Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 43, NWS Philadelphia/Mount Holly

June 5, 20164 counties in Pennsylvania; Cecil County, Kent County, Maryland; New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 5, 2016, 4:37 PM EDT for 4 counties in Pennsylvania; Cecil County, Kent County, Maryland; New Castle County, Delaware. It was in force for 38 min. 8 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
Jun 5, 2016, 4:37 PM EDT (20:37 UTC)
Expired
Jun 5, 2016, 5:15 PM EDT
In force
38 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties New Castle County, DE, Cecil County, MD, Kent County, MD, Berks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA

What was reported inside it

TimeReportWhereRemark
Jun 5, 4:55 PM EDTTSTM WND DMG5 S Fleetwood, PATREES AND WIRES DOWN
Jun 5, 5:03 PM EDTTSTM WND DMGPerryville, MDTREES DOWN. POLES ON FIRE. ALSO NEAR CONOWINGO TREES DOWN.
Jun 5, 5:11 PM EDTTSTM WND DMGOxford, PATREES DOWN... ROADS CLOSED NEAR LINCOLN UNIV. DIX 88D TIME EST.
Jun 5, 5:13 PM EDTHAIL 0.52 Se Colora, MDEST WIND 50 MPH.
Jun 5, 5:15 PM EDTTSTM WND DMGElk Twp, PASEVERAL TREES DOWN. TIME ESTIMATED BY RADAR.
Jun 5, 5:20 PM EDTTSTM WND DMGElkton, MDTREE DOWN BLOCKING WEST BOUND US40.
Jun 5, 5:21 PM EDTTSTM WND GST 52Elkton, MD
Jun 5, 5:25 PM EDTTSTM WND GST 48White Clay Creek, DE

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.

IssuedProductOfficeLasted
Jun 5, 3:12 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 8.6 hours before the alert went out and 159 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 12:00Z on 2016-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 60 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 12:00Z on 2016-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 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
60 J/kg
Mixed-layer CIN
-155 J/kg
Mixed-layer LCL
752 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

863 
WUUS51 KPHI 052037
SVRPHI
DEC003-MDC015-029-PAC011-029-045-091-052115-
/O.NEW.KPHI.SV.W.0043.160605T2037Z-160605T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
437 PM EDT SUN JUN 5 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN NEW CASTLE COUNTY IN NORTHERN DELAWARE...
  NORTHEASTERN KENT COUNTY IN NORTHEASTERN MARYLAND...
  CECIL COUNTY IN NORTHEASTERN MARYLAND...
  CHESTER COUNTY IN SOUTHEASTERN PENNSYLVANIA...
  SOUTHERN BERKS COUNTY IN EASTERN PENNSYLVANIA...
  SOUTHWESTERN DELAWARE COUNTY IN SOUTHEASTERN PENNSYLVANIA...
  NORTHWESTERN MONTGOMERY COUNTY IN SOUTHEASTERN PENNSYLVANIA...

* UNTIL 515 PM EDT

* AT 436 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM ROTHSVILLE TO NEAR DELTA TO HAMPTON...MOVING EAST AT
  45 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...PUBLIC. 

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

* LOCATIONS IMPACTED INCLUDE...
  READING...WILMINGTON...NEWARK...MIDDLETOWN...WEST CHESTER...ELKTON...
  CALVERT...POTTSTOWN...PHOENIXVILLE...COATESVILLE...WESTTOWN...
  WYOMISSING...DOWNINGTOWN...ELSMERE...KENNETT SQUARE...NEW CASTLE...
  BIRDSBORO...COLLEGEVILLE...OXFORD AND ROYERSFORD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

IN ADDITION TO 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 THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 3973 7610 3976 7606 3987 7599 4011 7594
      4014 7588 4037 7623 4043 7619 4045 7553
      4041 7547 4028 7543 3969 7554 3931 7586
      3933 7614 3937 7611 3937 7606 3942 7600
      3952 7598 3955 7608 3972 7623
TIME...MOT...LOC 2036Z 268DEG 40KT 4013 7626 3968 7634 3943 7656 

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

LF

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 3:34 PM EDTSpecial Weather StatementPHIBerks, Carbon, Lehigh, Monroe, Northampton86 min
Jun 5, 4:29 PM EDTSevere Thunderstorm WarningPHIBerks, Carbon, Lehigh, Monroe, Northampton46 min
Jun 5, 5:06 PM EDTSevere Thunderstorm WarningPHINorthampton54 min
Jun 5, 5:23 PM EDTSevere Thunderstorm WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia52 min
Jun 5, 5:53 PM EDTSevere Thunderstorm WarningPHIBucks52 min
Jun 5, 5:58 PM EDTSevere Thunderstorm WarningPHIDelaware, Montgomery, Philadelphia47 min
Jun 5, 6:25 PM EDTSpecial Weather StatementPHIQueen Anne's50 min
Jun 5, 7:51 PM EDTSpecial Weather StatementPHIQueen Anne's39 min
Jun 5, 4:05 PM EDTSpecial Weather StatementPHISussex40 min
Jun 5, 4:35 PM EDTSevere Thunderstorm WarningPHISussex40 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2016Severe 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.