Alert archive / Maryland / Tornado Warnings in 2012

Tornado Warning 26, NWS Baltimore/Washington

June 29, 2012Morgan County, West Virginia; Allegany County, Washington County, Maryland

NWS Baltimore/Washington issued this tornado warning at Jun 29, 2012, 9:14 PM EDT for Morgan County, West Virginia; Allegany County, Washington County, Maryland. It was in force for 19 min. 2 reports 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: Jun 29, 2012, 9:14 PM EDT (01:14 UTC)
Expired: Jun 29, 2012, 9:33 PM EDT
In force: 19 min
Issued by: NWS Baltimore/Washington
Area: Storm-based polygon

Counties Allegany County, MD, Washington County, MD, Morgan County, WV

The radar

The Sterling radar (KLWX), 112 km from the middle of the area, began a volume at 01:14 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.

What was reported inside it

Time	Report	Where	Remark
Jun 29, 9:14 PM EDT	TSTM WND DMG	1 Ssw Pumpkin Center, MD	LARGE TREES DOWN
Jun 29, 9:14 PM EDT	TSTM WND DMG	2 Sw Flintstone, MD	TREES DOWN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 29, 6:34 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 1.2 hours before the alert went out and 119 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 5490 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 1596 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 102 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 12.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

134 
WFUS51 KLWX 300114
TORLWX
MDC001-043-WVC065-300145-
/O.NEW.KLWX.TO.W.0026.120630T0114Z-120630T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
914 PM EDT FRI JUN 29 2012

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN WASHINGTON COUNTY IN NORTH CENTRAL MARYLAND...
  NORTHWESTERN MORGAN COUNTY IN THE PANHANDLE OF WEST VIRGINIA...
  EASTERN ALLEGANY COUNTY IN WESTERN MARYLAND...

* UNTIL 945 PM EDT

* AT 909 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS OVER CENTRAL ALLEGANY COUNTY...OR 8 MILES EAST OF
  CUMBERLAND...AND WAS MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FLINTSTONE...
  LITTLE ORLEANS...
  BELLEGROVE...
  FOREST PARK...

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.

TORNADOES IN HILLY OR MOUNTAINOUS TERRAIN ARE ESPECIALLY DANGEROUS
BECAUSE YOU MAY NOT BE ABLE TO SEE OR HEAR THE TORNADO APPROACH. TAKE
COVER NOW.

&&

LAT...LON 3973 7824 3967 7814 3955 7862 3966 7871
      3973 7857
TIME...MOT...LOC 0114Z 256DEG 23KT 3962 7858

$$

SMZ

2 follow-up statements

586 
WWUS51 KLWX 300122
SVSLWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
922 PM EDT FRI JUN 29 2012

MDC001-043-WVC065-300145-
/O.CON.KLWX.TO.W.0026.000000T0000Z-120630T0145Z/
WASHINGTON MD-MORGAN WV-ALLEGANY MD-
922 PM EDT FRI JUN 29 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR
ALLEGANY...MORGAN AND WASHINGTON COUNTIES...

AT 918 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 9 MILES SOUTHWEST OF INGLESMITH...OR 11 MILES NORTHWEST 
OF FISHERS BRIDGE...AND WAS MOVING EAST NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  BELLEGROVE...
  FOREST PARK...
  HANCOCK...

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.

TORNADOES AT NIGHT ARE DIFFICULT TO SEE AND CONFIRM. TAKE COVER NOW.

&&

LAT...LON 3973 7824 3967 7814 3955 7862 3966 7871
      3973 7857
TIME...MOT...LOC 0122Z 248DEG 42KT 3965 7845

$$

SMZ

050 
WWUS51 KLWX 300133
SVSLWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
933 PM EDT FRI JUN 29 2012

MDC001-043-WVC065-300144-
/O.CAN.KLWX.TO.W.0026.000000T0000Z-120630T0145Z/
WASHINGTON MD-MORGAN WV-ALLEGANY MD-
933 PM EDT FRI JUN 29 2012

...THE TORNADO WARNING IS CANCELLED FOR ALLEGANY...MORGAN AND
WASHINGTON COUNTIES...

THE THUNDERSTORM THAT PROMPTED THE WARNING HAS EXITED THE WARNED
AREA. THUS THE TORNADO WARNING HAS BEEN CANCELLED.

LAT...LON 3973 7824 3967 7814 3955 7862 3966 7871
      3973 7857
TIME...MOT...LOC 0134Z 248DEG 42KT 3970 7828

$$

SMZ

The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 29, 8:15 PM EDT	Severe Thunderstorm Warning	LWX	Hampshire, Mineral	75 min
Jun 29, 8:23 PM EDT	Severe Thunderstorm Warning	LWX	Grant, Hampshire, Hardy, Mineral, Pendleton	82 min
Jun 29, 8:53 PM EDT	Severe Thunderstorm Warning	LWX	Jefferson	35 min
Jun 29, 9:05 PM EDT	Tornado Warning	LWX	Hampshire, Mineral	25 min
Jun 29, 9:08 PM EDT	Severe Thunderstorm Warning	LWX	Berkeley, Hampshire, Hardy, Mineral, Morgan	67 min
Jun 29, 9:34 PM EDT	Severe Thunderstorm Warning	LWX	Berkeley, Jefferson, Morgan	56 min
Jun 30, 4:19 AM EDT	Heat Advisory	LWX	Berkeley, Jefferson, Morgan	14 hr
Jun 29, 9:46 PM EDT	Severe Thunderstorm Warning	LWX	Montgomery	59 min
Jun 29, 10:10 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Charles, Frederick, Howard, Montgomery, Prince George's	65 min
Jun 29, 10:16 PM EDT	Flash Flood Warning	LWX	Frederick	3 hr
Jun 29, 10:17 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Carroll, Frederick, Harford, Howard and 1 more	58 min
Jun 29, 10:42 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Charles, Howard, Montgomery, Prince George's and 1 more	78 min
Jun 29, 11:07 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Baltimore, Carroll, Harford, Howard, City of Baltimore	53 min
Jun 29, 11:36 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Saint Mary's	39 min
Jun 29, 11:53 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	23 min
Jun 30, 12:17 AM EDT	Special Weather Statement	LWX	Harford	28 min
Jun 30, 4:19 AM EDT	Excessive Heat Warning	LWX	Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more	12 hr

Nearby

Tornado Warnings in Maryland, 2012 Tornado Warnings in West Virginia, 2012 Every tornado warning in 2012 Tornadoes 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; radar from the NEXRAD Level II archive.