Alert archive / North Carolina / Flash Flood Warnings in 1992
Flash Flood Warning 5, NWS Raleigh, NC
NWS Raleigh, NC issued this flash flood warning at Aug 12, 1992, 5:11 PM EDT for Wake County, North Carolina. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Aug 12, 1992, 5:11 PM EDT (21:11 UTC)
- Expired
- Aug 12, 1992, 7:15 PM EDT
- In force
- 2 hr
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Wake County, NC
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.2 hours before the alert went out and 117 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
- 367 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 1101 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 108 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KRDU 122114 FFWRDU NCC183-122315- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC 511 PM EDT WED AUG 12 1992 THE NATIONAL WEATHER SERVICE IN RALEIGH/DURHAM HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 715 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL NORTH CAROLINA ...WAKE COUNTY AT 510 PM THUNDERSTORMS WITH HEAVY RAIN WERE OCCURRING ACROSS WAKE COUNTY. WITH SEVERAL THUNDERSTORMS MOVING ACROSS THE COUNTY ADDITIONAL HEAVY RAIN IS LIKELY. SOME FLOODING OF STREAMS AND CREEKS IS LIKELY. FLOODED ROADWAYS WILL ALSO OCCUR. 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.
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.
In the hours before
Special weather statement, Aug 12, 2:04 PM EDT, 3 hours 7 minutes before
NCZALL-122000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC 201 PM EDT WED AUG 12 1992 AT 2PM A LINE OF THUNDERSTORMS FROM CENTRAL MOORE INTO WESTERN HARNETT COUNTY. OTHER STRONG THUNDERSTORMS WERE WIDELY SCATTERED OVER CUMBERLAND AND HOKE COUNTIES. SMALL HAIL WAS REPORTED IN SKYLINE NEAR SOUTHERN PINES. GUSTY WINDS WERE ALSO REPORTED WITH THIS THUNDERSTORM. THE THUNDERSTORMS WERE MOVING SLOWLY TOWARD THE EAST. ~ ADDITIONAL THUNDERSTORMS WILL CONTINUE TO DEVELOP ACROSS MOST OF CENTRAL AND EASTERN NORTH CAROLINA. PERSONS SHOULD BE ON THE ALERT FOR RAPIDLY CHANGING CONDITIONS. LBC
Special weather statement, Aug 12, 3:36 PM EDT, 1 hour 35 minutes before
NCZ006-122100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 335 PM EDT WED AUG 12 1992 ...STRONG THUNDERSTORMS ARE DEVELOPING IN THE SOUTHERN COUNTIES OF THE NORTHWEST PIEDMONT OF NORTH CAROLINA... AT 325 PM EDT WEATHER SETVICE RADAR INDICATED STRONG THUNDERSTORMS 5 MILES SOUTHWEST OF ASHEBORO IN RANDOLPH COUNTY AND ALONG THE SOUTHERN BORDER OF ROWAN COUNTY. THESE THUNDERSTORMS WERE MOVING SLOWLY TO THE NORTHEAST. THESE STORMS DEVELOPED QUICKLY AND HAVE THE POTENTIAL TO PRODUCE STRONG GUSTY WINDS...HEAVY DOWNPOURS...AND DANGEROUS LIGHTENING. IF YOU ARE CAUGHT IN THE PATH OF THESE RAPIDLY DEVELOPING STORMS.. SEEK SHELTER IN A SAFE PLACE. WHEN THE STORMS HAVE PASSED RELAY ANY STORM REPORTS TO LOCAL LAW ENFORCEMENT OR THE NEAREST NATIONAL WEATHER SERVICE OFFICE. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL NEWS MEDIA FOR FURTHER STATEMENTS OR WARNINGS. ELJ
Special weather statement, Aug 12, 3:43 PM EDT, 1 hour 28 minutes before
NCZ006-122100- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE GREENSBORO NC 335 PM EDT WED AUG 12 1992 ...STRONG THUNDERSTORMS ARE DEVELOPING IN THE SOUTHERN COUNTIES OF THE NORTHWEST PIEDMONT OF NORTH CAROLINA... AT 325 PM EDT WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS 5 MILES SOUTHWEST OF ASHEBORO IN RANDOLPH COUNTY AND ALONG THE SOUTHERN BORDER OF ROWAN COUNTY. THESE THUNDERSTORMS WERE MOVING SLOWLY TO THE NORTHEAST. THESE STORMS DEVELOPED QUICKLY AND HAVE THE POTENTIAL TO PRODUCE STRONG GUSTY WINDS...HEAVY DOWNPOURS...AND DANGEROUS LIGHTENING. IF YOU ARE CAUGHT IN THE PATH OF THESE RAPIDLY DEVELOPING STORMS.. SEEK SHELTER IN A SAFE PLACE. WHEN THE STORMS HAVE PASSED RELAY ANY STORM REPORTS TO LOCAL LAW ENFORCEMENT OR THE NEAREST NATIONAL WEATHER SERVICE OFFICE. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL NEWS MEDIA FOR FURTHER STATEMENTS OR WARNINGS. ELJ
Local storm report, Aug 12, 3:49 PM EDT, 1 hour 22 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
348 PM EDT WED AUG 12 1992
TIME EVENT
345 PM EDT IN WILSON COUNTY DIME SIZE HAIL...SEVERAL POWER LINES AND
TREES DOWN.
JBPLocal storm report, Aug 12, 4:07 PM EDT, 1 hour 4 minutes before
STORM REPORT NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC 406 PM EDT WED AUG 12 1992 TIME EVENT 3 54 PM EDT AT FAYETTEVILLE AIRPORT...WIND GUST 58 KNOTS. KK
Local storm report, Aug 12, 4:38 PM EDT, 33 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
436 PM EDT WED AUG 12 1992
TIME EVENT
435 PM EDT IN CHATHAM COUNTY AT HARPERS CROSSROADS...DIME SIZE
HAIL...STRONG WINDS.
JBPThe office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 10:52 PM EDT | Severe Thunderstorm Warning | RAH | Person | 68 min |
| Aug 11, 11:32 PM EDT | Severe Thunderstorm Warning | RAH | Orange | 43 min |
| Aug 12, 3:33 PM EDT | Severe Thunderstorm Warning | RAH | Wilson | 42 min |
| Aug 12, 3:52 PM EDT | Severe Thunderstorm Warning | RAH | Pitt | 68 min |
| Aug 12, 3:56 PM EDT | Severe Thunderstorm Warning | RAH | Cumberland | 64 min |
| Aug 12, 4:23 PM EDT | Severe Thunderstorm Warning | RAH | Chatham | 67 min |
| Aug 12, 4:37 PM EDT | Tornado Warning | RAH | Wake | 68 min |
| Aug 12, 7:21 PM EDT | Flash Flood Warning | RAH | Wake | 2 hr |
Nearby
Flash Flood Warnings in North Carolina, 1992Every flash flood warning in 1992
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.