Alert archive / Florida / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 25, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 13, 1986, 5:55 PM EDT for Alachua County, Bradford County, Florida. It was in force for 60 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 13, 1986, 5:55 PM EDT (21:55 UTC)
- Expired
- Jun 13, 1986, 6:55 PM EDT
- In force
- 60 min
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
Counties Alachua County, FL, Bradford County, FL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 13, 6:00 PM EDT | Hail 1.5 | Alachua, FL |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Jacksonville, FL (KAYS), launched 12:00Z, 9.9 hours before the alert went out and 94 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
- 618 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 949 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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.
In the hours before
Special weather statement, Jun 13, 2:30 PM EDT, 3 hours 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 230 PM EDT FRI JUN 13 1986 AT 230 PM A VERY STRONG THUNDERSTORM OVER JACKSONVILLE'S WESTSIDE WAS PRODUCING HEAVY RAINFALL AND PEA SIZE HAIL NEAR WILSON AND 103RD STREETS. THIS AND OTHER STRONG THUNDERSTORMS OVER NORTHEAST FLORIDA ARE MOVING SLOWLY TO THE EAST. THESE SLOW MOVING THUNDERSTORMS ARE PRODUCING LOCALLY HEAVY RAINFALL.. STRONG GUSTY WINDS..FREQUENT LIGHTNING STRIKES..AND SMALL HAIL. THESE STORMS MAY ALSO PRODUCE LOCALIZED STREET FLOODING. THUNDERSTORMS WILL PERSIST UNTIL AFTER SUNSET. IF YOU ARE NEAR A THUNDERSTORM BE AWARE OF THE POTENTIAL FOR HAZARDOUS CONDITIONS. BOATERS SHOULD USE CAUTION AS THESE STORMS MOVE OFFSHORE DURING THE NEXT ONE TO THREE HOURS.
Special weather statement, Jun 13, 5:32 PM EDT, 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 530 PM EDT FRI JUN 13 1986 AT 525 PM A VERY STRONG THUNDERSTORM OVER ALACHUA IN ALACHUA COUNTY WAS INDICATED ON NATIONAL WEATHER SERVICE RADAR. OTHER STRONG THUNDER STORMS WERE SHOWN IN AN AREA FROM LAKE CITY TO GAINESVILLE AND ARE MOVING SLOWLY TO THE EAST. THESE SLOW MOVING THUNDERSTORMS ARE PRODUCING LOCALLY HEAVY RAINFALL.. STRONG GUSTY WINDS..FREQUENT LIGHTNING STRIKES..AND SMALL HAIL. THESE STORMS MAY ALSO PRODUCE LOCALIZED STREET FLOODING. THUNDERSTORMS WILL PERSIST UNTIL AFTER SUNSET. IF YOU ARE NEAR A THUNDERSTORM BE AWARE OF THE POTENTIAL FOR HAZARDOUS CONDITIONS.
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 13, 6:04 PM EDT | Tornado Warning | JAX | Alachua | 71 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1986Every severe thunderstorm warning in 1986
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.