Alert archive / Maryland / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 119, NWS Philadelphia/Mount Holly

July 19, 2016Kent County, Queen Anne's County, Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 19, 2016, 11:41 PM EDT for Kent County, Queen Anne's County, Maryland. It was in force for 49 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
Jul 19, 2016, 11:41 PM EDT (03:41 UTC)
Expired
Jul 20, 2016, 12:30 AM EDT
In force
49 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Kent County, MD, Queen Anne's County, MD

The radar

The Dover AFB radar (KDOX), 79 km from the middle of the area, began a volume at 03:41 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 nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 3.7 hours before the alert went out and 112 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 2016-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 965 joules per kilogram.LCLEL10008507005003002001001 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 2016-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.193958Sfc1 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
965 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1760 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

602 
WUUS51 KPHI 200341
SVRPHI
MDC029-035-200430-
/O.NEW.KPHI.SV.W.0119.160720T0341Z-160720T0430Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1141 PM EDT TUE JUL 19 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN KENT COUNTY IN NORTHEASTERN MARYLAND...
  NORTH CENTRAL QUEEN ANNE'S COUNTY IN NORTHEASTERN MARYLAND...

* UNTIL 1230 AM EDT

* AT 1141 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR
  NEWTOWN...OR 12 MILES EAST OF MILLERS ISLAND...MOVING SOUTHEAST AT
  15 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  CHESTERTOWN...ROCK HALL...CHURCH HILL...OLD TOWN...NEWTOWN...
  LANGFORD AND KINGSTOWN.

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 7622 3928 7620 3929 7617 3930 7618
      3932 7618 3934 7616 3933 7614 3932 7613
      3918 7590 3904 7622 3919 7626
TIME...MOT...LOC 0341Z 328DEG 15KT 3928 7620 

HAIL...1.00IN
WIND...60MPH
 
$$

ROBERTSON
1 follow-up statement
879 
WWUS51 KPHI 200412
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1212 AM EDT WED JUL 20 2016

MDC029-035-200430-
/O.CON.KPHI.SV.W.0119.000000T0000Z-160720T0430Z/
KENT MD-QUEEN ANNE'S MD-
1212 AM EDT WED JUL 20 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM EDT
FOR SOUTHWESTERN KENT AND NORTH CENTRAL QUEEN ANNE'S COUNTIES...

AT 1212 AM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER OLD
TOWN...OR 9 MILES NORTH OF CENTERVILLE...MOVING SOUTHEAST AT 15 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
CHESTERTOWN...ROCK HALL...CHURCH HILL...LANGFORD...OLD TOWN AND
KINGSTOWN.

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.

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 3922 7624 3928 7608 3917 7592 3914 7599
      3904 7622 3910 7624 3921 7625
TIME...MOT...LOC 0412Z 328DEG 15KT 3917 7611 

HAIL...1.00IN
WIND...60MPH
 
$$

ROBERTSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 11:06 PM EDTSpecial Weather StatementPHITalbot24 min
Jul 19, 11:08 PM EDTSpecial Weather StatementPHIKent, Queen Anne's37 min
Jul 19, 11:15 PM EDTSevere Thunderstorm WarningPHIQueen Anne's, Talbot60 min
Jul 19, 11:35 PM EDTSevere Thunderstorm WarningPHICaroline, Kent, Queen Anne's, Talbot55 min
Jul 20, 12:15 AM EDTAreal Flood AdvisoryPHICaroline, Kent, Queen Anne's, Talbot4 hr
Jul 20, 12:31 AM EDTSpecial Weather StatementPHICaroline44 min
Jul 20, 12:32 AM EDTSpecial Weather StatementPHIQueen Anne's43 min
Jul 20, 1:11 AM EDTSpecial Weather StatementPHICaroline49 min
Jul 20, 1:14 AM EDTSpecial Weather StatementPHIQueen Anne's46 min
Jul 20, 1:17 AM EDTSpecial Weather StatementPHICaroline43 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.