Alert archive / Maryland / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 43, NWS Philadelphia/Mount Holly

June 4, 2008Queen Anne's County, Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 4, 2008, 8:50 PM EDT for Queen Anne's County, Talbot County, 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
Jun 4, 2008, 8:50 PM EDT (00:50 UTC)
Expired
Jun 4, 2008, 9:34 PM EDT
In force
44 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

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

The radar

The Dover AFB radar (KDOX), 65 km from the middle of the area, began a volume at 00:50 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
Jun 4, 8:53 PM EDTTSTM WND DMG5 W Wye Mills, MDWIRES DOWN IN BRYANTOWN.
Jun 4, 9:30 PM EDTTSTM WND DMGMatthews, MDA TRACTOR TRAILER WAS OVERTURNED ON ROUTE 328 NEAR THE TALBOT AND CAROLINE COUNTY LINES.

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 4, 7:34 PM EDTTornado WatchSPC5 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 0.8 hours before the alert went out and 107 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 2008-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 225 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 2008-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 square meters per square second.19395878Sfc1 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
225 J/kg
Mixed-layer CIN
-124 J/kg
Mixed-layer LCL
1210 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
0.1
Supercell composite
6.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS51 KPHI 050050
SVRPHI
MDC035-041-050200-
/O.NEW.KPHI.SV.W.0043.080605T0050Z-080605T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
850 PM EDT WED JUN 4 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TALBOT COUNTY IN EASTERN MARYLAND...
  SOUTHWESTERN QUEEN ANNES COUNTY IN NORTHEAST MARYLAND...

* UNTIL 1000 PM EDT

* AT 845 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 11 MILES NORTHWEST OF TALBOT TO
  25 MILES SOUTHWEST OF OXFORD...OR ALONG A LINE EXTENDING FROM 54
  MILES WEST OF DOVER TO 72 MILES SOUTHWEST OF DOVER...AND MOVING
  EAST AT 40 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  TILGHMAN ISLAND BY 855 PM...
  TALBOT BY 900 PM...
  ST. MICHAELS AND OXFORD BY 905 PM...
  COPPERVILLE BY 910 PM...
  WYE MILLS...HAMBLETON...TRAPPE AND EASTON BY 915 PM...
  SKIPTON BY 920 PM...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM THURSDAY MORNING FOR
SOUTHERN DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN NEW JERSEY.

LAT...LON 3876 7635 3890 7625 3891 7626 3893 7628
      3894 7628 3884 7638 3893 7637 3894 7636
      3895 7624 3887 7626 3882 7621 3895 7623
      3896 7598 3882 7593 3874 7603 3860 7598
      3861 7611 3873 7625 3867 7636 3877 7640
TIME...MOT...LOC 0050Z 270DEG 34KT 3888 7640 3836 7633

$$

GORSE
1 follow-up statement
000 
WWUS51 KPHI 050134
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
934 PM EDT WED JUN 4 2008

MDC035-041-050142-
/O.CAN.KPHI.SV.W.0043.000000T0000Z-080605T0200Z/
QUEEN ANNES MD-TALBOT MD-
934 PM EDT WED JUN 4 2008

...THE SEVERE THUNDERSTORM WARNING FOR TALBOT AND SOUTHWESTERN QUEEN
ANNES COUNTIES IS CANCELLED...

THE STRONGEST PORTION OF THE LINE OF THUNDERSTORMS HAS MOVED OUT OF 
THE AREA, THEREFORE THE WARNING HAS BEEN CANCELLED.

AN AREA OF RAIN AND EMBEDDED THUNDERSTORMS HOWEVER WILL PERSIST FOR 
AWHILE LONGER WITH LOCALLY HEAVY RAINFALL POSSIBLE.

LAT...LON 3876 7635 3890 7625 3891 7626 3893 7628
      3894 7628 3884 7638 3893 7637 3894 7636
      3895 7624 3887 7626 3882 7621 3895 7623
      3896 7598 3882 7593 3874 7603 3860 7598
      3861 7611 3873 7625 3867 7636 3877 7640
TIME...MOT...LOC 0132Z 270DEG 34KT 3888 7589 3836 7582

$$

GORSE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 8:28 PM EDTSevere Thunderstorm WarningPHIKent, Queen Anne's62 min
Jun 4, 9:51 PM EDTAreal Flood WarningPHICaroline, Cecil, Kent, Queen Anne's, Talbot4 hr
Jun 5, 4:34 AM EDTExcessive Heat WatchPHICaroline, Cecil, Kent, Queen Anne's, Talbot71 hr

Nearby

Severe Thunderstorm Warnings in Maryland, 2008Every severe thunderstorm warning in 2008

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.