Alert archive / Maryland / Tornado Warnings in 2003

Tornado Warning 9, NWS Baltimore/Washington

May 7, 2003Calvert County, Maryland

NWS Baltimore/Washington issued this tornado warning at May 7, 2003, 8:02 PM EDT for Calvert County, Maryland. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 7, 2003, 8:02 PM EDT (00:02 UTC)
Expired
May 7, 2003, 8:30 PM EDT
In force
28 min
Issued by
NWS Baltimore/Washington
Area
Counties, with a storm outline in the text

County Calvert County, MD

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 0.0 hours before the alert went out and 102 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 00:00Z on 2003-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 290 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 2003-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -75 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
290 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
757 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
-75 m²/s²
0-3 km storm-relative helicity
-37 m²/s²
Significant tornado parameter
-0.1
Supercell composite
-0.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

600 
WFUS51 KLWX 080002
TORLWX
MDC009-080030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
802 PM EDT WED MAY 7 2003

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* TORNADO WARNING FOR
  SOUTHERN CALVERT COUNTY IN SOUTHERN MARYLAND

* UNTIL 830 PM EDT.

* AT 802 PM EDT...DOPPLER RADAR INDICATED A DEVELOPING TORNADO 4
  MILES SOUTH OF BROOMES ISLAND. THIS DANGEROUS STORM IS MOVING
  SOUTHEAST AT 35 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...COVE          
  POINT...DRUM POINT...SOLOMONS...CHESAPEAKE RANCH ESTATES...        
  APPEAL...HELLEN...AND LUSBY.

DAMAGE HAS BEEN REPORTED WITH THIS DANGEROUS STORM IN ST MARYS 
COUNTY. 

IF YOU ARE IN OR NEAR THE PATH OF THIS STORM...TAKE COVER NOW IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS

IN ADDITION TO THE TORNADO THREAT...LARGE HAIL AND DAMAGING WINDS CAN
BE EXPECTED WITH THIS STORM. GO TO A SAFE PLACE NOW

LAT...LON 3846 7647 3842 7660 3830 7643 3838 7634

$$
MANNING

The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 7, 8:13 PM EDTTornado WarningLWXSaint Mary's47 min
May 8, 11:55 AM EDTSevere Thunderstorm WarningLWXPrince George's50 min
May 8, 12:36 PM EDTSevere Thunderstorm WarningLWXSaint Mary's54 min
May 8, 12:41 PM EDTSevere Thunderstorm WarningLWXCalvert49 min

Nearby

Tornado Warnings in Maryland, 2003Every tornado warning in 2003Tornadoes in 2003

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.