Alert archive / Maryland / Special Weather Statements in 2010

Special Weather Statement, NWS Philadelphia/Mount Holly

June 24, 2010Caroline County, Queen Anne's County, Maryland

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 24, 2010, 5:02 PM EDT for Caroline County, Queen Anne's County, Maryland. It was in force for 58 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, 5:02 PM EDT (21:02 UTC)
Expired: Jun 24, 2010, 6:00 PM EDT
In force: 58 min
Issued by: NWS Philadelphia/Mount Holly

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

The radar

The Dover AFB radar (KDOX), 48 km from the middle of the area, began a volume at 21:05 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, 9.0 hours before the alert went out and 58 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: 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, 4:54 PM EDT, 8 minutes earlier.

Area forecast discussion, Jun 24, 4:54 PM EDT, 8 minutes before

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Hazardous weather outlook, Jun 24, 4:48 PM EDT, 14 minutes before

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In the hours before

Special weather statement, Jun 24, 1:16 PM EDT, 3 hours 46 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
116 PM EDT THU JUN 24 2010

NJZ001-007-008-PAZ055-241815-
MONROE PA-MORRIS NJ-SUSSEX NJ-WARREN NJ-
116 PM EDT THU JUN 24 2010

...A STRONG THUNDERSTORM WILL AFFECT MONROE...MORRIS...SUSSEX AND
WARREN COUNTIES...

AT 115 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR FLATBROOKVILLE...MOVING EAST AT 50 MPH. THE
THUNDERSTORM WILL BE NEAR GREEN POND AND OGDENSBURG AROUND 130 PM...
AND BUTLER AND RIVERDALE AROUND 145 PM.

ADDITIONAL SHOWERS AND THUNDERSTORMS WILL AFFECT MONROE COUNTY IN
PENNSYLVANIA...AND THE NEW JERSEY COUNTIES OF SUSSEX...WARREN AND
MORRIS THIS AFTERNOON.

WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THIS STORM.

IF YOU OBSERVE THREATENING WEATHER...SEEK SHELTER AT ONCE.

LAT...LON 4120 7437 4104 7449 4100 7430 4089 7427
      4064 7452 4070 7451 4078 7490 4059 7519
      4075 7520 4091 7508 4096 7514 4081 7548
      4094 7557 4099 7550 4113 7565 4124 7550
      4126 7514 4115 7516 4109 7501 4135 7470

IOVINO

Local storm report, Jun 24, 4:02 PM EDT, 1 hour 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, 47 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, 22 minutes before

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Local storm report, Jun 24, 4:58 PM EDT, 4 minutes before

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Special weather statement, Jun 24, 5:02 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.

Issued	Product	Office	Counties	Lasted
Jun 24, 12:36 PM EDT	Special Weather Statement	PHI	Morris, Sussex	54 min
Jun 24, 1:16 PM EDT	Special Weather Statement	PHI	Morris, Sussex, Warren	59 min
Jun 24, 3:13 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Salem	62 min
Jun 24, 3:44 PM EDT	Severe Thunderstorm Warning	PHI	Salem	76 min
Jun 24, 3:47 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more	58 min
Jun 24, 4:04 PM EDT	Special Marine Warning	PHI		86 min
Jun 24, 4:15 PM EDT	Special Weather Statement	PHI	Sussex	60 min
Jun 24, 4:18 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Cumberland, Gloucester, Salem	57 min
Jun 24, 4:43 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 1 more	62 min
Jun 24, 5:15 PM EDT	Special Marine Warning	PHI		60 min
Jun 24, 5:26 PM EDT	Special Marine Warning	PHI		2 hr
Jun 24, 5:46 PM EDT	Severe Thunderstorm Warning	PHI	Cape May, Cumberland	59 min
Jun 24, 6:14 PM EDT	Special Marine Warning	PHI		91 min
Jun 24, 6:17 PM EDT	Special Marine Warning	PHI		58 min
Jun 24, 7:39 PM EDT	Special Marine Warning	PHI		79 min
Jun 24, 1:59 PM EDT	Severe Thunderstorm Warning	PHI	Berks	66 min
Jun 24, 2:31 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Montgomery	59 min
Jun 24, 2:56 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	64 min
Jun 24, 3:29 PM EDT	Severe Thunderstorm Warning	PHI	Chester	61 min
Jun 24, 5:18 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	87 min
Jun 24, 6:05 PM EDT	Special Weather Statement	PHI	Talbot	55 min
Jun 24, 6:53 PM EDT	Special Weather Statement	PHI	Sussex	67 min
Jun 24, 7:14 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	50 min

Nearby

Special Weather Statements in Maryland, 2010 Every 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.