Alert archive / Maryland / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 117, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 2, 2019, 5:46 PM EDT for New Castle County, Delaware; Chester County, Pennsylvania; Cecil County, Kent County, Maryland. It was in force for 44 min. 9 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
- Jun 2, 2019, 5:46 PM EDT (21:46 UTC)
- Expired
- Jun 2, 2019, 6:30 PM EDT
- In force
- 44 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties New Castle County, DE, Cecil County, MD, Kent County, MD, Chester County, PA
The radar
The Dover AFB radar (KDOX), 100 km from the middle of the area, began a volume at 21:50 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 2, 6:02 PM EDT | HAIL 0.75 | Lincoln University, PA | |
| Jun 2, 6:08 PM EDT | HAIL 0.25 | 1 Se New London Twp., PA | MPING REPORT. |
| Jun 2, 6:14 PM EDT | HAIL 0.25 | 1 S West Grove, PA | |
| Jun 2, 6:16 PM EDT | TSTM WND DMG | West Grove, PA | DOWNED TREES NEAR AND ON THE RAILROAD TRACKS NEAR RAILROAD AVENUE AND OAKLAND AVENUE. TIME ESTIMATED FROM RADAR. |
| Jun 2, 6:19 PM EDT | HAIL 0.25 | 1 Se West Grove, PA | |
| Jun 2, 6:30 PM EDT | HAIL 0.25 | 2 S Odessa, DE | MPING REPORT. |
| Jun 2, 6:36 PM EDT | TSTM WND DMG | Woodshade, DE | DOWNED WIRES ON CEDAR RIDGE COURT. TIME ESTIMATED FROM RADAR. |
| Jun 2, 6:39 PM EDT | TSTM WND DMG | 1 Ese Woodshade, DE | SMALLEYS DAM ROAD CLOSED BETWEEN RIVERS END DRIVE AND WOLF DRIVE FROM DOWNED WIRES. TIME ESTIMATED FROM RADAR. |
| Jun 2, 6:39 PM EDT | TSTM WND DMG | 2 E Woodshade, DE | TREES DOWN AT THE CHRISTIANA MEADOWS APARTMENT COMPLEX. |
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 |
|---|---|---|---|
| Jun 2, 3:05 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 9.8 hours before the alert went out and 143 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1413 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
949
WUUS51 KPHI 022146
SVRPHI
DEC003-MDC015-029-PAC029-022230-
/O.NEW.KPHI.SV.W.0117.190602T2146Z-190602T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
546 PM EDT Sun Jun 2 2019
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
New Castle County in northern Delaware...
Northeastern Kent County in northeastern Maryland...
Cecil County in northeastern Maryland...
Western Chester County in southeastern Pennsylvania...
* Until 630 PM EDT.
* At 546 PM EDT, severe thunderstorms were located along a line
extending from near Delta to near Betterton, moving northeast at 45
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...
Newark, Middletown, Elkton, Calvert, Coatesville, Kennett Square,
Chestertown, Oxford, Parkesburg, North East, West Grove, Rising
Sun, Honey Brook, Delaware City, Elverson, Charlestown, Cecilton,
Betterton, Glen Roy and Blake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3973 7610 3976 7606 3987 7599 3995 7600
4004 7593 4009 7594 4017 7582 3951 7558
3946 7559 3938 7553 3922 7610 3933 7617
3933 7614 3937 7611 3937 7606 3942 7600
3952 7598 3955 7603 3955 7608 3972 7623
TIME...MOT...LOC 2146Z 227DEG 38KT 3974 7637 3933 7609
HAIL...1.00IN
WIND...60MPH
$$
Davis2 follow-up statements
373
WWUS51 KPHI 022204
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
604 PM EDT Sun Jun 2 2019
DEC003-MDC015-029-PAC029-022230-
/O.CON.KPHI.SV.W.0117.000000T0000Z-190602T2230Z/
New Castle DE-Kent MD-Cecil MD-Chester PA-
604 PM EDT Sun Jun 2 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NEW CASTLE...NORTHEASTERN KENT...CECIL AND WESTERN CHESTER
COUNTIES...
At 604 PM EDT, severe thunderstorms were located along a line
extending from Richardsmere to Massey, moving northeast at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Newark, Middletown, Elkton, Calvert, Coatesville, Kennett Square,
Chestertown, Oxford, Parkesburg, North East, West Grove, Rising Sun,
Honey Brook, Delaware City, Elverson, Charlestown, Cecilton,
Betterton, Glen Roy and Blake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3973 7610 3976 7606 3987 7599 3995 7600
4004 7593 4009 7594 4017 7582 3951 7558
3946 7559 3938 7553 3922 7610 3933 7617
3933 7614 3937 7611 3937 7606 3942 7600
3952 7598 3955 7603 3955 7608 3972 7623
TIME...MOT...LOC 2204Z 239DEG 36KT 3971 7610 3930 7583
HAIL...1.00IN
WIND...60MPH
$$
SFJ036
WWUS51 KPHI 022222
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
622 PM EDT Sun Jun 2 2019
DEC003-MDC015-029-PAC029-022231-
/O.EXP.KPHI.SV.W.0117.000000T0000Z-190602T2230Z/
New Castle DE-Kent MD-Cecil MD-Chester PA-
622 PM EDT Sun Jun 2 2019
...THE SEVERE THUNDERSTORM WARNING FOR NEW CASTLE...NORTHEASTERN
KENT...CECIL AND WESTERN CHESTER COUNTIES WILL EXPIRE AT 630 PM
EDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However small hail
and heavy rain are still possible with these thunderstorms.
A severe thunderstorm watch remains in effect until 1000 PM EDT for
northern Delaware...northeastern Maryland...and southeastern
Pennsylvania.
LAT...LON 3973 7610 3976 7606 3987 7599 3995 7600
4004 7593 4009 7594 4017 7582 3951 7558
3946 7559 3938 7553 3922 7610 3933 7617
3933 7614 3937 7611 3937 7606 3942 7600
3952 7598 3955 7603 3955 7608 3972 7623
TIME...MOT...LOC 2221Z 227DEG 38KT 3983 7594 3942 7567
$$
SFJThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 2, 2:40 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 50 min |
| Jun 2, 3:18 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 42 min |
| Jun 2, 6:24 PM EDT | Special Weather Statement | PHI | New Castle | 36 min |
| Jun 2, 6:43 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 47 min |
| Jun 2, 7:36 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 39 min |
| Jun 2, 2:32 PM EDT | Special Weather Statement | PHI | Delaware | 28 min |
| Jun 2, 3:15 PM EDT | Special Weather Statement | PHI | Philadelphia | 30 min |
| Jun 2, 3:21 PM EDT | Severe Thunderstorm Warning | PHI | Philadelphia | 39 min |
| Jun 2, 3:55 PM EDT | Special Weather Statement | PHI | Delaware | 35 min |
| Jun 2, 4:01 PM EDT | Special Weather Statement | PHI | Bucks | 29 min |
| Jun 2, 4:29 PM EDT | Special Weather Statement | PHI | Bucks, Montgomery, Philadelphia | 31 min |
| Jun 2, 6:53 PM EDT | Special Weather Statement | PHI | Berks | 37 min |
| Jun 2, 7:11 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Montgomery | 49 min |
| Jun 2, 7:34 PM EDT | Special Weather Statement | PHI | Philadelphia | 26 min |
| Jun 2, 7:56 PM EDT | Special Weather Statement | PHI | Bucks | 34 min |
| Jun 2, 7:08 PM EDT | Special Weather Statement | PHI | Kent, Queen Anne's | 37 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2019Severe Thunderstorm Warnings in Delaware, 2019Severe Thunderstorm Warnings in Pennsylvania, 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.