Alert archive / Virginia / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 142, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at Jun 26, 2000, 3:17 PM EDT for 4 counties in Virginia. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Jun 26, 2000, 3:17 PM EDT (19:17 UTC)
- Expired
- Jun 26, 2000, 4:00 PM EDT
- In force
- 43 min
- Issued by
- NWS Baltimore/Washington
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties City of Manassas, VA, City of Manassas Park, VA, Fauquier County, VA, Prince William County, VA
The radar
The Sterling radar (KLWX), 25 km from the middle of the area, began a volume at 19:21 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.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.3 hours before the alert went out and 29 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
- 130 J/kg
- Mixed-layer CIN
- -170 J/kg
- Mixed-layer LCL
- 979 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 146 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 261918 SVRWBC VAC061-153-683-685-262000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON 317 PM EDT MON JUN 26 2000 THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CITY OF MANASSAS IN NORTHERN VIRGINIA CITY OF MANASSAS PARK IN NORTHERN VIRGINIA FAUQUIER COUNTY IN NORTHERN VIRGINIA PRINCE WILLIAM COUNTY IN NORTHERN VIRGINIA * UNTIL 400 PM EDT * AT 311 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES SOUTHWEST OF HAYMARKET...MOVING EAST AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE... OVER HAYMARKET AT 334 PM 2 MILES NORTH OF BULL RUN AT 356 PM 5 MILES NORTHWEST OF MANASSAS PARK AT 400 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. LAT...LON 3882 7784 3865 7776 3874 7739 3895 7749 ARTHUR
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 26, 2:30 PM EDT, 47 minutes earlier.
Area forecast discussion, Jun 26, 2:30 PM EDT, 47 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 230 PM EDT MON JUN 26 2000 MDL GUIDANCE LATE THIS AFTRN AND USING ICWF...SO FCST BASED ON 00Z CYCLE WITH LAST MINUTE INPUT FROM WHAT IS AVBL FROM THE 12Z CYCLE. ATMS OVR THE AREA CONTS UNSTABLE THIS AFT. NO SYNOPTIC SCALE TRIGGER TO ACT ON. HOWEVER...ISOLD/SCT CNVCTN PSBL THRU EARLY EVE ALONG MESOSCALE FEATURES AND OVR MTNS WHERE OROGRAPHIC LIFT WL ENHANCE DVLPMT. AFTER SUNSET...EXPECT ACTIVITY TO DIE OFF AND BE GONE BY MIDNGT. LOOKS LIKE A BETTER CHC OF MORE ORGANIZED CONVECTION ON TUE. SHRTWV MVS TOWARD THE AREA FM W. THE ASSOCD SFC BNDRY APPROACHES DURING THE AFT/EVE HRS. WILL CONTINUE WITH THE IDEA OF LIKELY POPS. WL WORD IT AS AFT/EVE OVR THE MTNS AND LATE AFT/EVE E OF THE MTNS. SFC BNDRY GETS HUNG UP OVR THE AREA TUE NIGHT AND WED AS IT BECOMES PARALLEL TO UPR LVL FLO SO WL KEEP POPS IN FCST INTO 4TH PD. FCSTID = 15 .LW!X... DC...NONE. MD...NONE. VA...NONE. WV...NONE.
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 8:52 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax | 38 min |
| Jun 25, 11:48 PM EDT | Flash Flood Warning | LWX | Fauquier, Loudoun | 117 min |
| Jun 26, 2:34 PM EDT | Severe Thunderstorm Warning | LWX | Albemarle, City of Charlottesville | 41 min |
| Jun 26, 2:34 PM EDT | Severe Thunderstorm Warning | LWX | Orange | 41 min |
| Jun 26, 3:59 PM EDT | Severe Thunderstorm Warning | LWX | Spotsylvania, Stafford, City of Fredericksburg | 31 min |
| Jun 26, 4:08 PM EDT | Severe Thunderstorm Warning | LWX | Nelson | 52 min |
| Jun 26, 4:18 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier, Loudoun | 42 min |
| Jun 26, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | Spotsylvania, Stafford, City of Fredericksburg | 45 min |
| Jun 26, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | King George | 45 min |
| Jun 26, 5:02 PM EDT | Severe Thunderstorm Warning | LWX | Loudoun | 43 min |
| Jun 26, 6:33 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, City of Winchester | 57 min |
| Jun 26, 6:33 PM EDT | Severe Thunderstorm Warning | LWX | Clarke | 57 min |
| Jun 26, 6:53 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier, Loudoun | 52 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.