Alert archive / North Carolina / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 22, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at May 5, 1989, 7:42 PM EDT for Iredell County, Rowan County, North Carolina. It was in force for 63 min. 3 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 5, 1989, 7:42 PM EDT (23:42 UTC)
- Expired
- May 5, 1989, 8:45 PM EDT
- In force
- 63 min
- Issued by
- NWS Blacksburg, VA
- Area
- Whole counties
Counties Iredell County, NC, Rowan 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 |
|---|---|---|---|
| May 5, 8:10 PM EDT | Thunderstorm Wind 0 | Iredell, NC | |
| May 5, 8:20 PM EDT | Thunderstorm Wind 0 | Rowan, NC | |
| May 5, 8:35 PM EDT | Thunderstorm Wind 0 | Rowan, 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, 11.7 hours before the alert went out and 82 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
- NaN m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 213 m²/s²
- 0-3 km storm-relative helicity
- 239 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 5, 7:21 PM EDT, 21 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROANOKE VA 715 PM EDT FRI MAY 5 1989 ...A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT FOR THE COUNTIES OF GILES MONTGOMERY FLOYD CARROLL AND ALL COUNTIES WEST OF THESE COUNTIES IN VIRGINIA... AT 710 PM RADAR AND IFLOWS GAUGES SHOWS SOME HEAVY RAIN IN PORTIONS OF SOUTHCENTRAL AND SOUTHWESTERN VIRGINIA. RADAR SHOWS SOME HEAVY SHOWERS FROM A LINE FROM CARROLL COUNTY NORTHEAST THROUGH ROANOKE COUNTY...ALSO FROM NORTHERN HENRY COUNTY NORTHEAST THROUGH BEDFORD COUNTY. IN SOME OF THESE AREAS IFLOWS SHOW RAINFALL FROM 1/2 INCH TO NEARLY AN INCH OF RAIN FALLING WITHIN AN HOUR. THIS COULD CAUSE SOME FLOODING ON SOME SMALL STREAMS AND LOW wAREAS WITH POOR DRAINAGE. ALSO SOME URBAN FOODING COULD OCCUR. PERSONS LIVING IN THESE AREAS SHOULD BE ALERT IN CASE FLOODING BEGINS. CE
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 7:36 PM EDT | Flash Flood Warning | RNK | Wilkes | 3 hr |
| May 5, 7:49 PM EDT | Flash Flood Warning | RNK | Franklin | 116 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.