Alert archive / Florida / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 21, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Apr 15, 1993, 1:46 PM EDT for Baker County, Columbia County, Florida. It was in force for 44 min.
The area
The counties it named.
The facts
- Issued
- Apr 15, 1993, 1:46 PM EDT (17:46 UTC)
- Expired
- Apr 15, 1993, 2:30 PM EDT
- In force
- 44 min
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
Counties Baker County, FL, Columbia County, FL
The nearest sounding before it
Jacksonville, FL (KAYS), launched 12:00Z, 5.8 hours before the alert went out and 76 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1302 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 175 m²/s²
- 0-3 km storm-relative helicity
- 251 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KJAX 151822 RRA SVRJAX FLC003-023-151830- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSONVILLE FL 146 PM EDT THU APR 15 1993 THE NATIONAL WEATHER SERVICE IN JACKSONVILLE FL HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 230 PM EDT IN NORTHEAST FLORIDA ...BAKER COUNTY...NORTHEASTERN COLUMBIA COUNTY AT 1 55PM EDT NATIONAL WEATHER SERVICE RADARS INDICATE A SEVERE THUNDERSTORM LOCATED IN NORTHEAST COLUMBIA COUNTY AND MOVING EAST AT SPEEDS OF UP TO 40 MPH. THIS THUNDERSTORM WILL BE MOVING INTO COMMUNITY OF TAYLOR IN BAKER COUNTY WITHIN THE NEXT 15 TO 30 MINUTES. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
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, Apr 15, 1:30 PM EDT, 16 minutes before
FLZ008-009-GAZ501-FLZ501-152030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 130 PM EDT THU APR 15 1993 ...A HIGH WIND ADVISORY THIS AFTERNOON... ...A SMALL CRAFT ADVISORY IS ALSO IN EFFECT ... NATIONAL WEATHER SERVICE RADARS INDICATE A LINE OF THUNDERSTORMS EXTENDING FROM WESTERN GEORGIA SOUTHWARD THROUGH VALDOSTA AND INTO FLORIDA AND THE GULF OF MEXICO CONTAINS STRONG GUSTY WINDS ... LIGHTNING STRIKES AND HEAVY RAIN IS MOVING EAST TOWARD THE ATLANTIC AT SPEEDS OF UP TO 35 MPH AND 40 MPH. STRONG GUSTY WINDS OF 35 AND 45 MPH HAVE BEEN ACCOMPANYING THIS LINE ACROSS GEORGIA AND THE FLORIDA PANHANDLE. LOCALLY HEAVY RAINS ALSO HAVE BEEN REPORTED. THE SQUALL LINE SHOULD MOVE INTO THE CITIES OF LAKE CITY..AND GAINESVILLE WITH THE NEXT 1 TO 2 HOURS AND INTO JACKSONVILLE/ORANGE PARK IN THE NEXT 2 TO 3 HOURS. LIGHTNING DETECTING EQUIPMENT INDICATED CLOUD TO GROUND LIGHTNING STRIKES IN THE VICINITY OF INTERSTATES 10 AND 75 NEAR LAKE CITY FL. HOWEVER, THE MORE NUMEROUS LIGHTNING STRIKES ARE IN THE UPPER GULF OF MEXICO OFFSHORE DIXIE/LEVY COUNTY FL. THIS CLUSTER OF THUNDERSTORMS PRODUCING NUMEROUS LIGHTNING STRIKES WILL BE MOVING ONSHORE WITHIN THE NEXT 1 TO 3 HOURS. REMEMBER...MOST EXPERTS AGREE THE SINGLE MOST IMPORTANT THING YOU CAN DO DURING A THUNDERSTORM IS TO GET INDOORS. IF YOU DO NOT HAVE TIME TO REACH A SAFE BUILDING OR CAR...AVOID OPEN FIELDS SUCH AS GOLF COURSES..BASEBALL FIELDS..BEACHES OR FISHING FROM A SMALL BOAT OR PIERS.
Special weather statement, Apr 15, 1:30 PM EDT, 16 minutes before
FLZ008-009-GAZ501-FLZ501-152030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 130 PM EDT THU APR 15 1993 ...A HIGH WIND ADVISORY THIS AFTERNOON... ...A SMALL CRAFT ADVISORY IS ALSO IN EFFECT ... NATIONAL WEATHER SERVICE RADARS INDICATE A LINE OF THUNDERSTORMS EXTENDING FROM WESTERN GEORGIA SOUTHWARD THROUGH VALDOSTA AND INTO FLORIDA AND THE GULF OF MEXICO CONTAINS STRONG GUSTY WINDS ... LIGHTNING STRIKES AND HEAVY RAIN IS MOVING EAST TOWARD THE ATLANTIC AT SPEEDS OF UP TO 35 MPH AND 40 MPH. STRONG GUSTY WINDS OF 35 AND 45 MPH HAVE BEEN ACCOMPANYING THIS LINE ACROSS GEORGIA AND THE FLORIDA PANHANDLE. LOCALLY HEAVY RAINS ALSO HAVE BEEN REPORTED. THE SQUALL LINE SHOULD MOVE INTO THE CITIES OF LAKE CITY..AND GAINESVILLE WITH THE NEXT 1 TO 2 HOURS AND INTO JACKSONVILLE/ORANGE PARK IN THE NEXT 2 TO 3 HOURS. LIGHTNING DETECTING EQUIPMENT INDICATED CLOUD TO GROUND LIGHTNING STRIKES IN THE VICINITY OF INTERSTATES 10 AND 75 NEAR LAKE CITY FL. HOWEVER, THE MORE NUMEROUS LIGHTNING STRIKES ARE IN THE UPPER GULF OF MEXICO OFFSHORE DIXIE/LEVY COUNTY FL. THIS CLUSTER OF THUNDERSTORMS PRODUCING NUMEROUS LIGHTNING STRIKES WILL BE MOVING ONSHORE WITHIN THE NEXT 1 TO 3 HOURS. REMEMBER...MOST EXPERTS AGREE THE SINGLE MOST IMPORTANT THING YOU CAN DO DURING A THUNDERSTORM IS TO GET INDOORS. IF YOU DO NOT HAVE TIME TO REACH A SAFE BUILDING OR CAR...AVOID OPEN FIELDS SUCH AS GOLF COURSES..BASEBALL FIELDS..BEACHES OR FISHING FROM A SMALL BOAT OR PIERS.
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 2:21 PM EDT | Severe Thunderstorm Warning | JAX | Alachua, Bradford, Union | 69 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1993Every severe thunderstorm warning in 1993
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.