassau | 25 min |
| Jul 6, 1:30 PM EDT | Special Weather Statement | JAX | Flagler | 30 min |
| Jul 6, 1:40 PM EDT | Special Weather Statement | JAX | Flagler | 20 min |
| Jul 6, 1:47 PM EDT | Special Weather Statement | JAX | Clay | 28 min |
| Jul 6, 1:49 PM EDT | Areal Flood Advisory | JAX | Flagler | 116 min |
| Jul 6, 2:19 PM EDT | Special Weather Statement | JAX | Flagler | 41 min |
| Jul 6, 2:39 PM EDT | Special Weather Statement | JAX | Baker | 51 min |
| Jul 6, 3:03 PM EDT | Areal Flood Advisory | JAX | Baker, Columbia, Hamilton | 87 min |
| Jul 6, 3:25 PM EDT | Special Weather Statement | JAX | Columbia | 50 min |
| Jul 6, 3:39 PM EDT | Special Weather Statement | JAX | Putnam | 51 min |
| Jul 6, 4:04 PM EDT | Special Weather Statement | JAX | Marion | 41 min |
| Jul 6, 4:15 PM EDT | Areal Flood Advisory | JAX | Columbia, Suwannee | 90 min |
| Jul 6, 4:25 PM EDT | Special Weather Statement | JAX | Suwannee | 50 min |
| Jul 6, 4:29 PM EDT | Special Weather Statement | JAX | Putnam | 46 min |
| Jul 6, 4:37 PM EDT | Areal Flood Advisory | JAX | Alachua, Marion, Putnam | 83 min |
| Jul 6, 4:52 PM EDT | Special Weather Statement | JAX | Suwannee | 38 min |
| Jul 6, 4:58 PM EDT | Special Weather Statement | JAX | Marion | 47 min |
| Jul 6, 5:02 PM EDT | Special Weather Statement | JAX | Gilchrist | 43 min |
| Jul 6, 5:18 PM EDT | Areal Flood Advisory | JAX | Marion | 87 min |
| Jul 6, 5:47 PM EDT | Special Weather Statement | JAX | Citrus | 43 min |
| Jul 6, 5:52 PM EDT | Special Weather Statement | JAX | Gilchrist | 38 min |
| Jul 6, 6:07 PM EDT | Areal Flood Advisory | JAX | Marion | 83 min |
| Jul 6, 6:18 PM EDT | Special Weather Statement | JAX | Alachua | 42 min |
| Jul 6, 6:26 PM EDT | Areal Flood Advisory | JAX | Alachua | 94 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.