Alert archive / Maryland / Special Weather Statements in 2023
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Sep 7, 2023, 8:21 PM EDT for Caroline County, Talbot County, Maryland. It was in force for 24 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
- Sep 7, 2023, 8:21 PM EDT (00:21 UTC)
- Expired
- Sep 7, 2023, 8:45 PM EDT
- In force
- 24 min
- Issued by
- NWS Philadelphia/Mount Holly
- Hail
- 0.75 in
- Wind
- 40
Counties Caroline County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 65 km from the middle of the area, began a volume at 00:22 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 |
|---|---|---|---|
| Sep 7, 8:24 PM EDT | TSTM WND DMG | 2 Ese Copperville, MD | County emergency management reports trees and wires down across Unionville. Time estimated via radar. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 0.4 hours before the alert went out and 107 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.
- Mixed-layer CAPE
- 661 J/kg
- Mixed-layer CIN
- -157 J/kg
- Mixed-layer LCL
- 1589 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
615
WWUS81 KPHI 080021
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
821 PM EDT Thu Sep 7 2023
MDZ015-019-020-080045-
Queen Anne's MD-Talbot MD-Caroline MD-
821 PM EDT Thu Sep 7 2023
...A strong thunderstorm will impact portions of Talbot, south
central Queen Anne's and southern Caroline Counties through 845 PM
EDT...
At 821 PM EDT, Doppler radar was tracking a strong thunderstorm near
Oxford, or near Easton, moving northeast at 35 mph.
HAZARD...Wind gusts up to 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Easton, Denton, Trappe, St. Michaels, Oxford, Queen Anne, Tanyard,
Harmony, Skipton, Copperville, Matthews, Wye Mills, Hambleton,
Griffin, Cordova and Hillsboro.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3882 7624 3879 7622 3879 7619 3888 7620
3901 7612 3885 7577 3862 7611 3869 7618
3867 7620 3868 7621 3871 7622 3870 7623
3871 7623 3876 7622 3876 7625 3871 7627
3873 7630
TIME...MOT...LOC 0021Z 219DEG 30KT 3873 7616
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 9:46 PM EDT | Special Weather Statement | PHI | Sussex | 29 min |
| Sep 8, 6:02 AM EDT | Special Marine Warning | PHI | 40 min | |
| Sep 8, 1:36 PM EDT | Special Weather Statement | PHI | Burlington | 24 min |
| Sep 8, 1:37 PM EDT | Special Weather Statement | PHI | Monmouth | 23 min |
| Sep 8, 1:46 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 44 min |
| Sep 8, 1:50 PM EDT | Special Marine Warning | PHI | 115 min | |
| Sep 8, 1:54 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 51 min |
| Sep 8, 2:27 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth | 48 min |
| Sep 8, 2:30 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Middlesex, Monmouth, Ocean | 45 min |
| Sep 8, 2:33 PM EDT | Areal Flood Advisory | PHI | Burlington, Monmouth, Ocean | 3 hr |
| Sep 8, 2:44 PM EDT | Special Marine Warning | PHI | 18 min | |
| Sep 8, 2:45 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 45 min |
| Sep 8, 2:53 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Somerset | 52 min |
| Sep 8, 3:17 PM EDT | Special Marine Warning | PHI | 58 min | |
| Sep 8, 3:27 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Monmouth, Ocean | 63 min |
| Sep 8, 3:29 PM EDT | Flash Flood Warning | PHI | Burlington, Ocean | 4 hr |
| Sep 8, 3:31 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 44 min |
| Sep 8, 3:36 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 30 min |
| Sep 8, 3:43 PM EDT | Special Weather Statement | PHI | Middlesex | 32 min |
| Sep 8, 3:58 PM EDT | Special Weather Statement | PHI | Somerset | 32 min |
| Sep 8, 4:24 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 51 min |
| Sep 8, 4:27 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 51 min |
| Sep 8, 4:30 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Monmouth, Ocean | 60 min |
| Sep 8, 4:50 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 40 min |
| Sep 8, 5:12 PM EDT | Areal Flood Advisory | PHI | Hunterdon | 3 hr |
| Sep 8, 5:14 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 46 min |
| Sep 8, 5:21 PM EDT | Flash Flood Warning | PHI | Hunterdon | 4 hr |
| Sep 8, 5:34 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 41 min |
| Sep 8, 5:49 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 41 min |
| Sep 8, 6:11 PM EDT | Special Weather Statement | PHI | Warren | 34 min |
| Sep 8, 6:34 PM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 3 hr |
| Sep 7, 8:08 PM EDT | Special Weather Statement | PHI | Chester, Lehigh | 37 min |
| Sep 7, 8:42 PM EDT | Special Weather Statement | PHI | Bucks | 33 min |
| Sep 7, 9:19 PM EDT | Special Weather Statement | PHI | Berks | 26 min |
| Sep 7, 9:37 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 18 min |
| Sep 7, 10:07 PM EDT | Special Weather Statement | PHI | Berks | 38 min |
| Sep 7, 10:38 PM EDT | Areal Flood Advisory | PHI | Berks | 76 min |
| Sep 7, 10:44 PM EDT | Special Weather Statement | PHI | Berks, Lehigh | 61 min |
| Sep 8, 5:16 PM EDT | Areal Flood Advisory | PHI | Chester, Montgomery | 3 hr |
| Sep 8, 5:29 PM EDT | Special Weather Statement | PHI | Montgomery | 31 min |
| Sep 8, 6:00 PM EDT | Special Weather Statement | PHI | Bucks | 30 min |
| Sep 8, 6:16 PM EDT | Special Weather Statement | PHI | Northampton | 29 min |
| Sep 8, 6:24 PM EDT | Special Weather Statement | PHI | Monroe | 36 min |
| Sep 8, 6:29 PM EDT | Special Weather Statement | PHI | Bucks | 31 min |
| Sep 7, 9:14 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 30 min |
| Sep 8, 1:21 PM EDT | Special Weather Statement | PHI | Sussex | 24 min |
| Sep 8, 1:51 PM EDT | Special Weather Statement | PHI | Sussex | 24 min |
| Sep 8, 2:05 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 40 min |
| Sep 8, 2:15 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 45 min |
| Sep 8, 2:46 PM EDT | Special Weather Statement | PHI | Kent | 29 min |
| Sep 8, 2:51 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 39 min |
| Sep 8, 3:27 PM EDT | Special Weather Statement | PHI | Kent, New Castle | 33 min |
| Sep 8, 3:32 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 43 min |
| Sep 7, 8:45 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 26 min |
Nearby
Special Weather Statements in Maryland, 2023Every special weather statement in 2023
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.