Alert archive / Virginia / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 101, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at Jun 2, 2000, 6:40 PM EDT for Arlington County, Fairfax County, City of Falls Church, Virginia; Montgomery County, Maryland. It was in force for 35 min. 6 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 2, 2000, 6:40 PM EDT (22:40 UTC)
- Expired
- Jun 2, 2000, 7:15 PM EDT
- In force
- 35 min
- Issued by
- NWS Baltimore/Washington
- Area
- Whole counties
Counties Montgomery County, MD, Arlington County, VA, City of Falls Church, VA, Fairfax County, VA
The radar
The Sterling radar (KLWX), 26 km from the middle of the area, began a volume at 22:39 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 2, 7:00 PM EDT | Hail 1.5 | Vienna, VA | Walnut sized hail fell near Wolftrap. |
| Jun 2, 7:11 PM EDT | Hail 0.88 | Clifton, VA | Dime to nickel sized hail fell. |
| Jun 2, 7:14 PM EDT | Hail 0.88 | Annandale, VA | Dime to nickel sized hail fell. |
| Jun 2, 7:15 PM EDT | Thunderstorm Wind | Countywide, VA | Several trees and power lines were downed. |
| Jun 2, 7:20 PM EDT | Thunderstorm Wind 52 E | Annandale, VA | A wind gust of 60 MPH was estimated. |
| Jun 2, 7:20 PM EDT | Hail 0.75 | Mc Lean, VA | Dime sized hail fell. |
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 nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 10.7 hours before the alert went out and 18 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
- 395 J/kg
- Mixed-layer CIN
- -233 J/kg
- Mixed-layer LCL
- 1375 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 161 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KLWX 022240 SVRWBC MDC031-VAC013-059-610-022315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON 640 PM EDT FRI JUN 2 2000 THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN MONTGOMERY COUNTY IN CENTRAL MARYLAND ARLINGTON COUNTY IN NORTHERN VIRGINIA CITY OF FALLS CHURCH IN NORTHERN VIRGINIA FAIRFAX COUNTY IN NORTHERN VIRGINIA * UNTIL 715 PM EDT * AT 638 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND SKYWARN SPOTTERS INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL OVER RESTON...MOVING SOUTHEAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... WOLF TRAP AT 646 PM EDT OAKTON AT 652 PM EDT VIENNA AT 654 PM EDT MERRIFIELD...THE I66 AND I495 INTERCHANGE AT 700 PM EDT DIME TO NICKEL SIZED HAIL HAS BEEN REPORTED WITH THIS STORM. SEEK SAFETY INDOORS AWAY FROM WINDOWS. IF CAUGHT OUTSIDE...DO NOT STAND UNDERNEATH TREES OR OTHER ISOLATED OBJECTS. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. AS THE STORM APPROACHES MOVE TO A PLACE OF SAFETY. TUNE INTO NOAA WEATHER RADIO OR YOUR LOCAL RADIO O R TV STATION FOR THE LATEST WEATHER INFORMATION. .END/ HTS
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 Baltimore/Washington wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 2, 3:05 PM EDT, 3 hours 35 minutes earlier.
Area forecast discussion, Jun 2, 3:05 PM EDT, 3 hours 35 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 305 PM EDT FRI JUN 2 2000 SQUALL LINE STILL WELL TO OUR W IN NW PA. COLD FRONT WILL PUSH THRU LATER TNT WITH ABOUT A 6 HR PERIOD OF GOOD COLD ADVCTN AND STRONGER WINDS AROUND 20 MPH. THOSE WINDS WILL USHER IN DRIER AND MUCH COOLER AIR THAN TODAY. 18Z SOUNDING AT KIAD HAD 3000+ CAPE AND LI -9...BUT A 3 DEG C CAP WHICH EXPLAINS NO CU E OF THE MTNS OVER THE CWA ATTM. AFTER LINE GOES THRU TNT. HIGH PRES IN CNTRL FOR THE REST OF THE WEEKEND. HI TMPS 75 TO 80. LOWS WILL BE A BIT COOLER THAN MOS ON SAT NIGHT WITH LGHT WNDS AND CLR SKIES. NXT SYSTM IS LATE MON/TUES TIME FRAME AS NEXT WAVES MOVE IN FROM THE WEST. .LWX... DC...NONE. MD...NONE. VA...NONE. WV...NONE. STRONG
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 2, 6:48 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier, Prince William | 27 min |
| Jun 2, 7:08 PM EDT | Severe Thunderstorm Warning | LWX | Arlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church | 52 min |
| Jun 2, 7:26 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier, Prince William | 34 min |
| Jun 2, 6:58 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard | 47 min |
| Jun 2, 7:08 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 52 min |
| Jun 2, 7:59 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 46 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 2000Severe Thunderstorm Warnings in Maryland, 2000Every 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.