Alert archive / Maryland / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 115, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 18, 2016, 5:18 PM EDT for Kent County, New Castle County, Delaware; Caroline County, Kent County, Queen Anne's County, Maryland. It was in force for 57 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, 5:18 PM EDT (21:18 UTC)
- Expired
- Jul 18, 2016, 6:15 PM EDT
- In force
- 57 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Kent County, DE, New Castle County, DE, Caroline County, MD, Kent County, MD, Queen Anne's County, MD
The radar
The Dover AFB radar (KDOX), 50 km from the middle of the area, began a volume at 21:20 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, 5:30 PM EDT | TSTM WND DMG | 2 S Hartly, DE | A FEW TREES DOWN. TIMES 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
Wallops Is Stn, VA (KWAL), launched 12:00Z, 9.3 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
- 726 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1135 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
096
WUUS51 KPHI 182118
SVRPHI
DEC001-003-MDC011-029-035-182215-
/O.NEW.KPHI.SV.W.0115.160718T2118Z-160718T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
518 PM EDT MON JUL 18 2016
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTH CENTRAL NEW CASTLE COUNTY IN NORTHERN DELAWARE...
NORTHERN KENT COUNTY IN CENTRAL DELAWARE...
NORTHEASTERN QUEEN ANNE'S COUNTY IN NORTHEASTERN MARYLAND...
NORTHEASTERN CAROLINE COUNTY IN EASTERN MARYLAND...
EAST CENTRAL KENT COUNTY IN NORTHEASTERN MARYLAND...
* UNTIL 615 PM EDT
* AT 517 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
SUDLERSVILLE... OR 15 MILES NORTHEAST OF CENTERVILLE...MOVING EAST
AT 35 MPH.
HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
* LOCATIONS IMPACTED INCLUDE...
DOVER...SMYRNA...CAMDEN...CLAYTON...CHESWOLD...MILLINGTON...
SUDLERSVILLE...BOWERS...GOLDSBORO...WOODSIDE...VIOLA...HARTLY...
DELANEY CORNER...RISING SUN...HAZLETTVILLE...DOVER SPEEDWAY...
WOODLAND BEACH...GREEN SPRING...DOVER BASE HOUSING AND CRUMPTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
&&
LAT...LON 3926 7594 3936 7547 3935 7546 3937 7543
3936 7543 3935 7544 3935 7545 3931 7541
3914 7537 3905 7537 3903 7591
TIME...MOT...LOC 2117Z 264DEG 29KT 3918 7583
HAIL...0.75IN
WIND...60MPH
$$
PO1 follow-up statement
854
WWUS51 KPHI 182142
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
542 PM EDT MON JUL 18 2016
MDC011-029-035-182152-
/O.CAN.KPHI.SV.W.0115.000000T0000Z-160718T2215Z/
QUEEN ANNE'S MD-CAROLINE MD-KENT MD-
542 PM EDT MON JUL 18 2016
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN QUEEN ANNE'S...
NORTHEASTERN CAROLINE AND EAST CENTRAL KENT COUNTIES IS CANCELLED...
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA...THEREFORE THE WARNING HAS BEEN CANCELLED.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FOR
NORTHERN AND CENTRAL DELAWARE...AND EASTERN MARYLAND.
LAT...LON 3930 7570 3936 7547 3935 7546 3937 7543
3936 7543 3935 7545 3931 7541 3914 7537
3905 7537 3904 7574 3907 7574
TIME...MOT...LOC 2142Z 268DEG 38KT 3922 7553
$$
DEC001-003-182215-
/O.CON.KPHI.SV.W.0115.000000T0000Z-160718T2215Z/
NEW CASTLE DE-KENT DE-
542 PM EDT MON JUL 18 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTH CENTRAL NEW CASTLE AND CENTRAL KENT COUNTIES...
AT 542 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER DOVER
SPEEDWAY... OR NEAR DOVER...MOVING EAST AT 45 MPH.
HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
LOCATIONS IMPACTED INCLUDE...
DOVER...SMYRNA...CAMDEN...CLAYTON...CHESWOLD...BOWERS...WOODSIDE...
VIOLA...HARTLY...DOVER SPEEDWAY...WOODLAND BEACH...
DOVER BASE HOUSING...RISING SUN-LEBANON...RISING SUN...
HAZLETTVILLE...WYOMING...KENTON...MAGNOLIA...
LITTLE CREEK AND LEIPSIC.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3930 7570 3936 7547 3935 7546 3937 7543
3936 7543 3935 7545 3931 7541 3914 7537
3905 7537 3904 7574 3907 7574
TIME...MOT...LOC 2142Z 268DEG 38KT 3922 7553
HAIL...0.75IN
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 | New Castle | 56 min |
| Jul 18, 4:14 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 46 min |
| Jul 18, 4:15 PM EDT | Areal Flood Advisory | PHI | New Castle | 2 hr |
| Jul 18, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 38 min |
| Jul 18, 5:22 PM EDT | Special Weather Statement | PHI | New Castle | 53 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2016Severe Thunderstorm Warnings in Delaware, 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.