Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 75, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Aug 16, 1990, 1:47 PM EDT for Chatham County, North Carolina. It was in force for 43 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
- Aug 16, 1990, 1:47 PM EDT (17:47 UTC)
- Expired
- Aug 16, 1990, 2:30 PM EDT
- In force
- 43 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Chatham 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 |
|---|---|---|---|
| Aug 16, 2:31 PM EDT | Hail 0.75 | Chatham, 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, 5.8 hours before the alert went out and 72 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
- 1735 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 697 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 52 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 161749 SVRRDU NCC037-161830- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC 147 PM EDT THU AUG 16 1990 THE NATIONAL WEATHER SERVICE IN RALEIGH/DURHAM HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 230 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL NORTH CAROLINA ...EASTERN CHATHAM COUNTY AT 145 RALEIGH WEATHER RADAR SHOWED A SEVERE THUNDERSTORM OVER EASTsERN CHATHAM COUNTY. THE STORM WAS MOVING SLOWLY TO THE EAST. THIS SLOW MOVING THUNDERSTORM MAY ALSO CAUSE FLOODING OF SMALL STREAMS...LOW AREAS...AND UNDERPASSES.
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, Aug 16, 11:22 AM EDT, 2 hours 25 minutes before
NCZALL-161800- NCZ003>005-014-015-DDHHMM- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC 1120 AM EDT THU AUG 16 1990 SKYWARN OUTLOOK...THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING ACROSS MUCH OF NORTH CAROLINA. SEVERE THUNDERSTORMS HAVE LARGE HAIL AND DAMAGING WINDS. LISTEN TO LOCAL RADIO..TV..OR WEATHER RADIO FOR LATER STATEMENTS OR POSSIBLE WARNINGS. JBP
Special weather statement, Aug 16, 11:22 AM EDT, 2 hours 25 minutes before
NCZALL-161800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC 1120 AM EDT THU AUG 16 1990 SKYWARN OUTLOOK...THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING ACROSS MUCH OF NORTH CAROLINA. SEVERE THUNDERSTORMS HAVE LARGE HAIL AND DAMAGING WINDS. LISTEN TO LOCAL RADIO..TV..OR WEATHER RADIO FOR LATER STATEMENTS OR POSSIBLE WARNINGS. JBP
Special weather statement, Aug 16, 12:12 PM EDT, 1 hour 35 minutes before
NCZ006-161600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 1205 PM EDT THU AUG 16 1990 AT 1205 PM NATIONAL WEATHER SERVICE RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY RAIN AND POSSIBLE HAIL OVER NORTHEAST GUILFORD COUNTY MOVING EAST SOUTHEAST AT 15 MPH. OTHER THUNDERSTORMS ARE OCURRING OVER THE COUNTIES OF STOKES, FORSYTH, ROCKINGHAM AND ALAMANCE. ALONG WITH THE VERY HEAVY RAIN THIS THUNDERSTORM MAY PRODUCE... ...FREQUENT DEADLY LIGHTNING...GUSTY WINDS, HAIL AND SOME MINOR FLOODING OF STREAMS AND ROADS. IF YOU ARE IN THE PATH OF THIS STORM THEN BE ON THE ALERT FOR THREATENING WEATHER CONDITIONS AND BE PREPARED TO TAKE SAFE SHELTER IF THE STORM APPROACHES. JMS
Special weather statement, Aug 16, 1:29 PM EDT, 18 minutes before
NCZ006-161830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 128 PM EDT THU AUG 16 1990 ...THUNDERSTORMS WITH VERY HEAVY RAIN IN THE NORTHWEST PIEDMONT OF NC... AT 120 PM RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY RAIN JUST SOUTHEAST OF WINSTON SALEM. ANOTHER STRONG STORM WAS IN NORTHERN STOKES COUNTY ALONG THE VIRGINIA BORDER NORTH OF DANBURY. THE STORMS WERE MOVING EAST SOUTHEAST AT ABOUT 15 MPH. ALONG WITH THE VERY HEAVY RAIN..THESE THUNDERSTORMS MAY PRODUCE FREQUENT DEADLY LIGHTNING..STRONG GUSTY WINDS..HAIL AND SOME MINOR FLOODING OF CREEKS AND LOW LYING URDAB AREAS. HAIL UP TO 1 INCH IN DIAMETER AND RAINS RANGING BETWEEN 1 AND 3 INCHES HAVE BEEN REPORTED WIXTH SOME OF THE STRONGER STORMS THIS AFTERNOON. PERSONS IN THE NORTHWEST PIEDMONT SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND SHOULD TAKE SHELTER IF STORMS APPROACH. RBN
Special weather statement, Aug 16, 1:33 PM EDT, 14 minutes before
NCZ006-161830- SPECIAL WEATHER STATEMENT...CORRECTED... NATIONAL WEATHER SERVICE GREENSBORO NC 128 PM EDT THU AUG 16 1990 ...THUNDERSTORMS WITH VERY HEAVY RAIN IN THE NORTHWEST PIEDMONT OF NC... AT 120 PM RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY RAIN JUST SOUTHEAST OF WINSTON SALEM. ANOTHER STRONG STORM WAS IN NORTHERN STOKES COUNTY ALONG THE VIRGINIA BORDER NORTH OF DANBURY. THE STORMS WERE MOVING EAST SOUTHEAST AT ABOUT 15 MPH. ALONG WITH THE VERY HEAVY RAIN..THESE THUNDERSTORMS MAY PRODUCE FREQUENT DEADLY LIGHTNING..STRONG GUSTY WINDS..HAIL AND SOME MINOR FLOODING OF CREEKS AND LOW LYING URBAN AREAS. HAIL UP TO 1 INCH IN DIAMETER AND RAINS RANGING BETWEEN 1 AND 3 INCHES HAVE BEEN REPORTED WITH SOME OF THE STRONGER STORMS THIS AFTERNOON. PERSONS IN THE NORTHWEST PIEDMONT SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND SHOULD TAKE SHELTER IF STORMS APPROACH. RBN CORRECTED SPELLING OF URBAN IN 2NaD PARAGRAPH.
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 10:37 PM EDT | Flash Flood Warning | RAH | Pitt | 3 hr |
| Aug 15, 11:15 PM EDT | Flash Flood Warning | RAH | Greene | 3 hr |
| Aug 16, 12:42 PM EDT | Severe Thunderstorm Warning | RAH | Chatham, Orange | 63 min |
| Aug 16, 3:32 PM EDT | Severe Thunderstorm Warning | RAH | Moore | 58 min |
| Aug 16, 4:33 PM EDT | Severe Thunderstorm Warning | RAH | Hoke, Moore, Scotland | 42 min |
| Aug 16, 7:18 PM EDT | Severe Thunderstorm Warning | RAH | Wake | 42 min |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.