Alert archive / Virginia / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 140, NWS Wakefield, VA

June 15, 20004 counties in Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Jun 15, 2000, 10:29 PM EDT for 4 counties in Virginia. It was in force for 31 min. 2 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: Jun 15, 2000, 10:29 PM EDT (02:29 UTC)
Expired: Jun 15, 2000, 11:00 PM EDT
In force: 31 min
Issued by: NWS Wakefield, VA
Area: Whole counties

Counties Essex County, VA, King and Queen County, VA, Middlesex County, VA, Westmoreland County, VA

The radar

The Norfolk radar (KAKQ), 97 km from the middle of the area, began a volume at 02:31 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.

What was reported inside it

Time	Report	Where	Remark
Jun 15, 10:45 PM EDT	Thunderstorm Wind 50 E	Dunnsville, VA	High winds blew down several trees onto Essex Mill Road.
Jun 15, 10:54 PM EDT	Thunderstorm Wind 50 E	Oak Grove, VA	One large tree blown down.

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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 15, 6:00 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 15, 7:45 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 2.5 hours before the alert went out and 134 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: 759 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 920 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 118 m²/s²
0-3 km storm-relative helicity: 197 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.0

Open this sounding in Storm Lab

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.

NWS Wakefield, VA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 15, 3:25 PM EDT, 7 hours 4 minutes earlier.

Area forecast discussion, Jun 15, 3:25 PM EDT, 7 hours 4 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WAKEFIELD VA
325 PM EDT THU JUN 15 2000

NO MAJOR PTN CHG SO HAVE TO GO WITH PERSISTENCE FCST. AIRMASS WL RMN
VERY MOIST AND UNSTBL NEXT FEW PDS.  THIS...COMBINED WITH DIURNAL
HEATING...& MINOR S/W DISTURBANCES WL BE ENUF TO TRIGGER CONVECTION
NEXT FEW AFTNS/EARLY EVENINGS.  ALOFT...UPR RDG OVR WRN ATLANTIC DOES SHIFT
WWD WHICH MAY REDUCE CONNECTIVE THREAT BUT FEEL THATS TOO OPTIMISTIC
ATOM. ETA/AVN BRINGS QUESTIONABLE SFC TROF/FNT SAT TO RGN WHICH I
THINK WL HOLD OFF TIL MON.  BASICALLY RAISED POPS IN MOST SPOTS
A BIT NEXT FEW PDS.  TEMPS AS PER GUIDANCE RIDING THE PERSISTENCE
ROUTE SO SEE LTL DEVIATION. WL ADD MENTION OF SVR TO WRN AND CNTRL
ZNS THIS EVENING AND LIKELY ISSUE SPS TO INFORM PUBLIC THREAT EXISTS.

.CWF...WNDS/WAVS INCREASED IN LATER PDS UNDER SW FLOW.

.AKQ...NONE.

SAS

In the hours before

Special weather statement, Jun 15, 8:05 PM EDT, 2 hours 24 minutes before

VAZ048-049-060>076-079>083-087>089-092-160300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD, VA
805 PM EDT THU JUN 15 2000

...SEVERE THUNDERSTORM WATCH NUMBER 458 REMAINS IN EFFECT FOR
PORTIONS OF CENTRAL VIRGINIA UNTIL 11 PM EDT...

AT 800 PM...A LINE OF THUNDERSTORMS...EXTENDED ACROSS THE PIEDMONT
FROM NEAR CHARLOTTSVILLE TO SOUTH BOSTON...MOVING NORTHEAST AT 20
MPH. THESE STORMS HAVE HAD A HISTORY...OF PRODUCING GOLFBALL SIZE
HAIL AND WIND GUSTS TO 60 MPH...HOWEVER THE STORMS HAVE BEEN
WEAKENING DURING THE PAST HOUR. THUNDERSTORMS WILL MOVE THROUGH THE
PIEDMONT...AND INTO THE I-95 CORRIDOR FROM...FREDERICKSBURG THROUGH
RICHMOND...TO EMPORIA BETWEEN 8:15 PM AND 10 PM.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

STAY TUNED TO NOAA WEATHER RADIO AND/OR LOCAL MEDIA FOR LATER
STATEMENTS AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

CULLEN

Local storm report, Jun 15, 9:27 PM EDT, 1 hour 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WAKEFIELD,VA
927 PM EDT THU JUN 15 2000

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0@910 PM    LOUISA                    VA     WIND DAMAGE 06/15/00
           LOUISA                         TREES DOWN ON ROUTE 33

BC/JEF

Local storm report, Jun 15, 9:27 PM EDT, 1 hour 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WAKEFIELD,VA
927 PM EDT THU JUN 15 2000

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0910 PM    LOUISA                    VA     WIND DAMAGE
06/15/00   LOUISA                         TREES DOWN ON ROUTE 33

BC/JEF

The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 15, 8:54 PM EDT	Severe Thunderstorm Warning	AKQ	Louisa	36 min
Jun 15, 9:58 PM EDT	Severe Thunderstorm Warning	AKQ	Caroline	17 min
Jun 15, 10:18 PM EDT	Severe Thunderstorm Warning	AKQ	Hanover, King William	27 min
Jun 15, 10:29 PM EDT	Severe Thunderstorm Warning	AKQ	Lancaster, Northumberland, Richmond	31 min
Jun 15, 10:29 PM EDT	Severe Thunderstorm Warning	AKQ	King William	31 min
Jun 15, 10:57 PM EDT	Severe Thunderstorm Warning	AKQ	Mecklenburg	48 min
Jun 15, 11:01 PM EDT	Severe Thunderstorm Warning	AKQ	Middlesex	19 min
Jun 15, 11:01 PM EDT	Severe Thunderstorm Warning	AKQ	Lancaster, Northumberland	19 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2000 Every severe thunderstorm warning in 2000

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; radar from the NEXRAD Level II archive.