Alert archive / Delaware / Special Weather Statements in 2010

Special Weather Statement, NWS Philadelphia/Mount Holly

June 23, 2010Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 23, 2010, 12:58 AM EDT for Sussex County, Delaware. It was in force for 92 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 23, 2010, 12:58 AM EDT (04:58 UTC)
Expired: Jun 23, 2010, 2:30 AM EDT
In force: 92 min
Issued by: NWS Philadelphia/Mount Holly

County Sussex County, DE

The radar

The Dover AFB radar (KDOX), 31 km from the middle of the area, began a volume at 05:01 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

Wallops Is Stn, VA (KWAL), launched 00:00Z, 5.0 hours before the alert went out and 72 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: 796 J/kg
Mixed-layer CIN: -136 J/kg
Mixed-layer LCL: 1216 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 148 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 5.1

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 22, 11:40 PM EDT, 1 hour 18 minutes earlier.

Area forecast discussion, Jun 22, 11:40 PM EDT, 1 hour 18 minutes before

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Hazardous weather outlook, Jun 22, 9:01 PM EDT, 3 hours 57 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
901 PM EDT TUE JUN 22 2010

DEZ001-NJZ015-017>019-PAZ067>071-240115-
NEW CASTLE-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-CHESTER-
MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
901 PM EDT TUE JUN 22 2010

...EXCESSIVE HEAT WARNING IN EFFECT FROM 11 AM WEDNESDAY TO 6 AM EDT
THURSDAY...
...EXCESSIVE HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN DELAWARE...CENTRAL
NEW JERSEY...SOUTHERN NEW JERSEY AND SOUTHEAST PENNSYLVANIA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   EXCESSIVE HEAT WARNING.
   EXCESSIVE HEAT WATCH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

DEZ002>004-MDZ008-012-015-019-020-NJZ001-007>010-012>014-016-020>027-
PAZ054-055-060>062-240115-
KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-QUEEN ANNES-TALBOT-
CAROLINE-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-EASTERN MONMOUTH-SALEM-OCEAN-CUMBERLAND-ATLANTIC-
CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
901 PM EDT TUE JUN 22 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL DELAWARE...SOUTHERN
DELAWARE...NORTHEAST MARYLAND...CENTRAL NEW JERSEY...NORTHERN NEW
JERSEY...NORTHWEST NEW JERSEY...SOUTHERN NEW JERSEY...EAST CENTRAL
PENNSYLVANIA AND NORTHEAST PENNSYLVANIA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ430-431-450>455-240115-
DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE-
DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE-
COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM-
COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20 NM-
COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20 NM-
COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM-
COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM-
COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM-
901 PM EDT TUE JUN 22 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS AND
DELAWARE BAY WATERS.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jun 22, 9:39 PM EDT, 3 hours 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
939 PM EDT TUE JUN 22 2010

DEZ002-003-MDZ015-019-020-230245-
CAROLINE MD-INLAND SUSSEX DE-KENT DE-QUEEN ANNE'S MD-TALBOT MD-
939 PM EDT TUE JUN 22 2010

...STRONG THUNDERSTORMS WILL AFFECT CAROLINE...KENT...QUEEN ANNE'S...
SUSSEX AND TALBOT COUNTIES...

AT 934 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 7 MILES SOUTH OF
CENTERVILLE TO 5 MILES WEST OF EASTON TO 27 MILES SOUTH OF EASTON...
MOVING EAST AT 30 MPH. THE THUNDERSTORMS WILL BE NEAR MATTHEWS...
HAMBLETON AROUND 945 PM...WINDYHILL...TANYARD AROUND 1000 PM...
SMITHVILLE...AGNER AROUND 1015 PM...SEAFORD...MILFORD AROUND 1030
PM...ELLENDALE AND SLAUGHTER BEACH AROUND 1045 PM.

VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THESE STORMS.

EXPECT INTENSE LIGHTNING FROM THESE STORMS. DO NOT SEEK SHELTER UNDER
TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM
APPROACHES.

LAT...LON 3846 7570 3865 7572 3869 7583 3867 7595
      3860 7598 3856 7604 3857 7607 3861 7609
      3861 7611 3866 7619 3873 7618 3892 7603
      3892 7529 3889 7525 3878 7537 3845 7543

FORECASTER:  DRAG

Special weather statement, Jun 22, 10:36 PM EDT, 2 hours 22 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1036 PM EDT TUE JUN 22 2010

DEZ002>004-NJZ021>024-230330-
ATLANTIC NJ-ATLANTIC COASTAL CAPE MAY NJ-CAPE MAY NJ-CUMBERLAND NJ-
DELAWARE BEACHES DE-INLAND SUSSEX DE-KENT DE-
1036 PM EDT TUE JUN 22 2010

...STRONG THUNDERSTORMS WILL AFFECT ATLANTIC...CAPE MAY...
CUMBERLAND...KENT AND SUSSEX COUNTIES...

AT 1031 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 13 MILES SOUTHWEST
OF MILLVILLE TO 17 MILES EAST OF DOVER TO 8 MILES WEST OF
GEORGETOWN...MOVING EAST AT 30 MPH. THE THUNDERSTORMS WILL BE NEAR
NEWPORT...BIVALVE AROUND 1045 PM...LAUREL LAKE...ELDORA AROUND 1100
PM...ESTELL MANOR...SCOTCH BONNET AROUND 1115 PM...CORBIN CITY AND
SEAVILLE AROUND 1130 PM.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THESE STORMS.

THE WARNING ISSUED EARLIER STILL CONTINUES FOR A PORTION OF SOUTHERN
AND CENTRAL DELAWARE.

EXPECT INTENSE LIGHTNING FROM THESE STORMS. DO NOT SEEK SHELTER UNDER
TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM
APPROACHES.

LAT...LON 3856 7568 3903 7534 3898 7529 3893 7530
      3880 7516 3881 7508 3892 7498 3915 7490
      3920 7505 3917 7514 3923 7518 3929 7527
      3929 7532 3934 7532 3939 7468 3915 7467
      3899 7479 3891 7497 3874 7506 3861 7505

FORECASTER: DRAG

Local storm report, Jun 22, 11:42 PM EDT, 1 hour 16 minutes before

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Special weather statement, Jun 22, 11:51 PM EDT, 1 hour 7 minutes before

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Special weather statement, Jun 22, 11:51 PM EDT, 1 hour 7 minutes before

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Special weather statement, Jun 23, 12:58 AM 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 22, 8:05 PM EDT	Special Marine Warning	PHI		25 min
Jun 22, 8:14 PM EDT	Special Weather Statement	PHI	Cape May	61 min
Jun 22, 8:18 PM EDT	Special Weather Statement	PHI	Monmouth	57 min
Jun 22, 8:26 PM EDT	Severe Thunderstorm Warning	PHI	Cape May, Cumberland	49 min
Jun 22, 8:32 PM EDT	Special Marine Warning	PHI		58 min
Jun 22, 8:37 PM EDT	Special Marine Warning	PHI		38 min
Jun 22, 9:16 PM EDT	Special Marine Warning	PHI		59 min
Jun 22, 10:27 PM EDT	Special Marine Warning	PHI		48 min
Jun 22, 10:36 PM EDT	Special Weather Statement	PHI	Cape May, Cumberland	54 min
Jun 22, 11:00 PM EDT	Severe Thunderstorm Warning	PHI	Cape May, Cumberland	35 min
Jun 22, 11:11 PM EDT	Special Marine Warning	PHI		94 min
Jun 23, 3:08 PM EDT	Small Craft Advisory	PHI		29 hr
Jun 22, 8:00 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	30 min
Jun 22, 8:29 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's	46 min
Jun 22, 9:12 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	18 min
Jun 22, 9:33 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's	27 min
Jun 22, 9:39 PM EDT	Special Weather Statement	PHI	Caroline	66 min
Jun 22, 9:46 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	59 min
Jun 22, 10:49 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	41 min
Jun 22, 11:51 PM EDT	Special Weather Statement	PHI	Sussex	54 min

Nearby

Special Weather Statements in Delaware, 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.