Alert archive / North Carolina / Flash Flood Warnings in 1999
Flash Flood Warning 13, NWS Wilmington, NC
NWS Wilmington, NC issued this flash flood warning at Aug 30, 1999, 3:31 AM EDT for Pender 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
- Aug 30, 1999, 3:31 AM EDT (07:31 UTC)
- Expired
- Aug 30, 1999, 6:00 AM EDT
- In force
- 2 hr
- Issued by
- NWS Wilmington, NC
- Area
- Whole counties
County Pender County, NC
The radar
The Wilmington radar (KLTX), 77 km from the middle of the area, began a volume at 07:32 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 00:00Z, 7.5 hours before the alert went out and 97 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
- 1325 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 720 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.3
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Wilmington, NC wrote its last area forecast discussion before this flash flood warning went out at Aug 30, 3:05 AM EDT, 26 minutes earlier.
Area forecast discussion, Aug 30, 3:05 AM EDT, 26 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC 305 AM EDT MON AUG 30 1999 APPEARS THAT DENNIS IS MAKING THE MUCH ANTICIPATED TURN TO THE NORTHEAST. THE SYSTEM IS GETTING STEERED BY AN IMPRESSIVE SHORTWAVE MOVING INTO THE NE US. THE UPPER TROUGH IS SHOWING SIGNS OF LIFTING OUT AS THE STRONGEST WINDS ARE NOW ON THE EAST SIDE. THIS SUPPORTS THE MODEL TRENDS OF BUILDING AN UPPER RIDGE OVER DENNIS BY TUE AND SLOWING IT'S MOVEMENT OFF THE NC COAST. THIS COULD PROLONG THE COASTAL FLOODING/EROSION ALONG THE OUTER BANKS...EVEN WITH THE STORM WELL OFF THE COAST. NOW THAT IT APPEARS THAT THE CENTER OF DENNIS WILL BE WELL OFFSHORE...THINK HURRICANE FORCE WINDS WILL BE CONFINED TO GUSTS ALONG THE COAST DURING THE NEXT 12-18 HRS. FURTHER INLAND... SUSTAINED TROPICAL FORCE WINDS WILL BE HARD TO COME BY AND WILL LIKELY OCCUR IN GUSTS AS WELL. (THANKS TO AKQ FOR COORD ON THIS). WILL NUDGE WIND SPEEDS DOWN A BIT ALL ZONES. RAIN SHOULD RAPIDLY END MOST LOCATIONS BY 00Z...EXCEPT FOR OUTER BANKS. LOW STALLED OFF THE COAST AND MEAN RH NEAR 70% WILL KEEP CLOUDS/WIND IN THE FORECAST FOR TUE. CWF: WILL TWEAK AFT HURRICANE HOTLINE BUT PLAN ON KEEPING HEADLINES AS IS. .MHX...HURRICANE WARN OREGON INLET S INCLUDING PAM SND. ...TROP STORM WARN N OF OREGON INLET AND ALBEMARLE SND. ...HIGH WND WARN LATE TNT THRU MON DUPLIN/JONES/LENOIR/PITT/GREENE/ MARTIN. ELARDO
The office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 2:02 AM EDT | Flash Flood Warning | ILM | Brunswick, New Hanover | 3 hr |
| Aug 30, 3:31 AM EDT | Flash Flood Warning | ILM | Pender | 89 min |
| Aug 30, 4:57 AM EDT | Flash Flood Warning | ILM | Brunswick, New Hanover, Pender | 3 hr |
Nearby
Flash 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.