Alert archive / South Carolina / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 67, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Jun 30, 2004, 1:42 PM EDT for Clarendon County, South Carolina. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 30, 2004, 1:42 PM EDT (17:42 UTC)
- Expired
- Jun 30, 2004, 2:30 PM EDT
- In force
- 48 min
- Issued by
- NWS Columbia, SC
- Area
- Counties, with a storm outline in the text
County Clarendon County, SC
The radar
The Columbia radar (KCAE), 89 km from the middle of the area, began a volume at 17:45 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 5.7 hours before the alert went out and 75 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
- 2262 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 799 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
407 WUUS52 KCAE 301742 SVRCAE SCC027-301830- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE COLUMBIA SC 140 PM EDT WED JUN 30 2004 THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CLARENDON COUNTY IN CENTRAL SOUTH CAROLINA * UNTIL 230 PM EDT * AT 140 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS ABOUT 5 MILES SOUTHEAST OF SUMMERTON...ALONG LAKE MARION NEAR TAWCAW CREEK. THIS STORM WAS NEARLY STATIONARY. THIS STORM WILL ALSO PRODUCE VERY HEAVY RAIN. A FLASH FLOOD WARNING REMAINS IN EFFECT FOR CLARENDON COUNTY. KEEP CHILDREN AWAY FROM STORM DRAINS. REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY SHERIFF...OR CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1... 800...7 7 5...7 1 9 9. LAT...LON 3354 8040 3344 8032 3353 8013 3359 8024 $$
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 Columbia, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 30, 10:48 AM EDT, 2 hours 54 minutes earlier.
Area forecast discussion, Jun 30, 10:48 AM EDT, 2 hours 54 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE COLUMBIA SC 1048 AM EDT WED JUN 30 2004 .UPDATE... NUMEROUS SHOWERS AND A FEW THUNDERSTORMS SPREADING EAST INTO MIDLANDS FROM NORTH GEORGIA/UPSTATE. SURFACE DATA EQUIVALENT POTENTIAL TEMPERATURE PLOT INDICATES OLD FRONTAL BOUNDARY ACROSS AREA. EXPECT WIDESPREAD SHOWERS REST OF DAY WITH THUNDERSTORMS...WITH LOCAL HEAVY RAIN AMOUNTS DUE TO TROPICAL AIRMASS/PRECIP WATER AROUND 2.00 INCHES. DEWPOINTS IN THE LOW TO MID 70S FROM AGS TO CAE. AIRMASS MODERATELY UNSTABLE...SURFACE BASED LI AROUND -7 EAST OF CAE. KINEMATIC FIELDS LOOK WEAK...HOWEVER 500MB WINDS A LITTLE STRONGER TO THE NORTH OF CAE. MAY SEE TRAINING THIS AFTERNOON...WILL ISSUE SPS FOR LOCALLY HEAVY RAIN AND POTENTIAL FOR SMALL STREAM AND URBAN FLOODING. WILL RAISE POPS TO CATEGORICAL CENTRAL AND WESTERN ZONES. LOWER TEMPS ONE CATEGORY. && .PREV DISCUSSION... WIDELY SCATTERED TSRA HAVE FORMED PAST FEW HOURS SOUTHEAST OF CAE. WILL WAIT TO RELEASE TIME FOR THE POPS EARLY THIS AM. MODEL GUIDANCE CONTINUES WITH LIKELY POPS TDA THRU THU AS WEAK SHORT WAVES MOVE ACROSS THE AREA. WEAK...DIFFUSE FRONTAL BOUNDRY IN THE AREA AT THIS TIME EXPECTED MOVE SLOWLY NORTHWARD AND DISSIPATE LATE TNGT. DEEP LAYER RH CONTINUES HIGH WITH PH20 ABOVE 1.5 INCHES. THREAT OF SEVERE WEATHER APPEARS LOW...BUT WITH HIGH PH20 A FEW OF THE STRONGER STORMS COULD PRODUCE RAINFALL AMOUNTS NEAR 2 INCHES. ONLY MINOR CHANGES TO CURRENT MAX/MIN/POPS. NO CHANGES TO EXTENDED FORECAST. && .CAE WATCHES/WARNINGS/ADVISORIES... SC...NONE. GA...NONE. && AWP
Hazardous weather outlook, Jun 30, 5:21 AM EDT, 8 hours 21 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE COLUMBIA SC 521 AM EDT WED JUN 30 2004 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-300920- AIKEN SC-BAMBERG SC-BARNWELL SC-BURKE GA-CALHOUN SC-CHESTERFIELD SC- CLARENDON SC-COLUMBIA GA-EDGEFIELD SC-FAIRFIELD SC-KERSHAW SC- LANCASTER SC-LEE SC-LEXINGTON SC-LINCOLN GA-MCCORMICK SC-MCDUFFIE GA- NEWBERRY SC-ORANGEBURG SC-RICHLAND SC-RICHMOND GA-SALUDA SC- SUMTER SC- 521 AM EDT WED JUN 30 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MIDLANDS OF SOUTH CAROLINA AND THE CENTRAL SAVANNAH RIVER AREA OF GEORGIA. .DAY ONE... A STATIONARY FRONT ACROSS THE AREA IN ADDITION TO AN UPPER LEVEL DISTURBANCE WILL TRIGGER SHOWERS AND THUNDERSTORMS TODAY. SOME STORMS MAY PRODUCE VERY HEAVY RAINFALL IN THE AMOUNT OF 1 TO 3 INCHES IN A SHORT PERIOD OF TIME. DUE TO RECENT RAINS AND SATURATED SOIL, THE SLOW MOVING STORMS MAY CAUSE FLOODING IN SOME AREAS. FLOOD WARNINGS OR ADVISORIES MAY BE REQUIRED. WINDS TO 40 MPH MAY ACCOMPANY SOME OF THE STRONGER STORMS WHICH MAY REQUIRE SPECIAL WEATHER STATEMENTS INDICATING THE WEATHER THREAT. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED TODAY.
In the hours before
Special weather statement, Jun 30, 11:09 AM EDT, 2 hours 33 minutes before
SCZ015-016-018-020>022-025>031-035>038-041-GAZ040-063>065- 077-302109- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA SC 1109 AM EDT WED JUN 30 2004 THE SPECIAL WEATHER STATEMENT PERTAINS TO THE FOLLOWING 18 COUNTIES IN SOUTH CAROLINA: AIKEN... BAMBERG... BARNWELL... CALHOUN... CLARENDON... CHESTERFIELD... EDGEFIELD... FAIRFIELD... KERSHAW... LANCASTER... LEE... LEXINGTON... MCCORMICK... NEWBERRY... ORANGEBURG... RICHLAND... SALUDA... SUMTER... THE SPECIAL WEATHER STATEMENT PERTAINS TO THE FOLLOWING 5 COUNTIES IN GEORGIA: BURKE... COLUMBIA... LINCOLN... MCDUFFIE... RICHMOND... ...POTENTIAL FOR URBAN AND SMALL STREAM FLOODING THIS AFTERNOON... ...NUMEROUS SHOWERS AND THUNDERSTORMS DEVELOPING ACROSS THE AREA... WIDESPREAD SHOWERS AND THUNDERSTORMS WILL MOVE FROM NORTH GEORGIA ACROSS THE MIDLANDS AND CENTRAL SAVANNAH RIVER AREA THIS AFTERNOON. THE AIRMASS IS VERY MOIST AND UNSTABLE. DUE TO THE TROPICAL AIRMASS ACROSS SOUTH CAROLINA AND SLOW MOVING THUNDERSTORMS...THERE IS POTENTIAL FOR URBAN AND SMALL STREAM FLOODING. A FEW THUNDERSTORMS WILL PRODUCE LOCALLY HEAVY RAIN....2 TO 4 INCHES IS POSSIBLE. IN ADDITION A FEW STORMS MAY PRODUCE SMALL HAIL AND GUSTY WINDS TO 45 MPH. THE NATIONAL WEATHER SERVICE WILL MONITOR THE POTENTIAL FOR FLASH FLOODING. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST INFORMATION ON THIS DEVELOPING SITUATION. AWP
Local storm report, Jun 30, 11:22 AM EDT, 2 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1122 AM EDT WED JUN 30 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
1115 AM TSTM WND DMG 5 SE EDGEFIELD 33.74N 81.87W
06/30/2004 EDGEFIELD SC LAW ENFORCEMENT
TREES DOWN ON HIGHWAY 23 NEAR THE MIDDLE SCHOOL. REPORTS
OF SMALL HAIL WITH THIS STORM ALSO.
&&
MCSpecial weather statement, Jun 30, 11:38 AM EDT, 2 hours 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA SC 1138 AM EDT WED JUN 30 2004 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-302137- ...SEVERE WEATHER OUTLOOK... ...THREAT OF ISOLATED SEVERE THUNDERSTORMS THIS AFTERNOON... ...POTENTIAL FOR URBAN AND SMALL STREAM FLOODING THIS AFTERNOON... ...NUMEROUS SHOWERS AND THUNDERSTORMS DEVELOPING ACROSS THE AREA... WIDESPREAD SHOWERS AND THUNDERSTORMS WILL MOVE FROM NORTH GEORGIA ACROSS THE MIDLANDS AND CENTRAL SAVANNAH RIVER AREA THIS AFTERNOON. THE AIRMASS IS VERY MOIST AND UNSTABLE. DUE TO THE TROPICAL AIRMASS ACROSS SOUTH CAROLINA AND SLOW MOVING THUNDERSTORMS...THERE IS POTENTIAL FOR URBAN AND SMALL STREAM FLOODING. A FEW THUNDERSTORMS WILL PRODUCE LOCALLY HEAVY RAIN....2 TO 4 INCHES IS POSSIBLE. IN ADDITION A FEW STORMS MAY BECOME SEVERE WITH DAMAGING WINDS AROUND 60 MPH. SMALL HAIL IS ALSO POSSIBLE. THE NATIONAL WEATHER SERVICE WILL MONITOR THE POTENTIAL FOR FLASH FLOODING AND SEVERE THUNDERSTORMS. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST INFORMATION ON THIS DEVELOPING SITUATION.
Local storm report, Jun 30, 1:32 PM EDT, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
132 PM EDT WED JUN 30 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0107 PM TSTM WND DMG PINEWOOD 33.74N 80.46W
06/30/2004 SUMTER SC UTILITY COMPANY
POWER COMPANY REPORTS TREES, TELEPHONE POLES AND
POWERLINES DOWN VICINITY PINEWOOD
0107 PM TSTM WND DMG PAXVILLE 33.74N 80.36W
06/30/2004 CLARENDON SC UTILITY COMPANY
POWER COMPANY REPORTS TREES, TELEPHONE POLES AND
POWERLINS DOWN VICINITY PAXVILLE
&&
JLKLocal storm report, Jun 30, 1:42 PM EDT, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
142 PM EDT WED JUN 30 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0115 PM FLASH FLOOD PAXVILLE 33.74N 80.36W
06/30/2004 CLARENDON SC EMERGENCY MNGR
CLARENDON COUNTY EMS REPORTS FLOODING OF STREAMS...ROADS
AND LOW AREAS OF PAXVILLE
&&
JLKThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 12:11 PM EDT | Severe Thunderstorm Warning | CAE | Orangeburg | 49 min |
| Jun 30, 12:17 PM EDT | Severe Thunderstorm Warning | CAE | Lexington | 58 min |
| Jun 30, 12:43 PM EDT | Flash Flood Warning | CAE | Clarendon | 3 hr |
| Jun 30, 1:01 PM EDT | Severe Thunderstorm Warning | CAE | Sumter | 59 min |
| Jun 30, 7:28 PM EDT | Flash Flood Warning | CAE | Chesterfield | 2 hr |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2004Every severe thunderstorm warning in 2004
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; radar from the NEXRAD Level II archive.