Alert archive / Maryland / Tornado Warnings in 2000
Tornado Warning 12, NWS Baltimore/Washington
NWS Baltimore/Washington issued this tornado warning at Jul 31, 2000, 5:08 PM EDT for Calvert County, Maryland. It was in force for 52 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
- Jul 31, 2000, 5:08 PM EDT (21:08 UTC)
- Expired
- Jul 31, 2000, 6:00 PM EDT
- In force
- 52 min
- Issued by
- NWS Baltimore/Washington
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Calvert County, MD
The radar
The Sterling radar (KLWX), 94 km from the middle of the area, began a volume at 21:12 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, 9.1 hours before the alert went out and 86 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
- 234 J/kg
- Mixed-layer CIN
- -85 J/kg
- Mixed-layer LCL
- 669 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
079 WFUS51 KLWX 312108 TORWBC MDC009-312200- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON 508 PM EDT MON JUL 31 2000 THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A * TORNADO WARNING FOR... CALVERT COUNTY IN SOUTHERN MARYLAND * UNTIL 600 PM EDT * AT 506 PM EDT...WEATHER SPOTTERS REPORTED A TORNADO 6 MILES SOUTH OF PRINCE FREDERICK...MOVING NORTH AT 10 MPH. * THE TORNADO IS EXPECTED TO BE... OVER PRINCE FREDERICK AT 530 PM IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. LAT...LON 3839 7670 3837 7647 3866 7640 3869 7669
What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at Jul 31, 3:20 PM EDT, 1 hour 48 minutes earlier.
Area forecast discussion, Jul 31, 3:20 PM EDT, 1 hour 48 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 320 PM EDT MON JUL 31 2000 FLORIDA WEATHER HAS COME TO THE MID ATL STATES WITH TMPS IN THE 80S AND DWPTS IN THE 70S...AND IT/S NOT LEAVING SOON. PERSISTENCE FORECAST WILL WORK OUT JUST FINE FOR THIS PACKAGE. SLW MOVNG SCATTERED SHWRS AND TSTMS WITH HEAVY RAIN WILL BE AROUND THROUGH THE WEEK. TROPICAL PLUME EVIDENCED ON THE WV LOOP INDICATES DEEP MOISTURE AND PW VALS ARE BTWN 1.5 AND TWO INCHES. NOT MUCH IN THE WAY OF FORCING...BUT RIDGE LINES AND WEAK IMPULSES WILL BE ENUF FOR RNDM CONVCTN...MAINLY DURING THE AFTERNOON AND EVENING HOURS. EXTNDED PROGS HAVE A DRIER CANADIAN HGH PRES AREA MOVING IN LATE SAT. MRF MOS GUIDANCE SHWS REMARKABLE DAY TO DAY CONSISTENCY THRU THE WEEK. STRONG FCSTID = 78 DCA 70 85 70 87 / 40 40 40 40 BWI 70 85 70 87 / 40 40 40 40 MRB 70 85 70 87 / 40 40 40 40 IAD 70 85 70 87 / 40 40 40 40 CHO 70 85 70 87 / 40 40 40 40 HGR 70 85 70 87 / 40 40 40 40 NHK 70 85 70 87 / 40 40 40 40 .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 |
|---|---|---|---|---|
| Jul 31, 4:42 PM EDT | Flash Flood Warning | LWX | Allegany | 78 min |
| Jul 31, 4:51 PM EDT | Tornado Warning | LWX | Saint Mary's | 39 min |
Nearby
Tornado Warnings in Maryland, 2000Every tornado warning in 2000Tornadoes 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.