Alert archive / South Carolina / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 119, NWS Charleston, SC

July 20, 2010Hampton County, Jasper County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Jul 20, 2010, 5:43 PM EDT for Hampton County, Jasper County, South Carolina. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 20, 2010, 5:43 PM EDT (21:43 UTC)
Expired: Jul 20, 2010, 6:30 PM EDT
In force: 47 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon

Counties Hampton County, SC, Jasper County, SC

The radar

The Charleston,SC radar (KCLX), 7 km from the middle of the area, began a volume at 21:45 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

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.

NWS Charleston, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 20, 5:39 PM EDT, 4 minutes earlier.

Area forecast discussion, Jul 20, 5:39 PM EDT, 4 minutes before

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Hazardous weather outlook, Jul 20, 5:40 PM EDT, 3 minutes before

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In the hours before

Local storm report, Jul 20, 4:08 PM EDT, 1 hour 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
408 PM EDT TUE JUL 20 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0317 PM     TSTM WND DMG     LENA                    32.75N 81.22W
07/20/2010                   HAMPTON            SC   LAW ENFORCEMENT

            ONE TREE DOWN ON GRASS HILL ROAD. TIME ESTIMATED BASED ON
            RADAR.

&&

RPA

Special weather statement, Jul 20, 4:24 PM EDT, 1 hour 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
424 PM EDT TUE JUL 20 2010

SCZ043-049-202130-
COASTAL COLLETON-INLAND COLLETON-
424 PM EDT TUE JUL 20 2010

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF COLLETON COUNTY
THROUGH 530 PM EDT...

AT 420 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...NEAR HENDERSONVILLE...MOVING EAST AT 10 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
ASHEPOO...GREEN POND...HENDERSONVILLE...JACKSONBORO...RITTER AND
WHITE HALL...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
DIME SIZE HAIL...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS THUNDERSTORM IS CAPABLE OF PRODUCING VERY HEAVY RAIN...WHICH MAY
FLOOD DITCHES AND LOW-LYING AREAS. REDUCE VEHICLE SPEED TO LOWER THE
RISK OF HYDROPLANING. DO NOT DRIVE INTO PLACES WHERE WATER COVERS THE
ROAD. SEEK AN ALTERNATE ROUTE.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
BE READY TO TAKE IMMEDIATE ACTION IN CASE A SEVERE THUNDERSTORM
WARNING IS ISSUED FOR YOUR LOCATION.

&&

LAT...LON 3280 8042 3275 8044 3273 8044 3271 8041
      3267 8041 3261 8045 3271 8080 3291 8072
      3287 8039 3283 8039
TIME...MOT...LOC 2024Z 280DEG 10KT 3278 8070

Special weather statement, Jul 20, 4:41 PM EDT, 1 hour 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
441 PM EDT TUE JUL 20 2010

GAZ087-088-100-101-202130-
BULLOCH-EFFINGHAM-JENKINS-SCREVEN-
441 PM EDT TUE JUL 20 2010

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF EFFINGHAM...
BULLOCH...JENKINS AND SCREVEN COUNTIES THROUGH 530 PM EDT...

AT 439 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS...ALONG A LINE EXTENDING FROM WOODCLIFF TO
EMIT...MOVING EAST AT 10 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
ALTMAN...BROOKLET...CAPTOLO...DENMARK...DOVER...EGYPT...GEORGIA
SOUTHERN...HUNTERS...KILDARE...LEEFIELD...MIDDLEGROUND...NEWINGTON...
OLIVER...ROCKY FORD...STATESBORO...STILSON...SYLVANIA AND
WOODCLIFF...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
DIME SIZE HAIL...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. IF
OUTDOORS...STAY AWAY FROM ISOLATED TALL OBJECTS. IF INDOORS...STAY
AWAY FROM WINDOWS AND DOORS. AVOID USING PLUMBING AND ELECTRICAL
APPLIANCES UNLESS IT IS AN EMERGENCY.

THIS THUNDERSTORM IS CAPABLE OF PRODUCING VERY HEAVY RAIN...WHICH MAY
FLOOD DITCHES AND LOW-LYING AREAS. REDUCE VEHICLE SPEED TO LOWER THE
RISK OF HYDROPLANING. DO NOT DRIVE INTO PLACES WHERE WATER COVERS THE
ROAD. SEEK AN ALTERNATE ROUTE.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
BE READY TO TAKE IMMEDIATE ACTION IN CASE A SEVERE THUNDERSTORM
WARNING IS ISSUED FOR YOUR LOCATION.

&&

LAT...LON 3270 8185 3287 8178 3288 8177 3288 8150
      3228 8143 3227 8183 3264 8186 3265 8185
      3266 8186 3269 8187
TIME...MOT...LOC 2042Z 269DEG 10KT 3279 8177 3236 8173

Local storm report, Jul 20, 5:01 PM EDT, 42 minutes before

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Local storm report, Jul 20, 5:03 PM EDT, 40 minutes before

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Special weather statement, Jul 20, 5:36 PM EDT, 7 minutes before

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The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 20, 3:34 AM EDT	Heat Advisory	CHS	Bulloch, Candler, Effingham, Evans, Jenkins, Long and 2 more	14 hr
Jul 20, 4:41 PM EDT	Special Weather Statement	CHS	Bulloch, Screven	49 min
Jul 20, 4:49 PM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Effingham, Screven	56 min
Jul 20, 5:50 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Bulloch, Effingham	55 min
Jul 20, 6:20 PM EDT	Severe Thunderstorm Warning	CHS	Effingham	55 min
Jul 20, 6:53 PM EDT	Special Weather Statement	CHS	Effingham	67 min
Jul 20, 7:10 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Bulloch, Effingham, Evans, Liberty, Tattnall	65 min
Jul 20, 1:46 PM EDT	Special Weather Statement	CHS	Allendale	44 min
Jul 20, 2:58 PM EDT	Special Weather Statement	CHS	Hampton	47 min
Jul 20, 3:07 PM EDT	Severe Thunderstorm Warning	CHS	Allendale, Colleton, Hampton, Jasper	38 min
Jul 20, 4:05 PM EDT	Special Weather Statement	CHS	Jasper	40 min
Jul 20, 4:24 PM EDT	Special Weather Statement	CHS	Colleton	66 min
Jul 20, 4:26 PM EDT	Areal Flood Advisory	CHS	Berkeley, Charleston, Dorchester	64 min
Jul 20, 4:32 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Colleton, Hampton, Jasper	58 min
Jul 20, 5:36 PM EDT	Special Weather Statement	CHS	Jasper	54 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2010 Every severe thunderstorm warning in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.