Alert archive / Maryland / Special Weather Statements in 2011
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Jul 11, 2011, 9:25 PM EDT for Queen Anne's County, Talbot County, Maryland. It was in force for 65 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 11, 2011, 9:25 PM EDT (01:25 UTC)
- Expired
- Jul 11, 2011, 10:30 PM EDT
- In force
- 65 min
- Issued by
- NWS Philadelphia/Mount Holly
Counties Queen Anne's County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 70 km from the middle of the area, began a volume at 01:25 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 00:00Z, 1.4 hours before the alert went out and 100 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
- 3066 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 1246 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.0
The text
As transmitted, in the capitals the NWS used until 2016.
492
WWUS81 KPHI 120125
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
925 PM EDT MON JUL 11 2011
MDZ015-019-020-120230-
CAROLINE MD-QUEEN ANNE'S MD-TALBOT MD-
925 PM EDT MON JUL 11 2011
...STRONG THUNDERSTORMS WILL AFFECT CAROLINE...QUEEN ANNE'S AND
TALBOT COUNTIES...
AT 921 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 19 MILES SOUTHEAST
OF BALTIMORE TO 52 MILES WEST OF EASTON...MOVING EAST AT 35 MPH. THE
THUNDERSTORMS WILL BE NEAR CHESTER AND STEVENSVILLE SOUTH AROUND 945
PM...WYE MILLS AND TILGHMAN ISLAND AROUND 1000 PM...SKIPTON AND
JUMPTOWN AROUND 1015 PM AND GOLDSBORO AROUND 1030 PM.
WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THESE STORMS.
EXPECT INTENSE LIGHTNING FROM THESE STORMS. DO NOT SEEK SHELTER UNDER
TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM
APPROACHES.
LAT...LON 3873 7625 3867 7636 3874 7635 3877 7640
3875 7635 3887 7625 3882 7621 3883 7620
3894 7624 3890 7624 3893 7628 3884 7638
3885 7639 3905 7631 3898 7621 3907 7618
3906 7574 3864 7614
$$
MPDThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 9:49 PM EDT | Special Weather Statement | PHI | Chester, Delaware, Philadelphia | 56 min |
| Jul 11, 9:11 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 64 min |
| Jul 11, 9:33 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 57 min |
| Jul 11, 10:28 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 33 min |
Nearby
Special Weather Statements in Maryland, 2011Every special weather statement in 2011
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.