Severe Thunderstorm Warning 86, NWS Raleigh, NC

Issued

Jul 1, 2002, 3:28 PM EDT (19:28 UTC)

Expired

Jul 1, 2002, 3:45 PM EDT

In force

17 min

Issued by

NWS Raleigh, NC

Area

Whole counties

County Guilford County, NC

The Roanoke radar (KFCX), 114 km from the middle of the area, began a volume at 19:32 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

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.

570 
WUUS52 KRAH 011928
SVRRAH
NCC081-011945-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
328 PM EDT MON JUL 1 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GUILFORD COUNTY IN NORTH CAROLINA

* UNTIL 345 PM EDT

* AT 328 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER CLIMAX...OR ABOUT 8 MILES NORTH OF
  RANDLEMAN...MOVING SLOWLY SOUTH.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  PLEASANT GARDEN
  FOREST OAKS
  CLIMAX

IF YOU ARE IN THE PATH OF THIS STORM...YOU SHOULD PREPARE
FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

THIS STORM IS CAPABLE OF PRODUCING HEAVY RAINFALL...WHICH MAY FLOOD
LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES. AVOID THESE AREAS
AND DO NOT CROSS FLOODED ROADS AS THEY MAYBE WASHED OUT.

$$

DGS

NWS Raleigh, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 1, 2:05 PM EDT, 1 hour 23 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RALEIGH NC
205 PM EDT MON JUL 1 2002

A WEAK TROUGH IN THE NORTHWEST PIEDMONT...ASSOCIATED MOISTURE
CONVERGENCE ON THE SOUTHEAST SIDE...AND AVAILABLE ENERGY ALOFT WILL
KEEP THE CHANCE OF THUNDERSTORMS INTO EARLY TONIGHT.  CONVECTIVE
DEBRIS AND SOME EARLY MORNING STRATUS SHOULD KEEP SKIES PARTLY
CLOUDY THE REMAINDER OF TONIGHT.  LOWS NEAR 70 APPEAR REASONABLE.

FOR TUESDAY AND WEDNESDAY...MODEL LOW LEVEL FLOW CONTINUES TO SHOW A
WEAK TROUGH OVER CENTRAL NC...MAINTAINS HIGH DEW POINT AIR NEAR THE
SURFACE...AND A CONDITIONALLY UNSTABLE AIRMASS WITH WEAK
PERTURBATIONS IN THE NORTHERLY FLOW ALOFT.  THIS SHOULD MAINTAIN THE
THREAT OF DIURNAL DEEP CONVECTION OVER THE AREA LAST FROM LATE
AFTERNOON INTO THE EARLY NIGHTTIME HOURS. CHANCES APPEAR GREATER
NORTHWEST AND SLIGHT IN THE SOUTHEAST. GUIDANCE IS FAIRLY CONSISTENT
AT SHOWING MAX TEMPERATURES IN THE 90 TO 95 DEGREE RANGE EACH DAY
AND LOWS NEAR 70 TO LOWER 70S THROUGH WEDNESDAY NIGHT.

ON 4TH OF JULY AND FRIDAY...THERE APPEARS TO BE A NET DIVERGENCE OF
AIR IN THE LOWER LEVELS OVER CENTRAL NC AS NOTED AT 850...SUBSIDENCE
WITH RIDGING ALOFT...AND INCREASING SURFACE PRESSURE.  THOUGH WITH
HOT AIR AND HIGH SURFACE DEWPOINTS CONTINUING...AND WITH THE
POTENTIAL FOR MESOSCALE PERTURBATIONS...DIURNAL DEEP CONVECTION
SHOULD BE MORE ISOLATED WITH THIS LARGER SCALE PATTERN.  HIGHS
SHOULD CONTINUE TO REACH LOWER 90S WITH LOWS NEAR 70.

FOR THE WEEKEND AND MONDAY...A BACKDOOR SURGE OF AIR FROM THE
NORTHEAST MAY DRY THE AIRMASS AND MODERATE TEMPERATURES CLOSER TO
CLIMATOLOGY.  MEDIUM RANGE MODELS SUGGEST LARGE SCALE RIDGING OVER
THE AREA WITH INCREASING SURFACE PRESSURE FROM THE OHIO VALLEY AND
GREAT LAKES REGION TO KEEP THE POTENTIAL OF DIURNAL CONVECTION BELOW
FORECAST MINIMUMS.

.RAH...NONE.

RFG

Severe Thunderstorm Warnings in North Carolina, 2002Every severe thunderstorm warning in 2002

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; radar from the NEXRAD Level II archive.