Alert archive / North Carolina / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 23, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Apr 21, 1997, 9:40 PM EDT for Guilford County, North Carolina. It was in force for 20 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 21, 1997, 9:40 PM EDT (01:40 UTC)
- Expired
- Apr 21, 1997, 10:00 PM EDT
- In force
- 20 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Guilford County, NC
The radar
The Roanoke radar (KFCX), 114 km from the middle of the area, began a volume at 01:40 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.7 hours before the alert went out and 10 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
- 1235 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 253 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KRDU 220140 RRA SVRRDU NCC081-220200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC 940 PM EDT MON APR 21 1997 THE NATIONAL WEATHER SERVICE IN RALEIGH/DURHAM HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL NORTH CAROLINA ...EASTERN GUILFORD COUNTY WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAILD OVER EASTERN GUILFORD COUNTY...MOVING EAST AT 40 MPH. PEOPLE SHOULD BE ESPECIALLY ALERT FOR LARGE HAIL AND DAMAGING WIND. FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN POSE A DANGER WITH ANY THUNDERSTORM. SEEK SHELTER IMMEDIATEL~Y AND REPORT DAMAGE TO EMERGENCY OFFICIALS FOR RELAY TO THE NATIONAL WEATHER SERVICE.
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
Local storm report, Apr 21, 4:56 PM EDT, 4 hours 44 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
456 PM EDT MON APR 21 1997
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0430 PM SEYMOUR JOHNSON AFB NC <.5 INCH HAIL
04/21/97 WAYNE PEA SIZE HAIL
0430 PM MT OLIVE NC .5 INCH HAIL
04/21/97 WAYNE MARBLE SIZE HAIL IN MT
OLIVE REPORTED BY
SHERIFFS DEPUTY
0435 PM GOLDSBORO NC 1.75 INCH HAIL
04/21/97 WAYNE NEAR GOLFBALL SIZE HAIL
REPORTED BY SHERIFFS
DEPUTY AT THE HWY 70/111
INTERSECTION JUST EAST OF
GOLDSBOROLocal storm report, Apr 21, 4:57 PM EDT, 4 hours 43 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
456 PM EDT MON APR 21 1997
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0430 PM SEYMOUR JOHNSON AFB NC <.5 INCH HAIL
04/21/97 WAYNE PEA SIZE HAIL
0430 PM MT OLIVE NC .5 INCH HAIL
04/21/97 WAYNE MARBLE SIZE HAIL IN MT
OLIVE REPORTED BY
SHERIFF'S DEPUTY
0435 PM GOLDSBORO NC 1.75 INCH HAIL
04/21/97 WAYNE NEAR GOLFBALL SIZE HAIL
REPORTED BY SHERIFF'S
DEPUTY AT THE HWY 70/111
INTERSECTION JUST EAST OF
GOLDSBOROSpecial weather statement, Apr 21, 6:06 PM EDT, 3 hours 34 minutes before
NCZ013-014-030>032-212315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC 606 PM EDT MON APR 21 1997 THE TORNADO WATCH...NUMBER 168...HAS BEEN CANCELED IN THE NORTHEAST PORTION OF NORTH CAROLINA...INCLUDING THE FOLLOWING COUNTIES... GATES...HERTFORD...BERTIE...CHOWAN...AND PERQUIMANNS. THE TORNADO WATCH CONTINUES IN EFFECT SOUTH OF THOSE COUNTIES IN THE CENTRAL AND SOUTHERN COASTAL AREAS AND CENTRAL AND SOUTHERN COASTAL PLAIN...UNTIL 10 PM. RFG
Special weather statement, Apr 21, 8:28 PM EDT, 1 hour 12 minutes before
NCZ078-220100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC 828 PM EDT MON APR 21 1997 A SEVERE THUNDERSTORM WARNING ISSUED EARLIER FOR SOUTHERN WAYNE COUNTY HAS NOW EXPIRED AS OF 830 PM. WEATHER RADAR CONTINUED TO DETECT THUNDERSTORMS OVER CENTRAL WAYNE COUNTY NEAR GOLDSBORO AND AREAS TO THE EAST AND WEST. A TORNADO WATCH CONTINUES OVER THE AREA UNTIL 10 PM. STAY TUNED TO NOAA WEATHER RADIO FOR ADDITIONAL STATEMENTS OR POSSIBLE WARNINGS. REPORT ANY SEVERE WEATHER TO EMERGENCY OFFICIALS FOR RELAY TO THE NATIONAL WEATHER SERVICE. RFG
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 21, 8:03 PM EDT | Severe Thunderstorm Warning | RAH | Wayne | 27 min |
| Apr 21, 9:47 PM EDT | Severe Thunderstorm Warning | RAH | Alamance | 28 min |
| Apr 21, 10:17 PM EDT | Severe Thunderstorm Warning | RAH | Chatham, Orange | 28 min |
| Apr 21, 10:30 PM EDT | Severe Thunderstorm Warning | RAH | Durham | 45 min |
| Apr 21, 10:39 PM EDT | Severe Thunderstorm Warning | RAH | Wake | 51 min |
| Apr 21, 11:14 PM EDT | Severe Thunderstorm Warning | RAH | Johnston | 46 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.