Alert archive / North Carolina / Flash Flood Warnings in 1993
Flash Flood Warning 3, NWS Raleigh, NC
NWS Raleigh, NC issued this flash flood warning at Mar 4, 1993, 8:17 AM EST for Durham County, Orange County, Person County, North Carolina. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Mar 4, 1993, 8:17 AM EST (13:17 UTC)
- Expired
- Mar 4, 1993, 11:15 AM EST
- In force
- 3 hr
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
Counties Durham County, NC, Orange County, NC, Person County, NC
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 1.3 hours before the alert went out and 82 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 528 m above ground
- 0-6 km bulk shear
- 93 kt
- 0-1 km storm-relative helicity
- 259 m²/s²
- 0-3 km storm-relative helicity
- 277 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KRDU 041339 COR
FFWRDU
NCC063-069-077-135-145-181-185-041615-
BULLETIN
FLOOD WARNING CORRECTION...SHOULD READ FLOOD WARNING NOT FLASH FLOOD
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
817 AM EST THU MAR 4 1993
THE NATIONAL WEATHER SERVICE IN RALEIGH/DURHAM HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL 1115 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
IN NORTH CENTRAL NORTH CAROLINA
...DURHAM COUNTY...FRANKLIN COUNTY...GRANVILLE COUNTY
...ORANGE COUNTY...PERSON COUNTY...VANCE COUNTY...WARREN COUNTY
HEAVY RAINS HAVE FALLEN ACROSS THE REGION OVERNIGHT. ALTHOUGH RAINS ARE
ENDING SOME FLOODING OF SMALL STREAMS AND ROADWAYS WILL CONTINUE THIS
MORNING. AMOUNTS HAVE AVERAGED 2.5 TO 3.5 INCHES.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY. MOVE TO HIGHER GROUND.
CORRECTION...........THE BODY OF THE WARNING SHOULD SAY FLOOD
WARNING...NOT FLASH FLOOD WARNING.
JBPWhat 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.
In the hours before
Special weather statement, Mar 4, 5:28 AM EST, 2 hours 49 minutes before
NCZ003-004-005-014-041230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC 521 AM EST THU MAR 4 1993 WEATHER SERVICE RADAR AT RALEIGH-DURHAM INDICATED A DEVELOPING LINE OF THUNDERSTORMS EXTENDING FROM WESTERN HARNETT COUNTY NORTHWARD ACROSS CENTRAL LEE AND CHATHAM COUNTIES TO NORTHERN ORANGE. THE THUNDERSTORMS IN THIS LINE APPEAR TO BE MOVING NORTHEAST AROUND 30 MPH. STRONG LOW LEVEL WINDS WILL CAUSE RAPID MOVEMENT OF THESE THUNDERSTORMS. SOME BRIEF GUSTY WINDS IN EXCESS OF 35 MPH ARE POSSIBLE ACROSS NORTH-CENTRAL NORTH CAROLINA EARLY THIS MORNING. PERSONS ESPECIALLY ACROSS THE NORTHEAST PIEDMONT SHOULD BE ON THE ALERT FOR RAPID CHANGING CONDITIONS THIS MORNINGV. LOCALLY HEAVY RAINFALL WILL ALSO PRODUCE SOME FLOODING OF ROADWAYS. COMMUTERS SHOULD ALLOW EXTRA TIME THIS MORNING. ADDITIONAL STATEMENTS AND OR WARNINGS WILL BE ISSUED AS NEEDED. LBC
Special weather statement, Mar 4, 6:37 AM EST, 1 hour 40 minutes before
NCZ006-007-009-041300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 635 AM EST THU MAR 4 1993 ...HEAVY RAINS STILL SPREADING OVER NORTHWEST NORTH CAROLINA... PATCHES OF HEAVY RAIN CONTINUE TO DEVELOP OVER THE NORTHERN MOUNTAINS.. NORTHERN FOOTHILLS AND NORTHWEST PIEDMONT OF NORTH CAROLINA. OVER TWO INCHES OF RAIN HAVE FALLEN AT THE PIEDMONT TRIAD INTERNATIONAL AIRPORT SINCE NOON YESTERDAY AND MANY OTHER AREAS HAVE RECIEVED SIMILAR AMOUNTS. AT 630 PM RADAR SHOWED THE HEAVIEST RAINS OVER NORTHWEST NORTH CAROLINA BETWEEN HICKORY AND NORTH WILKESBORO. THE RAIN WAS MOVING NORTH NORTHEAST AT ABOUT 50 MPH. WITH THIS ADDITIONAL HEAVY RAIN THIS MORNING..WE MAY EXPERIENCE SOME MINOR FLOODING OF SMALL CREEKS AND STREAMS. WATER WAS ALSO PONDING ALONG SIDE ROADWAYS IN LOW LYING AREAS AND IN SPOTS WHERE THE DRAINAGE WAS POOR. PERSONS GETTING OUT AND TRALVELING THIS MORNING SHOULD USE CAUTION AND KEEP A LOOKOUT FOR WXATER LYING ON ROADWAYS. THE RAIN IS EXPECTED TO TAPER OFF AND END LATER THIS MORNING. RBN
Special weather statement, Mar 4, 6:46 AM EST, 1 hour 31 minutes before
NCZ003-004-005-041345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC 645 AM EST THU MAR 4 1993 HEAVY RAIN CONTINUES ACROSS MUCH OF THE NORTHEAST PIEDMONT AS WELL AS THE TRIANGLE AREA THIS MORNING. SOME FLOODING WAS BEEN REPORTED IN CHAPEL HILL AROUND 5AM THIS MORNING. HEAVY RAIN HAS PRODUCED SOME STREET FLOODING IN THE RALEIGH AREA AND CRABTREE CREEK IS APPROACHING FLOOD STAGE AT WAKE FOREST ROAD. COMMUTERS SHOULD BE ALERT FOR RISING WATERS IN LOW LYING AREAS. PONDING OF ROADWAYS WILL BE COMMONPLACE THROUGH THE PEAK TRAFFIC PERIOD. PERSONS NEAR LOW LYING AREAS THAT ARE PRONE TO RAPID FLOODING SHOULD REMAIN ALERT AND BE READY TO MOVE TO A PLACE OF SAFETY. | THE HEAVY RAINFALL IS EXPECTED TO GRADUALLY DIMINISH OVER THE NEXT COUPLE OF HOURS. HOWEVER...WITH THE SATURATED GROUNDS...RUNOFF WILL BE PROLONGED FOR SEVERAL HOURS THIS MORNING. LBC
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 4, 6:45 AM EST | Flash Flood Warning | RAH | Wake | 4 hr |
| Mar 4, 8:17 AM EST | Flash Flood Warning | RAH | Franklin, Vance, Warren | 3 hr |
| Mar 4, 8:17 AM EST | Flash Flood Warning | RAH | Granville | 3 hr |
Nearby
Flash Flood Warnings in North Carolina, 1993Every flash flood warning in 1993
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.