Alert archive / North Carolina / Flash Flood Warnings in 2002
Flash Flood Warning 44, NWS Raleigh, NC
NWS Raleigh, NC issued this flash flood warning at Sep 18, 2002, 4:30 PM EDT for Forsyth County, North Carolina. It was in force for 2 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 18, 2002, 4:30 PM EDT (20:30 UTC)
- Expired
- Sep 18, 2002, 6:30 PM EDT
- In force
- 2 hr
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Forsyth County, NC
The radar
The Roanoke radar (KFCX), 99 km from the middle of the area, began a volume at 20:31 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.5 hours before the alert went out and 32 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
- 1538 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 537 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS52 KRAH 182030 FFWRAH NCC067-182230- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE RALEIGH NC 426 PM EDT WED SEP 18 2002 THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A * FLASH FLOOD WARNING FOR... FORSYTH COUNTY IN CENTRAL NORTH CAROLINA * UNTIL 630 PM EDT * AT 426 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN OVER THE FORSYTH COUNTY...ESPECIALLY TO THE NORTH AND WEST OF WINSTON-SALEM. * THUNDERSTORMS ARE CONTINUOUSLY REDEVELOPING OVER THE WARNED AREA... RESULTING IN EXCESSIVE RAINFALL. SMALL CREEKS AND STREAMS WILL RAPIDLY FLOOD...POSSIBLY OVERRUNNING ROADS AND FLOODING NEARBY LOW AREAS. ABSOLUTELY DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO HIGHER GROUND. $$ LAT...LON 3624 8005 3606 8005 3606 8046 3624 8042 28
1 follow-up statement
000 WGUS72 KRAH 182107 FFSRAH NCC067-182230- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE RALEIGH NC 459 PM EDT WED SEP 18 2002 ...A FLASH FLOOD WARNING CONTINUES IN EFFECT FOR FORSYTH COUNTY INCLUDING WINSTON-SALEM UNTIL 630 PM THIS EVENING. FLASH FLOODING HAS HAS ALREADY BEEN REPORTED ON SEVERAL HIGHWAYS... MOST NOTEABLY HIGHWAYS 52 AND 65 NORTHWEST OF WINSTON SALEM. MILL CREEK AND MUDDY CREEK ARE LIKELY TO EXPERIENCE FLASH FLOODING. PEOPLE ALONG THESE CREEKS SHOULD TAKE ACTION AND SEEK HIGHER GROUND. STORMS WILL CONTINUE TO PRODUCE VERY HEAVY RAIN DURING THE COMMUTER RUSH HOUR IN AND AROUND WINSTON SALEM. HEAVY RAINS MAY FLOOD INTERSECTIONS...DITCHES AND UNDERPASSES. DO NOT ATTEMPT TO DRIVE THROUGH AREAS WHERE WATER COVERS THE ROADWAY. MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. $$ 28
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 18, 12:16 PM EDT | Flash Flood Warning | RAH | Cumberland | 59 min |
| Sep 18, 12:29 PM EDT | Flash Flood Warning | RAH | Chatham | 61 min |
| Sep 18, 2:42 PM EDT | Flash Flood Warning | RAH | Randolph | 108 min |
| Sep 18, 2:55 PM EDT | Flash Flood Warning | RAH | Guilford | 110 min |
| Sep 18, 3:04 PM EDT | Flash Flood Warning | RAH | Randolph | 116 min |
| Sep 18, 4:52 PM EDT | Flash Flood Warning | RAH | Randolph | 98 min |
| Sep 18, 5:21 PM EDT | Flash Flood Warning | RAH | Davidson | 99 min |
| Sep 18, 5:37 PM EDT | Flash Flood Warning | RAH | Montgomery | 83 min |
| Sep 18, 5:51 PM EDT | Flash Flood Warning | RAH | Stanly | 84 min |
| Sep 18, 6:26 PM EDT | Flash Flood Warning | RAH | Forsyth | 94 min |
Nearby
Flash Flood Warnings in North Carolina, 2002Every flash flood warning in 2002
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.