Alert archive / Georgia / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 113, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 27, 1994, 4:31 PM EDT for Bryan County, Chatham County, Georgia. It was in force for 44 min.
The area
The counties it named.
The facts
- Issued
- Jul 27, 1994, 4:31 PM EDT (20:31 UTC)
- Expired
- Jul 27, 1994, 5:15 PM EDT
- In force
- 44 min
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
Counties Bryan County, GA, Chatham County, GA
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 8.5 hours before the alert went out and 156 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
- 1571 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 557 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 153 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAV 272033 RRA SVRSAV GAC029-051-GAZ901-902-903-904-272115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE SAVANNAH GA 431 PM EDT WED JUL 27 1994 THE NATIONAL WEATHER SERVICE IN SAVANNAH HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 515 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...S... IN SOUTHEAST GEORGIA ...EASTERN BRYAN COUNTY...EASTERN CHATHAM COUNTY AND FOR MARINE INTERESTS ON THE COASTAL WATERS FROM ...THE SAVANNAH RIVER TO ST CATHERINES SOUND WEATHER SERVICE RADARS INDICATED A SEVERE THUNDERSTORM OVER EASTERN CHATHAM AND BRYAN COUNTIES IN SOUTHEAST GEORGIA. THE THUNDERSTORM WAS MOVING NORTHEAST AROUND 20 MILES AN HOUR. PERSONS IN SAVANNAH EAST OF ABERCORN TO THE ISLANDS OF SKIDAWAY...WILMINGTON AND TYBEE ARE THE MOST THREATENED AND SHOULD SEEK SAFE HARBOR IMMEDIATELY. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
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, Jul 27, 2:23 PM EDT, 2 hours 8 minutes before
FLZ020-021-022-023-024-025-029-030-031-032-033-035-036-037-501-
501-GAZ166-165-164-280630-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
223 PM EDT WED JUL 27 1994
AT 2:20 PM EDT THE NATIONAL WEATHER SERVICE OFFICE AT JACKSONVILLE
FLORIDA ISSUED A SPECIAL WEATHER ADVISORY FOR ALL OF NORTH FLORIDA AND
SOUTHERN GEORGIA...
...SEVERE WEATHER OUTLOOK FOR NORTH FLORIDA AND SOUTH GEORGIA...
AN UNUSUALLY DEEP LAYER OF WARM MOIST AIR AND A DEEP UPPER LEVEL TROUGH
SET THE STAGE FOR POTENTIALLY STRONG TO SEVERE THUNDERSTORMS FOR THE NEX36 TO 48 HOURS (WEDNESDAY TO FRIDAY PM).
WHILE DEVELOPMENT OF SQUALL LINES AND SEVERE THUNDERSTORMS ARE FAVORED
NORTH OF OUR AREA, THERE IS A SIGNIFICANT CHANCE OF SUCH STORMS LOCALLY.
AREA RESIDENTS ARE ADVISED TO KEEP ABREST OF THIS WEATHER SITUATION AS
IT DEVELOPS OVER THE NEXT 24 HOURS.Special weather statement, Jul 27, 2:26 PM EDT, 2 hours 5 minutes before
FLZ020-021-022-023-024-025-029-030-031-032-033-035-036-037-501-
501-GAZ166-165-164-280630-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
223 PM EDT WED JUL 27 1994
AT 2:20 PM EDT THE NATIONAL WEATHER SERVICE OFFICE AT JACKSONVILLE
FLORIDA ISSUED A SPECIAL WEATHER ADVISORY FOR ALL OF NORTH FLORIDA AND
SOUTHERN GEORGIA...
...SEVERE WEATHER OUTLOOK FOR NORTH FLORIDA AND SOUTH GEORGIA...
AN UNUSUALLY DEEP LAYER OF WARM MOIST AIR AND A DEEP UPPER LEVEL TROUGH
SET THE STAGE FOR POTENTIALLY STRONG TO SEVERE THUNDERSTORMS FOR THE NEX36 TO 48 HOURS (WEDNESDAY TO FRIDAY PM).
WHILE DEVELOPMENT OF SQUALL LINES AND SEVERE THUNDERSTORMS ARE FAVORED
NORTH OF OUR AREA, THERE IS A SIGNIFICANT CHANCE OF SUCH STORMS LOCALLY.
AREA RESIDENTS ARE ADVISED TO KEEP ABREST OF THIS WEATHER SITUATION AS
IT DEVELOPS OVER THE NEXT 24 HOURS.Special weather statement, Jul 27, 3:30 PM EDT, 1 hour 1 minute before
FLZ024-025-033-272030- SPECIAL WEATHER STATEMENT WEATHER SERVICE JACKSONVILLE FL 330 PM EDT WED JUL 27 1994 ...............AFTERNOON THUNDERSTORMS DEVELOPING FOR RUSH HOUR....... AFTERNOON THUNDERSTORMS ARE RAPIDLY DEVELOPING IN NORTHEAST FLORIDA THIS AFTERNOON JUST IN TIME FOR RUSH HOUR TRAFFIC IN ORANGE PARK AND JACKSONVILLE. THE THUNDERSTORMS ARE MOVING NORTHEAST AT 10 TO 15 MILES AN HOUR AND WILL MOVE THROUGH THE JACKSONVILLE AREA IN THE NEXT HOUR. AS IN THE LAST FEW DAYS THESE THUNDERSTORMS WILL BE ACCOMPANIED BY PERRIODS OF VERY HEAVY RAINFALL...FREQUENT LIGHTNNING AND GUSTY WINDS. MARINE INTERESTS ON THE ST. JOHNS RIVER AND IN THE ATLANTIC COASTAL WATERS SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS THESE THUNDERSTORMS APPROACH THE AREA. MOTORISTS SHOULD BE ALERT FOR WET ROADS AND POOR VISIBILITIES IN HEAVY RAINFALL AS THEY LEAVE WORK THIS AFTERNOON.
Special weather statement, Jul 27, 3:35 PM EDT, 56 minutes before
FLZ024-025-033-272030- SPECIAL WEATHER STATEMENT WEATHER SERVICE JACKSONVILLE FL 330 PM EDT WED JUL 27 1994 ...............AFTERNOON THUNDERSTORMS DEVELOPING FOR RUSH HOUR....... AFTERNOON THUNDERSTORMS ARE RAPIDLY DEVELOPING IN NORTHEAST FLORIDA THIS AFTERNOON JUST IN TIME FOR RUSH HOUR TRAFFIC IN ORANGE PARK AND JACKSONVILLE. THE THUNDERSTORMS ARE MOVING NORTHEAST AT 10 TO 15 MILES AN HOUR AND WILL MOVE THROUGH THE JACKSONVILLE AREA IN THE NEXT HOUR. AS IN THE LAST FEW DAYS THESE THUNDERSTORMS WILL BE ACCOMPANIED BY PERRIODS OF VERY HEAVY RAINFALL...FREQUENT LIGHTNNING AND GUSTY WINDS. MARINE INTERESTS ON THE ST. JOHNS RIVER AND IN THE ATLANTIC COASTAL WATERS SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS THESE THUNDERSTORMS APPROACH THE AREA. MOTORISTS SHOULD BE ALERT FOR WET ROADS AND POOR VISIBILITIES IN HEAVY RAINFALL AS THEY LEAVE WORK THIS AFTERNOON.
Nearby
Severe Thunderstorm Warnings in Georgia, 1994Every severe thunderstorm warning in 1994
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.