Alert archive / North Carolina / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 33, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at May 1, 1997, 4:44 PM EDT for Wake County, North Carolina. It was in force for 46 min. 8 reports 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 1, 1997, 4:44 PM EDT (20:44 UTC)
- Expired
- May 1, 1997, 5:30 PM EDT
- In force
- 46 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Wake County, NC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 1, 4:53 PM EDT | Hail 0.75 | Wake Forest, NC | |
| May 1, 4:54 PM EDT | Hail 0.75 | Nw Raleigh, NC | |
| May 1, 4:59 PM EDT | Hail 0.88 | 2s Rdu Airport, NC | |
| May 1, 5:09 PM EDT | Hail 0.75 | Raleigh, NC | |
| May 1, 5:15 PM EDT | Thunderstorm Wind 50 | Rolesville, NC | |
| May 1, 5:20 PM EDT | Thunderstorm Wind 50 | Raleigh, NC | |
| May 1, 5:24 PM EDT | Thunderstorm Wind 50 | Wendell, NC | |
| May 1, 5:38 PM EDT | Thunderstorm Wind 50 | Zebulon, NC |
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, 8.7 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 864 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 173 m²/s²
- 0-3 km storm-relative helicity
- 212 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 012046 RRA SVRRDU NCC183-012130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC 444 PM EDT THU MAY 1 1997 THE NATIONAL WEATHER SERVICE IN RALEIGH/DURHAM HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL NORTH CAROLINA ...WAKE COUNTY NATIONAL WEATHER SERVICE RADAR INDICATES A SEVERE THUNDERSTORM AT 444 PM OVER WESTERN WAKE COUNTY VICINTY OF I-40/CARY AREA. THIS SEVERE THUNDERSTORM WAS MOVING TO THE EAST AT 35 MPH. THIS STORM IS PRODUCING HEAVY RAINS AND DIME SIZED HAIL. AT THIS SPEED THE STORM WILL MOVE ACROSS RALEIGH AROUND 5 PM. &
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 3:24 PM EDT | Severe Thunderstorm Warning | RAH | Davidson | 36 min |
| May 1, 3:29 PM EDT | Severe Thunderstorm Warning | RAH | Franklin | 31 min |
| May 1, 3:49 PM EDT | Severe Thunderstorm Warning | RAH | Randolph | 41 min |
| May 1, 4:18 PM EDT | Severe Thunderstorm Warning | RAH | Chatham | 27 min |
| May 1, 4:47 PM EDT | Severe Thunderstorm Warning | RAH | Durham | 28 min |
| May 1, 5:12 PM EDT | Severe Thunderstorm Warning | RAH | Franklin | 33 min |
| May 1, 5:25 PM EDT | Severe Thunderstorm Warning | RAH | Randolph | 35 min |
| May 1, 5:26 PM EDT | Severe Thunderstorm Warning | RAH | Nash, Wake | 34 min |
| May 1, 5:45 PM EDT | Severe Thunderstorm Warning | RAH | Edgecombe, Wilson | 45 min |
| May 1, 6:59 PM EDT | Severe Thunderstorm Warning | RAH | Johnston, Wilson | 31 min |
| May 1, 7:30 PM EDT | Severe Thunderstorm Warning | RAH | Wilson | 30 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 1997Every severe thunderstorm warning in 1997
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.