Alert archive / Maryland / Tornado Warnings in 2012
Tornado Warning 29, NWS Baltimore/Washington
NWS Baltimore/Washington issued this tornado warning at Aug 7, 2012, 5:57 PM EDT for 4 counties in Maryland. It was in force for 33 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
- Aug 7, 2012, 5:57 PM EDT (21:57 UTC)
- Expired
- Aug 7, 2012, 6:30 PM EDT
- In force
- 33 min
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
Counties Calvert County, MD, Charles County, MD, Prince George's County, MD, Saint Mary's County, MD
The radar
The Sterling radar (KLWX), 87 km from the middle of the area, began a volume at 22:00 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 12:00Z, 10.0 hours before the alert went out and 79 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
- 1593 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
557 WFUS51 KLWX 072157 TORLWX MDC009-017-033-037-072230- /O.NEW.KLWX.TO.W.0029.120807T2157Z-120807T2230Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 557 PM EDT TUE AUG 7 2012 THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A * TORNADO WARNING FOR... EASTERN CHARLES COUNTY IN SOUTHERN MARYLAND... NORTHERN ST. MARYS COUNTY IN SOUTHERN MARYLAND... SOUTHEASTERN PRINCE GEORGES COUNTY IN CENTRAL MARYLAND... WESTERN CALVERT COUNTY IN SOUTHERN MARYLAND... * UNTIL 630 PM EDT * AT 556 PM EDT...A CONFIRMED TORNADO WAS REPORTED NEAR HALLOWING POINT...AND WAS MOVING NORTHWEST AT 5 MPH. THIS TORNADO HAS BEEN CONFIRMED BY LAW ENFORCEMENT. * LOCATIONS IMPACTED INCLUDE... HALLOWING POINT... GOLDEN BEACH... PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING AND AVOID WINDOWS. IF OUTDOORS OR IN A MOBILE HOME OR VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 3851 7677 3858 7668 3852 7656 3843 7666 TIME...MOT...LOC 2158Z 122DEG 3KT 3850 7665 $$
2 follow-up statements
774 WWUS51 KLWX 072213 SVSLWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 613 PM EDT TUE AUG 7 2012 MDC009-017-033-037-072230- /O.CON.KLWX.TO.W.0029.000000T0000Z-120807T2230Z/ CHARLES MD-ST. MARYS MD-PRINCE GEORGES MD-CALVERT MD- 613 PM EDT TUE AUG 7 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR CALVERT...PRINCE GEORGES...ST. MARYS AND CHARLES COUNTIES... AT 609 PM EDT...A CONFIRMED TORNADO WAS LOCATED NEAR HALLOWING POINT...AND WAS MOVING NORTHWEST AT 5 MPH. THIS TORNADO HAS BEEN CONFIRMED BY LAW ENFORCEMENT. LOCATIONS IMPACTED INCLUDE... HALLOWING POINT... BENEDICT... GOLDEN BEACH... TRAINED SPOTTERS AND LAW ENFORCEMENT REPORTED A WATERSPOUT ON THE PATUXENT RIVER NEAR THE BENEDICT BRIDGE. THIS WATERSPOUT COULD MOVE ONSHORE AT ANY TIME. TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING AND AVOID WINDOWS. IF OUTDOORS OR IN A MOBILE HOME OR VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 3850 7674 3857 7668 3853 7659 3845 7665 TIME...MOT...LOC 2212Z 122DEG 3KT 3851 7666 $$
724 WWUS51 KLWX 072224 SVSLWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 624 PM EDT TUE AUG 7 2012 MDC009-017-033-037-072234- /O.EXP.KLWX.TO.W.0029.000000T0000Z-120807T2230Z/ CHARLES MD-ST. MARYS MD-PRINCE GEORGES MD-CALVERT MD- 624 PM EDT TUE AUG 7 2012 ...THE TORNADO WARNING WILL EXPIRE AT 630 PM EDT FOR CALVERT...PRINCE GEORGES...ST. MARYS AND CHARLES COUNTIES... THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED. THUS THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE. LAT...LON 3850 7674 3857 7668 3853 7659 3845 7665 TIME...MOT...LOC 2224Z 122DEG 3KT 3852 7667 $$ KONARIK
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 8:16 AM EDT | Special Weather Statement | LWX | Saint Mary's | 59 min |
Nearby
Tornado Warnings in Maryland, 2012Every tornado warning in 2012Tornadoes 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.