Alert archive / North Carolina / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 111, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Jul 12, 1989, 4:48 PM EDT for Orange County, Person County, North Carolina. It was in force for 57 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
- Jul 12, 1989, 4:48 PM EDT (20:48 UTC)
- Expired
- Jul 12, 1989, 5:45 PM EDT
- In force
- 57 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
Counties Orange County, NC, Person County, NC
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 12, 5:30 PM EDT | Thunderstorm Wind 0 | Person, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.8 hours before the alert went out and 78 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
- 1663 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 1098 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 54 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, Jul 12, 1:12 PM EDT, 3 hours 36 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 110 PM EDT WED JUL 12 1989 ...THUNDERSTORMS IN NORTHWESTERN NORTH CAROLINA... AT 105 PM RADAR SHOWED A BAND OF THUNDERSTORMS...SOME WITH HEAVY RAIN IN NORTHWESTERN STOKES COUNTY NEAR THE VIRGINIA BORDER...NORTHEAST WILKES COUNTY ALONG THE SURRY COUNTY BORDER AND ALLEGHENY COUNTY OF THE NORTHERN MOUNTAINS. THE STORMS ARE MOVING SOUTHEAST AT 10 TO 15 MPH. PERSONS IN STOKES...SURRY AND ALLEGHENY COUNTIES OF NORTHWESTERN NORTH CAROLINA SHOULD BE ON THE LOOKOUT FOR STRONG GUSTY WINDS ...VERY HEAVY DOWNPOURS...POSSIBLE HAIL AND DEADLY LIGHTNING. SOME FLOODING OF ROADWAYS AND LOW LYING AREAS IS POSSIBLE. TAKE SHELTER WHEN STORMS APPROACH. GR
Special weather statement, Jul 12, 2:07 PM EDT, 2 hours 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 206 PM EDT WED JUL 12 1989 ...THUNDERSTORMS IN NORTHWESTERN NORTH CAROLINA... AT 200 PM RADAR SHOWED SCATTERED THUNDERSTORMS...SOME WITH VERY HEAVY RAIN IN THE NORTHERN FOOTHILLS...ALLEGHANY COUNTY OF THE NORTHERN MOUNTAINS AND STOKES COUNTY OF THE NORTHWEST PIEDMONT. THE STORMS WITH THE HEAVIEST DOWNPOURS ARE IN EXTREME WESTERN SURRY COUNTY AND IN THE DANBURY AREA OF STOKES COUNTY. MOVEMENT WAS SOUTHEAST AT 15 MPH. PERSONS IN STOKES...SURRY...WILKES...YADKIN AND ALLEGHENY COUNTIES OF NORTHWESTERN NORTH CAROLINA SHOULD BE ON THE LOOKOUT FOR STRONG GUSTY WINDS...VERY HEAVY DOWNPOURS...POSSIBLE HAIL AND DEADLY LIGHTNING. SOM5E FLOODING OF ROADWAYS AND LOW LYING AREAS IS POSSIBLE SINCE THE STORMS ARE MOVING RELATIVELY SLOW. TAKE SHELTER WHEN STORMS APPROACH. GR
Special weather statement, Jul 12, 3:40 PM EDT, 1 hour 8 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 336 PM EDT WED JUL 12 1989 ...THUNDERSTORMS IN THE NORTHWEST PIEDMONT OF NORTH CAROLINA... AT 330 PM RADAR SHOWED SCATTERED THUNDERSTORMS...SOME WITH VERY HEAVY RAIN IN THE NORTHWEST PIEDMONT. THE STORMS WITH THE HEAVIEST DOWNPOURS ARE IN NORTHEAST FORSYTH COUNTY JUST WEST OF BELEW CREEK...SOUTHWEST RANDOLPH COUNTY WEST OF THE UWHARRIE RIVER AND SOUTH CENTRAL ALAMANCE COUNTY. MOVEMENT WAS GENERALLY TO THE EAST AT 10 TO 15 MPH. PERSONS IN THE NORTHWEST PIEDMONT SHOULD BE ON THE LOOKOUT FOR GUSTY WINDS...VERY HEAVY DOWNPOURS...POSSIBLE HAIL AND DEADLY LIGHTNING. SOME FLOODING OF ROADWAYS AND LOW LYING AREAS IS POSSIBLE SINCE THE STORMS ARE MOVING RELATIVELY SLOW. TAKE SHELTER WHEN STORMS APPROACH. GR
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 2:12 PM EDT | Severe Thunderstorm Warning | RAH | Orange | 63 min |
| Jul 12, 2:59 PM EDT | Severe Thunderstorm Warning | RAH | Chatham | 61 min |
| Jul 12, 3:20 PM EDT | Severe Thunderstorm Warning | RAH | Orange | 55 min |
| Jul 12, 3:50 PM EDT | Severe Thunderstorm Warning | RAH | Granville, Vance | 55 min |
| Jul 12, 4:31 PM EDT | Severe Thunderstorm Warning | RAH | Chatham | 59 min |
| Jul 12, 4:59 PM EDT | Severe Thunderstorm Warning | RAH | Vance, Warren | 61 min |
| Jul 12, 5:10 PM EDT | Severe Thunderstorm Warning | RAH | Granville | 50 min |
| Jul 12, 5:48 PM EDT | Severe Thunderstorm Warning | RAH | Nash | 42 min |
| Jul 12, 6:03 PM EDT | Severe Thunderstorm Warning | RAH | Cumberland, Harnett | 42 min |
| Jul 12, 6:53 PM EDT | Severe Thunderstorm Warning | RAH | Pitt | 52 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.