Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 76, NWS Raleigh, NC

August 16, 1990Moore County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Aug 16, 1990, 3:32 PM EDT for Moore County, North Carolina. It was in force for 58 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, 3:32 PM EDT (19:32 UTC)
Expired: Aug 16, 1990, 4:30 PM EDT
In force: 58 min
Issued by: NWS Raleigh, NC
Area: Whole counties

County Moore 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, 3:45 PM EDT	Hail 0.75	Moore, 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, 7.5 hours before the alert went out and 94 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

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

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KRDU 161935
SVRRDU
NCC125-162030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
332 PM EDT THU AUG 16 1990
 
THE NATIONAL WEATHER SERVICE IN RALEIGH/DURHAM HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  430 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL NORTH CAROLINA
 
   ...EASTERN MOORE COUNTY
 
AT 335 PM NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM IN EAST CENTRAL MOORE COUNTY MOVING VERY 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, 1:33 PM EDT, 1 hour 59 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.

Local storm report, Aug 16, 1:55 PM EDT, 1 hour 37 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
153 PM EDT THU AUG 16 1990

TIME           EVENT

250 PM EDT     SMALL HAIL AND VERY HEAVY RAIN REPORTED AT JORDAN LAKE
            y   IN EASTERN CHATHAM COUNTY BY THE CHATHAM COUNTY SHERIFF
               DEPARTMENT.

JBP

Local storm report, Aug 16, 1:56 PM EDT, 1 hour 36 minutes before

STORM REPORT CORRECTED
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
155 PM EDT THU AUG 16 1990

TIME           EVENT

150 PM EDT     SMALL HAIL AND VERY HEAVY RAIN REPORTED AT JORDAN LAKE
             z  IN EASTERN CHATHAM COUNTY BY THE CHATHAM COUNTY SHERIFF
               DEPARTMENT.

CORRECTION FOR TIME OF EVENT.

JBP

Local storm report, Aug 16, 2:37 PM EDT, 55 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
236 PM EDT THU AUG 16 1990

TIME           EVENT

231 PM EDT     PENNY SIZE HAIL AT MONCURE IN EXTREME SOUTHEAST
               CHATHAM COUNTY NC.

JBP

Local storm report, Aug 16, 2:44 PM EDT, 48 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE  GREENSBORO NC
245 PM EDT THU AUG 16 1990

ATTN SELS...

1200 EST...1700Z 1 INCH HAIL REPORTED NEAR SNOW CAMP IN SOUTHERN
     ALAMANCE COUNTY.  2.75 INCHES OF RAIN ALSO IN SNOW CAMP IN LESS
     THAN AN HOUR.

RBN

Special weather statement, Aug 16, 3:27 PM EDT, 5 minutes before

NCZ006-162100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENSBORO NC
325 PM EDT THU AUG 16 1990

...SEVERE THUNDERSTORM WATCH FOR ALL OF THE NORTHWEST PIEDMONT AND
   SURRY COUNTY IN THE NORTHERN FOOTHILLS OF NC...

AT 320 PM RADAR SHOWED THUNDERSTORMS IN SOUTHEAST SURRY..NORTHERN
ROCKINGHAM..NORTHEAST DAVIE AND SOUTHWEST RANDOLPH COUNTIES IN THE
NORTHWEST PIEDMONT AND NORTHERN FOOTHILLS OF NORTH CAROLINA.  THE
STORMS WERE MOVING EAST SOUTHEAST AT ABOUT 15 MPH.

THESE STORMS HAVE SETTLED DOWN SOME IN THE PAST HOUR BUT STILL MAY
PRODUCE VERY HEAVY RAINS..DEADLY LIGHTNING..STRONG GUSTY WINDS AND
HAIL.

PERSONS IN THE NORTHWEST PIEDMONT AND NORTHERN FOOTHILLS SHOULD REMAIN
ON THE LOOKOUT FOR THREEATENING WEATHER CONDITIONS AND SHOULD TAKE
SHELTER IF STORMS APPROACH.

RBN

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, 1:47 PM EDT	Severe Thunderstorm Warning	RAH	Chatham	43 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, 1990 Every 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.