Alert archive / Maryland / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 181, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 19, 2011, 6:53 PM EDT for Caroline County, Talbot County, Maryland. It was in force for 38 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, 2011, 6:53 PM EDT (22:53 UTC)
- Expired
- Jul 19, 2011, 7:31 PM EDT
- In force
- 38 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Caroline County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 57 km from the middle of the area, began a volume at 22:53 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, 10.9 hours before the alert went out and 83 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
- 1090 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 1062 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.6
The text
As transmitted, in the capitals the NWS used until 2016.
293
WUUS51 KPHI 192253
SVRPHI
MDC011-041-192345-
/O.NEW.KPHI.SV.W.0181.110719T2253Z-110719T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
653 PM EDT TUE JUL 19 2011
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN CAROLINE COUNTY IN EASTERN MARYLAND...
TALBOT COUNTY IN EASTERN MARYLAND...
THIS INCLUDES THE CITY OF EASTON...
* UNTIL 745 PM EDT
* AT 649 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR EASTON...AND
MOVING SOUTHEAST AT 15 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
EASTON AROUND 705 PM EDT...
HAMBLETON AROUND 715 PM EDT...
TRAPPE AROUND 720 PM EDT...
TANYARD AROUND 725 PM EDT...
WINDYHILL AROUND 730 PM EDT...
WINDYHILL AROUND 735 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...LARGE HAIL...AND CLOUD TO GROUND
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
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 3867 7622 3873 7625 3870 7627 3871 7628
3880 7624 3882 7620 3886 7619 3886 7609
3883 7574 3867 7577 3869 7586 3867 7595
3860 7598 3858 7600
TIME...MOT...LOC 2252Z 293DEG 13KT 3875 7614
$$
JJM1 follow-up statement
037
WWUS51 KPHI 192331
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
731 PM EDT TUE JUL 19 2011
MDC011-041-192340-
/O.CAN.KPHI.SV.W.0181.000000T0000Z-110719T2345Z/
CAROLINE MD-TALBOT MD-
731 PM EDT TUE JUL 19 2011
...THE SEVERE THUNDERSTORM WARNING FOR TALBOT AND SOUTHERN CAROLINE
COUNTIES IS CANCELLED...
THE THUNDERSTORM RESPONSIBLE FOR THIS WARNING NO LONGER POSSES A
THREAT TO THE AREA.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 3867 7622 3873 7625 3870 7627 3871 7628
3880 7624 3882 7620 3886 7619 3886 7609
3883 7574 3867 7577 3869 7586 3867 7595
3860 7598 3858 7600
TIME...MOT...LOC 2330Z 293DEG 13KT 3870 7598
$$
JJMThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 2:13 PM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 92 min |
| Jul 19, 2:29 PM EDT | Excessive Heat Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 5 days |
| Jul 19, 4:25 PM EDT | Special Weather Statement | PHI | Caroline, Kent, Queen Anne's, Talbot | 80 min |
| Jul 19, 6:32 PM EDT | Special Weather Statement | PHI | Caroline, Talbot | 88 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2011Every severe thunderstorm warning 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.