Alert archive / Delaware / Tornado Warnings in 1998
Tornado Warning 11, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this tornado warning at Jun 26, 1998, 6:26 PM EDT for Sussex County, Delaware. It was in force for 49 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 26, 1998, 6:26 PM EDT (22:26 UTC)
- Expired
- Jun 26, 1998, 7:15 PM EDT
- In force
- 49 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
County Sussex County, DE
The radar
The Dover AFB radar (KDOX), 18 km from the middle of the area, began a volume at 22:26 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 26, 6:36 PM EDT | Thunderstorm Wind 50 | Greenwood, DE |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 26, 2:15 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 10.4 hours before the alert went out and 84 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
- 1797 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 939 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
558 WFUS1 KPHL 262227 RRA TORPHL DEC005-262315- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 626 PM EDT FRI JUN 26 1998 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * TORNADO WARNING FOR... NORTHERN SUSSEX COUNTY IN DELAWARE * UNTIL 715 PM EDT * AT 624 PM EDT... AN OFF DUTY METEOROLOGIST SPOTTED A FUNNEL CLOUD WORKING ITS WAY TO THE GROUND JUST WEST OF GREENWOOD. IT IS MOVING EAST AT 25 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... ELLENDALE AT 630 PM EDT DO NOT TRY TO OUTRUN THIS TORNADO WITH YOUR CAR OR OTHER VEHICLE. ABANDON CARS OR MOBILE HOMES FOR SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...GET IN A CULVERT OR DITCH AND COVER YOUR HEAD WITH YOUR HANDS. IN A HOME OR BUSINESS...SEEK SHELTER IN A BASEMENT...OR AN INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. STAY AWAY FROM WINDOWS. FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER RADIO...YOUR LOCAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE TELEVISION OUTLET. WN/TG
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 4:48 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 47 min |
| Jun 26, 5:40 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 35 min |
| Jun 26, 6:19 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 46 min |
Nearby
Tornado Warnings in Delaware, 1998Every tornado warning in 1998Tornadoes in 1998
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.