Alert archive / Maryland / Special Weather Statements in 2023

Special Weather Statement, NWS Philadelphia/Mount Holly

July 6, 2023Caroline County, Maryland

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 6, 2023, 6:37 PM EDT for Caroline County, Maryland. It was in force for 23 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: Jul 6, 2023, 6:37 PM EDT (22:37 UTC)
Expired: Jul 6, 2023, 7:00 PM EDT
In force: 23 min
Issued by: NWS Philadelphia/Mount Holly
Hail: 0.00 in
Wind: 40

County Caroline County, MD

The radar

The Dover AFB radar (KDOX), 29 km from the middle of the area, began a volume at 22:38 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 10.6 hours before the alert went out and 142 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: 675 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 1113 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 Jul 6, 3:22 PM EDT, 3 hours 15 minutes earlier.

Area forecast discussion, Jul 6, 3:22 PM EDT, 3 hours 15 minutes before

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Hazardous weather outlook, Jul 6, 4:16 PM EDT, 2 hours 21 minutes before

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In the hours before

Special weather statement, Jul 6, 1:01 PM EDT, 5 hours 36 minutes before

Special Weather Statement
National Weather Service Mount Holly NJ
101 PM EDT Thu Jul 6 2023

PAZ060-061-061730-
Lehigh PA-Berks PA-
101 PM EDT Thu Jul 6 2023

...A strong thunderstorm will impact portions of northeastern Berks
and west central Lehigh Counties through 130 PM EDT...

At 100 PM EDT, Doppler radar was tracking a strong thunderstorm over
Lenhartsville, or 16 miles southeast of Tamaqua, moving northeast at
5 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Kutztown, Hamburg, Lenhartsville, New Tripoli, Claussville and
Wanamakers.

This includes Interstate 78 in Pennsylvania between mile markers 32
and 47.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4064 7599 4069 7587 4070 7583 4072 7580
      4063 7561 4049 7584 4058 7601
TIME...MOT...LOC 1700Z 221DEG 6KT 4058 7584

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

MLB

Local storm report, Jul 6, 1:53 PM EDT, 4 hours 44 minutes before

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Special weather statement, Jul 6, 2:12 PM EDT, 4 hours 25 minutes before

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Special weather statement, Jul 6, 2:36 PM EDT, 4 hours 1 minute before

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Special weather statement, Jul 6, 3:56 PM EDT, 2 hours 41 minutes before

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Special weather statement, Jul 6, 6:37 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
Jul 6, 4:11 AM EDT	Dense Fog Advisory	PHI	Atlantic, Cape May	4 hr
Jul 6, 4:12 AM EDT	Marine Dense Fog Advisory	PHI		4 hr
Jul 6, 5:44 PM EDT	Coastal Flood Advisory	PHI	Cape May	10 hr
Jul 6, 11:47 AM EDT	Areal Flood Advisory	PHI	Berks	11 min
Jul 6, 11:48 AM EDT	Special Weather Statement	PHI	Berks	27 min
Jul 6, 11:58 AM EDT	Flash Flood Warning	PHI	Berks	3 hr
Jul 6, 12:04 PM EDT	Areal Flood Advisory	PHI	Berks	3 hr
Jul 6, 12:26 PM EDT	Special Weather Statement	PHI	Lebanon	34 min
Jul 6, 12:36 PM EDT	Special Weather Statement	PHI	Berks	24 min
Jul 6, 1:01 PM EDT	Special Weather Statement	PHI	Lehigh	29 min
Jul 6, 2:36 PM EDT	Special Weather Statement	PHI	Lehigh	24 min
Jul 6, 2:58 PM EDT	Areal Flood Advisory	PHI	Lehigh	102 min
Jul 6, 2:12 PM EDT	Special Weather Statement	PHI	Talbot	33 min
Jul 6, 3:39 PM EDT	Areal Flood Advisory	PHI	Kent	51 min
Jul 6, 3:56 PM EDT	Special Weather Statement	PHI	Wicomico	34 min
Jul 6, 6:58 PM EDT	Special Weather Statement	PHI	Caroline	32 min

Nearby

Special Weather Statements in Maryland, 2023 Every special weather statement in 2023

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.