Alert archive / Maryland / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 176, NWS Philadelphia/Mount Holly

August 14, 20165 counties in Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 14, 2016, 9:01 PM EDT for 5 counties in Maryland. It was in force for 44 min. 2 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
Aug 14, 2016, 9:01 PM EDT (01:01 UTC)
Expired
Aug 14, 2016, 9:45 PM EDT
In force
44 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD

The radar

The Dover AFB radar (KDOX), 71 km from the middle of the area, began a volume at 01:03 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

TimeReportWhereRemark
Aug 14, 9:12 PM EDTTSTM WND GST 56Tolchester Beach, MD
Aug 14, 9:30 PM EDTTSTM WND DMGEarleville, MDMULTIPLE REPORTS OF TREES AND WIRES BLOWN DOWN ACROSS PORTIONS OF THE SOUTHERN HALF OF THE COUNTY...INCLUDING ALONG CRYSTAL BEACH ROAD. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 1.0 hours before the alert went out and 105 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 00:00Z on 2016-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 444 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 2016-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
444 J/kg
Mixed-layer CIN
-123 J/kg
Mixed-layer LCL
1571 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
-5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

898 
WUUS51 KPHI 150101
SVRPHI
MDC011-015-029-035-041-150145-
/O.NEW.KPHI.SV.W.0176.160815T0101Z-160815T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
901 PM EDT SUN AUG 14 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  KENT COUNTY IN NORTHEASTERN MARYLAND...
  NORTHWESTERN TALBOT COUNTY IN EASTERN MARYLAND...
  CECIL COUNTY IN NORTHEASTERN MARYLAND...
  QUEEN ANNE'S COUNTY IN NORTHEASTERN MARYLAND...
  SOUTHWESTERN CAROLINE COUNTY IN EASTERN MARYLAND...

* UNTIL 945 PM EDT

* AT 901 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM PLEASANT HILLS TO ARNOLD...MOVING EAST AT 30 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  EASTON...CENTERVILLE...TALBOT...CHESTERTOWN...CENTREVILLE...
  NORTH EAST...ROMANCOKE...RIDGELY...ROCK HALL...CHARLESTOWN...
  ST. MICHAELS...CHURCH HILL...BETTERTON...QUEEN ANNE...OLD TOWN...
  KENNEDYVILLE...STARR...HARMONY...WOODLAWN AND HOLLYWOOD BEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3895 7636 3903 7632 3900 7617 3901 7620
      3902 7621 3917 7628 3932 7618 3943 7600
      3952 7598 3964 7616 3965 7589 3873 7588
      3880 7631 3885 7627 3881 7620 3897 7625
      3884 7637 3885 7638
TIME...MOT...LOC 0101Z 258DEG 24KT 3951 7639 3904 7646 

HAIL...<.75IN
WIND...60MPH
 
$$

MWG
1 follow-up statement
894 
WWUS51 KPHI 150129
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
929 PM EDT SUN AUG 14 2016

MDC011-015-029-035-041-150145-
/O.CON.KPHI.SV.W.0176.000000T0000Z-160815T0145Z/
KENT MD-TALBOT MD-CECIL MD-QUEEN ANNE'S MD-CAROLINE MD-
929 PM EDT SUN AUG 14 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM EDT
FOR KENT...NORTHERN TALBOT...CECIL...QUEEN ANNE'S AND WEST CENTRAL
CAROLINE COUNTIES...

AT 927 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR ABERDEEN TO NEAR OVERTON...MOVING EAST AT 30
MPH. A GUST FRONT WILL EXTEND WELL AHEAD OF ANY RAINFALL. 

HAZARD...60 MPH WIND GUSTS. 

SOURCE...SEVERAL BUOYS IN CHESAPEAKE BAY HAD WIND GUSTS BETWEEN 50
         AND 60 MPH WITH THIS LINE OF STORMS.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
CENTERVILLE...CHESTERTOWN...CENTREVILLE...NORTH EAST...RIDGELY...
ROCK HALL...CHARLESTOWN...CHURCH HILL...BETTERTON...QUEEN ANNE...
OLD TOWN...KENNEDYVILLE...STARR...WOODLAWN...HOLLYWOOD BEACH...
HOPE...GRASONVILLE...CORDOVA...BAY VIEW AND MORGNEC.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3903 7632 3898 7628 3897 7622 3900 7617
      3901 7620 3917 7628 3923 7624 3929 7617
      3932 7618 3943 7600 3952 7598 3964 7616
      3965 7589 3881 7589 3885 7617 3896 7625
      3893 7631 3895 7631 3885 7637
TIME...MOT...LOC 0127Z 258DEG 24KT 3955 7617 3908 7625 

HAIL...<.75IN
WIND...60MPH
 
$$

MWG

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 14, 8:46 PM EDTSpecial Weather StatementPHIKent, Queen Anne's, Talbot29 min
Aug 14, 9:34 PM EDTSevere Thunderstorm WarningPHICecil, Kent56 min
Aug 14, 9:42 PM EDTSevere Thunderstorm WarningPHICaroline, Kent, Queen Anne's49 min
Aug 14, 9:49 PM EDTSevere Thunderstorm WarningPHICecil41 min
Aug 15, 3:21 PM EDTHeat AdvisoryPHICaroline, Cecil, Kent, Queen Anne's, Talbot29 hr
Aug 15, 6:56 PM EDTSpecial Weather StatementPHIKent, Queen Anne's64 min
Aug 15, 7:08 PM EDTSevere Thunderstorm WarningPHICaroline, Kent, Queen Anne's, Talbot37 min
Aug 15, 7:49 PM EDTSpecial Weather StatementPHIKent41 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.