SEL1
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 631
   NWS STORM PREDICTION CENTER NORMAN OK
   550 PM EDT MON JUL 11 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          MARYLAND PANHANDLE
          SOUTH-CENTRAL PENNSYLVANIA
          NORTHERN VIRGINIA
          EASTERN WEST VIRGINIA
   
   EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 550 PM UNTIL
   1100 PM EDT.
   
   HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45
   STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES WEST
   NORTHWEST OF ALTOONA PENNSYLVANIA TO 10 MILES EAST SOUTHEAST OF
   STAUNTON VIRGINIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).
   
   REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
   FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
   AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
   THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
   AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
   DO PRODUCE TORNADOES.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 628...WW 629...WW 630...
   
   DISCUSSION...LONG-LIVED MCS WITH WELL-ESTABLISHED COLD POOL WILL
   CONTINUE TO PROGRESS EWD/SEWD THIS EVENING INTO A HOT AND MOIST
   INFLOW AIR MASS.  WHILE SOME HAIL IS POSSIBLE...DAMAGING WINDS WILL
   BE THE PRIMARY HAZARD.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
   A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION
   VECTOR 28030.
   
   
   ...MEAD

   SEL1
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 631
   NWS STORM PREDICTION CENTER NORMAN OK
   550 PM EDT MON JUL 11 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          MARYLAND PANHANDLE
          SOUTH-CENTRAL PENNSYLVANIA
          NORTHERN VIRGINIA
          EASTERN WEST VIRGINIA
   
   EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 550 PM UNTIL
   1100 PM EDT.
   
   WIDELY SCATTERED DAMAGING WINDS
   ISOLATED WIND GUSTS TO 70 MPH POSSIBLE
   WIDELY SCATTERED LARGE HAIL TO 1.0 INCH IN DIAMETER
   ISOLATED TORNADOES
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45
   STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES WEST
   NORTHWEST OF ALTOONA PENNSYLVANIA TO 10 MILES EAST SOUTHEAST OF
   STAUNTON VIRGINIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).
   
   REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
   FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
   AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
   THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
   AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
   DO PRODUCE TORNADOES.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 628...WW 629...WW 630...
   
   DISCUSSION...LONG-LIVED MCS WITH WELL-ESTABLISHED COLD POOL WILL
   CONTINUE TO PROGRESS EWD/SEWD THIS EVENING INTO A HOT AND MOIST
   INFLOW AIR MASS.  WHILE SOME HAIL IS POSSIBLE...DAMAGING WINDS WILL
   BE THE PRIMARY HAZARD.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
   A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION
   VECTOR 28030.
   
   
   ...MEAD

   SEL1
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 631
   NWS STORM PREDICTION CENTER NORMAN OK
   550 PM EDT MON JUL 11 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          MARYLAND PANHANDLE
          SOUTH-CENTRAL PENNSYLVANIA
          NORTHERN VIRGINIA
          EASTERN WEST VIRGINIA
   
   EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 550 PM UNTIL
   1100 PM EDT.
   
   HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45
   STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES WEST
   NORTHWEST OF ALTOONA PENNSYLVANIA TO 10 MILES EAST SOUTHEAST OF
   STAUNTON VIRGINIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).
   
   REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
   FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
   AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
   THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
   AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
   DO PRODUCE TORNADOES.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 628...WW 629...WW 630...
   
   DISCUSSION...LONG-LIVED MCS WITH WELL-ESTABLISHED COLD POOL WILL
   CONTINUE TO PROGRESS EWD/SEWD THIS EVENING INTO A HOT AND MOIST
   INFLOW AIR MASS.  WHILE SOME HAIL IS POSSIBLE...DAMAGING WINDS WILL
   BE THE PRIMARY HAZARD.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
   A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION
   VECTOR 28030.
   
   
   ...MEAD

   WOUS64 KWNS 112144
   WOU1
   
   BULLETIN - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 631
   NWS STORM PREDICTION CENTER NORMAN OK
   550 PM EDT MON JUL 11 2011
   
   SEVERE THUNDERSTORM WATCH 631 IS IN EFFECT UNTIL 1100 PM EDT
   FOR THE FOLLOWING LOCATIONS
   
   MDC001-043-120300-
   /O.NEW.KWNS.SV.A.0631.110711T2150Z-110712T0300Z/
   
   MD 
   .    MARYLAND COUNTIES INCLUDED ARE
   
   ALLEGANY             WASHINGTON          
   
   
   PAC009-013-021-055-057-061-087-111-120300-
   /O.NEW.KWNS.SV.A.0631.110711T2150Z-110712T0300Z/
   
   PA 
   .    PENNSYLVANIA COUNTIES INCLUDED ARE
   
   BEDFORD              BLAIR               CAMBRIA             
   FRANKLIN             FULTON              HUNTINGDON          
   MIFFLIN              SOMERSET            
   
   
   VAC015-043-069-091-139-165-171-187-660-790-820-840-120300-
   /O.NEW.KWNS.SV.A.0631.110711T2150Z-110712T0300Z/
   
   VA 
   .    VIRGINIA COUNTIES INCLUDED ARE
   
   AUGUSTA              CLARKE              FREDERICK           
   HIGHLAND             PAGE                ROCKINGHAM          
   SHENANDOAH           WARREN              
   
   
   VIRGINIA INDEPENDENT CITIES INCLUDED ARE
   
   HARRISONBURG         STAUNTON            WAYNESBORO          
   WINCHESTER           
   
   
   WVC003-023-027-031-037-057-065-071-120300-
   /O.NEW.KWNS.SV.A.0631.110711T2150Z-110712T0300Z/
   
   WV 
   .    WEST VIRGINIA COUNTIES INCLUDED ARE
   
   BERKELEY             GRANT               HAMPSHIRE           
   HARDY                JEFFERSON           MINERAL             
   MORGAN               PENDLETON           
   
   
   ATTN...WFO...LWX...CTP...
   
   
   

   SAW1 
   WW 631 SEVERE TSTM MD PA VA WV 112150Z - 120300Z
   AXIS..45 STATUTE MILES EAST AND WEST OF LINE..
   20WNW AOO/ALTOONA PA/ - 10ESE SHD/STAUNTON VA/
   ..AVIATION COORDS.. 40NM E/W /9ENE JST - 48WSW CSN/
   HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 500. MEAN STORM MOTION VECTOR 28030.
   
   LAT...LON 40407780 38207790 38207955 40407951
   
   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU1.
   

Watch 631 Status Report Messages:

STATUS REPORT #3 ON WW 631

VALID 120135Z - 120240Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 ENE CHO
TO 45 NE CHO.

..GARNER..07/12/11

ATTN...WFO...LWX...CTP...

&&

STATUS REPORT FOR WS 631 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

DCC001-120240-

DC 
.    DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE

DISTRICT OF COLUMBIA 
$$


MDC003-005-009-017-025-033-037-510-120240-

MD 
.    MARYLAND COUNTIES INCLUDED ARE

ANNE ARUNDEL	     BALTIMORE		 CALVERT	     
CHARLES 	     HARFORD		 PRINCE GEORGES      
ST. MARYS	     


MARYLAND INDEPENDENT CITIES INCLUDED ARE

BALTIMORE CITY	     
$$


VAC013-059-099-153-177-179-510-600-610-630-683-685-120240-

VA 
.    VIRGINIA COUNTIES INCLUDED ARE

ARLINGTON	     FAIRFAX		 KING GEORGE	     
PRINCE WILLIAM	     SPOTSYLVANIA	 STAFFORD	     




VIRGINIA INDEPENDENT CITIES INCLUDED ARE

ALEXANDRIA	     FAIRFAX		 FALLS CHURCH	     
FREDERICKSBURG	     MANASSAS		 MANASSAS PARK	     
$$


ANZ530-531-532-533-534-535-536-537-538-539-540-541-542-543-
120240-

CW 

.    ADJACENT COASTAL WATERS INCLUDED ARE

ANZ530 

ANZ531 

ANZ532 

ANZ533 

ANZ534 

ANZ535 

ANZ536 

ANZ537 

ANZ538 

ANZ539 

ANZ540 

ANZ541 

ANZ542 

ANZ543 

$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY.  PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$

STATUS REPORT #2 ON WW 631

VALID 120030Z - 120140Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 ESE SHD TO
15 SSE MRB.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1584

..GARNER..07/12/11

ATTN...WFO...LWX...CTP...

&&

STATUS REPORT FOR WS 631 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

DCC001-120140-

DC 
.    DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE

DISTRICT OF COLUMBIA 
$$


MDC003-005-009-013-017-021-025-027-031-033-037-510-120140-

MD 
.    MARYLAND COUNTIES INCLUDED ARE

ANNE ARUNDEL	     BALTIMORE		 CALVERT	     
CARROLL 	     CHARLES		 FREDERICK	     
HARFORD 	     HOWARD		 MONTGOMERY	     
PRINCE GEORGES	     ST. MARYS		 


MARYLAND INDEPENDENT CITIES INCLUDED ARE

BALTIMORE CITY	     
$$


VAC003-013-047-059-061-079-099-107-113-125-137-153-157-177-179-
510-540-600-610-630-683-685-120140-

VA 
.    VIRGINIA COUNTIES INCLUDED ARE

ALBEMARLE	     ARLINGTON		 CULPEPER	     
FAIRFAX 	     FAUQUIER		 GREENE 	     
KING GEORGE	     LOUDOUN		 MADISON	     
NELSON		     ORANGE		 PRINCE WILLIAM      
RAPPAHANNOCK	     SPOTSYLVANIA	 STAFFORD	     




VIRGINIA INDEPENDENT CITIES INCLUDED ARE

ALEXANDRIA	     CHARLOTTESVILLE	 FAIRFAX	     
FALLS CHURCH	     FREDERICKSBURG	 MANASSAS	     
MANASSAS PARK	     
$$


ANZ530-531-532-533-534-535-536-537-538-539-540-541-542-543-
120140-

CW 

.    ADJACENT COASTAL WATERS INCLUDED ARE

ANZ530 

ANZ531 

ANZ532 

ANZ533 

ANZ534 

ANZ535 

ANZ536 

ANZ537 

ANZ538 

ANZ539 

ANZ540 

ANZ541 

ANZ542 

ANZ543 

$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY.  PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$

STATUS REPORT #1 ON WW 631

VALID 112340Z - 120040Z

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 ENE EKN
TO 15 WNW AOO.

..GARNER..07/11/11

ATTN...WFO...LWX...CTP...

&&

STATUS REPORT FOR WS 631 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

DCC001-120040-

DC 
.    DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE

DISTRICT OF COLUMBIA 
$$


MDC001-003-005-009-013-017-021-025-027-031-033-037-043-510-
120040-

MD 
.    MARYLAND COUNTIES INCLUDED ARE

ALLEGANY	     ANNE ARUNDEL	 BALTIMORE	     
CALVERT 	     CARROLL		 CHARLES	     
FREDERICK	     HARFORD		 HOWARD 	     
MONTGOMERY	     PRINCE GEORGES	 ST. MARYS	     
WASHINGTON	     


MARYLAND INDEPENDENT CITIES INCLUDED ARE

BALTIMORE CITY	     
$$


PAC009-013-055-057-061-087-120040-

PA 
.    PENNSYLVANIA COUNTIES INCLUDED ARE

BEDFORD 	     BLAIR		 FRANKLIN	     
FULTON		     HUNTINGDON 	 MIFFLIN	     
$$


VAC003-013-015-043-047-059-061-069-079-091-099-107-113-125-137-
139-153-157-165-171-177-179-187-510-540-600-610-630-660-683-685-
790-820-840-120040-

VA 
.    VIRGINIA COUNTIES INCLUDED ARE

ALBEMARLE	     ARLINGTON		 AUGUSTA	     
CLARKE		     CULPEPER		 FAIRFAX	     
FAUQUIER	     FREDERICK		 GREENE 	     
HIGHLAND	     KING GEORGE	 LOUDOUN	     
MADISON 	     NELSON		 ORANGE 	     
PAGE		     PRINCE WILLIAM	 RAPPAHANNOCK	     
ROCKINGHAM	     SHENANDOAH 	 SPOTSYLVANIA	     
STAFFORD	     WARREN		 


VIRGINIA INDEPENDENT CITIES INCLUDED ARE

ALEXANDRIA	     CHARLOTTESVILLE	 FAIRFAX	     
FALLS CHURCH	     FREDERICKSBURG	 HARRISONBURG	     
MANASSAS	     MANASSAS PARK	 STAUNTON	     
WAYNESBORO	     WINCHESTER 	 
$$


WVC003-023-027-031-037-057-065-071-120040-

WV 
.    WEST VIRGINIA COUNTIES INCLUDED ARE

BERKELEY	     GRANT		 HAMPSHIRE	     
HARDY		     JEFFERSON		 MINERAL	     
MORGAN		     PENDLETON		 
$$


ANZ530-531-532-533-534-535-536-537-542-120040-

CW 

.    ADJACENT COASTAL WATERS INCLUDED ARE

ANZ530 

ANZ531 

ANZ532 

ANZ533 

ANZ534 

ANZ535 

ANZ536 

ANZ537 

ANZ542 

$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY.  PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$

Please visit the National Weather Service Interactive Weather Information Network (IWIN) for more information on the warnings.

For each watch, probabilities for particular events inside the watch (listed above in each table) are determined by the issuing forecaster. The "Low" category contains probability values ranging from less than 2% to 20% (F2-F5 tornadoes), less than 5% to 20% (all other probabilities), "Moderate" from 30% to 60%, and "High" from 70% to greater than 95%. High values are bolded and lighter in color to provide awareness of an increased threat for a particular event.