Alert archive / Maryland / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 45, NWS Philadelphia/Mount Holly

May 25, 2004Caroline County, Talbot County, Maryland; Kent County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 25, 2004, 8:36 PM EDT for Caroline County, Talbot County, Maryland; Kent County, Delaware. 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: May 25, 2004, 8:36 PM EDT (00:36 UTC)
Expired: May 25, 2004, 9:30 PM EDT
In force: 54 min
Issued by: NWS Philadelphia/Mount Holly
Area: Counties, with a storm outline in the text

Counties Kent County, DE, Caroline County, MD, Talbot County, MD

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 25, 7:25 PM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 0.6 hours before the alert went out and 122 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: 1416 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 992 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 153 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

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

573 
WUUS51 KPHI 260036
SVRPHI
DEC001-MDC011-041-260130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
836 PM EDT TUE MAY 25 2004

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  KENT COUNTY IN CENTRAL DELAWARE
  THIS INCLUDES THE CITY OF DOVER
  CAROLINE COUNTY IN EASTERN MARYLAND
  TALBOT COUNTY IN EASTERN MARYLAND

* UNTIL 930 PM EDT

* AT 832 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS.  THESE STORMS WERE LOCATED ALONG A
  LINE EXTENDING FROM 16 MILES NORTH OF HARTLY TO 12 MILES NORTHWEST
  OF OXFORD...OR ALONG A LINE EXTENDING FROM 19 MILES SOUTH OF NEWARK
  TO 38 MILES EAST OF BELLE HAVEN...AND MOVING EAST AT 20 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  OXFORD BY 900 PM EDT
  QUEEN ANNE AND HARTLY BY 905 PM EDT
  GOLDSBORO AND EASTON BY 910 PM EDT
  DENTON...DOVER AND CAMDEN BY 925 PM EDT
  WOODSIDE AND PRESTON BY 930 PM EDT

THESE STORMS HAVE A HISTORY OF PRODUCING DAMAGING WINDS AND HAIL.

LAT...LON 3919 7571 3867 7621 3869 7582 3922 7541

$$

RPW

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 8:25 PM EDT	Severe Thunderstorm Warning	PHI	Queen Anne's	35 min
May 25, 9:04 PM EDT	Severe Thunderstorm Warning	PHI	Queen Anne's	26 min
May 25, 9:30 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	30 min
May 25, 8:14 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	61 min
May 25, 9:22 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	68 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2004 Severe Thunderstorm Warnings in Delaware, 2004 Every severe thunderstorm warning in 2004

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.