Alert archive / Delaware / Tornado Warnings in 2020
Tornado Warning 3, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this tornado warning at Apr 13, 2020, 3:45 PM EDT for Kent County, Delaware. It was in force for 15 min. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 13, 2020, 3:45 PM EDT (19:45 UTC)
- Expired
- Apr 13, 2020, 4:00 PM EDT
- In force
- 15 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Kent County, DE
The radar
The Dover AFB radar (KDOX), 30 km from the middle of the area, began a volume at 19:45 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 |
|---|---|---|---|
| Apr 13, 3:45 PM EDT | TSTM WND DMG | 1 Ese Woodside, DE | DOWNED TREES AND WIRES FROM SEVERE STORM WIND GUSTS. TIME BASED ON INITIAL REPORT FROM THE UTILITY COMPANY. |
| Apr 13, 3:49 PM EDT | TSTM WND GST 64 | Dover Afb (Kdov), DE | DELAYED REPORT. |
| Apr 13, 3:50 PM EDT | TSTM WND DMG | 3 Nne Magnolia, DE | DOWNED TREE ON STATE HIGHWAY 1 JUST SOUTH OF DOVER AFB. TIME ESTIMATED BASED ON RADAR AND NEARBY REPORTS. |
| Apr 13, 3:50 PM EDT | TSTM WND GST 79 | 1 Ne Magnolia, DE | DEDOT GAUGE. |
| Apr 13, 3:55 PM EDT | TSTM WND GST 68 | 2 Wsw Kitts Hummock, DE | MEASURED 68 MPH GUST AT KITTS HUMMOCK (DE030). |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 13, 11:33 AM EDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 7.8 hours before the alert went out and 129 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 702 m above ground
- 0-6 km bulk shear
- 83 kt
- 0-1 km storm-relative helicity
- 570 m²/s²
- 0-3 km storm-relative helicity
- 696 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted.
860
WFUS51 KPHI 131945
TORPHI
DEC001-132000-
/O.NEW.KPHI.TO.W.0003.200413T1945Z-200413T2000Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
345 PM EDT Mon Apr 13 2020
The National Weather Service in Mount Holly NJ has issued a
* Tornado Warning for...
Central Kent County in central Delaware...
* Until 400 PM EDT.
* At 345 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Woodside, or near Dover, moving east at 50 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations impacted include...
Dover, Camden, Woodside, Viola, Rising Sun-Lebanon, Rising Sun,
Dover Base Housing, Wyoming, Magnolia, Little Creek, Rodney
Village, Kent Acres, Highland Acres, Woodside East and Riverview.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3903 7558 3911 7561 3919 7540 3909 7529
TIME...MOT...LOC 1945Z 261DEG 43KT 3908 7554
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
BAH3 follow-up statements
816
WWUS51 KPHI 131948
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
348 PM EDT Mon Apr 13 2020
DEC001-132000-
/O.CON.KPHI.TO.W.0003.000000T0000Z-200413T2000Z/
Kent DE-
348 PM EDT Mon Apr 13 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM EDT FOR CENTRAL
KENT COUNTY...
At 348 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Rising Sun-Lebanon, or near Dover, moving east at 50
mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Dover, Camden, Dover Base Housing, Rising Sun-Lebanon, Rising Sun,
Wyoming, Magnolia, Little Creek, Highland Acres, Rodney Village,
Woodside East and Kent Acres.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3905 7554 3912 7557 3919 7540 3912 7536
3907 7538
TIME...MOT...LOC 1948Z 261DEG 43KT 3909 7549
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
BAH697
WWUS51 KPHI 131953
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
353 PM EDT Mon Apr 13 2020
DEC001-132000-
/O.CON.KPHI.TO.W.0003.000000T0000Z-200413T2000Z/
Kent DE-
353 PM EDT Mon Apr 13 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM EDT FOR EAST
CENTRAL KENT COUNTY...
At 353 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Bowers, or 7 miles southeast of Dover, moving east
at 50 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Dover and Little Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3916 7547 3919 7540 3912 7536 3907 7538
3906 7545
TIME...MOT...LOC 1953Z 261DEG 43KT 3910 7541
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
BAH850
WWUS51 KPHI 131958
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
358 PM EDT Mon Apr 13 2020
DEC001-132008-
/O.EXP.KPHI.TO.W.0003.000000T0000Z-200413T2000Z/
Kent DE-
358 PM EDT Mon Apr 13 2020
...THE TORNADO WARNING FOR EAST CENTRAL KENT COUNTY WILL EXPIRE AT
400 PM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. Special Marine
Warning 19 is still in effect for a possible waterspout.
A Tornado Watch remains in effect until 600 PM EDT for central
Delaware.
LAT...LON 3916 7547 3919 7540 3912 7536 3907 7538
3906 7545
TIME...MOT...LOC 1958Z 261DEG 43KT 3911 7534
$$
BAHThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 3:43 AM EDT | Coastal Flood Statement | PHI | Sussex | 17 hr |
| Apr 13, 5:12 AM EDT | Special Weather Statement | PHI | Kent, New Castle | 33 min |
| Apr 13, 5:41 AM EDT | Special Weather Statement | PHI | New Castle | 34 min |
| Apr 13, 5:44 AM EDT | Special Weather Statement | PHI | Kent, Sussex | 31 min |
| Apr 13, 6:11 AM EDT | Areal Flood Advisory | PHI | New Castle | 4 hr |
| Apr 13, 6:17 AM EDT | Special Weather Statement | PHI | Kent, New Castle | 28 min |
| Apr 13, 6:42 AM EDT | Areal Flood Advisory | PHI | Kent, New Castle | 4 hr |
| Apr 13, 6:48 AM EDT | Areal Flood Advisory | PHI | New Castle | 4 hr |
| Apr 13, 11:25 AM EDT | River Flood Warning | PHI | New Castle | 4 hr |
| Apr 13, 12:13 PM EDT | River Flood Warning | PHI | New Castle | 3 hr |
| Apr 13, 2:41 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 64 min |
| Apr 13, 3:22 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 38 min |
| Apr 13, 3:26 PM EDT | Tornado Warning | PHI | Kent | 13 min |
| Apr 13, 3:40 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 65 min |
Nearby
Tornado Warnings in Delaware, 2020Every tornado warning in 2020Tornadoes in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.