Alert archive / Delaware / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 98, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 29, 2019, 6:11 PM EDT for Kent County, New Castle County, Delaware; Cecil County, Kent County, Maryland. It was in force for 34 min. 4 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
- May 29, 2019, 6:11 PM EDT (22:11 UTC)
- Expired
- May 29, 2019, 6:45 PM EDT
- In force
- 34 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Kent County, DE, New Castle County, DE, Cecil County, MD, Kent County, MD
The radar
The Dover AFB radar (KDOX), 72 km from the middle of the area, began a volume at 22:09 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 |
|---|---|---|---|
| May 29, 6:22 PM EDT | TSTM WND DMG | 2 Wsw Kennedyville, MD | LARGE EQUESTRIAN ARENA BARN DAMAGED AND NUMEROUS TREES DOWN ON STILL POND ROAD. WINDS ESTIMATED BETWEEN 65 AND 75 MPH. DELAYED REPORT FROM WEDNESDAY EVENING. |
| May 29, 6:25 PM EDT | TSTM WND DMG | 2 Sw Kennedyville, MD | NUMEROUS TREES DOWN ON STILL POND ROAD. |
| May 29, 6:45 PM EDT | TSTM WND DMG | Odessa, DE | CORRECTS PREVIOUS TSTM WND DMG REPORT FROM ODESSA. TREE REPORTED DOWN IN ODESSA. TIME ESTIMATED FROM RADAR. |
| May 29, 6:50 PM EDT | TSTM WND DMG | Odessa, DE | TREE REPORTED DOWN IN ODESSA. TIME ESTIMATED FROM RADAR. |
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 |
|---|---|---|---|
| May 29, 1:10 PM EDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 10.2 hours before the alert went out and 137 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
- 292 J/kg
- Mixed-layer CIN
- -123 J/kg
- Mixed-layer LCL
- 1463 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
780
WUUS51 KPHI 292211
SVRPHI
DEC001-003-MDC015-029-292245-
/O.NEW.KPHI.SV.W.0098.190529T2211Z-190529T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
611 PM EDT Wed May 29 2019
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southwestern New Castle County in northern Delaware...
Northwestern Kent County in central Delaware...
Kent County in northeastern Maryland...
Southeastern Cecil County in northeastern Maryland...
* Until 645 PM EDT.
* At 610 PM EDT, a severe thunderstorm was located near Newtown, or 9
miles east of Middle River, moving east at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to
roofs, siding, trees, and power lines is possible.
* Locations impacted include...
Middletown, Smyrna, Chestertown, Clayton, Cecilton, Millington,
Betterton, Warwick, Bohemias Mills, Newtown, Port Penn, Morgnec,
Delaney Corner, Sassafras, Mount Pleasant, Green Spring, Cayots,
Massey, Hollywood Beach and Kennedyville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect until 800 PM EDT for northern
Delaware...and northeastern Maryland.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3921 7624 3928 7620 3929 7617 3932 7618
3934 7616 3933 7614 3937 7611 3937 7606
3942 7600 3951 7598 3956 7557 3951 7556
3950 7559 3946 7559 3933 7549 3934 7548
3927 7545 3926 7587
TIME...MOT...LOC 2210Z 264DEG 44KT 3934 7625
HAIL...1.00IN
WIND...60MPH
$$
NC2 follow-up statements
573
WWUS51 KPHI 292236
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
636 PM EDT Wed May 29 2019
DEC001-003-MDC015-029-292245-
/O.CON.KPHI.SV.W.0098.000000T0000Z-190529T2245Z/
New Castle DE-Kent DE-Kent MD-Cecil MD-
636 PM EDT Wed May 29 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR SOUTHWESTERN NEW CASTLE...NORTHWESTERN KENT...NORTHEASTERN KENT
AND SOUTHEASTERN CECIL COUNTIES...
At 636 PM EDT, a severe thunderstorm was located over Sassafras, or 8
miles southwest of Middletown, moving east at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Middletown, Smyrna, Clayton, Cecilton, Millington, Betterton,
Warwick, Sassafras, Mount Pleasant, Green Spring, Bohemias Mills,
Port Penn, Morgnec, Delaney Corner, Cayots, Massey, Hollywood Beach,
Kennedyville, Townsend and Chesapeake City.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect until 800 PM EDT for northern
Delaware...and northeastern Maryland.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3937 7611 3937 7606 3942 7600 3951 7598
3956 7557 3951 7556 3950 7559 3946 7559
3933 7549 3934 7548 3927 7545 3926 7587
3924 7601
TIME...MOT...LOC 2236Z 264DEG 44KT 3937 7584
HAIL...1.00IN
WIND...60MPH
$$
NC623
WWUS51 KPHI 292240
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
640 PM EDT Wed May 29 2019
DEC001-003-MDC015-029-292250-
/O.EXP.KPHI.SV.W.0098.000000T0000Z-190529T2245Z/
New Castle DE-Kent DE-Kent MD-Cecil MD-
640 PM EDT Wed May 29 2019
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN NEW CASTLE...
NORTHWESTERN KENT...NORTHEASTERN KENT AND SOUTHEASTERN CECIL COUNTIES
WILL EXPIRE AT 645 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with this thunderstorm.
A tornado watch remains in effect until 800 PM EDT for northern
Delaware...and northeastern Maryland.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 3937 7611 3937 7606 3942 7600 3951 7598
3956 7557 3951 7556 3950 7559 3946 7559
3933 7549 3934 7548 3927 7545 3926 7587
3924 7601
TIME...MOT...LOC 2240Z 264DEG 44KT 3937 7587
$$
NCThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 3:18 AM EDT | Flash Flood Watch | PHI | New Castle | 18 hr |
| May 29, 5:49 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 41 min |
| May 29, 6:02 PM EDT | Special Weather Statement | PHI | New Castle | 28 min |
| May 29, 6:22 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 53 min |
| May 29, 6:30 PM EDT | Special Weather Statement | PHI | Kent | 30 min |
| May 29, 6:35 PM EDT | Flash Flood Warning | PHI | New Castle | 3 hr |
| May 29, 6:58 PM EDT | Special Weather Statement | PHI | Kent | 32 min |
| May 29, 7:12 PM EDT | Areal Flood Advisory | PHI | New Castle | 3 hr |
Nearby
Severe Thunderstorm Warnings in Delaware, 2019Severe Thunderstorm Warnings in Maryland, 2019Every severe thunderstorm warning in 2019
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.