Alert archive / Maryland / Tornado Warnings in 2004

Tornado Warning 3, NWS Philadelphia/Mount Holly

July 12, 2004Cecil County, Maryland

NWS Philadelphia/Mount Holly issued this tornado warning at Jul 12, 2004, 1:17 PM EDT for Cecil County, Maryland. 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 as issued.

The facts

Issued: Jul 12, 2004, 1:17 PM EDT (17:17 UTC)
Expired: Jul 12, 2004, 2:00 PM EDT
In force: 43 min
Issued by: NWS Philadelphia/Mount Holly
Area: Counties, with a storm outline in the text

County Cecil County, MD

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 5.3 hours before the alert went out and 10 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 76 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 902 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 143 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS51 KPHI 121717
TORPHI
MDC015-121800-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
117 PM EDT MON JUL 12 2004

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN CECIL COUNTY IN NORTHEAST MARYLAND

* UNTIL 200 PM EDT

* AT 112 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES
  SOUTHWEST OF NORTH EAST...OR ABOUT 19 MILES SOUTHWEST OF NEWARK...
  MOVING EAST AT 15 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  7 MILES SOUTH OF NORTH EAST BY 130 PM EDT
  7 MILES SOUTH OF ELKTON BY 155 PM EDT

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 3954 7615 3945 7614 3943 7579 3964 7581

$$

JJM

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 12, 7:50 AM EDT	Flash Flood Warning	PHI	Cecil	68 days
Jul 12, 8:28 AM EDT	Flash Flood Warning	PHI	Cecil, Kent, Queen Anne's	78 days
Jul 12, 1:09 PM EDT	Severe Thunderstorm Warning	PHI	Cecil	51 min
Jul 12, 2:52 PM EDT	Flash Flood Warning	PHI	Cecil	78 days
Jul 12, 4:49 PM EDT	Flash Flood Warning	PHI	Cecil	78 days
Jul 12, 5:26 PM EDT	Severe Thunderstorm Warning	PHI	Talbot	49 min
Jul 12, 5:45 PM EDT	Flash Flood Warning	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	78 days
Jul 12, 6:51 PM EDT	Flash Flood Warning	PHI	Cecil	78 days

Nearby

Tornado Warnings in Maryland, 2004 Every tornado warning in 2004 Tornadoes in 2004

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.