Alert archive / Maryland / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 86, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 21, 2007, 5:59 PM EDT for Queen Anne's County, Talbot County, Maryland. It was in force for 61 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
- Jun 21, 2007, 5:59 PM EDT (21:59 UTC)
- Expired
- Jun 21, 2007, 7:00 PM EDT
- In force
- 61 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
Counties Queen Anne's County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 71 km from the middle of the area, began a volume at 21:59 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, 10.0 hours before the alert went out and 72 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1729 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -57 m²/s²
- 0-3 km storm-relative helicity
- 13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KPHI 212201 SVRPHI MDC035-041-212300- /O.NEW.KPHI.SV.W.0086.070621T2159Z-070621T2300Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 559 PM EDT THU JUN 21 2007 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... TALBOT COUNTY IN EASTERN MARYLAND... SOUTHWESTERN QUEEN ANNES COUNTY IN NORTHEAST MARYLAND... * UNTIL 700 PM EDT * AT 554 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 19 MILES NORTHWEST OF STEVENSVILLE TO 35 MILES WEST OF STEVENSVILLE...AND MOVING SOUTHEAST AT 45 MPH. * SEVERE THUNDERSTORMS WILL BE NEAR... CHESTER AND STEVENSVILLE BY 620 PM EDT... GRASONVILLE BY 625 PM EDT... TILGHMAN ISLAND AND ST. MICHAELS BY 635 PM EDT... CORDOVA BY 640 PM EDT... OXFORD AND EASTON BY 645 PM EDT... DAMAGING WINDS UP TO 60 MPH WERE REPORTED AT BALTIMORE-WASHINGTON INTERNATIONAL AIRPORT WITH THIS STORM. THIS IS A DANGEROUS STORM...SEEK SAFE SHELTER AND STAY AWAY FROM WINDOWS LAT...LON 3909 7631 3865 7652 3842 7619 3890 7595 $$ AMC
2 follow-up statements
000 WWUS51 KPHI 212230 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 629 PM EDT THU JUN 21 2007 MDC035-041-212300- /O.CON.KPHI.SV.W.0086.000000T0000Z-070621T2300Z/ QUEEN ANNES MD-TALBOT MD- 629 PM EDT THU JUN 21 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR TALBOT AND SOUTHWESTERN QUEEN ANNES COUNTIES... AT 628 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM GRASONVILLE TO 11 MILES WEST OF TILGHMAN ISLAND... ...MOVING SOUTHEAST AT 45 MPH. SEVERE THUNDERSTORMS WILL BE NEAR... TILGHMAN ISLAND AND ST. MICHAELS BY 635 PM EDT... CORDOVA BY 640 PM EDT... OXFORD AND EASTON BY 645 PM EDT... LAT...LON 3900 7615 3874 7653 3847 7624 3885 7593 $$ AMC
000 WWUS51 KPHI 212259 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 658 PM EDT THU JUN 21 2007 MDC035-041-212308- /O.EXP.KPHI.SV.W.0086.000000T0000Z-070621T2300Z/ QUEEN ANNES MD-TALBOT MD- 658 PM EDT THU JUN 21 2007 ...THE SEVERE THUNDERSTORM WARNING FOR TALBOT AND SOUTHWESTERN QUEEN ANNES COUNTIES EXPIRES AT 700 PM EDT... THE LINE OF SHOWERS AND POSSIBLE THUNDERSTORMS APPEARS TO BE WEAKENING AS IT CONTINUES TO MOVE SOUTHEAST ACROSS THE WESTERN DELMARVA REGION. NO WIND DAMAGE HAS BEEN REPORTED SO FAR. LAT...LON 3900 7615 3874 7653 3847 7624 3885 7593 $$ AMC
Nearby
Severe Thunderstorm Warnings in Maryland, 2007Every severe thunderstorm warning in 2007
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.