Severe Thunderstorm Warning 90, NWS Charleston, SC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
215 PM EDT TUE AUG 19 1997

FNTL BNDRY IS SITTING OVER EXTRM SRN SC ATTM AND WL BEGIN TO MV N TNGT
INTO WED. TEMPS AND HEAT INDICES ARE DOWN FM YESTERDAY. NOT MUCH IN THE
WAY OF DYNAMICS GOING ON THIS AFT/EVE...HOWEVER SCT TSRA HAVE POPPED UP
FM OGB AREA THRU BERKELEY CTY AND OFF CST. WL NEED TO CARRY AT LEAST A
20 POP FOR EVE PD BASED ON CUR ACTIVITY. FOR WED...NEXT S/W WL BEGIN TO
MV N OF FA AND HGTS DO BEGIN TO FALL LATER IN THE DAY AND ESP AT NIGHT.
AS FNTL BNDRY LIFTS N...LIGHT S-SE WINDS WL VEER TO SW AND PRS GRAD WL
INC IN RESPONSE TO S/W AND APPROACH OF H85 JET. THINK CHC POP IS IN
ORDER FOR THE AFT AND PROBABLY WED NIGHT AS BEST DYNAMICS MV OVER AREA.
CD FNT SHUD PUSH OFF THE CST BY MIDDAY THU. MAY STILL NEED TO CARRY
SLGT CHC POP THU. FINALLY SOME COOLER AND LESS HUMID AIR SHUD ARRIVE
FOR FRI AND SAT. ON CWF...WINDS SHUD REMAIN LIGHT INTO WED...THEN INC
WED AFT/NIGHT BUT REMAIN BLO SCA. WL NEED TO CARRY SCF FOR THIS EVE AS
WINDS ARE ONSHORE AND PREDICTED TIDE AT CHS IS 6.9.

CHS APT     75/91/75/91  1332
DOWNTOWN    78/88/78/91
INLND CTYS  74/92/74/90
SAV APT     75/93/75/92  1232

        S COAST /CHS-NBC/
...SHALLOW COASTAL FLOODING AROUND HIGH TIDE THIS EVENING...
.TONIGHT...A 20 PERCENT CHANCE OF AN EVENING THUNDERSTORM...OTHERWISE
PARTLY CLOUDY. LOW MID 70S INLAND TO UPPER 70S COAST. LIGHT WIND.
.WEDNESDAY...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF AN AFTERNOON
THUNDERSTORM. HIGH UPPER 80S COAST TO LOWER 90S INLAND. SOUTH WIND
INCREASING TO 10 TO 15 MPH.
.WEDNESDAY NIGHT...A 30 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS.
LOW MIDDLE TO UPPER 70S.
.THURSDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF A THUNDERSTORM.
HIGH AROUND 90.

CWF
...SHALLOW COASTAL FLOODING AROUND HIGH TIDE THIS EVENING...
.TONIGHT...SE WIND 10 KT. SEAS 2 FT. WIDELY SCATTERED TSTMS.
.WED...S WIND INCREASING TO 15 KT. SEAS 3 FT.
WIDELY SCATTERED TSTMS.
.WED NIGHT...SW WIND 15 KT. SEAS 4 FT. SCATTERED SHOWERS AND TSTMS.
.THU...SW WIND 15 KT BECOMING W. SEAS 4 FT SUBSIDING TO 3 FT IN THE
AFTERNOON. SCATTERED SHOWERS AND TSTMS.

TJR

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON, SC
530 PM EDT TUE AUG 18 1997

ALONG WITH THE WEEKLY EAS/TONE ALERT TEST TO BE CONDUCTED TOMORROW
WEDNESDAY AUGUST 20TH, THE NATIONAL WEATHER SERVICE IN CHARLESTON
WILL PERFORM FOUR ADDITIONAL TESTS. THESE TESTS WILL BE FOR EAS CODE
RECEIVERS ONLY - THE 1050 MHZ TONE ALARM WILL NOT BE SOUNDED. THE ONLY
COUNTY CODE TO BE USED FOR THE ADDITIONAL FOUR TESTS WILL BE THE
PRACTICE CODE 999999. THE TONE ALARM WILL NOT BE USED EXCEPT FOR THE
ROUTINE WEEKLY TEST.

THE WEEKLY EAS/TONE TEST WILL BE DONE AT 1115AM WITH THE FOUR EAS CODE
ONLY TESTS TO FOLLOW EACH FIVE MINUTES THROUGH 1135AM. ALL FIVE TESTS
AS ALWAYS ARE SUBJECT TO FAIR WEXATHER IN THE AREA AT THE TIME OF THE
TESTS. WE APOLGIZE TO OUR USERS FOR ANY DISRUPTION TO ROUTINE SERVICE
THESE TESTS WILL CAUSE. THE FOUR ADDITIONAL TESTS SHOULD NOT ALARM EAS
SYSTEMS SINCE THEY ARE USING ONLY THE PRACTICE COUNTY CODE.

DG