Alert archive / Maryland / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 52, NWS Philadelphia/Mount Holly

June 18, 2014Cecil County, Kent County, Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 18, 2014, 11:36 PM EDT for Cecil County, Kent County, Maryland. It was in force for 54 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: Jun 18, 2014, 11:36 PM EDT (03:36 UTC)
Expired: Jun 19, 2014, 12:30 AM EDT
In force: 54 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Cecil County, MD, Kent County, MD

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 3.6 hours before the alert went out and 124 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1758 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1858 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 7.3

Open this sounding in Storm Lab

The text

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

712 
WUUS51 KPHI 190336
SVRPHI
MDC015-029-190430-
/O.NEW.KPHI.SV.W.0052.140619T0336Z-140619T0430Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1136 PM EDT WED JUN 18 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CECIL COUNTY IN NORTHEAST MARYLAND...
  NORTHERN KENT COUNTY IN NORTHEAST MARYLAND...

* UNTIL 1230 AM EDT

* AT 1135 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM. THE STORM WAS NEAR BOWLEYS QUARTERS...MOVING
  EAST AT 25 MPH. THIS STORM IS CAPABLE OF PRODUCING DAMAGING WINDS
  IN EXCESS OF 60 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  NEWTOWN AROUND 1155 PM EDT...
  BETTERTON AROUND 1205 AM EDT...
  KENNEDYVILLE AND MORGNEC AROUND 1215 AM EDT...
  MASSEY AND CECILTON AROUND 1230 AM EDT...

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.

VERY HEAVY RAIN WILL ALSO OCCUR WITH THIS SEVERE THUNDERSTORM...WHICH
COULD FLOOD LOW LYING AREAS QUICKLY AND COVER ROADS WITH WATER. DO
NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

FREQUENT 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 3927 7623 3930 7619 3932 7619 3938 7611
      3938 7606 3944 7600 3945 7602 3947 7578
      3926 7576 3926 7587 3925 7588 3923 7624
TIME...MOT...LOC 0336Z 267DEG 20KT 3932 7627

$$

NIERENBERG

1 follow-up statement

106 
WWUS51 KPHI 190409
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1209 AM EDT THU JUN 19 2014

MDC015-029-190430-
/O.CON.KPHI.SV.W.0052.000000T0000Z-140619T0430Z/
CECIL MD-KENT MD-
1209 AM EDT THU JUN 19 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM EDT
FOR NORTHERN KENT AND SOUTHEASTERN CECIL COUNTIES...

AT 1206 AM EDT...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 BETTERTON...OR 14
MILES SOUTHEAST OF ABERDEEN...MOVING EAST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  KENNEDYVILLE AND MORGNEC BY 1215 AM EDT...
  GALENA...MASSEY...CECILTON AND SASSAFRAS BY 1230 AM EDT...

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 3927 7623 3930 7619 3932 7619 3938 7611
      3938 7606 3944 7600 3945 7602 3947 7578
      3926 7576 3926 7587 3925 7588 3923 7624
TIME...MOT...LOC 0409Z 267DEG 20KT 3933 7603

$$
NIERENBERG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 10:51 PM EDT	Special Weather Statement	PHI	Cecil, Kent, Queen Anne's	84 min
Jun 19, 12:43 AM EDT	Special Weather Statement	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	2 hr
Jun 19, 1:30 AM EDT	Areal Flood Advisory	PHI	Cecil, Kent	4 hr
Jun 19, 1:43 AM EDT	Flash Flood Warning	PHI	Cecil, Kent, Queen Anne's	4 hr
Jun 19, 2:01 AM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	59 min
Jun 19, 5:38 PM EDT	Special Weather Statement	PHI	Talbot	52 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2014 Every 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.