Alert archive / Maryland / Special Weather Statements in 2010

Special Weather Statement, NWS Philadelphia/Mount Holly

June 24, 2010Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 24, 2010, 6:05 PM EDT for Talbot County, Maryland. It was in force for 55 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 24, 2010, 6:05 PM EDT (22:05 UTC)
Expired
Jun 24, 2010, 7:00 PM EDT
In force
55 min
Issued by
NWS Philadelphia/Mount Holly

County Talbot County, MD

The radar

The Dover AFB radar (KDOX), 64 km from the middle of the area, began a volume at 22:07 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, 10.1 hours before the alert went out and 83 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 2010-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 126 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2010-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 133 square meters per square second.193958Sfc1 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
126 J/kg
Mixed-layer CIN
-170 J/kg
Mixed-layer LCL
1592 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
133 m²/s²
0-3 km storm-relative helicity
65 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.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this special weather statement went out at Jun 24, 6:01 PM EDT, 4 minutes earlier.

Area forecast discussion, Jun 24, 6:01 PM EDT, 4 minutes before
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Hazardous weather outlook, Jun 24, 5:52 PM EDT, 13 minutes before
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In the hours before

Local storm report, Jun 24, 4:02 PM EDT, 2 hours 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
402 PM EDT THU JUN 24 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0245 PM     TSTM WND DMG     3 SSE FLYING HILLS      40.24N 75.90W
06/24/2010                   BERKS              PA   EMERGENCY MNGR

            TREES DOWN IN ROBESON TWP.

0300 PM     TSTM WND DMG     EXTON                   40.03N 75.63W
06/24/2010                   CHESTER            PA   TRAINED SPOTTER

            TREES AND WIRES DOWN IN EXTON

0320 PM     HAIL             RIDLEY PARK             39.88N 75.33W
06/24/2010  E1.00 INCH       DELAWARE           PA   TRAINED SPOTTER

            QUARTER SIZE HAIL IN RIDLEY CREEK STATE PARK

0320 PM     HAIL             2 SSW ALDAN             39.90N 75.30W
06/24/2010  E1.00 INCH       DELAWARE           PA   TRAINED SPOTTER

            QUARTER SIZE HAIL IN HAVERTOWN

0325 PM     HAIL             2 SW MORRIS PARK        39.96N 75.29W
06/24/2010  E1.00 INCH       DELAWARE           PA   AMATEUR RADIO

            QUARTER SIZE HAIL IN UPPER DARBY

0328 PM     HAIL             LANSDOWNE               39.94N 75.28W
06/24/2010  E1.00 INCH       DELAWARE           PA   TRAINED SPOTTER

            QUARTER SIZE HAIL IN LANSDOWNE

0330 PM     TSTM WND DMG     NNE NEWTOWN GRANT       39.99N 75.40W
06/24/2010                   DELAWARE           PA   AMATEUR RADIO

            TREES DOWN, TRAFFIC LIGHTS OUT.

0330 PM     TSTM WND DMG     SHARON HILL             39.91N 75.27W
06/24/2010                   DELAWARE           PA   AMATEUR RADIO

            TREE BLOCKING CALCON HOOK ROAD

0330 PM     HAIL             YEADON                  39.93N 75.25W
06/24/2010  E1.75 INCH       DELAWARE           PA   STORM CHASER

            GOLF BALL SIZE HAIL IN YEADON

0331 PM     TSTM WND GST     PHILADELPHIA INTL AIRPO 39.86N 75.30W
06/24/2010  M75.00 MPH       DELAWARE           PA   ASOS

            65 KNOTS MEASURED AT PHILADELPHIA INTL AIRPORT

0340 PM     TSTM WND GST     5 W SPRINGDALE          39.88N 75.06W
06/24/2010  E60.00 MPH       CAMDEN             NJ   TRAINED SPOTTER

            WIND GUSTS ESTIMATED TO 60 MPH.

0345 PM     TSTM WND GST     BLACKWOOD               39.80N 75.06W
06/24/2010  E55.00 MPH       CAMDEN             NJ   TRAINED SPOTTER

            TREE LIMBS DOWN.

&&

ROBERTSON
Special weather statement, Jun 24, 4:15 PM EDT, 1 hour 50 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
415 PM EDT THU JUN 24 2010

NJZ001-242115-
SUSSEX NJ-
415 PM EDT THU JUN 24 2010

...A STRONG THUNDERSTORM WILL AFFECT SUSSEX COUNTY...

AT 415 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 11 MILES NORTHWEST OF MONTAGUE...MOVING SOUTHEAST
AT 45 MPH. THE THUNDERSTORM WILL BE NEAR HAINESVILLE AND HIGH POINT
AROUND 430 PM...SUSSEX AND VERNON VALLEY AROUND 445 PM AND HIGHLAND
LAKE AROUND 500 PM.

WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.

LAT...LON 4120 7437 4096 7464 4116 7491 4121 7487
      4122 7488 4127 7484 4132 7479 4135 7471
      4135 7468

IOVINO
Local storm report, Jun 24, 4:40 PM EDT, 1 hour 25 minutes before
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Local storm report, Jun 24, 4:58 PM EDT, 1 hour 7 minutes before
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Special weather statement, Jun 24, 5:02 PM EDT, 1 hour 3 minutes before
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Special weather statement, Jun 24, 6:05 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 12:36 PM EDTSpecial Weather StatementPHIMorris, Sussex54 min
Jun 24, 1:16 PM EDTSpecial Weather StatementPHIMorris, Sussex, Warren59 min
Jun 24, 3:13 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester, Salem62 min
Jun 24, 3:44 PM EDTSevere Thunderstorm WarningPHISalem76 min
Jun 24, 3:47 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more58 min
Jun 24, 4:04 PM EDTSpecial Marine WarningPHI86 min
Jun 24, 4:15 PM EDTSpecial Weather StatementPHISussex60 min
Jun 24, 4:18 PM EDTSevere Thunderstorm WarningPHICamden, Cumberland, Gloucester, Salem57 min
Jun 24, 4:43 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 1 more62 min
Jun 24, 5:15 PM EDTSpecial Marine WarningPHI60 min
Jun 24, 5:26 PM EDTSpecial Marine WarningPHI2 hr
Jun 24, 5:46 PM EDTSevere Thunderstorm WarningPHICape May, Cumberland59 min
Jun 24, 6:14 PM EDTSpecial Marine WarningPHI91 min
Jun 24, 6:17 PM EDTSpecial Marine WarningPHI58 min
Jun 24, 7:39 PM EDTSpecial Marine WarningPHI79 min
Jun 24, 1:59 PM EDTSevere Thunderstorm WarningPHIBerks66 min
Jun 24, 2:31 PM EDTSevere Thunderstorm WarningPHIChester, Montgomery59 min
Jun 24, 2:56 PM EDTSevere Thunderstorm WarningPHIChester, Delaware, Montgomery, Philadelphia64 min
Jun 24, 3:29 PM EDTSevere Thunderstorm WarningPHIChester61 min
Jun 24, 5:02 PM EDTSpecial Weather StatementPHICaroline, Queen Anne's58 min
Jun 24, 5:18 PM EDTSevere Thunderstorm WarningPHICaroline, Queen Anne's, Talbot87 min
Jun 24, 6:53 PM EDTSpecial Weather StatementPHISussex67 min
Jun 24, 7:14 PM EDTSevere Thunderstorm WarningPHISussex50 min

Nearby

Special Weather Statements in Maryland, 2010Every special weather statement in 2010

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.