Alert archive / Maryland / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 183, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 16, 2016, 5:37 PM EDT for Cecil County, Maryland. It was in force for 38 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
- Aug 16, 2016, 5:37 PM EDT (21:37 UTC)
- Expired
- Aug 16, 2016, 6:15 PM EDT
- In force
- 38 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Cecil County, MD
The radar
The Dover AFB radar (KDOX), 99 km from the middle of the area, began a volume at 21:38 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 16, 3:20 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 9.6 hours before the alert went out and 135 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
- 364 J/kg
- Mixed-layer CIN
- -175 J/kg
- Mixed-layer LCL
- 773 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
352
WUUS51 KPHI 162137
SVRPHI
MDC015-162215-
/O.NEW.KPHI.SV.W.0183.160816T2137Z-160816T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
537 PM EDT TUE AUG 16 2016
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CECIL COUNTY IN NORTHEASTERN MARYLAND...
* UNTIL 615 PM EDT
* AT 536 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
WOODLAWN...OR NEAR HAVRE DE GRACE...MOVING EAST AT 40 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
* LOCATIONS IMPACTED INCLUDE...
ELKTON...CALVERT...NORTH EAST...RISING SUN...CHARLESTOWN...
CECILTON...CAYOTS...ROCK SPRINGS...PLEASANT HILL...BLAKE...
ANDORA...RICHARDSMERE...WOODLAWN...HOLLYWOOD BEACH...APPLETON...
CHERRY HILL...BAY VIEW...LOMBARD...OCTORARO AND FARMINGTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
HEAVY RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO
POOR DRAINAGE FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 3972 7623 3972 7579 3940 7578 3938 7605
3942 7600 3952 7598 3955 7603 3955 7608
3959 7611 3964 7616 3965 7616 3966 7618
TIME...MOT...LOC 2136Z 254DEG 36KT 3959 7607
HAIL...<.75IN
WIND...60MPH
$$
JJM1 follow-up statement
244
WWUS51 KPHI 162202
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
602 PM EDT TUE AUG 16 2016
MDC015-162215-
/O.CON.KPHI.SV.W.0183.000000T0000Z-160816T2215Z/
CECIL MD-
602 PM EDT TUE AUG 16 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR CENTRAL CECIL COUNTY...
AT 601 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER HAVRE DE
GRACE... MOVING NORTHEAST AT 15 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
LOCATIONS IMPACTED INCLUDE...
CALVERT...NORTH EAST...RISING SUN...CHARLESTOWN...ROCK SPRINGS...
PLEASANT HILL...BLAKE...ANDORA...FARMINGTON...RICHARDSMERE...
CONOWINGO...WEST NOTTINGHAM...FAIR HILL...WOODLAWN...
HOLLYWOOD BEACH...CHERRY HILL...BAY VIEW...LOMBARD...
OCTORARO AND ZION.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3972 7623 3972 7584 3949 7589 3944 7600
3952 7598 3955 7603 3955 7608 3959 7611
3964 7616 3965 7616 3966 7618
TIME...MOT...LOC 2201Z 235DEG 32KT 3956 7608
HAIL...<.75IN
WIND...60MPH
$$
JJMThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 8:36 PM EDT | Special Weather Statement | PHI | Talbot | 39 min |
| Aug 15, 9:22 PM EDT | Special Weather Statement | PHI | Caroline | 53 min |
| Aug 15, 10:44 PM EDT | Special Weather Statement | PHI | Queen Anne's | 61 min |
| Aug 16, 5:08 PM EDT | Special Weather Statement | PHI | Cecil | 52 min |
| Aug 16, 6:31 PM EDT | Special Weather Statement | PHI | Cecil | 29 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2016Every severe thunderstorm warning in 2016
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; radar from the NEXRAD Level II archive.