Alert archive / Maryland / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

July 26, 2021Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 26, 2021, 3:24 PM EDT for Talbot County, Maryland. It was in force for 51 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 26, 2021, 3:24 PM EDT (19:24 UTC)
Expired
Jul 26, 2021, 4:15 PM EDT
In force
51 min
Issued by
NWS Philadelphia/Mount Holly

County Talbot County, MD

The radar

The Dover AFB radar (KDOX), 73 km from the middle of the area, began a volume at 19:28 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, 7.4 hours before the alert went out and 101 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 2021-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 448 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2021-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 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
448 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1196 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
61 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

716 
WWUS81 KPHI 261924
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
324 PM EDT Mon Jul 26 2021

MDZ019-262015-
Talbot-
324 PM EDT Mon Jul 26 2021

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL TALBOT COUNTY...

At 322 PM EDT, a strong thunderstorm was located near Herring Bay, 
moving east at 25 mph.

Wind gusts up to 40 mph are possible with this storm.

Locations impacted include...
Easton, Trappe, St. Michaels, Oxford, Hambleton and Tilghman Island. 

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 3876 7633 3881 7631 3878 7600 3862 7608
      3862 7611 3871 7623 3876 7622 3876 7625
      3871 7628 3878 7629 3877 7632 3876 7632
      3867 7634 3874 7634 3875 7638 3875 7634
      3877 7638
TIME...MOT...LOC 1922Z 281DEG 22KT 3875 7647 

$$

PO

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 12:38 AM EDTSpecial Weather StatementPHINew Castle52 min
Jul 26, 1:05 AM EDTSevere Thunderstorm WarningPHIKent, New Castle40 min
Jul 26, 12:40 AM EDTSpecial Weather StatementPHIKent50 min

Nearby

Special Weather Statements in Maryland, 2021Every special weather statement in 2021

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.