Alert archive / Virginia / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 97, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at Jun 4, 2002, 5:23 PM EDT for Rockingham County, City of Harrisonburg, Virginia. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 4, 2002, 5:23 PM EDT (21:23 UTC)
- Expired
- Jun 4, 2002, 6:00 PM EDT
- In force
- 37 min
- Issued by
- NWS Baltimore/Washington
- Area
- Whole counties
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 9.4 hours before the alert went out and 138 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 826 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 169 m²/s²
- 0-3 km storm-relative helicity
- 296 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 4, 3:00 PM EDT, 2 hours 23 minutes earlier.
Area forecast discussion, Jun 4, 3:00 PM EDT, 2 hours 23 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 300 PM EDT TUE JUN 4 2002 MDLS IMPLY A VERY STRIKING DEMARKATION FOR LATE AFTN INSTABILITY - W/ THE XTMR NWRN CORNER OF THE CWA HAVING CAPES OF ALMOST 3000 INVOF WARM FNT WHILE ALONG THE BAY CAPES ARE ZERO. SPC HAS BEEN OUTLOOKING ERN PANHANDLE WV/FAR WRN MD IN SLT CHC..AND WL GO W/ A LKLY POP THROUGH MDNGT THERE. THINK WED CONTS TO HV THE BEST CHC OF SVR WX AREAWIDE. WRM FNT PUSHES TO THE N ALLOWING DAYTIME TO APRCH 90 AND AFTRN CAPES REACH OR EXCEED 2000 J/KG. FOR TIME BEING WL CONT WRDG OF CHC AFTN TRW - MAY NEED TO UPGRADE TO LKLY ON OVRNGT FCST. ETA HAS COME IN LN W/ YDAS AVN OF SLOWING THE PROGRESS OF THE CD FNT - ESSENTIALLY STOPPING IT OVR SRN VA...AND THEN FORMING A WV ON IT THU EVENG. WL KEEP WRDG OF CHC RW/TRW THROUGH THU NGT. AVN SHOWS HIGH FINALLY BLDG BACK IN FOR FRI WHICH SHOULD MAKE FOR A PLEASANT FIRST PART OF THE WKND. AFTR THAT RETURN FLOW DVLPS/INCRSG RH AS HIGH MOVES OFF CST. WL MAINTAIN CHC OF TRW MON AFTN...AND ADD THE CHC ON TUE AHEAD OF NEXT CD FNT. .LWX... 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 4, 5:42 PM EDT | Severe Thunderstorm Warning | LWX | Albemarle, Augusta | 48 min |
| Jun 4, 6:01 PM EDT | Tornado Warning | LWX | Albemarle, Augusta, Rockingham | 29 min |
| Jun 4, 6:23 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Shenandoah | 37 min |
| Jun 4, 6:31 PM EDT | Tornado Warning | LWX | Albemarle, City of Charlottesville | 44 min |
| Jun 4, 7:01 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Shenandoah, Warren, City of Winchester | 44 min |
| Jun 4, 7:16 PM EDT | Severe Thunderstorm Warning | LWX | Albemarle, City of Charlottesville | 44 min |
| Jun 4, 7:48 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 27 min |
| Jun 4, 5:53 PM EDT | Severe Thunderstorm Warning | LWX | Hardy | 37 min |
| Jun 4, 7:19 PM EDT | Severe Thunderstorm Warning | LWX | Berkeley, Jefferson | 41 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 2002Every severe thunderstorm warning in 2002
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.