Alert archive / South Carolina / Flash Flood Warnings in 1999
Flash Flood Warning 21, NWS Wilmington, NC
NWS Wilmington, NC issued this flash flood warning at Sep 15, 1999, 7:45 PM EDT for Columbus County, Robeson County, North Carolina; Dillon County, Horry County, Marion County, South Carolina. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 15, 1999, 7:45 PM EDT (23:45 UTC)
- Expired
- Sep 16, 1999, 2:00 AM EDT
- In force
- 6 hr
- Issued by
- NWS Wilmington, NC
- Area
- Whole counties
Counties Columbus County, NC, Robeson County, NC, Dillon County, SC, Horry County, SC, Marion County, SC
The radar
The Wilmington radar (KLTX), 68 km from the middle of the area, began a volume at 23:46 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.
The nearest sounding before it
Newport, NC (KMHX), launched 12:00Z, 11.8 hours before the alert went out and 211 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
- 392 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 956 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 266 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 5.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KILM 152346 FFWILM NCC017-019-047-129-141-155-SCC033-043-051-067-160600- BULLETIN - EAS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE WILMINGTON NC 745 PM EDT WED SEP 15 1999 THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A * FLOOD WARNING FOR... BLADEN COUNTY IN SOUTHEASTERN NORTH CAROLINA BRUNSWICK COUNTY IN SOUTHEASTERN NORTH CAROLINA COLUMBUS COUNTY IN SOUTHEASTERN NORTH CAROLINA DILLON COUNTY IN NORTHEASTERN SOUTH CAROLINA GEORGETOWN COUNTY IN NORTHEASTERN SOUTH CAROLINA HORRY COUNTY IN NORTHEASTERN SOUTH CAROLINA MARION COUNTY IN NORTHEASTERN SOUTH CAROLINA NEW HANOVER COUNTY IN SOUTHEASTERN NORTH CAROLINA PENDER COUNTY IN SOUTHEASTERN NORTH CAROLINA ROBESON COUNTY IN SOUTHEASTERN NORTH CAROLINA * UNTIL 200 AM EDT * AT 735 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A BAND OF HEAVY RAIN MOVING WEST OVER BLADEN...COLUMBUS AND HORRY COUNTIES. THE HEAVY RAINS ARE EXPECTED TO SPREAD INTO ROBESON...DILLON AND MARION COUNTIES BY 10 PM AND FLOODING CONDITIONS ARE EXPECTED TO DEVELOP. ADDITIONAL HEAVY RAINS WILL MOVE ONSHORE OVER THE COASTAL COUNTIES AHEAD OF HURRICANE FLOYD AND AGGRAVATE EXISTING FLOODING. * RADAR ESTIMATES INDICATE THAT 3 TO 6 INCHES OF RAIN HAS ALREADY FALLEN OVER MUCH OF THE AREA WITH LOCAL AMOUNTS OF 12 TO 15 INCHES MAINLY ACROSS THE COASTAL COUNTIES. WIDESPREAD FLOODING HAS BEEN REPORTED ON HIGHWAYS AND SECONDARY ROADS IN MUCH OF THE WARNED AREA THIS EVENING. FLOODING CONDITIONS ARE EXPECTED TO PERSIST INTO EARLY THURSDAY MORNING. DO NOT DRIVE THROUGH FLOODED AREAS. SHALLOW...SWIFTLY FLOWING WATER CAN WASH A CAR FROM A ROADWAY. ALSO...THE ROADBED MAY NOT BE INTACT UNDER THE WATER. IF YOUR VEHICLE STRALLS...ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. PNEUHERZ &
The office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 15, 4:27 AM EDT | Flash Flood Warning | ILM | New Hanover | 3 hr |
| Sep 15, 7:25 AM EDT | Tornado Warning | ILM | Pender | 20 min |
| Sep 15, 8:23 AM EDT | Flash Flood Warning | ILM | Brunswick, New Hanover, Pender | 6 hr |
| Sep 15, 10:16 AM EDT | Tornado Warning | ILM | Brunswick, New Hanover | 29 min |
| Sep 15, 2:35 PM EDT | Flash Flood Warning | ILM | Brunswick, New Hanover, Pender | 5 hr |
| Sep 15, 2:35 PM EDT | Flash Flood Warning | ILM | Bladen, Columbus | 5 hr |
| Sep 15, 2:42 PM EDT | Tornado Warning | ILM | Brunswick, New Hanover | 33 min |
| Sep 15, 3:07 PM EDT | Tornado Warning | ILM | New Hanover | 33 min |
| Sep 15, 3:23 PM EDT | Severe Thunderstorm Warning | ILM | Brunswick, Columbus | 22 min |
| Sep 15, 3:23 PM EDT | Tornado Warning | ILM | Brunswick | 22 min |
| Sep 15, 7:45 PM EDT | Flash Flood Warning | ILM | Bladen, Brunswick, New Hanover, Pender | 6 hr |
| Sep 15, 2:35 PM EDT | Flash Flood Warning | ILM | Georgetown, Horry | 5 hr |
| Sep 15, 7:45 PM EDT | Flash Flood Warning | ILM | Georgetown | 6 hr |
Nearby
Flash Flood Warnings in South Carolina, 1999Flash Flood Warnings in North Carolina, 1999Every flash flood warning in 1999
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.