Alert archive / South Carolina / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 8, NWS Charleston, SC
NWS Charleston, SC issued this severe thunderstorm warning at Jul 27, 1987, 7:10 PM EDT for Berkeley County, South Carolina. It was in force for 65 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
- Jul 27, 1987, 7:10 PM EDT (23:10 UTC)
- Expired
- Jul 27, 1987, 8:15 PM EDT
- In force
- 65 min
- Issued by
- NWS Charleston, SC
- Area
- Whole counties
County Berkeley County, SC
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 |
|---|---|---|---|
| Jul 27, 7:20 PM EDT | Hail 0.75 | Berkeley, SC |
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
Charleston AFB, SC (KCHS), launched 12:00Z, 11.2 hours before the alert went out and 33 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
- 1451 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 1004 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 50 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 272310
SVRCHS
SCC015-280015-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
710 PM EDT MON JUL 27 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 815 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH CAROLINA
...BERKELEY
AT 705PM EDT RADAR INDICATED A SEVERE THUNDERSTORM 13 MILES NORTH OF
CHARLESTON MOVING TOWARD THE SOUTH AT 20 MILES AN HOUR.
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
Local storm report, Jul 27, 4:43 PM EDT, 2 hours 27 minutes before
STORM REPORT NATIONAL WEATHER SERVICE CHARLESTON, SC 441 PM EDT MON JUL 27 1987 1612 EDT...LARGE TREES BLOWN DOWN IN WILLIAMSBURG COUNTY SOUTH CAROLINA NEAR HEMINGWAY...REPORTED BY SPOTTER. RAO
Special weather statement, Jul 27, 4:53 PM EDT, 2 hours 17 minutes before
SPECIAL WEATHER STATEMENT RADAR SUMMARY NATIONAL WEATHER SERVICE CHARLESTON, SC 441 PM EDT MON JUL 27 1987 ..A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 10 PM EDT.. FOR A LARGE PART OF SOUTH CAROLINA INCLUDING ALL OF THE COASTAL COUNTIES WITH THE EXCEPTION OF JASPER AND BEAUFORT COUNTIES... AT 4.30 PM...A LARGE AREA OF INTENSE THUNDERSTORMS AND SHOWERS WERE OVER THE LOWER PIEMONT...MIDLANDS AND NORTHERN COASTAL COUNTIES OF SOUTH CAROLINA. A CLUSTER OF INTENSE THUNDERTORMS WERE LOCATED BETWEEN SUMTER AND ABOUT 45 MILES NORTHWEST OF CHARLESTON. ANOTHER VERY HEAVY THUNDERSTORM WAS LOCATED NEAR GEORGETOWN. THESE STORMS WILL LIKELY PRODUCE LOCALLY HEAVY RAIN...DANGEROUS LIGHNING.Y..SMALL HAIL...GUSTY WINDS...SOME FLOODING AS THEY MOVE SOUTHEASTWARD ACROSS THE MIDANDS. MOVEMENT OF ALL RAIN WAS TOWARDS THE SOUTHEAST 20 MILES AN HOUR. ZEHR
Special weather statement, Jul 27, 5:49 PM EDT, 1 hour 21 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMMARY NATIONAL WEATHER SERVICE CHARLESTON, SC 540 PM EDT MON JUL 27 1987 ..A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 10 PM EDT.. FOR A LARGE PART OF SOUTH CAROLINA INCLUDING ALL OF THE COASTAL COUNTIES WITH THE EXCEPTION OF JASPER AND BEAUFORT COUNTIES... AT 5.30 PM...A LARGE AREA OF RAIN WITH THUNDERSTORMS...SOME INTENSE ...WERE OVER THE EASTERN PORTION OF SOUTH CAROLINA. THE MOST INTENSE THUNDERSTORMS WERE LOCATED 15 MILES WEST OF COLUMBIA...ANOTHER NEAR AUGUSTA GEORGIA AND ANOTHER NEAR ALLENDALE. THESE STORMS WILL LIKELY PRODUCE LOCALLY HEAVY RAIN...DANGEROUS LIGHNING...SMALL HAIL...GUSTY WINDS...SOME FLOODING AS THEY MOVE SOUTHEASTWARD ACROSS THE MIDANDS INTO EASTERN GEORGIA. MOVEMENT OF ALL RAIN WAS TOWARDS THE SOUTHEAST 10 MILES AN HOUR. ZEHR
Special weather statement, Jul 27, 6:40 PM EDT, 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHARLESTON, SC 640 PM EDT MON JUL 27 1987 ..A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 10 PM EDT.. FOR A LARGE PART OF SOUTH CAROLINA INCLUDING ALL OF THE COASTAL COUNTIES WITH THE EXCEPTION OF JASPER AND BEAUFORT COUNTIES... AT 6.30 PM...A LARGE AREA OF RAIN WITH THUNDERSTORMS...SOME INTENSE ...WERE OVER THE EASTERN PORTION OF SOUTH CAROLINA. THE MOST INTENSE THUNDERSTORMS WERE LOCATED NEAR WAGENER...ANOTHER 5 MILES WEST OF ALLENDALE AND ANOTHER 5 MILES SOUTH OF FAIRFAX. THESE STORMS WILL LIKELY PRODUCE LOCALLY HEAVY RAIN...DANGEROUS LIGHNING...SMALL HAIL...GUSTY WINDS...SOME FLOODING AS THEY MOVE SOUTHEASTWARD ACROSS THE MIDANDS. MOVEMENT OF ALL RAIN WAS TOWARDS THE SOUTHEAST 10 MILES AN HOUR. ZEHR
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 3:45 PM EDT | Severe Thunderstorm Warning | CHS | Williamsburg | 60 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 1987Every severe thunderstorm warning in 1987
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.