Alert archive / Maryland / Tornado Warnings in 2011

Tornado Warning 75, NWS Baltimore/Washington

June 12, 2011Harford County, Maryland

NWS Baltimore/Washington issued this tornado warning at Jun 12, 2011, 4:41 PM EDT for Harford County, Maryland. It was in force for 35 min. 3 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 12, 2011, 4:41 PM EDT (20:41 UTC)
Expired: Jun 12, 2011, 5:16 PM EDT
In force: 35 min
Issued by: NWS Baltimore/Washington
Area: Storm-based polygon

County Harford County, MD

The radar

The Dover AFB radar (KDOX), 93 km from the middle of the area, began a volume at 20:42 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 12, 4:50 PM EDT	TSTM WND DMG	Belcamp, MD	OVER A DOZEN LARGE TREES UPROOTED AND DAMAGED. POWERLINES DOWN NEARBY.
Jun 12, 4:50 PM EDT	HAIL 0.75	Belcamp, MD	PEA TO DIME SIZE HAIL
Jun 12, 4:50 PM EDT	TORNADO	Belcamp, MD	RATED EF-0. MAX WINDS 80 MPH. CONCENTRATED TREE DAMAGE SURROUNDING A HISTORIC PROPERTY NEAR RIVERSIDE PKWY AND U.S. 40-PULASKI HGWY. NEARLY 3 DOZEN TREES SNAPPED OR UPROOTED. PATH LENGTH 0.2 MILES. MAX PATH WIDTH 50 YDS. NO DAMAGE TO STRUCTURES. LASTED LESS TH

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this tornado warning; the first came 9 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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 12, 1:48 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 8.7 hours before the alert went out and 117 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: 360 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 861 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: -27 m²/s²
0-3 km storm-relative helicity: 2 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

017 
WFUS51 KLWX 122041
TORLWX
MDC025-122130-
/O.NEW.KLWX.TO.W.0075.110612T2041Z-110612T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
441 PM EDT SUN JUN 12 2011

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* TORNADO WARNING FOR...
  HARFORD COUNTY IN NORTHERN MARYLAND...

* UNTIL 530 PM EDT

* AT 437 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO JUST EAST OF 
BEL AIR...MOVING SOUTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PERRYMAN...
  ABERDEEN...

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.

MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT...EITHER PARK AND STAY IN YOUR VEHICLE...OR ABANDON YOUR
VEHICLE AND LAY FLAT IN A LOW SPOT.

&&

LAT...LON 3944 7609 3942 7611 3940 7616 3938 7617
      3934 7622 3937 7626 3940 7625 3939 7627
      3955 7638 3959 7623 3945 7605
TIME...MOT...LOC 2040Z 328DEG 23KT 3953 7627

$$

JRK

3 follow-up statements

453 
WWUS51 KLWX 122053
SVSLWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
453 PM EDT SUN JUN 12 2011

MDC025-122130-
/O.CON.KLWX.TO.W.0075.000000T0000Z-110612T2130Z/
HARFORD MD-
453 PM EDT SUN JUN 12 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM EDT FOR HARFORD
COUNTY...

AT 446 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS 
TORNADO WAS LOCATED NEAR PERRYMAN...OR 6 MILES SOUTHWEST OF 
ABERDEEN...MOVING SOUTHEAST AT 25 MPH. A FUNNEL CLOUD WAS REPORTED 
BY LOCAL EMERGENCY MANAGEMENT IN ABINGDON NEAR INTERSTATE 95 AND 
ROUTE 924 AROUND 445 PM. 

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.

MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT...EITHER PARK AND STAY IN YOUR VEHICLE...OR ABANDON YOUR
VEHICLE AND LAY FLAT IN A LOW SPOT.

&&

LAT...LON 3954 7623 3945 7607 3944 7609 3942 7611
      3940 7616 3938 7617 3934 7622 3937 7626
      3940 7625 3939 7627 3949 7634
TIME...MOT...LOC 2052Z 324DEG 24KT 3945 7624

$$

JRK

002 
WWUS51 KLWX 122108
SVSLWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
508 PM EDT SUN JUN 12 2011

MDC025-122130-
/O.CON.KLWX.TO.W.0075.000000T0000Z-110612T2130Z/
HARFORD MD-
508 PM EDT SUN JUN 12 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM EDT FOR HARFORD
COUNTY...

AT 505 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS LOCATED NEAR PERRYMAN...OR 6 MILES SOUTH OF ABERDEEN... 
MOVING SOUTHEAST AT 20 MPH. A FUNNEL CLOUD WAS REPORTED BY LOCAL 
EMERGENCY MANAGEMENT IN ABINGDON NEAR INTERSTATE 95 AND ROUTE 924 
AROUND 445 PM. 

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 3943 7628 3948 7618 3944 7609 3942 7611
      3940 7616 3938 7617 3934 7622 3937 7626
      3938 7626 3940 7625 3939 7626
TIME...MOT...LOC 2108Z 315DEG 17KT 3942 7616

$$

JRK

435 
WWUS51 KLWX 122116
SVSLWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
516 PM EDT SUN JUN 12 2011

MDC025-122126-
/O.CAN.KLWX.TO.W.0075.000000T0000Z-110612T2130Z/
HARFORD MD-
516 PM EDT SUN JUN 12 2011

...THE TORNADO WARNING IS CANCELLED FOR HARFORD COUNTY...

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

LAT...LON 3943 7628 3948 7618 3944 7609 3942 7611
      3940 7616 3938 7617 3934 7622 3937 7626
      3938 7626 3940 7625 3939 7626
TIME...MOT...LOC 2116Z 315DEG 17KT 3939 7613

$$

JRK

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Baltimore/Washington wrote its last area forecast discussion before this tornado warning went out at Jun 12, 3:12 PM EDT, 1 hour 29 minutes earlier.

Area forecast discussion, Jun 12, 3:12 PM EDT, 1 hour 29 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
312 PM EDT SUN JUN 12 2011

.SYNOPSIS...
A COLD FRONT WILL PASS THROUGH THE REGION LATE THIS AFTERNOON AND
EVENING TRIGGERING SHOWERS AND THUNDERSTORMS. CANADIAN HIGH
PRESSURE BUILDING INTO THE REGION TONIGHT THROUGH MIDWEEK WILL
BRING COOLER AND DRIER CONDITIONS. LOW PRESSURE MAY IMPACT THE
MID-ATLANTIC REGION LATE IN THE WEEK.
&&

.NEAR TERM /TONIGHT THROUGH MONDAY/...
SEVERE TSTM WATCH CONTINUES THROUGH 800 PM. CONVECTION ASSOC WITH
THE COLD FRONT MOVING THROUGH WESTERN HALF OF CWA ATTM. REGIONAL
RADAR SHOWING TSTMS STILL BACK IN E VA SO THE SOUTHERN HALF OF CWA
WILL BE UNDER THE SVR THREAT THROUGH SUNSET. NORTHERN HALF SHOULD
BE CLEARED BY 6 PM AS STORMS ARE CURRENTLY GOING THROUGH CENTRAL
MD ATTM.

THE COLD FRONT WILL PASS THROUGH THE EASTERN PORTION OF THE CWA THIS
EVENING. CANADIAN HIGH PRESSURE WILL BUILD OVER THE REGION LATE
TONIGHT BEHIND THE COLD FRONT. NOTICEABLY COOLER AND LESS HUMID
CONDITIONS ARE EXPECTED. MIN TEMPS WILL RANGE FROM THE 40S IN THE
POTOMAC HIGHLANDS TO THE MID 60S IN DOWNTOWN WASHINGTON AND
BALTIMORE. HIGHS ON MONDAY WILL BE BLO NORMAL WITH MAX TEMPS IN
THE MID TO UPPER 70S...AND COOLER IN HIGHER ELEVATIONS OUT WEST.

&&

.SHORT TERM /MONDAY NIGHT THROUGH WED/...
THE CLOSED LOW OVER NEW ENGLAND WILL BE SLOW TO MOVE OFF THE COAST
DURING THE MIDDLE PART OF THE WEEK. NW FLOW AROUND THE BACKSIDE OF
THE LOW WILL SUPPLY THE MID- ATLANTIC REGION WITH SEASONABLY COOL
AND LESS HUMID CONDITIONS. MOST OF THE AREA WILL BE DRY THRU
WED...ALTHOUGH A FEW SHOWERS COULD DEVELOP ACROSS NORTH-CENTRAL MD
ON TUE AS A SHORTWAVE TROUGH ROTATES AROUND THE MAIN LOW. HIGH
TEMPS EACH DAY WILL BE NEAR OR EVEN A FEW DEGREES BELOW NORMAL
/UPPER 70S TO LOW 80S/. LOW TEMPS MAY DROP INTO THE 40S EACH NIGHT
ACROSS THE HIGHLANDS AND 50S TO NEAR 60F ELSEWHERE.
&&

.LONG TERM /WED NIGHT THROUGH SUNDAY/...
LOPRES IS FORECASTED TO TRACK FROM THE UPPER MIDWEST TO THE GREAT
LAKES LATE WED INTO THU AND ACROSS THE NRN MID-ATLANTIC STATES ON
FRI. STILL SIGNIFICANT DIFFERENCES REMAIN BETWEEN EXTENDED-RANGE
MODELS...SO CONFIDENCE IN ANY ONE SOLUTION IS LOW. CHANCES FOR
SHOWERS AND STORMS INCREASE THU AS SLY FLOW AHEAD OF THE LOW BRINGS
A WARM FRONT TOWARD THE REGION. THE BEST CHANCE FOR STORMS WILL BE
FRI AS THE LOW IS CLOSEST TO THE REGION. THE FRONT MAY STALL NEAR OR
JUST SOUTH OF THE REGION THIS WEEKEND. THE EXACT LOCATION OF THE
FRONT WILL DETERMINE IF THE REGION DRIES OUT OR IF UNSETTLED WEATHER
CONTINUES INTO THE WEEKEND. FCST FAVORS A MORE OPTIMISTIC OR DRY
FCST FOR THE WEEKEND.
&&

.AVIATION /19Z SUNDAY THROUGH FRIDAY/...
TSTMS THIS AFT AND EVENING WILL BRIEFLY REDUCE VSBYS AND CIGS.
FROPA LOOKS TO BE BETWEEN 22Z-00Z THIS EVENING FOR DCA IAD AND
BWI. SOME VALLEY FOG POSSIBLE LATE TONIGHT AT MRB AND CHO.
OTHERWISE VFR CONDITIONS THRU WED NGT. LOPRES WILL SLOWLY
APPROACH THU AND FRI...BRINGING CHANCES FOR SHRA AND TSRA.
&&

.MARINE...
SCA TONIGHT ON MAIN CHANNEL OF CHESAPEAKE WITH NORTHERLY SURGE
BEHIND FROPA. THE SURGE WILL BE DONE LATE TOMORROW MORNING.
OTHERWISE...WINDS SHOULD REMAIN BELOW SCA LVLS THRU THE WEEK. LOW
PRESSURE WILL SLOWLY APPROACH THE WATERS THU AND FRI...BRINGING
THE THREAT OF SHOWERS AND STORMS BACK TO THE AREA. &&

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...NONE.
MD...NONE.
VA...NONE.
WV...NONE.
MARINE...SMALL CRAFT ADVISORY FROM MIDNIGHT TONIGHT TO NOON EDT MONDAY
     FOR ANZ531>534-537>543.

&&

Hazardous weather outlook, Jun 12, 2:33 PM EDT, 2 hours 8 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
233 PM EDT SUN JUN 12 2011

ANZ530>543-DCZ001-MDZ006-007-011-013-014-016>018-VAZ052>057-
131445-
CHESAPEAKE BAY NORTH OF POOLES ISLAND MD-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT MD-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH MD-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD-
CHESAPEAKE BAY FROM DRUM POINT MD TO SMITH POINT VA-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD MD-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND MD-
TIDAL POTOMAC FROM COBB ISLAND MD TO SMITH POINT VA-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
CHESTER RIVER TO QUEENSTOWN MD-EASTERN BAY-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
PATUXENT RIVER TO BROOMES ISLAND MD-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH
ISLAND-DISTRICT OF COLUMBIA-NORTHERN BALTIMORE-HARFORD-
SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-
CALVERT-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA-
KING GEORGE-
233 PM EDT SUN JUN 12 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MARYLAND PORTION OF THE
CHESAPEAKE BAY...TIDAL POTOMAC RIVER...AND ADJACENT COUNTIES IN
CENTRAL MARYLAND AND NORTHERN VIRGINIA AS WELL AS THE DISTRICT OF
COLUMBIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8:00 PM. SOME
THUNDERSTORMS HAVE THE POTENTIAL TO PRODUCE LARGE HAIL AND
DAMAGING WIND GUSTS.

A SMALL CRAFT ADVISORY IS IN EFFECT LATE TONIGHT FOR THE MARYLAND
PORTION OF THE CHESAPEAKE BAY SOUTH OF POOLES ISLAND AND THE LOWER
TIDAL POTOMAC RIVER FROM COBB ISLAND TO SMITH POINT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A SMALL CRAFT ADVISORY IS IN EFFECT UNTIL NOON MONDAY FOR THE
MARYLAND PORTION OF THE CHESAPEAKE BAY SOUTH OF POOLES ISLAND AND
THE LOWER TIDAL POTOMAC RIVER FROM COBB ISLAND TO SMITH POINT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.

MDZ003>005-009-010-501-502-VAZ025>031-036>040-042-050-051-501>504-
WVZ050>053-055-501>506-131445-
WASHINGTON-FREDERICK MD-CARROLL-MONTGOMERY-HOWARD-
EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-AUGUSTA-
ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-NELSON-
ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-LOUDOUN-ORANGE-CULPEPER-
NORTHERN FAUQUIER-SOUTHERN FAUQUIER-WESTERN HIGHLAND-
EASTERN HIGHLAND-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-HARDY-
WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL-
WESTERN PENDLETON-EASTERN PENDLETON-
233 PM EDT SUN JUN 12 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN WEST VIRGINIA...
NORTHERN AND CENTRAL VIRGINIA...AND CENTRAL AND WESTERN MARYLAND
WITH THE EXCEPTION OF GARRETT COUNTY.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8:00 PM. SOME
THUNDERSTORMS HAVE THE POTENTIAL TO PRODUCE LARGE HAIL AND
DAMAGING WIND GUSTS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.

In the hours before

Special weather statement, Jun 12, 4:16 PM EDT, 25 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
416 PM EDT SUN JUN 12 2011

MDZ005>007-011-122045-
CARROLL MD-NORTHERN BALTIMORE MD-HARFORD MD-SOUTHERN BALTIMORE MD-
416 PM EDT SUN JUN 12 2011

...STRONG THUNDERSTORM TO AFFECT CARROLL...NORTHERN BALTIMORE...
HARFORD AND SOUTHERN BALTIMORE COUNTIES...

AT 416 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 4 MILES
NORTHEAST OF MONKTON...MOVING SOUTHEAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE JARRETTSVILLE...FALLSTON...PLEASANT
HILLS...BEL AIR...PERRY HALL...KINGSVILLE AND WHITE MARSH.

HEAVY RAIN WITH THIS STORM MAY REDUCE VISIBILITIES TO BELOW ONE MILE
AND MAY CAUSE PONDING OF WATER ON ROADWAYS.

WIND GUSTS OF 40 TO 50 MPH AND SMALL HAIL CAN BE EXPECTED WITH THIS
STORM.

&&

LAT...LON 3944 7624 3942 7625 3941 7622 3940 7624
      3941 7625 3935 7632 3938 7631 3938 7633
      3935 7633 3931 7640 3937 7647 3938 7672
      3959 7684 3972 7681 3973 7648
TIME...MOT...LOC 2016Z 309DEG 22KT 3960 7654

Local storm report, Jun 12, 4:23 PM EDT, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
423 PM EDT SUN JUN 12 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0418 PM     HAIL             4 ESE EDGEWOOD          39.40N  76.22W
06/12/2011  M1.00 INCH       HARFORD            MD   TRAINED SPOTTER

&&

EVENT NUMBER LWX1100949

TCH

Local storm report, Jun 12, 4:32 PM EDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
432 PM EDT SUN JUN 12 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0427 PM     HAIL             DARLINGTON              39.64N  76.20W
06/12/2011  M0.88 INCH       HARFORD            MD   TRAINED SPOTTER

&&

EVENT NUMBER LWX1100950

JACKSON

Special weather statement, Jun 12, 4:34 PM EDT, 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
434 PM EDT SUN JUN 12 2011

VAZ027-028-030-031-040-042-501-122100-
RAPPAHANNOCK VA-NORTHERN FAUQUIER VA-WARREN VA-SHENANDOAH VA-
CLARKE VA-LOUDOUN VA-FREDERICK VA-
434 PM EDT SUN JUN 12 2011

...STRONG THUNDERSTORM TO AFFECT RAPPAHANNOCK...NORTHERN FAUQUIER...
WARREN...SHENANDOAH...CLARKE...LOUDOUN AND FREDERICK COUNTIES...

AT 434 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 3 MILES
NORTHWEST OF HOWELLSVILLE...MOVING SOUTHEAST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE DELAPLANE AND HUME.

WIND GUSTS OF 40 TO 50 MPH AND SMALL HAIL CAN BE EXPECTED WITH THIS
STORM.

&&

LAT...LON 3899 7794 3888 7782 3870 7801 3899 7834
      3916 7806
TIME...MOT...LOC 2034Z 303DEG 15KT 3899 7809

Local storm report, Jun 12, 4:36 PM EDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
436 PM EDT SUN JUN 12 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0418 PM     HAIL             1 SSW PYLESVILLE        39.68N  76.38W
06/12/2011  M1.00 INCH       HARFORD            MD   TRAINED SPOTTER

&&

CORRECTED LOCATION

EVENT NUMBER LWX1100949

TCH

Special weather statement, Jun 12, 4:36 PM EDT, 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
436 PM EDT SUN JUN 12 2011

VAZ029-038-039-051-122100-
GREENE VA-MADISON VA-CULPEPER VA-PAGE VA-
436 PM EDT SUN JUN 12 2011

...STRONG THUNDERSTORM TO AFFECT GREENE...MADISON...CULPEPER AND PAGE
COUNTIES...

AT 437 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
BIG MEADOWS...MOVING SOUTHEAST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE MADISON.

WIND GUSTS OF 40 TO 50 MPH AND SMALL HAIL CAN BE EXPECTED WITH THIS
STORM.

&&

LAT...LON 3843 7804 3823 7823 3849 7858 3864 7845
TIME...MOT...LOC 2037Z 307DEG 15KT 3852 7845

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 8:00 PM EDT	Special Weather Statement	LWX	Carroll	30 min
Jun 11, 8:18 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll	42 min
Jun 11, 8:54 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	51 min
Jun 11, 9:05 PM EDT	Special Weather Statement	LWX	Carroll	25 min
Jun 11, 9:45 PM EDT	Special Weather Statement	LWX	Harford	30 min
Jun 11, 10:13 PM EDT	Special Weather Statement	LWX	Harford	47 min
Jun 11, 10:55 PM EDT	Special Weather Statement	LWX	Harford	35 min
Jun 12, 1:09 PM EDT	Special Weather Statement	LWX	Anne Arundel	36 min
Jun 12, 1:46 PM EDT	Special Weather Statement	LWX	Allegany, Washington	29 min
Jun 12, 2:10 PM EDT	Severe Thunderstorm Warning	LWX	Allegany, Frederick, Washington	50 min
Jun 12, 2:56 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	34 min
Jun 12, 3:07 PM EDT	Special Weather Statement	LWX	Calvert	23 min
Jun 12, 3:12 PM EDT	Severe Thunderstorm Warning	LWX	Calvert, Saint Mary's	48 min
Jun 12, 3:16 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery, Washington	44 min
Jun 12, 3:45 PM EDT	Severe Thunderstorm Warning	LWX	Harford	45 min
Jun 12, 3:52 PM EDT	Tornado Warning	LWX	Harford	23 min
Jun 12, 4:13 PM EDT	Tornado Warning	LWX	Harford	47 min
Jun 12, 4:16 PM EDT	Special Weather Statement	LWX	Baltimore	29 min
Jun 12, 4:26 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	49 min
Jun 12, 4:51 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford, City of Baltimore	39 min
Jun 12, 4:56 PM EDT	Special Weather Statement	LWX	Prince George's	34 min
Jun 12, 5:00 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	45 min
Jun 12, 5:24 PM EDT	Special Weather Statement	LWX	Anne Arundel	36 min
Jun 12, 5:28 PM EDT	Special Weather Statement	LWX	City of Baltimore	32 min
Jun 12, 5:32 PM EDT	Special Weather Statement	LWX	Anne Arundel	28 min
Jun 12, 5:40 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	37 min
Jun 12, 6:30 PM EDT	Severe Thunderstorm Warning	LWX	Charles	45 min
Jun 12, 6:55 PM EDT	Special Weather Statement	LWX	Anne Arundel	35 min

Nearby

Tornado Warnings in Maryland, 2011 Every tornado warning in 2011 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.