Alert archive / Maryland / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 114, NWS Philadelphia/Mount Holly

August 7, 2005Kent County, Queen Anne's County, Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 7, 2005, 11:28 AM EDT for Kent County, Queen Anne's County, Maryland. It was in force for 34 min. 1 report 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: Aug 7, 2005, 11:28 AM EDT (15:28 UTC)
Expired: Aug 7, 2005, 12:02 PM EDT
In force: 34 min
Issued by: NWS Philadelphia/Mount Holly
Area: Counties, with a storm outline in the text

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

The radar

The Dover AFB radar (KDOX), 67 km from the middle of the area, began a volume at 15:32 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

Time	Report	Where	Remark
Aug 7, 11:40 AM EDT	TSTM WND DMG	Rock Hall, MD	TREE KNOCKED DOWN ONTO WIRES.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 3.5 hours before the alert went out and 114 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: 328 J/kg
Mixed-layer CIN: -106 J/kg
Mixed-layer LCL: 947 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 53 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.

000 
WUUS51 KPHI 071530
SVRPHI
MDC029-035-071615-
/O.NEW.KPHI.SV.W.0114.050807T1528Z-050807T1615Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1128 AM EDT SUN AUG 7 2005

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN KENT COUNTY IN NORTHEAST MARYLAND
  CENTRAL QUEEN ANNES COUNTY IN NORTHEAST MARYLAND

* UNTIL 1215 PM EDT

* AT 1126 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR ROCK HALL...OR ABOUT 28
  MILES SOUTHEAST OF BALTIMORE...AND MOVING NORTHEAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CENTREVILLE BY 1135 AM EDT
  CHURCH HILL AND CHESTERTOWN BY 1215 PM EDT

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES ESPECIALLY SINCE THE STORMS
WERE MOVING ASHORE AND THERE MAY BE A WATERSPOUT POSSIBLY COMING
ASHORE. THERE IS ALSO A TREMENDOUS AMOUNT OF CLOUD TO GROUND 
LIGHTNING.


 
LAT...LON 3915 7626 3897 7613 3912 7587 3932 7599

$$
EBERWINE

1 follow-up statement

000 
WWUS51 KPHI 071602
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1202 PM EDT SUN AUG 7 2005

MDC029-035-071612-
/O.CAN.KPHI.SV.W.0114.000000T0000Z-050807T1615Z/
KENT MD-QUEEN ANNES MD-
1202 PM EDT SUN AUG 7 2005

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN QUEEN ANNES AND
WESTERN KENT COUNTIES IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE NOW WEAKENED AND NO LONGER
POSE A SEVERE WEATHER THREAT. HOWEVER, GUSTY WINDS TO 35 MPH STILL 
ARE POSSIBLE.

LAT...LON 3915 7626 3897 7613 3912 7587 3932 7599

$$

RNS

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 11:38 AM EDT	Tornado Warning	PHI	Queen Anne's	21 min
Aug 7, 12:09 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	39 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2005 Every severe thunderstorm warning in 2005

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.