Alert archive / Maryland / Special Weather Statements in 2016

Special Weather Statement, NWS Philadelphia/Mount Holly

July 30, 2016Kent County, Queen Anne's County, Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 30, 2016, 9:46 PM EDT for Kent County, Queen Anne's County, Talbot County, Maryland. It was in force for 44 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 30, 2016, 9:46 PM EDT (01:46 UTC)
Expired: Jul 30, 2016, 10:30 PM EDT
In force: 44 min
Issued by: NWS Philadelphia/Mount Holly

Counties Kent County, MD, Queen Anne's County, MD, Talbot County, MD

The radar

The Dover AFB radar (KDOX), 69 km from the middle of the area, began a volume at 01:48 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, 1.8 hours before the alert went out and 134 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: 83 J/kg
Mixed-layer CIN: -153 J/kg
Mixed-layer LCL: 1003 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 62 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

687 
WWUS81 KPHI 310146
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
946 PM EDT SAT JUL 30 2016
 
MDZ008-012-015-019-020-310230-
CECIL-CAROLINE-TALBOT-KENT-QUEEN ANNE'S-
946 PM EDT SAT JUL 30 2016

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT KENT...TALBOT...
SOUTHEASTERN CECIL...QUEEN ANNE'S AND NORTHWESTERN CAROLINE
COUNTIES...

AT 946 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS ALONG A LINE
EXTENDING FROM NEAR NEWTOWN TO NEAR OVERTON TO NEAR CHESAPEAKE
BEACH...AND MOVING EAST AT 20 MPH.

WIND GUSTS UP TO 40 MPH ADN PEA SIZE HAIL ARE POSSIBLE WITH THIS
STORM.

HEAVY RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE
PONDING ON ROADWAYS AND POOR DRAINAGE AREAS. DO NOT DRIVE YOUR
VEHICLE THROUGH HIGH WATER.

OCCASIONAL CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM
AND COULD INCREASE. LIGHTNING CAN STRIKE 15 MILES AWAY FROM A
THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE.

LOCATIONS IMPACTED INCLUDE...
EASTON...CENTERVILLE...TALBOT...CHESTERTOWN...CENTREVILLE...
ROMANCOKE...OAKLAND...RIDGELY...ROCK HALL...ST. MICHAELS...
CHURCH HILL...CECILTON...OXFORD...MILLINGTON...SUDLERSVILLE...
BETTERTON...QUEEN ANNE...OLD TOWN...KENNEDYVILLE AND STARR.

LAT...LON 3894 7636 3904 7631 3898 7628 3900 7617
      3915 7628 3932 7618 3945 7600 3947 7578
      3912 7576 3864 7613 3871 7628 3878 7629
      3867 7634 3875 7637 3886 7626 3879 7620
      3881 7620 3897 7625 3884 7637 3885 7638
TIME...MOT...LOC 0146Z 262DEG 17KT 3933 7620 3909 7620 3872 7657 
$$

ROBERTSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 8:15 PM EDT	Areal Flood Advisory	PHI	Hunterdon	4 hr
Jul 30, 10:19 PM EDT	Areal Flood Warning	PHI	Mercer, Middlesex, Somerset	7 hr
Jul 30, 10:32 PM EDT	Areal Flood Warning	PHI	Hunterdon	4 hr
Jul 30, 10:54 PM EDT	Special Weather Statement	PHI	Cumberland, Gloucester, Salem	36 min
Jul 31, 6:31 AM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Hunterdon, Mercer	44 min
Jul 31, 6:49 AM EDT	River Flood Warning	PHI	Somerset	25 hr
Jul 31, 7:04 AM EDT	Flash Flood Warning	PHI	Burlington, Ocean	4 hr
Jul 31, 7:19 AM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Mercer	3 hr
Jul 31, 7:22 AM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Somerset	4 hr
Jul 31, 7:48 AM EDT	Areal Flood Advisory	PHI	Burlington, Ocean	4 hr
Jul 31, 8:21 AM EDT	Flash Flood Warning	PHI	Hunterdon	7 hr
Jul 31, 9:59 AM EDT	Special Marine Warning	PHI		61 min
Jul 31, 10:08 AM EDT	Areal Flood Advisory	PHI	Atlantic, Cape May, Cumberland	4 hr
Jul 31, 10:17 AM EDT	Areal Flood Advisory	PHI	Middlesex, Morris, Somerset	4 hr
Jul 31, 11:04 AM EDT	Areal Flood Warning	PHI	Hunterdon, Somerset	9 hr
Jul 31, 11:53 AM EDT	Flash Flood Warning	PHI	Hunterdon, Somerset	4 hr
Jul 31, 12:28 PM EDT	Flash Flood Watch	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 2 more	38 hr
Jul 31, 12:44 PM EDT	Areal Flood Advisory	PHI	Monmouth	4 hr
Jul 31, 2:06 PM EDT	Flash Flood Warning	PHI	Monmouth	4 hr
Jul 31, 2:41 PM EDT	Special Weather Statement	PHI	Mercer	49 min
Jul 31, 2:53 PM EDT	Special Weather Statement	PHI	Ocean	22 min
Jul 31, 7:34 PM EDT	Areal Flood Advisory	PHI	Warren	4 hr
Jul 31, 12:34 PM EDT	Areal Flood Advisory	PHI	Monroe, Northampton	4 hr
Jul 31, 6:35 PM EDT	Areal Flood Advisory	PHI	Monroe	4 hr
Jul 30, 9:07 PM EDT	Severe Thunderstorm Warning	PHI	Cecil, Kent, Queen Anne's, Talbot	38 min

Nearby

Special Weather Statements in Maryland, 2016 Every special weather statement in 2016

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.