Alert archive / Maryland / Special Weather Statements in 2010

Special Weather Statement, NWS Philadelphia/Mount Holly

October 27, 2010Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this special weather statement at Oct 27, 2010, 8:37 PM EDT for Talbot County, Maryland. It was in force for 53 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: Oct 27, 2010, 8:37 PM EDT (00:37 UTC)
Expired: Oct 27, 2010, 9:30 PM EDT
In force: 53 min
Issued by: NWS Philadelphia/Mount Holly

County Talbot County, MD

The radar

The Dover AFB radar (KDOX), 51 km from the middle of the area, began a volume at 00:37 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, 0.6 hours before the alert went out and 94 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: 660 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 983 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 157 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

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 Oct 27, 8:14 PM EDT, 23 minutes earlier.

Area forecast discussion, Oct 27, 8:14 PM EDT, 23 minutes before

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Hazardous weather outlook, Oct 27, 8:02 PM EDT, 35 minutes before

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In the hours before

Special weather statement, Oct 27, 2:37 PM EDT, 6 hours before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
237 PM EDT WED OCT 27 2010

MDZ015-019-020-271930-
CAROLINE MD-QUEEN ANNE'S MD-TALBOT MD-
237 PM EDT WED OCT 27 2010

...A STRONG THUNDERSTORM WILL AFFECT CAROLINE...QUEEN ANNE'S AND
TALBOT COUNTIES...

AT 235 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 15 MILES WEST OF EASTON...MOVING EAST NORTHEAST
AT 35 TO 40 MPH. THE THUNDERSTORM WILL BE NEAR ST. MICHAELS...OXFORD
AROUND 245 PM...EASTON...TANYARD AROUND 300 PM...HARMONY...MATTHEWS
AROUND 315 PM...SMITHVILLE AND AGNER AROUND 330 PM.

VERY HEAVY RAIN AND WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THIS
STORM.

LAT...LON 3867 7622 3873 7625 3870 7627 3867 7636
      3874 7635 3877 7640 3879 7638 3875 7635
      3883 7631 3885 7638 3883 7630 3887 7625
      3882 7621 3888 7621 3896 7574 3866 7572
      3869 7586 3864 7596 3863 7612

RPW

Special weather statement, Oct 27, 3:08 PM EDT, 5 hours 29 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
308 PM EDT WED OCT 27 2010

DEZ002-NJZ021-272000-
CUMBERLAND NJ-KENT DE-
308 PM EDT WED OCT 27 2010

...STRONG THUNDERSTORMS WILL AFFECT CUMBERLAND AND KENT COUNTIES...

AT 305 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 13 MILES NORTH OF
DOVER TO 2 MILES SOUTHEAST OF DOVER...MOVING EAST NORTHEAST AT 35
TO 40 MPH. THE THUNDERSTORMS WILL BE NEAR PORT NORRIS...NEWPORT
AROUND 330 PM...SOUTH VINELAND AND LAUREL LAKE AROUND 345 PM.

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

LAT...LON 3907 7555 3931 7555 3934 7546 3927 7540
      3930 7533 3936 7539 3949 7498 3918 7501
      3920 7507 3917 7514 3920 7519 3923 7518
      3929 7527 3928 7530 3930 7533 3927 7540
      3924 7538 3908 7540

RPW

Special weather statement, Oct 27, 3:56 PM EDT, 4 hours 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
356 PM EDT WED OCT 27 2010

NJZ021>023-025-027-272100-
ATLANTIC NJ-CAPE MAY NJ-COASTAL ATLANTIC NJ-CUMBERLAND NJ-
SOUTHEASTERN BURLINGTON NJ-
356 PM EDT WED OCT 27 2010

...A STRONG THUNDERSTORM WILL AFFECT ATLANTIC...BURLINGTON...CAPE MAY
AND CUMBERLAND COUNTIES...

AT 354 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 7 MILES EAST OF MILLVILLE...MOVING EAST AT 35
MPH. THE THUNDERSTORM WILL BE NEAR MAYS LANDING...ESTELL MANOR AROUND
415 PM...POMONA...ABSECON AROUND 430 PM...PORT REPUBLIC AND NEW
GRETNA AROUND 445 PM.

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

WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THIS STORM.

LAT...LON 3937 7446 3938 7446 3937 7448 3927 7499
      3947 7505 3971 7448 3944 7439 3941 7440
      3941 7439 3939 7438

HEAVENER

Special weather statement, Oct 27, 4:32 PM EDT, 4 hours 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
432 PM EDT WED OCT 27 2010

NJZ020-022-025>027-272115-
ATLANTIC NJ-COASTAL ATLANTIC NJ-COASTAL OCEAN NJ-OCEAN NJ-
SOUTHEASTERN BURLINGTON NJ-
432 PM EDT WED OCT 27 2010

...A STRONG THUNDERSTORM WILL AFFECT ATLANTIC...BURLINGTON AND OCEAN
COUNTIES...

AT 430 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 11 MILES NORTH OF ATLANTIC CITY...MOVING EAST AT
45 MPH. THE THUNDERSTORM WILL BE NEAR TUCKERTON AROUND 430 PM...BEACH
HAVEN...NORTH BEACH HAVEN AROUND 445 PM AND BARNEGAT LIGHT AROUND 500
PM.

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

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM.

LAT...LON 3968 7412 3952 7425 3950 7433 3953 7434
      3953 7440 3949 7438 3947 7429 3942 7432
      3940 7439 3969 7450 3980 7417 3975 7418
      3972 7415 3975 7412 3977 7415 3977 7412
      3980 7413 3983 7408

HEAVENER

Special weather statement, Oct 27, 8:37 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
Oct 27, 8:00 PM EDT	Small Craft Advisory	PHI		7 hr
Oct 27, 9:19 PM EDT	Special Weather Statement	PHI	Burlington, Camden, Gloucester	56 min
Oct 27, 10:15 PM EDT	Special Weather Statement	PHI	Monmouth	45 min
Oct 27, 10:36 PM EDT	Special Marine Warning	PHI		24 min
Oct 28, 3:15 AM EDT	Small Craft Advisory for Hazardous Seas	PHI		12 hr
Oct 28, 3:13 PM EDT	Small Craft Advisory	PHI		4 days
Oct 27, 9:06 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Talbot	54 min
Oct 27, 10:48 PM EDT	Special Weather Statement	PHI	Sussex	27 min
Oct 27, 11:10 PM EDT	Special Weather Statement	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.