Severe Thunderstorm Warning 239, NWS Baltimore/Washington

Issued

Aug 9, 2000, 3:44 PM EDT (19:44 UTC)

Expired

Aug 9, 2000, 4:30 PM EDT

In force

46 min

Issued by

NWS Baltimore/Washington

Area

Whole counties

County City of Harrisonburg, VA

The Sterling radar (KLWX), 133 km from the middle of the area, began a volume at 19:48 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.

000 
WUUS51 KLWX 091946
SVRWBC
VAC003-015-047-079-113-139-157-165-540-660-790-820-092030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON
344 PM EDT WED AUG 9 2000

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ALBEMARLE COUNTY IN CENTRAL VIRGINIA
  CITY OF CHARLOTTESVILLE IN CENTRAL VIRGINIA
  GREENE COUNTY IN CENTRAL VIRGINIA
  CULPEPER COUNTY IN NORTHERN VIRGINIA
  MADISON COUNTY IN NORTHWEST VIRGINIA
  PAGE COUNTY IN NORTHWEST VIRGINIA
  RAPPAHANNOCK COUNTY IN NORTHWEST VIRGINIA
  AUGUSTA COUNTY IN WESTERN VIRGINIA
  CITY OF HARRISONBURG IN WESTERN VIRGINIA
  CITY OF STAUNTON IN WESTERN VIRGINIA
  CITY OF WAYNESBORO IN WESTERN VIRGINIA
  ROCKINGHAM COUNTY IN WESTERN VIRGINIA

* UNTIL 430 PM EDT

* AT 343 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 7 MILES NORTHWEST OF LURAY TO 5
  MILES WEST OF WAYNESBORO...MOVING EAST AT 45 MPH.

* SEVERE THUNDERSTORMS WILL BE...
  OVER SHENANDOAH AT 346 PM
  OVER CRIMORA AT 348 PM
  OVER WAYNESBORO...ELKTON AT 350 PM
  OVER BIG MEADOWS AT 354 PM
  OVER CROZET AT 402 PM

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE
THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN
EXCESS OF 55 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.

AS THE STORM APPROACHES MOVE TO A PLACE OF SAFETY. TUNE INTO NOAA
WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR THE LATEST
WEATHER INFORMATION.

NWS Baltimore/Washington wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 9, 2:40 PM EDT, 1 hour 4 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
240 PM EDT WED AUG 9 2000

TROF CONTS OVR NE PTN OF THE COUNTRY INTO THE WEEKEND. ONE VORT MAX
PASSES N OF THE AREA OVRNGT. THE ASSOCD CDFNT WL PUSH INTO THE AREA
OVRNGT. AS THE VORT MAX LIFTS THRU NEW ENG...SFC FNT WL BECOME
SEPARATED FM ITS UPR LVL SUPPORT AND FNT WL SLOW DOWN OVR ERN PTNS OF
THE CWA ON THU. NEXT VORT DROPS THRU THE GTLKS THU NIGHT THEN PASSES
THRU THE AREA ON FRI. THIS SECOND AND FINAL VORT MAX WL SHOVE THE FNT
SE OF THE CWA THU NGT/FRI MORNING AND USHER IN A COOLER CANADIAN AIR
MASS.

FOR TONIGHT...BOW ECHO PROGRESSING AT ABOUT 285/50KTS TOWARD THE CWA
THIS AFTERNOON. BEHIND IT...ADDTNL DVLPMT OCCURRING OVR OH VLY. WL KEEP
LIKLEY POPS ALL NIGHT ALL ZNS. THINK INITIAL BOW ECHO WILL PRODUCE SVR
WX WITH SHRA/TSRA BEHIND THE MAIN BOW ECHO FOR A GOOD PORTION OF THE
NIGHT. WL USE ENHANCE WORDING FOR THE EVE HOURS.

W/FNT LAGGING OVR THE ERN ZNS ON THU WILL KEEP A CHC POP FOR SHRA/TSRA
GOING BUT KEEP IT DRY OVR WRN AREAS WHERE SOME SLIGHTLY DRIER AIR WILL
FILTER INTO THAT AREA. FNT FINALLY PUSHES SE OF THE AREA THU NIGHT SO
M/CLR THU NIGHT. COULD BE SOME CU/SC AROUND FRI AS VORT SWINGS THRU THE
AREA BUT M/SUNNY FCST SHUD WORK.

STUCK CLOSER TO THE AVN MOS FOR THIS FORECAST AS THE NGM MOS HAS BEEN
RUNNING WARM LATELY.

HEAT ADVY WILL DIE WITH THIS PACKAGE.

FCSTID = 15
DCA   73  90  70  85 /  70  30  10  20
BWI   70  90  67  86 /  70  30  10  10
MRB   68  90  63  85 /  60  20  10  10
IAD   68  90  63  85 /  60  20  10  10
CHO   70  90  67  86 /  70  30  10  10
HGR   68  90  63  85 /  60  20  10  10
NHK   70  90  67  86 3/  70  30  10  10

.LWX...
DC...SVR TSTM WATCH UNTIL 7 PM EDT.
MD...SVR TSTM WATCH UNTIL 7 PM EDT.
VA...SVR TSTM WATCH UNTIL 7 PM EDT.
WV...SVR TSTM WATCH UNTIL 7 PM EDT.

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

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; radar from the NEXRAD Level II archive.