Alert archive / Maryland / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 106, NWS Philadelphia/Mount Holly

June 27, 2008Caroline County, Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 27, 2008, 3:13 PM EDT for Caroline County, Talbot County, Maryland. It was in force for 62 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 27, 2008, 3:13 PM EDT (19:13 UTC)
Expired
Jun 27, 2008, 4:15 PM EDT
In force
62 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Caroline County, MD, Talbot County, MD

The radar

The Dover AFB radar (KDOX), 62 km from the middle of the area, began a volume at 19:13 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 watch it was issued in

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

IssuedProductOfficeLasted
Jun 27, 12:40 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.2 hours before the alert went out and 89 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 2008-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 109 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, Phillips Aaf/Abe, MD at 12:00Z on 2008-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 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
109 J/kg
Mixed-layer CIN
-165 J/kg
Mixed-layer LCL
1755 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
58 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KPHI 271913
SVRPHI
MDC011-041-272015-
/O.NEW.KPHI.SV.W.0106.080627T1913Z-080627T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
313 PM EDT FRI JUN 27 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN CAROLINE COUNTY IN EASTERN MARYLAND...
  SOUTHERN TALBOT COUNTY IN EASTERN MARYLAND...

* UNTIL 415 PM EDT

* AT 308 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  TILGHMAN ISLAND...OR ABOUT 54 MILES SOUTHWEST OF DOVER...AND MOVING
  EAST AT 22 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  OXFORD BY 335 PM...
  TRAPPE AND HAMBLETON BY 350 PM...
  WINDYHILL BY 400 PM...
  CHOPTANK BY 405 PM...
  PRESTON BY 410 PM...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM FRIDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN NEW
JERSEY AND SOUTHEAST PENNSYLVANIA.

LAT...LON 3876 7634 3874 7582 3869 7582 3867 7595
      3860 7598 3857 7602 3861 7611 3863 7612
      3863 7615 3868 7619 3866 7621 3874 7625
      3870 7627 3871 7631 3872 7631 3868 7631
      3866 7635 3867 7636
TIME...MOT...LOC 1913Z 283DEG 19KT 3871 7632

$$

KRUZDLO
1 follow-up statement
000 
WWUS51 KPHI 272012
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
412 PM EDT FRI JUN 27 2008

MDC011-041-272022-
/O.EXP.KPHI.SV.W.0106.000000T0000Z-080627T2015Z/
CAROLINE MD-TALBOT MD-
412 PM EDT FRI JUN 27 2008

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN TALBOT AND
SOUTHWESTERN CAROLINE COUNTIES WILL EXPIRE AT 415 PM EDT...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FRIDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN NEW
JERSEY AND SOUTHEAST PENNSYLVANIA.

LAT...LON 3876 7634 3874 7582 3869 7582 3867 7595
      3860 7598 3857 7602 3861 7611 3863 7612
      3863 7615 3868 7619 3866 7621 3874 7625
      3870 7627 3871 7631 3872 7631 3868 7631
      3866 7635 3867 7636
TIME...MOT...LOC 2012Z 283DEG 19KT 3864 7593

$$

KRUZDLO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 3:03 PM EDTSevere Thunderstorm WarningPHICaroline, Queen Anne's, Talbot33 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.