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 Jul 19, 2012, 7:08 PM EDT for Queen Anne's County, Maryland. It was in force for 52 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 19, 2012, 7:08 PM EDT (23:08 UTC)
- Expired
- Jul 19, 2012, 8:00 PM EDT
- In force
- 52 min
- Issued by
- NWS Philadelphia/Mount Holly
County Queen Anne's County, MD
The radar
The Dover AFB radar (KDOX), 59 km from the middle of the area, began a volume at 23:10 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
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 11.1 hours before the alert went out and 37 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
- 137 J/kg
- Mixed-layer CIN
- -137 J/kg
- Mixed-layer LCL
- 1167 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
672
WWUS81 KPHI 192308
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
708 PM EDT THU JUL 19 2012
MDZ012-015-020-200000-
CAROLINE MD-KENT MD-QUEEN ANNE'S MD-
708 PM EDT THU JUL 19 2012
...SLOW MOVING THUNDERSTORMS WILL AFFECT PORTIONS OF CAROLINE...KENT
AND QUEEN ANNE'S COUNTIES...
AT 701 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS MOVING TOWARD THE SOUTHEAST FROM AROUND 25
MILES NORTH OF EASTON TO AROUND 20 MILES WEST OF DOVER. THE
THUNDERSTORMS WILL DRIFT SLOWLY TOWARD THE DELAWARE BORDER.
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 40 MPH ARE POSSIBLE WITH THESE STORMS.
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.
LAT...LON 3913 7610 3916 7616 3929 7604 3925 7589
3918 7575 3895 7574 3908 7608
$$
MPDThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 8:08 PM EDT | Special Weather Statement | PHI | Atlantic | 22 min |
| Jul 19, 3:04 PM EDT | Small Craft Advisory | PHI | 59 hr | |
| Jul 19, 3:10 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 50 min |
| Jul 19, 3:16 PM EDT | Special Marine Warning | PHI | 30 min | |
| Jul 19, 2:08 PM EDT | Areal Flood Advisory | PHI | New Castle | 112 min |
| Jul 19, 2:39 PM EDT | Special Weather Statement | PHI | New Castle | 66 min |
| Jul 19, 3:05 PM EDT | Areal Flood Advisory | PHI | New Castle | 62 min |
| Jul 19, 4:56 PM EDT | Special Weather Statement | PHI | Sussex | 64 min |
| Jul 19, 6:02 PM EDT | Special Weather Statement | PHI | Kent | 58 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.