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The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 482
NWS Storm Prediction Center Norman OK
1140 AM EDT Wed Sep 1 2021
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
District Of Columbia
Central to eastern Maryland
Far northeast North Carolina
Northern to eastern Virginia
Coastal Waters
* Effective this Wednesday morning and evening from 1140 AM until
700 PM EDT.
* Primary threats include...
A few tornadoes likely
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Several lower-topped supercells should develop within
clusters that spread east-northeast this afternoon.
The tornado watch area is approximately along and 60 statute miles
east and west of a line from 45 miles north northwest of Baltimore
MD to 30 miles southwest of Norfolk VA. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU2).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and 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.
&&
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 0.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 24025.
...Grams
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW2
WW 482 TORNADO DC MD NC VA CW 011540Z - 012300Z
AXIS..60 STATUTE MILES EAST AND WEST OF LINE..
45NNW BWI/BALTIMORE MD/ - 30SW ORF/NORFOLK VA/
..AVIATION COORDS.. 50NM E/W /17N EMI - 26SW ORF/
HAIL SURFACE AND ALOFT..0.5 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 24025.
LAT...LON 39787586 36597550 36597766 39787812
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU2.
Watch 482 Status Report Messages:
STATUS REPORT #3 ON WW 482
VALID 012015Z - 012140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 ENE RZZ
TO 25 S RIC TO 20 NNE RIC TO 40 W NHK TO 10 WSW DCA TO 20 SE HGR
TO 30 ENE HGR.
..JEWELL..09/01/21
ATTN...WFO...LWX...AKQ...
&&
STATUS REPORT FOR WT 482
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
DCC001-012140-
DC
. DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE
DISTRICT OF COLUMBIA
$$
MDC003-005-009-013-015-017-019-021-025-027-031-033-037-039-045-
047-510-012140-
MD
. MARYLAND COUNTIES INCLUDED ARE
ANNE ARUNDEL BALTIMORE CALVERT
CARROLL CECIL CHARLES
DORCHESTER FREDERICK HARFORD
HOWARD MONTGOMERY PRINCE GEORGES
ST. MARYS SOMERSET WICOMICO
WORCESTER
MARYLAND INDEPENDENT CITIES INCLUDED ARE
BALTIMORE CITY
$$
NCC073-091-131-012140-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
GATES HERTFORD NORTHAMPTON
$$
VAC001-013-036-057-073-093-095-097-099-101-103-115-119-127-131-
133-149-159-175-181-183-193-199-510-550-620-650-670-700-710-735-
740-800-810-830-012140-
VA
. VIRGINIA COUNTIES INCLUDED ARE
ACCOMACK ARLINGTON CHARLES CITY
ESSEX GLOUCESTER ISLE OF WIGHT
JAMES CITY KING AND QUEEN KING GEORGE
KING WILLIAM LANCASTER MATHEWS
MIDDLESEX NEW KENT NORTHAMPTON
NORTHUMBERLAND PRINCE GEORGE RICHMOND
SOUTHAMPTON SURRY SUSSEX
WESTMORELAND YORK
VIRGINIA INDEPENDENT CITIES INCLUDED ARE
ALEXANDRIA CHESAPEAKE FRANKLIN
HAMPTON HOPEWELL NEWPORT NEWS
NORFOLK POQUOSON PORTSMOUTH
SUFFOLK VIRGINIA BEACH WILLIAMSBURG
$$
ANZ530-531-532-533-534-537-538-539-540-541-542-543-630-631-632-
634-635-636-637-638-650-652-654-656-012140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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 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
CHESAPEAKE BAY FROM SMITH POINT TO WINDMILL POINT VA
CHESAPEAKE BAY FROM WINDMILL POINT TO NEW POINT COMFORT VA
CHESAPEAKE BAY FROM NEW POINT COMFORT TO LITTLE CREEK VA
CHESAPEAKE BAY FROM LITTLE CREEK VA TO CAPE HENRY VA INCLUDING
THE CHESAPEAKE BAY BRIDGE TUNNEL
RAPPAHANNOCK RIVER FROM URBANNA TO WINDMILL POINT
YORK RIVER
JAMES RIVER FROM JAMESTOWN TO THE JAMES RIVER BRIDGE
JAMES RIVER FROM JAMES RIVER BRIDGE TO HAMPTON ROADS
BRIDGE-TUNNEL
COASTAL WATERS FROM FENWICK ISLAND DE TO CHINCOTEAGUE VA OUT 20
NM
COASTAL WATERS FROM CHINCOTEAGUE TO PARRAMORE ISLAND VA OUT 20 NM
COASTAL WATERS FROM PARRAMORE ISLAND TO CAPE CHARLES LIGHT VA OUT
20 NM
COASTAL WATERS FROM CAPE CHARLES LIGHT TO VIRGINIA-NORTH CAROLINA
BORDER OUT TO 20 NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 482
VALID 011930Z - 012040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1671
..JEWELL..09/01/21
ATTN...WFO...LWX...AKQ...
&&
STATUS REPORT FOR WT 482
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
DCC001-012040-
DC
. DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE
DISTRICT OF COLUMBIA
$$
MDC003-005-009-013-015-017-019-021-025-027-031-033-037-039-045-
047-510-012040-
MD
. MARYLAND COUNTIES INCLUDED ARE
ANNE ARUNDEL BALTIMORE CALVERT
CARROLL CECIL CHARLES
DORCHESTER FREDERICK HARFORD
HOWARD MONTGOMERY PRINCE GEORGES
ST. MARYS SOMERSET WICOMICO
WORCESTER
MARYLAND INDEPENDENT CITIES INCLUDED ARE
BALTIMORE CITY
$$
NCC073-091-131-012040-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
GATES HERTFORD NORTHAMPTON
$$
VAC001-007-013-033-036-041-047-053-057-059-061-073-075-081-085-
087-093-095-097-099-101-103-107-109-115-119-127-131-133-137-145-
149-153-157-159-175-177-179-181-183-193-199-510-550-570-595-600-
610-620-630-650-670-683-685-700-710-730-735-740-760-800-810-830-
012040-
VA
. VIRGINIA COUNTIES INCLUDED ARE
ACCOMACK AMELIA ARLINGTON
CAROLINE CHARLES CITY CHESTERFIELD
CULPEPER DINWIDDIE ESSEX
FAIRFAX FAUQUIER GLOUCESTER
GOOCHLAND GREENSVILLE HANOVER
HENRICO ISLE OF WIGHT JAMES CITY
KING AND QUEEN KING GEORGE KING WILLIAM
LANCASTER LOUDOUN LOUISA
MATHEWS MIDDLESEX NEW KENT
NORTHAMPTON NORTHUMBERLAND ORANGE
POWHATAN PRINCE GEORGE PRINCE WILLIAM
RAPPAHANNOCK RICHMOND SOUTHAMPTON
SPOTSYLVANIA STAFFORD SURRY
SUSSEX WESTMORELAND YORK
VIRGINIA INDEPENDENT CITIES INCLUDED ARE
ALEXANDRIA CHESAPEAKE COLONIAL HEIGHTS
EMPORIA FAIRFAX FALLS CHURCH
FRANKLIN FREDERICKSBURG HAMPTON
HOPEWELL MANASSAS MANASSAS PARK
NEWPORT NEWS NORFOLK PETERSBURG
POQUOSON PORTSMOUTH RICHMOND
SUFFOLK VIRGINIA BEACH WILLIAMSBURG
$$
ANZ530-531-532-533-534-535-536-537-538-539-540-541-542-543-630-
631-632-634-635-636-637-638-650-652-654-656-012040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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
CHESAPEAKE BAY FROM SMITH POINT TO WINDMILL POINT VA
CHESAPEAKE BAY FROM WINDMILL POINT TO NEW POINT COMFORT VA
CHESAPEAKE BAY FROM NEW POINT COMFORT TO LITTLE CREEK VA
CHESAPEAKE BAY FROM LITTLE CREEK VA TO CAPE HENRY VA INCLUDING
THE CHESAPEAKE BAY BRIDGE TUNNEL
RAPPAHANNOCK RIVER FROM URBANNA TO WINDMILL POINT
YORK RIVER
JAMES RIVER FROM JAMESTOWN TO THE JAMES RIVER BRIDGE
JAMES RIVER FROM JAMES RIVER BRIDGE TO HAMPTON ROADS
BRIDGE-TUNNEL
COASTAL WATERS FROM FENWICK ISLAND DE TO CHINCOTEAGUE VA OUT 20
NM
COASTAL WATERS FROM CHINCOTEAGUE TO PARRAMORE ISLAND VA OUT 20 NM
COASTAL WATERS FROM PARRAMORE ISLAND TO CAPE CHARLES LIGHT VA OUT
20 NM
COASTAL WATERS FROM CAPE CHARLES LIGHT TO VIRGINIA-NORTH CAROLINA
BORDER OUT TO 20 NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 482
VALID 011825Z - 011940Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1669
..JEWELL..09/01/21
ATTN...WFO...LWX...AKQ...
&&
STATUS REPORT FOR WT 482
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
DCC001-011940-
DC
. DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE
DISTRICT OF COLUMBIA
$$
MDC003-005-009-013-015-017-019-021-025-027-031-033-037-039-045-
047-510-011940-
MD
. MARYLAND COUNTIES INCLUDED ARE
ANNE ARUNDEL BALTIMORE CALVERT
CARROLL CECIL CHARLES
DORCHESTER FREDERICK HARFORD
HOWARD MONTGOMERY PRINCE GEORGES
ST. MARYS SOMERSET WICOMICO
WORCESTER
MARYLAND INDEPENDENT CITIES INCLUDED ARE
BALTIMORE CITY
$$
NCC073-091-131-011940-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
GATES HERTFORD NORTHAMPTON
$$
VAC001-007-013-033-036-041-047-053-057-059-061-073-075-081-085-
087-093-095-097-099-101-103-107-109-115-119-127-131-133-137-145-
149-153-157-159-175-177-179-181-183-193-199-510-550-570-595-600-
610-620-630-650-670-683-685-700-710-730-735-740-760-800-810-830-
011940-
VA
. VIRGINIA COUNTIES INCLUDED ARE
ACCOMACK AMELIA ARLINGTON
CAROLINE CHARLES CITY CHESTERFIELD
CULPEPER DINWIDDIE ESSEX
FAIRFAX FAUQUIER GLOUCESTER
GOOCHLAND GREENSVILLE HANOVER
HENRICO ISLE OF WIGHT JAMES CITY
KING AND QUEEN KING GEORGE KING WILLIAM
LANCASTER LOUDOUN LOUISA
MATHEWS MIDDLESEX NEW KENT
NORTHAMPTON NORTHUMBERLAND ORANGE
POWHATAN PRINCE GEORGE PRINCE WILLIAM
RAPPAHANNOCK RICHMOND SOUTHAMPTON
SPOTSYLVANIA STAFFORD SURRY
SUSSEX WESTMORELAND YORK
VIRGINIA INDEPENDENT CITIES INCLUDED ARE
ALEXANDRIA CHESAPEAKE COLONIAL HEIGHTS
EMPORIA FAIRFAX FALLS CHURCH
FRANKLIN FREDERICKSBURG HAMPTON
HOPEWELL MANASSAS MANASSAS PARK
NEWPORT NEWS NORFOLK PETERSBURG
POQUOSON PORTSMOUTH RICHMOND
SUFFOLK VIRGINIA BEACH WILLIAMSBURG
$$
ANZ530-531-532-533-534-535-536-537-538-539-540-541-542-543-630-
631-632-634-635-636-637-638-650-652-654-656-011940-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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
CHESAPEAKE BAY FROM SMITH POINT TO WINDMILL POINT VA
CHESAPEAKE BAY FROM WINDMILL POINT TO NEW POINT COMFORT VA
CHESAPEAKE BAY FROM NEW POINT COMFORT TO LITTLE CREEK VA
CHESAPEAKE BAY FROM LITTLE CREEK VA TO CAPE HENRY VA INCLUDING
THE CHESAPEAKE BAY BRIDGE TUNNEL
RAPPAHANNOCK RIVER FROM URBANNA TO WINDMILL POINT
YORK RIVER
JAMES RIVER FROM JAMESTOWN TO THE JAMES RIVER BRIDGE
JAMES RIVER FROM JAMES RIVER BRIDGE TO HAMPTON ROADS
BRIDGE-TUNNEL
COASTAL WATERS FROM FENWICK ISLAND DE TO CHINCOTEAGUE VA OUT 20
NM
COASTAL WATERS FROM CHINCOTEAGUE TO PARRAMORE ISLAND VA OUT 20 NM
COASTAL WATERS FROM PARRAMORE ISLAND TO CAPE CHARLES LIGHT VA OUT
20 NM
COASTAL WATERS FROM CAPE CHARLES LIGHT TO VIRGINIA-NORTH CAROLINA
BORDER OUT TO 20 NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (60%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (50%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Low (<5%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (<5%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (60%)
|
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% (EF2-EF5 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.
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