Alert archive / Maryland / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 114, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 18, 2016, 4:37 PM EDT for 4 counties in Maryland; Kent County, New Castle County, Delaware; Salem County, New Jersey. It was in force for 38 min. 1 report 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
- Jul 18, 2016, 4:37 PM EDT (20:37 UTC)
- Expired
- Jul 18, 2016, 5:15 PM EDT
- In force
- 38 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Kent County, DE, New Castle County, DE, Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 70 km from the middle of the area, began a volume at 20:38 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 18, 5:00 PM EDT | TSTM WND DMG | Church Hill, MD | TREES DOWN. 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 |
|---|---|---|---|
| Jul 18, 1:42 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 8.6 hours before the alert went out and 149 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
- 200 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 1480 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
496
WUUS51 KPHI 182037
SVRPHI
DEC001-003-MDC011-015-029-035-NJC033-182115-
/O.NEW.KPHI.SV.W.0114.160718T2037Z-160718T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
437 PM EDT MON JUL 18 2016
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN NEW CASTLE COUNTY IN NORTHERN DELAWARE...
NORTHERN KENT COUNTY IN CENTRAL DELAWARE...
KENT COUNTY IN NORTHEASTERN MARYLAND...
SOUTHEASTERN CECIL COUNTY IN NORTHEASTERN MARYLAND...
NORTHEASTERN QUEEN ANNE'S COUNTY IN NORTHEASTERN MARYLAND...
NORTHERN CAROLINE COUNTY IN EASTERN MARYLAND...
SOUTHWESTERN SALEM COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 515 PM EDT
* AT 436 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
CHESTERTOWN... OR 14 MILES SOUTH OF ABERDEEN PROVING
GROUND...MOVING EAST AT 40 MPH.
HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
* LOCATIONS IMPACTED INCLUDE...
DOVER...MIDDLETOWN...SMYRNA...CHESTERTOWN...CAMDEN...CLAYTON...
DELAWARE CITY...CHESWOLD...ROCK HALL...CHURCH HILL...CECILTON...
MILLINGTON...SUDLERSVILLE...BETTERTON...HARTLY...BOHEMIAS MILLS...
DELANEY CORNER...WARWICK...HOLLYWOOD BEACH AND MASSEY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3926 7622 3929 7617 3932 7618 3942 7600
3951 7598 3960 7561 3959 7556 3958 7556
3958 7558 3951 7558 3949 7553 3952 7553
3945 7550 3949 7555 3949 7559 3946 7559
3927 7541 3912 7541 3910 7624 3915 7628
TIME...MOT...LOC 2036Z 282DEG 33KT 3926 7609
HAIL...0.88IN
WIND...60MPH
$$
PO1 follow-up statement
205
WWUS51 KPHI 182104
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
504 PM EDT MON JUL 18 2016
DEC001-003-MDC011-015-029-035-NJC033-182115-
/O.CON.KPHI.SV.W.0114.000000T0000Z-160718T2115Z/
NEW CASTLE DE-KENT DE-KENT MD-CECIL MD-QUEEN ANNE'S MD-CAROLINE MD-
SALEM NJ-
504 PM EDT MON JUL 18 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR SOUTHWESTERN NEW CASTLE...NORTHERN KENT...CENTRAL KENT...
SOUTHEASTERN CECIL...NORTHEASTERN QUEEN ANNE'S...NORTHERN CAROLINE
AND SOUTHWESTERN SALEM COUNTIES...
AT 504 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER BOHEMIAS
MILLS... OR NEAR MIDDLETOWN...MOVING EAST AT 30 MPH.
HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
LOCATIONS IMPACTED INCLUDE...
DOVER...MIDDLETOWN...SMYRNA...CHESTERTOWN...CAMDEN...CLAYTON...
DELAWARE CITY...CHESWOLD...CHURCH HILL...CECILTON...MILLINGTON...
SUDLERSVILLE...HARTLY...OLD TOWN...CAYOTS...KENNEDYVILLE...
BOHEMIAS MILLS...DELANEY CORNER...WARWICK AND HOLLYWOOD BEACH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3914 7623 3939 7599 3951 7598 3960 7561
3959 7556 3958 7558 3951 7558 3949 7553
3952 7553 3945 7550 3949 7555 3949 7559
3946 7559 3927 7541 3912 7541 3910 7624
TIME...MOT...LOC 2104Z 272DEG 24KT 3948 7580
HAIL...0.88IN
WIND...60MPH
$$
POThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 4:04 PM EDT | Special Weather Statement | PHI | Cecil | 56 min |
| Jul 18, 4:15 PM EDT | Areal Flood Advisory | PHI | Cecil | 2 hr |
| Jul 18, 5:18 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 57 min |
| Jul 18, 4:14 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 46 min |
| Jul 18, 5:22 PM EDT | Special Weather Statement | PHI | New Castle | 53 min |
| Jul 18, 4:04 AM EDT | Small Craft Advisory | PHI | 12 hr | |
| Jul 18, 2:42 PM EDT | Special Weather Statement | PHI | Sussex | 63 min |
| Jul 18, 2:51 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 39 min |
| Jul 18, 3:25 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 50 min |
| Jul 18, 3:41 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 49 min |
| Jul 18, 4:07 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Morris, Somerset | 38 min |
| Jul 18, 4:47 PM EDT | Special Marine Warning | PHI | 88 min | |
| Jul 18, 4:47 PM EDT | Special Weather Statement | PHI | Burlington, Camden | 43 min |
| Jul 18, 5:00 PM EDT | Special Marine Warning | PHI | 60 min | |
| Jul 18, 5:07 PM EDT | Special Marine Warning | PHI | 83 min | |
| Jul 18, 5:49 PM EDT | Special Marine Warning | PHI | 116 min | |
| Jul 18, 5:51 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 24 min |
| Jul 18, 6:05 PM EDT | Special Marine Warning | PHI | 85 min | |
| Jul 18, 6:23 PM EDT | Special Marine Warning | PHI | 97 min | |
| Jul 18, 7:43 PM EDT | Special Weather Statement | PHI | Sussex | 47 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2016Severe Thunderstorm Warnings in Delaware, 2016Severe Thunderstorm Warnings in New Jersey, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.