Alert archive / Maryland / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 199, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 15, 2012, 7:16 PM EDT for Queen Anne's County, Talbot County, Maryland. It was in force for 35 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
- Aug 15, 2012, 7:16 PM EDT (23:16 UTC)
- Expired
- Aug 15, 2012, 7:51 PM EDT
- In force
- 35 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Queen Anne's County, MD, Talbot County, MD
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 15, 7:23 PM EDT | HAIL 0.5 | Kent Island Estates, MD |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 11.3 hours before the alert went out and 68 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
- 426 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 828 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
046
WUUS51 KPHI 152316
SVRPHI
MDC035-041-160015-
/O.NEW.KPHI.SV.W.0199.120815T2316Z-120816T0015Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
716 PM EDT WED AUG 15 2012
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN TALBOT COUNTY IN EASTERN MARYLAND...
SOUTHWESTERN QUEEN ANNE'S COUNTY IN NORTHEAST MARYLAND...
* UNTIL 815 PM EDT
* AT 711 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
ROMANCOKE...OR 30 MILES SOUTHEAST OF BALTIMORE...AND MOVING EAST AT
10 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
ROMANCOKE AROUND 725 PM EDT...
ROMANCOKE AROUND 730 PM EDT...
TALBOT AROUND 750 PM EDT...
6 MILES NORTH OF ST. MICHAELS AROUND 805 PM EDT...
COPPERVILLE AROUND 815 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
&&
LAT...LON 3898 7635 3892 7609 3877 7621 3879 7633
3883 7632 3887 7626 3881 7621 3882 7620
3893 7623 3894 7624 3890 7625 3892 7628
3889 7627 3890 7632 3886 7632 3883 7637
3884 7638
TIME...MOT...LOC 2316Z 281DEG 9KT 3890 7637
$$
MPD1 follow-up statement
853
WWUS51 KPHI 152351
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
751 PM EDT WED AUG 15 2012
MDC035-041-160002-
/O.CAN.KPHI.SV.W.0199.000000T0000Z-120816T0015Z/
TALBOT MD-QUEEN ANNE'S MD-
751 PM EDT WED AUG 15 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN QUEEN ANNE'S AND
NORTHWESTERN TALBOT COUNTIES IS CANCELLED...
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 3898 7635 3892 7609 3877 7621 3879 7633
3883 7632 3887 7626 3881 7621 3882 7620
3893 7623 3894 7624 3890 7625 3892 7628
3889 7627 3890 7632 3886 7632 3883 7637
3884 7638
TIME...MOT...LOC 2352Z 281DEG 9KT 3888 7626
$$
MPDThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 10:37 PM EDT | Special Weather Statement | PHI | Kent | 53 min |
| Aug 14, 11:40 PM EDT | Special Weather Statement | PHI | Cecil | 95 min |
| Aug 15, 6:55 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 49 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2012Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.