Alert archive / North Carolina / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 69, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at May 7, 1998, 4:57 PM EDT for Person County, North Carolina. It was in force for 33 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 7, 1998, 4:57 PM EDT (20:57 UTC)
- Expired
- May 7, 1998, 5:30 PM EDT
- In force
- 33 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Person County, NC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 7, 5:10 PM EDT | Hail 1.75 | Hyco, NC | Golfball size hail fell on the south end of Hyco Lake in northwest Person county. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.0 hours before the alert went out and 90 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
- 49 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 523 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
304 WUUS1 KRDU 072058 RRA SVRRDU NCC145-072130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RALEIGH NC 457 PM EDT THU MAY 7 1998 THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN PERSON COUNTY * UNTIL 530 PM EDT * AT 455 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR LEASBURG... MOVING NORTHEAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... HYCO LAKE CONCORD CEFFO WOODSDALE BETHEL HILL DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS RAN
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 7, 11:00 AM EDT, 5 hours 57 minutes before
NCZ007>011-021>028-038>043-073>078-083>086-088>089-081100- SEVERE WEATHER OUTLOOK FOR CENTRAL NORTH CAROLINA NATIONAL WEATHER SERVICE RALEIGH NC 11 AM EDT THU MAY 7 1998 ...SLIGHT RISK OF SEVERE WEATHER FROM THUNDERSTORMS MAINLY LATE TODAY AND TONIGHT... (THE SEVERE WEATHER OUTLOOK FOR CENTRAL NORTH CAROLINA APPLIES ONLY TO THE COUNTIES LISTED AT THE END OF TEXT.) THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS MAINLY LATE TODAY AND TONIGHT ACROSS CENTRAL NORTH CAROLINA. THE MAIN THREAT IS FROM LARGE HAIL AND TO SOME EXTENT DAMAGING DOWNBURST WINDS. AN APPROACHING WARM FRONT FROM THE SOUTH...WARM HUMID AIR FLOWING NORTH FROM THE GULF OF MEXICO...AND A STRONG JET STREAM IN THE UPPER ATMOSPHERE COULD STRENGTHEN THUNDERSTORMS TO SEVERE INTENSITY LATE TODAY AND TONIGHT ALTHOUGH SPOTTER REPORTS MAY BE PROMPTED AT ALMOST ANY TIME TODAY... ACTIVATION OF THE SPOTTER NETWORK WOULD MORE LIKELY BE NEEDED AFTER 5 PM INTO THE EARLY NIGHTTIME HOURS. STAY TUNED TO NOAA WEATHER RADIO FOR ADDITIONAL STATEMENTS OR POSSIBLE WATCHES AND WARNINGS. RLH ********************************************************************* ALAMANCE ANSON CHATHAM CUMBERLAND DAVIDSON DURHAM EDGECOMBE FORSYTH FRANKLIN GRANVILLE GUILFORD HALIFAX HARNETT HOKE JOHNSTON LEE MONTGOMERY MOORE NASH ORANGE PERSON RANDOLPH RICHMOND SAMPSON SCOTLAND STANLY VANCE WAKE WARREN WAYNE WILSON
Special weather statement, May 7, 11:00 AM EDT, 5 hours 57 minutes before
NCZ007>011-021>028-038>043-073>078-083>086-088>089-081100- SEVERE WEATHER OUTLOOK FOR CENTRAL NORTH CAROLINA NATIONAL WEATHER SERVICE RALEIGH NC 11 AM EDT THU MAY 7 1998 ...SLIGHT RISK OF SEVERE WEATHER FROM THUNDERSTORMS MAINLY LATE TODAY AND TONIGHT... (THE SEVERE WEATHER OUTLOOK FOR CENTRAL NORTH CAROLINA APPLIES ONLY TO THE COUNTIES LISTED AT THE END OF TEXT.) THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS MAINLY LATE TODAY AND TONIGHT ACROSS CENTRAL NORTH CAROLINA. THE MAIN THREAT IS FROM LARGE HAIL AND TO SOME EXTENT DAMAGING DOWNBURST WINDS. AN APPROACHING WARM FRONT FROM THE SOUTH...WARM HUMID AIR FLOWING NORTH FROM THE GULF OF MEXICO...AND A STRONG JET STREAM IN THE UPPER ATMOSPHERE COULD STRENGTHEN THUNDERSTORMS TO SEVERE INTENSITY LATE TODAY AND TONIGHT ALTHOUGH SPOTTER REPORTS MAY BE PROMPTED AT ALMOST ANY TIME TODAY... ACTIVATION OF THE SPOTTER NETWORK WOULD MORE LIKELY BE NEEDED AFTER 5 PM INTO THE EARLY NIGHTTIME HOURS. STAY TUNED TO NOAA WEATHER RADIO FOR ADDITIONAL STATEMENTS OR POSSIBLE WATCHES AND WARNINGS. RLH ********************************************************************* ALAMANCE ANSON CHATHAM CUMBERLAND DAVIDSON DURHAM EDGECOMBE FORSYTH FRANKLIN GRANVILLE GUILFORD HALIFAX HARNETT HOKE JOHNSTON LEE MONTGOMERY MOORE NASH ORANGE PERSON RANDOLPH RICHMOND SAMPSON SCOTLAND STANLY VANCE WAKE WARREN WAYNE WILSON
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 6:30 PM EDT | Severe Thunderstorm Warning | RAH | Forsyth | 35 min |
| May 7, 6:41 PM EDT | Tornado Warning | RAH | Davidson, Forsyth | 34 min |
| May 7, 7:13 PM EDT | Severe Thunderstorm Warning | RAH | Guilford, Randolph | 32 min |
| May 7, 7:19 PM EDT | Tornado Warning | RAH | Davidson | 16 min |
| May 7, 7:27 PM EDT | Tornado Warning | RAH | Guilford | 33 min |
| May 7, 7:44 PM EDT | Tornado Warning | RAH | Randolph | 31 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 1998Every severe thunderstorm warning in 1998
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.