Alert archive / Virginia / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 71, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at May 13, 2000, 6:04 PM EDT for Rappahannock County, Virginia. It was in force for 31 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
- May 13, 2000, 6:04 PM EDT (22:04 UTC)
- Expired
- May 13, 2000, 6:35 PM EDT
- In force
- 31 min
- Issued by
- NWS Baltimore/Washington
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Rappahannock County, VA
The radar
The Sterling radar (KLWX), 71 km from the middle of the area, began a volume at 22:05 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 13, 2:45 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 10.1 hours before the alert went out and 76 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
- 680 J/kg
- Mixed-layer CIN
- -169 J/kg
- Mixed-layer LCL
- 1644 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- -23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.7
The text
As transmitted, in the capitals the NWS used until 2016.
394 WUUS51 KLWX 132205 SVRWBC VAC157-132235- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON ISSUED BY NATIONAL WEATHER SERVICE WAKEFIELD VA 604 PM EDT SAT MAY 13 2000 THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... RAPPAHANNOCK COUNTY IN NORTHWEST VIRGINIA * UNTIL 635 PM EDT * AT 604 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES SOUTH OF PANORAMA...OR ABOUT 5 MILES SOUTHWEST OF SPERRYVILLE...MOVING EAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR REDIVIVA AND SMEDLEY AT 605 PM EDT WASHINGTON AND ROUND HILL AT 610 PM EDT CASTLETON AND LAUREL MILLS AT 615 PM EDT ESTES AND VIEWTOWN AT 620 PM EDT HACKLEYS CROSSROAD AT 625 PM EDT THE SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING HAIL UP TO THE SIZE OF QUARTERS. WINDS UP TO 60 MILES AN HOUR. VERY FREQUENT AND DEADLY CLOUD-TO-GROUND LIGHTNING. THE STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS AND LARGE HAIL. LAT...LON 3870 7836 3853 7831 3858 7795 3878 7801 $$ HESS
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 May 13, 2:40 PM EDT, 3 hours 24 minutes earlier.
Area forecast discussion, May 13, 2:40 PM EDT, 3 hours 24 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 240 PM EDT SAT MAY 13 2000 ...SHORT TERM... AT 18Z...WK BNDRY DRAPED OVR THE NE ZNS SLOWLY MOVING NEWD IN RESPONSE TO SW FLO AHEAD OF APPROACHING CDFNT. S OF THE BNDRY...OVER MUCH OF THE CWA...ATMS IS VERY UNSTABLE WITH LIS AROUND -10...CAPES OF 3500 TO 4500...AND DWPTS IN THE 70S. ATMS ALSO BEGINNING TO DESTABILIZE OVR NE ZNS AS BNDRY MVS NWD. OLD OUTFLOW BNDRY OVR WRN ZNS NOW ACTING AS A FOCUS FOR REDVLPMT OF CNVCTN. EXPECT PREFRONTAL CNVCTN TO INTENSIFY AND MV EWD DURING THE REST OF THE AFTRN. MAIN THREAT WL BE LARGE HAIL AND SPOTTY DAMAGING WINDS. NOT A LOT OF DIRECTIONAL SHEAR TO SUPPORT TORNADOES. HWVR...CELLS THAT FORM AT THE INTERSECTION OF THE APPROACHING BNDRY WITH THE OLD BNDRY DRAPED OVR THE NE ZNS WL HAVE TO BE WATCHED CLOSELY. WATCHBOX OUT. CDFNT PUSHES E OF THE CWA BY 03Z. WL KEEP A RMDNR OF AFT PD E OF THE BLUE RDG AND KEEP TSRA GOING IN OUR SE COUNTIES INTO THE EARLY OVRNGT PD. ...LONG TERM... LONGWAVE TROF SETS UP OVR ERN PTN OF THE NATION SUN THRU MON. AT THE SFC...HI PRES BUILDS OVR THE AREA...BUT SLIPS OFFSHR MON. A VORT MAX ROTATING AROUND THE UPR LVL TROF WL SEND ANOTHER WK BNDRY THRU THE AREA LATE MON. FCST WL BE SUNNY SUN AND CLR SUN NGT. AVN AND ETA HINT AT SOME CLNDS ON MON AS WE GET RETURN FLOW AROUND THE DEPARTING SFC HI AND THE WEAK FRONT APPROACHES FROM THE NW. WL GO P/S 4TH PD. DWPTS FCSTD TO FALL INTO THE LWR 40S SUN THRU MON RESULTING IN LOW HUMIDITY. FOR TEMPS...AVN AND NGM MOS WITHIN A FEW DEG OF ONE ANOTHER WITH THE AVN LEANING ON THE COOL SIDE. WENT WITH A BLEND OF THE AVN AND NGM MOS 2ND & 4TH PDS. WENT SLIGHTLY BELOW GUIDANCE 3RD PD AS SKC ALONG WITH LGT WINDS WL RESULT IN GOOD RADIATIONAL COOLING. BEYOND 4TH PD...HIGH PRES BUILDS INTO THE AREA TUE & WED WITH NEAR NORMAL TEMPS AND LOW HUMIDITY. COULD SEE SOME CLOUDINESS RETURN THU AS SFC HI SLIPS OFFSHR AND WMFNT APPROACHES FM THE W. .LWX...NONE.
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 12:00 PM EDT | Severe Thunderstorm Warning | LWX | Highland | 35 min |
| May 13, 1:21 PM EDT | Severe Thunderstorm Warning | LWX | Rockingham | 39 min |
| May 13, 1:51 PM EDT | Severe Thunderstorm Warning | LWX | Page, Shenandoah | 39 min |
| May 13, 2:21 PM EDT | Severe Thunderstorm Warning | LWX | Clarke, Loudoun | 39 min |
| May 13, 2:26 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier, Rappahannock, Warren | 49 min |
| May 13, 2:36 PM EDT | Severe Thunderstorm Warning | LWX | Page | 39 min |
| May 13, 4:08 PM EDT | Severe Thunderstorm Warning | LWX | Rockingham | 52 min |
| May 13, 4:34 PM EDT | Severe Thunderstorm Warning | LWX | Page, Shenandoah | 41 min |
| May 13, 5:01 PM EDT | Severe Thunderstorm Warning | LWX | Augusta, Nelson | 59 min |
| May 13, 5:15 PM EDT | Severe Thunderstorm Warning | LWX | Page, Rappahannock, Warren | 30 min |
| May 13, 5:22 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, City of Winchester | 53 min |
| May 13, 5:31 PM EDT | Severe Thunderstorm Warning | LWX | Clarke | 29 min |
| May 13, 5:34 PM EDT | Severe Thunderstorm Warning | LWX | Page | 31 min |
| May 13, 5:40 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Fauquier, Rappahannock | 30 min |
| May 13, 5:50 PM EDT | Severe Thunderstorm Warning | LWX | Albemarle, City of Charlottesville | 40 min |
| May 13, 6:07 PM EDT | Severe Thunderstorm Warning | LWX | Prince William, City of Manassas | 28 min |
| May 13, 6:07 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier | 28 min |
| May 13, 6:16 PM EDT | Severe Thunderstorm Warning | LWX | Loudoun | 29 min |
| May 13, 6:30 PM EDT | Severe Thunderstorm Warning | LWX | Prince William, City of Manassas, City of Manassas Park | 30 min |
| May 13, 6:30 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, City of Fairfax | 30 min |
| May 13, 6:34 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Rappahannock | 16 min |
| May 13, 6:53 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper | 32 min |
| May 13, 6:58 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, Prince William | 32 min |
| May 13, 6:58 PM EDT | Severe Thunderstorm Warning | LWX | City of Fairfax | 32 min |
| May 13, 7:35 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Fauquier, Stafford | 40 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.