Alert archive / Maryland / Special Weather Statements in 2018

Special Weather Statement, NWS Philadelphia/Mount Holly

November 6, 2018Kent County, Delaware; Caroline County, Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this special weather statement at Nov 6, 2018, 12:13 PM EST for Kent County, Delaware; Caroline County, Talbot County, Maryland. It was in force for 62 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
Nov 6, 2018, 12:13 PM EST (17:13 UTC)
Expired
Nov 6, 2018, 1:15 PM EST
In force
62 min
Issued by
NWS Philadelphia/Mount Holly

Counties Kent County, DE, Caroline County, MD, Talbot County, MD

The radar

The Dover AFB radar (KDOX), 56 km from the middle of the area, began a volume at 17:12 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, 5.2 hours before the alert went out and 115 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-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2018-11-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2018-11-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 375 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
502 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
375 m²/s²
0-3 km storm-relative helicity
468 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

581 
WWUS81 KPHI 061713
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
1213 PM EST TUE NOV 6 2018

DEZ002-MDZ015-019-020-061815-
Kent-Queen Anne's-Talbot-Caroline-
1213 PM EST TUE NOV 6 2018

...A LINE OF GUSTY SHOWERS WILL AFFECT KENT...TALBOT...SOUTHEASTERN 
QUEEN ANNE'S AND CAROLINE COUNTIES...

At 1211 PM EST, radar indicated gusty showers were located along a 
line extending from Smyrna to Talbot to near Breezy Point to near 
Sheridan Point. Movement was east at 40 mph.

Winds up to 45 mph are possible along portions of the line, and a 
thunderstorm could develop anytime.

Locations impacted include...
Dover, Easton, Talbot, Smyrna, Denton, Harrington, Camden, Clayton,
Greensboro, Oakland, Ridgely, Cheswold, Trappe, St. Michaels,
Preston, Oxford, Goldsboro, Queen Anne, Woodside and Viola.

Brief heavy rain is also occurring, and may cause localized 
flooding.

LAT...LON 3876 7633 3883 7630 3885 7627 3879 7620
      3890 7620 3929 7566 3936 7549 3925 7540
      3906 7541 3866 7596 3860 7599 3858 7605
      3869 7619 3868 7619 3867 7620 3876 7622
      3872 7630 3878 7629 3867 7634 3876 7638
TIME...MOT...LOC 1711Z 255DEG 34KT 3932 7559 3883 7625 3866 7648 3841
7664

$$

Gorse

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 6, 4:32 AM ESTCoastal Flood AdvisoryPHIBurlington, Camden, Gloucester, Mercer, Salem11 hr
Nov 6, 11:47 AM ESTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 3 more2 hr
Nov 6, 12:53 PM ESTSpecial Weather StatementPHIAtlantic, Burlington, Cumberland, Monmouth, Ocean52 min
Nov 6, 1:36 PM ESTSpecial Weather StatementPHIAtlantic, Ocean39 min
Nov 6, 1:42 PM ESTSpecial Marine WarningPHI32 min
Nov 6, 1:30 PM ESTSpecial Weather StatementPHISussex60 min
Nov 6, 1:48 PM ESTSevere Thunderstorm WarningPHISussex42 min
Nov 6, 2:25 PM ESTSpecial Weather StatementPHISussex65 min

Nearby

Special Weather Statements in Maryland, 2018Special Weather Statements in Delaware, 2018Every special weather statement in 2018

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.