Alert archive / Maryland / Special Weather Statements in 2019

Special Weather Statement, NWS Philadelphia/Mount Holly

October 27, 2019Kent County, Delaware; Caroline County, Queen Anne's County, Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this special weather statement at Oct 27, 2019, 11:13 AM EDT for Kent County, Delaware; Caroline County, Queen Anne's County, Talbot County, Maryland. It was in force for 47 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, 2019, 11:13 AM EDT (15:13 UTC)
Expired
Oct 27, 2019, 12:00 PM EDT
In force
47 min
Issued by
NWS Philadelphia/Mount Holly

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

The radar

The Dover AFB radar (KDOX), 66 km from the middle of the area, began a volume at 15:14 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, 3.2 hours before the alert went out and 105 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 2019-10-27Temperature 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 2019-10-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 665 square meters per square second.19395878Sfc1 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
1178 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
665 m²/s²
0-3 km storm-relative helicity
909 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

280 
WWUS81 KPHI 271513
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
1113 AM EDT Sun Oct 27 2019

DEZ002-MDZ012-015-019-020-271600-
Kent-Queen Anne's-Talbot-Kent-Caroline-
1113 AM EDT Sun Oct 27 2019

...HEAVY SHOWERS AND ISOLATED STRONG THUNDERSTORMS WILL AFFECT 
KENT...TALBOT...QUEEN ANNE'S...CENTRAL CAROLINE AND SOUTHERN KENT 
COUNTIES...

At 1110 AM EDT, an area of heavy showers and isolated strong 
thunderstorms continues to move across the area. These are moving 
northeast at around 60 mph.

Wind gusts up to 40 mph are possible with some of the heavier 
showers and isolated storms.

Heavy rainfall is occurring, and may cause localized flooding. Do 
not drive your vehicle through flooded roadways.

Locations impacted include...
Dover, Easton, Centerville, Talbot, Smyrna, Chestertown, Denton,
Centreville, Harrington, Camden, Clayton, Greensboro, Oakland,
Ridgely, Cheswold, St. Michaels, Church Hill, Oxford, Millington and
Sudlersville.

LAT...LON 3904 7631 3900 7617 3907 7623 3921 7624
      3933 7550 3906 7530 3867 7617 3876 7622
      3871 7627 3877 7633 3886 7626 3879 7620
      3879 7619 3897 7625 3889 7629 3890 7629
      3893 7631 3896 7631 3884 7637 3885 7638
TIME...MOT...LOC 1510Z 236DEG 61KT 3894 7622 

$$

Gorse

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 27, 11:54 AM EDTCoastal Flood StatementPHIOcean5 hr
Oct 27, 12:07 PM EDTSpecial Weather StatementPHICamden, Gloucester, Mercer53 min
Oct 27, 10:59 AM EDTSpecial Weather StatementPHIChester, Delaware, Montgomery61 min

Nearby

Special Weather Statements in Maryland, 2019Special Weather Statements in Delaware, 2019Every special weather statement in 2019

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.