Alert archive / North Carolina / Flash Flood Warnings in 2002
Flash Flood Warning 47, NWS Raleigh, NC
NWS Raleigh, NC issued this flash flood warning at Sep 18, 2002, 5:37 PM EDT for Montgomery County, North Carolina. It was in force for 83 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
- Sep 18, 2002, 5:37 PM EDT (21:37 UTC)
- Expired
- Sep 18, 2002, 7:00 PM EDT
- In force
- 83 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Montgomery County, NC
The radar
The Raleigh/Durham radar (KRAX), 133 km from the middle of the area, began a volume at 21:38 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, 9.6 hours before the alert went out and 83 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 182137
FFWRAH
NCC123-182300-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
534 PM EDT WED SEP 18 2002
THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHWEST MONTGOMERY COUNTY OF CENTRAL NORTH CAROLINA
* UNTIL 700 PM EDT
* AT 534 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY
HEAVY RAIN OVER NORTHWEST MONTGOMERY COUNTY EAST OF BADIN LAKE
INCLUDING THE AREA ALONG HIGHWAY 109.
* THUNDERSTORMS ARE CONTINUOUSLY REDEVELOPING OVER THE WARNED AREA...
RESULTING IN EXCESSIVE RAINFALL. RADAR INDICATED OVER 2 INCHES OF
RAINFALL SINCE 330 PM THIS AFTERNOON.
SMALL CREEKS AND STREAMS WILL RAPIDLY FLOOD...POSSIBLY WASHING OUT
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 3551 7990 3539 7989 3534 8006 3548 8017
3551 8015
28The 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, 4:30 PM EDT | Flash Flood Warning | RAH | Forsyth | 2 hr |
| 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, 5:51 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.