Alert archive / Maryland / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 167, NWS Philadelphia/Mount Holly

November 6, 2014Caroline County, Queen Anne's County, Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Nov 6, 2014, 3:34 PM EST for Caroline County, Queen Anne's County, Talbot County, Maryland. It was in force for 41 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
Nov 6, 2014, 3:34 PM EST (20:34 UTC)
Expired
Nov 6, 2014, 4:15 PM EST
In force
41 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

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

The radar

The Dover AFB radar (KDOX), 69 km from the middle of the area, began a volume at 20:37 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 8.6 hours before the alert went out and 75 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, Phillips Aaf/Abe, MD at 12:00Z on 2014-11-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Phillips Aaf/Abe, MD at 12:00Z on 2014-11-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 432 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
653 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
432 m²/s²
0-3 km storm-relative helicity
743 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

877 
WUUS51 KPHI 062034
SVRPHI
MDC011-035-041-062115-
/O.NEW.KPHI.SV.W.0167.141106T2034Z-141106T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
334 PM EST THU NOV 6 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CAROLINE COUNTY IN EASTERN MARYLAND...
  SOUTHWESTERN QUEEN ANNE'S COUNTY IN NORTHEAST MARYLAND...
  TALBOT COUNTY IN EASTERN MARYLAND...

* UNTIL 415 PM EST

* AT 333 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM. THE STORM WAS NEAR TILGHMAN ISLAND...MOVING
  EAST AT 40 MPH. THIS STORM IS CAPABLE OF PRODUCING DAMAGING WINDS
  IN EXCESS OF 60 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  TALBOT AND ROMANCOKE AROUND 340 PM EST...
  ST. MICHAELS AND OXFORD AROUND 345 PM EST...
  COPPERVILLE AROUND 350 PM EST...
  EASTON AND HAMBLETON AROUND 355 PM EST...
  SKIPTON AND WYE MILLS AROUND 400 PM EST...
  MATTHEWS AND CORDOVA AROUND 405 PM EST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...MOVE INDOORS TO A
STURDY BUILDING AND STAY AWAY FROM WINDOWS. WHEN IT IS SAFE TO DO
SO...REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR TO THE
NATIONAL WEATHER SERVICE.

OCCASIONAL CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS SEVERE 
THUNDERSTORM. WHEN THUNDER ROARS...MOVE INDOORS! REMEMBER...IF YOU 
CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3889 7637 3890 7633 3883 7630 3887 7625
      3881 7621 3892 7621 3901 7579 3868 7573
      3870 7586 3865 7617 3873 7626 3871 7631
      3867 7634 3875 7635 3877 7639 3876 7636
      3883 7631 3885 7633 3884 7639
TIME...MOT...LOC 2034Z 257DEG 36KT 3876 7636

$$

ROBERTSON
1 follow-up statement
393 
WWUS51 KPHI 062101
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
401 PM EST THU NOV 6 2014

MDC011-035-041-062115-
/O.CON.KPHI.SV.W.0167.000000T0000Z-141106T2115Z/
CAROLINE MD-QUEEN ANNE'S MD-TALBOT MD-
401 PM EST THU NOV 6 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EST
FOR NORTHEASTERN TALBOT...SOUTH CENTRAL QUEEN ANNE'S AND CAROLINE
COUNTIES...

AT 357 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR EASTON...OR 15 MILES
NORTH OF CAMBRIDGE...MOVING EAST AT 40 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  TANYARD BY 405 PM EST...
  MATTHEWS...CORDOVA...7 MILES NORTH OF PRESTON AND 8 MILES SOUTH OF
  QUEEN ANNE BY 410 PM EST...
  HARMONY...GRIFFIN...6 MILES SOUTHWEST OF DENTON AND 7 MILES
  NORTHWEST OF AGNER BY 415 PM EST...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...MOVE INDOORS TO A
STURDY BUILDING AND STAY AWAY FROM WINDOWS. WHEN IT IS SAFE TO DO
SO...REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR TO THE
NATIONAL WEATHER SERVICE.

LAT...LON 3870 7615 3889 7619 3895 7601 3901 7579
      3868 7573 3870 7586 3868 7597
TIME...MOT...LOC 2100Z 259DEG 34KT 3879 7607

$$

ROBERTSON

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 6, 3:07 PM ESTSpecial Weather StatementPHIQueen Anne's, Talbot53 min
Nov 6, 4:03 PM ESTSpecial Weather StatementPHICaroline, Talbot57 min
Nov 6, 6:50 PM ESTSpecial Weather StatementPHIQueen Anne's40 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2014Every severe thunderstorm warning in 2014

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.