Alert archive / South Carolina / Tornado Warnings in 1989
Tornado Warning 1, NWS Charleston, SC
NWS Charleston, SC issued this tornado warning at Jul 23, 1989, 11:44 AM EDT for Charleston County, South Carolina. It was in force for 46 min.
The area
The counties it named.
The facts
- Issued
- Jul 23, 1989, 11:44 AM EDT (15:44 UTC)
- Expired
- Jul 23, 1989, 12:30 PM EDT
- In force
- 46 min
- Issued by
- NWS Charleston, SC
- Area
- Whole counties
County Charleston County, SC
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 3.7 hours before the alert went out and 18 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
- 1889 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 615 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KCHS 231544
TORCHS
SCC019-231630-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
1144 AM EDT SUN JUL 23 1989
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1230 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH CAROLINA
...CHARLESTON
AT 11.35 AM EDT THE CHARLESTON CONTROL TOWER AT CHARLESTON
INTERNATIONAL AIRPORT REPORTED A POSSIBLE TORNADO 4 MILES SOUTHWEST OF
CHARLESTON AIRPORT MOVING TOWARD THE NORTH AT 15 TO 20 MILES AN HOUR.What forecasters said that day
The local office's own words before this tornado 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 23, 7:33 AM EDT, 4 hours 11 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE CHARLESTON, SC 727 AM EDT SUN JUL 23 1989 THUNDERSTORMS WITH VERY HEAVY RAINS WERE FROM SOUTH OF SAVANNAH TO HARDEEVILLE. OTHER THUNDERSTORMS WERE DEVLOPING ON THE WESTERN EDGE OF JASPER AND HAMPTON COUNTIES. A SMALL CLUSER OF THUNDERSTORMS WAS LOCATED JUST NORTH OF EDISTO BEACH. THESE THUNDERSTORMS WERE MOVING TO THE NORTH-NORTHWEST AT 20 MILES AN HOUR AND WILL CAUSE SOME FLOODING IN PLACES WITH POOR DRAINAGE. VERY POOR VISIBILITY WILL OCCUR ALONG I95 NEAR THE GEORGIA - SOUTH CAROLINA BORDER ALONG WITH PONDING OF WATER ON THE HIWAY. SIMPSON
Special weather statement, Jul 23, 8:45 AM EDT, 2 hours 59 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE CHARLESTON, SC 840 AM EDT SUN JUL 23 1989 ...THUNDERSTORMS WITH HEAVY RAIN OVER SOUTHERN COASTAL SECTIONS... AT 8.30 AM...A THUNDERSTORM WITH VERY HEAVY RAIN WAS LOCATED OVER THE SOUTHERN COASTAL SECTION OF SOUTH CAROLINA...NEAR BEAUFORT. THIS STORM IS MOVING NORTHWARD AND WILL CAUSE LOCALLY HEAVY DOWNPOURS...GUSTY WINDS...AND CLOUD TO GROUND LIGHTNING. SOME FLOODING IS LIKELY IN THOSE AREAS WITH POOR DRAINAGE. MOTORISTS IN THIS AREA SHOULD EXERCISE CAUTION AND ALLOW EXTRA TIME FOR TRAVEL. OTHER SHOWERS AND THUNDERSTORMS WERE ALONG THE SAVANNAH RIVER...NEAR ALLENDALE. MOVEMENT OF ALL RAIN WAS TOWARDS THE NORTH AT 20 MILES AN HOUR. HSA
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 12:43 PM EDT | Tornado Warning | CHS | Charleston | 47 min |
Nearby
Tornado Warnings in South Carolina, 1989Every tornado warning in 1989Tornadoes in 1989
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.