Alert archive / Maryland / Special Weather Statements in 2012
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Sep 1, 2012, 9:27 PM EDT for Caroline County, Queen Anne's County, Talbot County, Maryland. It was in force for 93 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
- Sep 1, 2012, 9:27 PM EDT (01:27 UTC)
- Expired
- Sep 1, 2012, 11:00 PM EDT
- In force
- 93 min
- Issued by
- NWS Philadelphia/Mount Holly
Counties 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 01:27 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, 1.5 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.
- Mixed-layer CAPE
- 2794 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1142 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
130
WWUS81 KPHI 020127
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
927 PM EDT SAT SEP 1 2012
MDZ012-015-019-020-020300-
CAROLINE MD-KENT MD-QUEEN ANNE'S MD-TALBOT MD-
927 PM EDT SAT SEP 1 2012
...AN AREA OF SHOWERS AND STRONG THUNDERSTORMS WILL AFFECT
CAROLINE...KENT...QUEEN ANNE'S AND TALBOT COUNTIES...
AT 920 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE
LEADING EDGE OF SHOWERS AND STRONG THUNDERSTORMS ALONG A LINE
EXTENDING FROM 13 MILES SOUTHEAST OF BALTIMORE TO 34 MILES SOUTHEAST
OF BALTIMORE TO 59 MILES SOUTH OF BALTIMORE...MOVING SOUTHEAST AT 15
MPH. THE THUNDERSTORMS WILL BE NEAR ROCK HALL...TILGHMAN ISLAND
AROUND 945 PM...ST. MICHAELS AROUND 1000 PM...OVERTON...COPPERVILLE
AROUND 1015 PM...CENTREVILLE...QUEENSTOWN AROUND 1030 PM...WYE MILLS
AND STARR AROUND 1045 PM.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. DO
NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS
WHEN A THUNDERSTORM APPROACHES.
VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL POOR DRAINAGE AREAS. WIND GUSTS TO AROUND
30 MPH ARE POSSIBLE WITH THESE STORMS.
LAT...LON 3872 7626 3867 7635 3877 7640 3875 7635
3887 7625 3881 7621 3882 7620 3894 7624
3890 7625 3892 7628 3884 7638 3904 7632
3899 7627 3900 7618 3903 7625 3919 7626
3888 7575 3865 7572 3869 7590 3857 7604
$$
TFGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 2, 1:09 PM EDT | Areal Flood Advisory | PHI | Cumberland, Salem | 2 hr |
| Sep 2, 5:14 PM EDT | Special Weather Statement | PHI | Middlesex, Monmouth, Somerset | 2 hr |
| Sep 2, 5:38 PM EDT | Areal Flood Advisory | PHI | Middlesex, Monmouth | 3 hr |
| Sep 2, 7:37 PM EDT | Special Weather Statement | PHI | Monmouth | 113 min |
| Sep 2, 12:25 AM EDT | Special Weather Statement | PHI | Sussex | 95 min |
| Sep 2, 12:40 PM EDT | Areal Flood Advisory | PHI | New Castle | 83 min |
| Sep 2, 3:00 PM EDT | Areal Flood Advisory | PHI | Sussex | 2 hr |
| Sep 2, 3:38 PM EDT | Flash Flood Warning | PHI | Sussex | 3 hr |
| Sep 2, 4:51 PM EDT | Areal Flood Advisory | PHI | Sussex | 89 min |
| Sep 1, 8:07 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 38 min |
| Sep 1, 8:47 PM EDT | Special Weather Statement | PHI | Caroline, Queen Anne's | 88 min |
| Sep 1, 10:34 PM EDT | Special Weather Statement | PHI | Caroline, Talbot | 86 min |
| Sep 1, 11:44 PM EDT | Special Weather Statement | PHI | Wicomico | 61 min |
| Sep 2, 3:17 PM EDT | Areal Flood Advisory | PHI | Caroline | 118 min |
| Sep 2, 3:57 PM EDT | Flash Flood Warning | PHI | Caroline | 2 hr |
| Sep 2, 6:33 PM EDT | Special Weather Statement | PHI | Kent | 117 min |
Nearby
Special Weather Statements in Maryland, 2012Every special weather statement in 2012
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.