Alert archive / North Carolina / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 50, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at May 1, 1989, 4:35 PM EDT for Wake County, North Carolina. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- May 1, 1989, 4:35 PM EDT (20:35 UTC)
- Expired
- May 1, 1989, 5:30 PM EDT
- In force
- 55 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Wake County, NC
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.6 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
- 20 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 520 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 114 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 severe thunderstorm 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, May 1, 3:38 PM EDT, 57 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC 335 PM EDT MON MAY 1 1989 ...FLOOD WATCH IN EFFECT FOR THE SANDHILLS...NORTHERN AND CENTRAL COASTAL PLAINS...AND THE NORTHEAST PIEDMONT... ...LINE OF STRONG THUNDERSTORMS MOVING THROUGH THE SANDHILLS... AT 330 PM EDT...RADAR SHOWED A LINE OF STRONG THUNDERSTORMS WITH VERY HEAVY RAIN EXTENDING ACROSS THE SANDHILLS INTO THE SOUTHERN AND CENTRAL COASTAL PLAIN. THE LINE EXTENDED FROM NEAR MT. OLIVE IN WAYNE COUNTY SOUTHWEST ACROSS...SAMPSON...CUMBERLAND...HOKE AND SCOTLAND COUNTIES TO HAMLET IN RICHMOND COUNTY. MOVEMENT WAS NORTHEAST AT 30 MPH. THESE STORMS WILL CONTINUE TO AFFECT HOKE...CUMBERLAND...SAMPSON... AND WAYNE COUNTIES THROUGH 4 PM...AND WILL LIKELY MOVE INTO HARNETT AND JOHNSTON COUNTIES BY 430 PM EDT. THESE STORMS WILL PRODUCE STRONG GUSTY WINDS...LOCALLY HEAVY DOWNPOURS.. DANGEROUS LIGHTNING...AND POSSIBLY HAIL. TAKE SHELTER IF THREATENING WEATHER BAPPROACHES. SOME FLOODING OF STREETS AND ROADS IS POSSIBLE FROM THE HEAVY RAIN...AND MOTORISTS SHOULD BE ALERT FOR THIS. LISTEN TO RADIO...TELEVISION...OR NOAA WEATHER RADIO FOR ADDITIONAL STATEMENTS AND POSSIBLY WATCHES OR WARNINGS. JBM
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 8:30 PM EDT | Flash Flood Warning | RAH | Wake | 2 hr |
| May 1, 6:30 PM EDT | Tornado Warning | RAH | Scotland | 45 min |
| May 1, 6:39 PM EDT | Tornado Warning | RAH | Hoke, Moore | 66 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 1989Every severe thunderstorm warning in 1989
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.