Alert archive / Delaware / Tornado Warnings in 2004
Tornado Warning 11, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this tornado warning at Sep 28, 2004, 4:11 PM EDT for New Castle County, Delaware; Salem County, New Jersey. It was in force for 34 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
- Sep 28, 2004, 4:11 PM EDT (20:11 UTC)
- Expired
- Sep 28, 2004, 4:45 PM EDT
- In force
- 34 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
Counties New Castle County, DE, Salem County, NJ
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 28, 2:25 PM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 8.2 hours before the alert went out and 47 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
- 95 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 631 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 172 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS51 KPHI 282011 TORPHI DEC003-NJC033-282045- /X.NEW.KPHI.TO.W.0001.040928T2011Z-040928T2045Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 411 PM EDT TUE SEP 28 2004 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS UPGRADED THE SEVERE THUNDERSTORM WARNING TO A * TORNADO WARNING FOR... NORTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE THIS INCLUDES THE CITY OF WILMINGTON NORTHWESTERN SALEM COUNTY IN SOUTHERN NEW JERSEY * UNTIL 445 PM EDT * AT 358 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR NEW CASTLE...OR ABOUT 8 MILES SOUTHEAST OF NEWARK...MOVING NORTH AT 25 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... BELLEFONTE BY 425 PM EDT TALLEYVILLE BY 430 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. A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT TUESDAY EVENING FOR SOUTHWESTERN DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN NEW JERSEY AND SOUTHEAST PENNSYLVANIA. LAT...LON 3962 7574 3960 7551 3982 7549 3981 7568 $$ TFG
1 follow-up statement
000 WFUS51 KPHI 282014 CCA TORPHI DEC003-282045- /X.NEW.KPHI.TO.W.0001.040928T2011Z-040928T2045Z/ BULLETIN - EAS ACTIVATION REQUESTED...CORRECTED TORNADO WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 411 PM EDT TUE SEP 28 2004 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS UPGRADED THE SEVERE THUNDERSTORM WARNING TO A * TORNADO WARNING FOR... NORTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE THIS INCLUDES THE CITY OF WILMINGTON * UNTIL 445 PM EDT * AT 358 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR NEW CASTLE...OR ABOUT 8 MILES SOUTHEAST OF NEWARK...MOVING NORTH AT 25 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... BELLEFONTE BY 425 PM EDT TALLEYVILLE BY 430 PM EDT THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT TUESDAY EVENING FOR SOUTHWESTERN DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN NEW JERSEY AND SOUTHEAST PENNSYLVANIA. LAT...LON 3962 7574 3960 7551 3982 7549 3981 7568 $$ TFG/CORRECTED TO REMOVE SALEM COUNTY
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 28, 2:12 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 63 min |
| Sep 28, 2:36 PM EDT | Flash Flood Warning | PHI | Kent, New Castle | 3 hr |
| Sep 28, 3:14 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 46 min |
| Sep 28, 4:01 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 44 min |
| Sep 28, 4:41 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 79 min |
| Sep 28, 5:30 PM EDT | Flash Flood Warning | PHI | Kent, New Castle, Sussex | 3 hr |
| Sep 28, 12:48 PM EDT | Flash Flood Warning | PHI | Sussex, Warren | 3 hr |
| Sep 28, 4:44 PM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more | 4 hr |
| Sep 28, 7:37 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth | 53 min |
| Sep 28, 7:41 PM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 2 more | 6 hr |
Nearby
Tornado Warnings in Delaware, 2004Tornado Warnings in New Jersey, 2004Every tornado warning in 2004Tornadoes 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.