Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 90, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Sep 7, 1990, 6:54 PM EDT for Granville County, Person County, North Carolina. It was in force for 36 min.
The area
The counties it named.
The facts
- Issued
- Sep 7, 1990, 6:54 PM EDT (22:54 UTC)
- Expired
- Sep 7, 1990, 7:30 PM EDT
- In force
- 36 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
Counties Granville 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.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.9 hours before the alert went out and 102 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
- 737 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 1456 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 74 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 072257 SVRRDU NCC077-145-072330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC 654 PM EDT FRI SEP 7 1990 THE NATIONAL WEATHER SERVICE IN RALEIGH/DURHAM HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 730 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTH CENTRAL NORTH CAROLINA ...CENTRAL GRANVILLE COUNTY...SOUTHEASTERN PERSON COUNTY AT 650PM DIME SIZE HAIL WAS AT ROXBORO. THIS THUNDERSTORM WAS MOVING SOUTHEAST AROUND 40 MPH. THIS THUNDERSTORM WILL AFFECT SOUTHEASTERN PERSON COUNTY AND THE SOUTHERN HALF OF GRANVILLE COUNTY UNTIL AROUND 730PM. PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT FOR LARGE HA[IL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN OCCUR WITH ANY THUNDERSTORM.
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, Sep 7, 6:20 PM EDT, 34 minutes before
NCZ-006-007-009-072330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 619 PM EDT FRI SEP 7 1990 ...THUNDERSTORMS WITH VERY HEAVY RAIN OVER SOUTH CENTRAL VIRGINIA MOVING TOWARD NORTHERN NORTH CAROLINA LATE THIS AFTERNOON... AT 615 PM NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS ...SOME WITH VERY HEAVY RAIN...OVER THE SOUTHERN VIRGINIA COUNTIES OF GRAYSON...CARROL AND PATRICK. THESE STORMS WILL MOVE INTO THE NORTHERN NORTH CAROLINA COUNTIES OF ALLEGHANY...SURRY AND STOKES BY 630 PM. THE STORMS WERE MOVING SOUTHEAST AT 30 MPH. THESE STORMS ARE CAPABLE OF PRODUCING VERY HEAVY DOWNPOURS...FREQUENT DEADLY LIGHTNING...STRONG GUSTY WINDS AND POSSIBLY SOME HAIL. PERSONS IN THE NORTHERN BORDER COUNTIES OF NORTH CAROLINA MENTIONED ABOVE SHOULD BE ON THE LOOKOUT FOR THESE STORMS AS THEY APPROACH. SINCE A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR SOUTHERN VIRGINIA... STAY TUNED TO YOUR FAVORITE TV OBR RADIO STATION FOR A POSSIBLE WARNING OR LATER STATEMENTS. GR
Nearby
Severe Thunderstorm Warnings in North Carolina, 1990Every severe thunderstorm warning in 1990
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.