Alert archive / Maryland / Special Weather Statements in 2016

Special Weather Statement, NWS Philadelphia/Mount Holly

April 7, 20165 counties in Maryland; Kent County, New Castle County, Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this special weather statement at Apr 7, 2016, 10:49 AM EDT for 5 counties in Maryland; Kent County, New Castle County, Sussex County, Delaware. It was in force for 86 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 7, 2016, 10:49 AM EDT (14:49 UTC)
Expired: Apr 7, 2016, 12:15 PM EDT
In force: 86 min
Issued by: NWS Philadelphia/Mount Holly

Counties Kent County, DE, New Castle County, DE, Sussex County, DE, Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD

The radar

The Dover AFB radar (KDOX), 36 km from the middle of the area, began a volume at 14:53 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.

What was reported inside it

Time	Report	Where	Remark
Apr 7, 12:10 PM EDT	TSTM WND GST 46	North East, MD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 2.8 hours before the alert went out and 59 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: 32 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 605 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 299 m²/s²
0-3 km storm-relative helicity: 259 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

390 
WWUS81 KPHI 071449
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1049 AM EDT THU APR 7 2016
 
DEZ001>004-MDZ008-012-015-019-020-071615-
DELAWARE BEACHES-KENT-INLAND SUSSEX-NEW
CASTLE-CECIL-CAROLINE-TALBOT-KENT-QUEEN ANNE'S-
1049 AM EDT THU APR 7 2016

...A LINE OF SHOWERS WILL AFFECT NEW CASTLE...KENT...SUSSEX...KENT...
TALBOT...CECIL...QUEEN ANNE'S...AND CAROLINE COUNTIES...

AT 1045 AM EDT...A LINE OF SHOWERS WAS ALONG A LINE EXTENDING FROM
MILFORD MILL TO NEAR SHADY SIDE TO NEAR FLAG HARBOR TO NEAR TALL
TIMBERS...AND MOVING NORTHEAST AT 40 MPH.

WIND GUSTS UP TO 40 MPH ARE POSSIBLE WITH THESE SHOWERS. HEAVIER
RAINFALL EMBEDDED WITHIN THE LINE OF SHOWERS WILL DROP AROUND ONE
QUARTER TO ONE HALF OF AN INCH OF RAIN, WHICH MAY CAUSE SOME PONDING
OF WATER IN LOW LYING AREAS AND ON ROADWAYS. 

LOCATIONS IMPACTED INCLUDE...
WILMINGTON...DOVER...NEWARK...MIDDLETOWN...EASTON...ELKTON...GEORGETOWN...
CENTERVILLE...CALVERT...SMYRNA...MILFORD...SEAFORD...ELSMERE...NEW CASTLE...
CHESTERTOWN...DENTON...CENTREVILLE...MILLSBORO...LAUREL AND NORTH EAST.

LAT...LON 3846 7570 3869 7577 3859 7599 3875 7635
      3879 7619 3894 7621 3892 7633 3886 7637
      3917 7628 3943 7599 3971 7623 3972 7577
      3984 7559 3984 7550 3946 7559 3858 7510
      3860 7506 3851 7505 3845 7530
TIME...MOT...LOC 1445Z 236DEG 36KT 3933 7678 3883 7657 3849 7644 3819
7655
$$

MEOLA

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 8:07 PM EDT	Coastal Flood Advisory	PHI	Salem	5 hr
Apr 7, 3:30 AM EDT	Wind Advisory	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 3 more	12 hr
Apr 7, 3:41 AM EDT	Gale Warning	PHI		14 hr
Apr 7, 12:22 PM EDT	Special Weather Statement	PHI	Camden, Cumberland, Gloucester, Salem	38 min
Apr 7, 1:06 PM EDT	Special Weather Statement	PHI	Burlington, Camden, Gloucester	54 min
Apr 7, 1:34 PM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	56 min
Apr 7, 1:49 PM EDT	Special Weather Statement	PHI	Middlesex	56 min
Apr 7, 3:33 PM EDT	Small Craft Advisory	PHI		33 hr
Apr 7, 3:51 PM EDT	Special Marine Warning	PHI		39 min
Apr 7, 3:56 PM EDT	Special Weather Statement	PHI	Cape May	49 min
Apr 7, 4:24 PM EDT	Special Marine Warning	PHI		51 min
Apr 7, 6:42 PM EDT	Special Marine Warning	PHI		48 min
Apr 7, 7:08 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May, Cumberland	37 min
Apr 7, 7:29 PM EDT	Special Marine Warning	PHI		46 min
Apr 7, 7:40 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	50 min
Apr 7, 12:08 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	37 min
Apr 7, 1:03 PM EDT	Special Weather Statement	PHI	Bucks, Delaware, Montgomery, Philadelphia	42 min
Apr 7, 5:31 PM EDT	Special Weather Statement	PHI	Kent	44 min
Apr 7, 5:48 PM EDT	Special Weather Statement	PHI	Caroline, Queen Anne's, Talbot	42 min
Apr 7, 3:16 PM EDT	Special Weather Statement	PHI	Sussex	44 min
Apr 7, 6:19 PM EDT	Special Weather Statement	PHI	New Castle	56 min
Apr 7, 6:27 PM EDT	Special Weather Statement	PHI	Kent, Sussex	48 min
Apr 7, 6:37 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle, Sussex	38 min

Nearby

Special Weather Statements in Maryland, 2016 Special Weather Statements in Delaware, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.