Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL5
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 505
NWS Storm Prediction Center Norman OK
205 PM CST Tue Nov 10 2020
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Eastern Iowa
Northern Illinois
Southeast Wisconsin
Lake Michigan
* Effective this Tuesday afternoon and evening from 205 PM until
800 PM CST.
* Primary threats include...
A couple tornadoes possible
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
SUMMARY...A fast-moving line of thunderstorms will race
northeastward this afternoon across the watch area, producing
corridors of locally damaging winds. A few embedded tornadoes are
also possible along the line.
The tornado watch area is approximately along and 65 statute miles
east and west of a line from 60 miles southwest of Marseilles IL to
45 miles northwest of Milwaukee WI. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU5).
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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 504...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1 inch. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 23045.
...Hart
SEL5
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 505
NWS Storm Prediction Center Norman OK
205 PM CST Tue Nov 10 2020
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Eastern Iowa
Northern Illinois
Southeast Wisconsin
Lake Michigan
* Effective this Tuesday afternoon and evening from 205 PM until
800 PM CST.
* Primary threats include...
A couple tornadoes possible
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
SUMMARY...A fast-moving line of thunderstorms will race
northeastward this afternoon across the watch area, producing
corridors of locally damaging winds. A few embedded tornadoes are
also possible along the line.
The tornado watch area is approximately along and 65 statute miles
east and west of a line from 60 miles southwest of Marseilles IL to
45 miles northwest of Milwaukee WI. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU5).
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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 504...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1 inch. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 23045.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW5
WW 505 TORNADO IA IL WI LM 102005Z - 110200Z
AXIS..65 STATUTE MILES EAST AND WEST OF LINE..
60SW MMO/MARSEILLES IL/ - 45NW MKE/MILWAUKEE WI/
..AVIATION COORDS.. 55NM E/W /25S BDF - 21NNW BAE/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..65 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 23045.
LAT...LON 40759073 43408983 43408724 40758825
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU5.
Watch 505 Status Report Messages:
STATUS REPORT #6 ON WW 505
VALID 110040Z - 110140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NE BMI TO
50 ENE MMO.
..SPC..11/11/20
ATTN...WFO...DVN...LOT...ILX...MKX...
&&
STATUS REPORT FOR WT 505
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC031-053-075-091-197-110140-
IL
. ILLINOIS COUNTIES INCLUDED ARE
COOK FORD IROQUOIS
KANKAKEE WILL
$$
LMZ741-742-110140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
$$
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.
$$
STATUS REPORT #5 ON WW 505
VALID 102330Z - 110040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNE BMI
TO 50 SSW RAC TO 5 ENE MKE TO 30 NNW MKE.
..SPC..11/10/20
ATTN...WFO...DVN...LOT...ILX...MKX...
&&
STATUS REPORT FOR WT 505
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC031-043-053-063-075-091-097-105-197-110040-
IL
. ILLINOIS COUNTIES INCLUDED ARE
COOK DUPAGE FORD
GRUNDY IROQUOIS KANKAKEE
LAKE LIVINGSTON WILL
$$
WIC059-079-089-110040-
WI
. WISCONSIN COUNTIES INCLUDED ARE
KENOSHA MILWAUKEE OZAUKEE
$$
LMZ644-645-646-740-741-742-110040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
PORT WASHINGTON TO NORTH POINT LIGHT WI
NORTH POINT LIGHT TO WIND POINT WI
WIND POINT WI TO WINTHROP HARBOR IL
WINTHROP HARBOR TO WILMETTE HARBOR IL
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
$$
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.
$$
STATUS REPORT #4 ON WW 505
VALID 102235Z - 102340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 ENE PIA
TO 20 NNW MMO TO 30 WSW MKE TO 30 NE MSN.
..SPC..11/10/20
ATTN...WFO...DVN...LOT...ILX...MKX...
&&
STATUS REPORT FOR WT 505
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC031-037-043-063-089-093-097-099-105-111-197-102340-
IL
. ILLINOIS COUNTIES INCLUDED ARE
COOK DE KALB DUPAGE
GRUNDY KANE KENDALL
LAKE LA SALLE LIVINGSTON
MCHENRY WILL
$$
WIC059-079-089-101-127-131-133-102340-
WI
. WISCONSIN COUNTIES INCLUDED ARE
KENOSHA MILWAUKEE OZAUKEE
RACINE WALWORTH WASHINGTON
WAUKESHA
$$
LMZ644-645-646-740-741-742-102340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
PORT WASHINGTON TO NORTH POINT LIGHT WI
NORTH POINT LIGHT TO WIND POINT WI
WIND POINT WI TO WINTHROP HARBOR IL
WINTHROP HARBOR TO WILMETTE HARBOR IL
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
$$
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.
$$
STATUS REPORT #3 ON WW 505
VALID 102135Z - 102220Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 NW PIA TO
15 SW RFD TO 40 WNW RFD TO 15 ENE LNR.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1782
..SMITH..11/10/20
ATTN...WFO...DVN...LOT...ILX...MKX...
&&
STATUS REPORT FOR WT 505
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC007-011-031-037-043-057-063-089-093-097-099-103-105-111-123-
141-143-155-175-177-197-201-102220-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOONE BUREAU COOK
DE KALB DUPAGE FULTON
GRUNDY KANE KENDALL
LAKE LA SALLE LEE
LIVINGSTON MCHENRY MARSHALL
OGLE PEORIA PUTNAM
STARK STEPHENSON WILL
WINNEBAGO
$$
WIC025-045-055-059-079-089-101-105-127-131-133-102220-
WI
. WISCONSIN COUNTIES INCLUDED ARE
DANE GREEN JEFFERSON
KENOSHA MILWAUKEE OZAUKEE
RACINE ROCK WALWORTH
WASHINGTON WAUKESHA
$$
LMZ644-645-646-740-741-742-102220-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
PORT WASHINGTON TO NORTH POINT LIGHT WI
NORTH POINT LIGHT TO WIND POINT WI
WIND POINT WI TO WINTHROP HARBOR IL
WINTHROP HARBOR TO WILMETTE HARBOR IL
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
$$
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.
$$
STATUS REPORT #2 ON WW 505
VALID 102055Z - 102145Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 WNW PIA
TO 30 ENE MLI TO 30 NNE MLI.
..SMITH..11/10/20
ATTN...WFO...DVN...LOT...ILX...MKX...
&&
STATUS REPORT FOR WT 505
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC007-011-015-031-037-043-057-063-073-085-089-093-095-097-099-
103-105-111-123-141-143-155-175-177-195-197-201-102145-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOONE BUREAU CARROLL
COOK DE KALB DUPAGE
FULTON GRUNDY HENRY
JO DAVIESS KANE KENDALL
KNOX LAKE LA SALLE
LEE LIVINGSTON MCHENRY
MARSHALL OGLE PEORIA
PUTNAM STARK STEPHENSON
WHITESIDE WILL WINNEBAGO
$$
IAC045-097-102145-
IA
. IOWA COUNTIES INCLUDED ARE
CLINTON JACKSON
$$
WIC025-045-055-059-079-089-101-105-127-131-133-102145-
WI
. WISCONSIN COUNTIES INCLUDED ARE
DANE GREEN JEFFERSON
KENOSHA MILWAUKEE OZAUKEE
RACINE ROCK WALWORTH
WASHINGTON WAUKESHA
$$
LMZ644-645-646-740-741-742-102145-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
PORT WASHINGTON TO NORTH POINT LIGHT WI
NORTH POINT LIGHT TO WIND POINT WI
WIND POINT WI TO WINTHROP HARBOR IL
WINTHROP HARBOR TO WILMETTE HARBOR IL
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 505
VALID 102025Z - 102055Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1780
..SMITH..11/10/20
ATTN...WFO...DVN...LOT...ILX...MKX...
&&
STATUS REPORT FOR WT 505
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC007-011-015-031-037-043-057-063-073-085-089-093-095-097-099-
103-105-111-123-141-143-155-161-175-177-195-197-201-102055-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOONE BUREAU CARROLL
COOK DE KALB DUPAGE
FULTON GRUNDY HENRY
JO DAVIESS KANE KENDALL
KNOX LAKE LA SALLE
LEE LIVINGSTON MCHENRY
MARSHALL OGLE PEORIA
PUTNAM ROCK ISLAND STARK
STEPHENSON WHITESIDE WILL
WINNEBAGO
$$
IAC045-097-163-102055-
IA
. IOWA COUNTIES INCLUDED ARE
CLINTON JACKSON SCOTT
$$
WIC025-045-055-059-079-089-101-105-127-131-133-102055-
WI
. WISCONSIN COUNTIES INCLUDED ARE
DANE GREEN JEFFERSON
KENOSHA MILWAUKEE OZAUKEE
RACINE ROCK WALWORTH
WASHINGTON WAUKESHA
$$
LMZ644-645-646-740-741-742-102055-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
PORT WASHINGTON TO NORTH POINT LIGHT WI
NORTH POINT LIGHT TO WIND POINT WI
WIND POINT WI TO WINTHROP HARBOR IL
WINTHROP HARBOR TO WILMETTE HARBOR IL
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
$$
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 (40%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (60%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
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
|
High (70%)
|
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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