Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 370
NWS Storm Prediction Center Norman OK
410 PM CDT Tue Jul 14 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and Northeast Iowa
Southeast Minnesota
Western and central Wisconsin
* Effective this Tuesday afternoon and evening from 410 PM until
1100 PM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Storms are expected to increase in coverage and intensity
near an east/southeastward-moving cold front, as well as across
central Iowa. Damaging winds and severe hail are the primary
hazards.
The severe thunderstorm watch area is approximately along and 65
statute miles north and south of a line from 65 miles west of Des
Moines IA to 15 miles east of Mosinee WI. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU0).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 369...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
26025.
...Guyer
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 370
NWS Storm Prediction Center Norman OK
410 PM CDT Tue Jul 14 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and Northeast Iowa
Southeast Minnesota
Western and central Wisconsin
* Effective this Tuesday afternoon and evening from 410 PM until
1100 PM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Storms are expected to increase in coverage and intensity
near an east/southeastward-moving cold front, as well as across
central Iowa. Damaging winds and severe hail are the primary
hazards.
The severe thunderstorm watch area is approximately along and 65
statute miles north and south of a line from 65 miles west of Des
Moines IA to 15 miles east of Mosinee WI. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU0).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 369...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
26025.
...Guyer
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 370 SEVERE TSTM IA MN WI 142110Z - 150400Z
AXIS..65 STATUTE MILES NORTH AND SOUTH OF LINE..
65W DSM/DES MOINES IA/ - 15E CWA/MOSINEE WI/
..AVIATION COORDS.. 55NM N/S /42ENE OVR - 51S RHI/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 26025.
LAT...LON 42469493 45728936 43848936 40589493
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 370 Status Report Messages:
STATUS REPORT #5 ON WW 370
VALID 150230Z - 150340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NE SDA TO
15 N DSM TO 45 NNE OXV TO 20 WNW CID TO 35 E ALO TO 50 SSW LSE TO
25 WSW VOK TO 15 NNE VOK TO 10 NNW GRB.
..LYONS..07/15/20
ATTN...WFO...DMX...ARX...DVN...GRB...
&&
STATUS REPORT FOR WS 370
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC003-007-039-043-051-053-099-107-117-121-123-125-135-157-159-
173-175-179-181-185-150340-
IA
. IOWA COUNTIES INCLUDED ARE
ADAMS APPANOOSE CLARKE
CLAYTON DAVIS DECATUR
JASPER KEOKUK LUCAS
MADISON MAHASKA MARION
MONROE POWESHIEK RINGGOLD
TAYLOR UNION WAPELLO
WARREN WAYNE
$$
WIC001-023-043-057-087-103-123-137-150340-
WI
. WISCONSIN COUNTIES INCLUDED ARE
ADAMS CRAWFORD GRANT
JUNEAU OUTAGAMIE RICHLAND
VERNON WAUSHARA
$$
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.
$$
STATUS REPORT #4 ON WW 370
VALID 150135Z - 150240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NE SDA TO
5 WNW DSM TO 10 SW ALO TO 35 NNE ALO TO 30 SSE LSE TO 5 WNW VOK
TO 35 E AUW.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1227
..LYONS..07/15/20
ATTN...WFO...DMX...ARX...DVN...GRB...
&&
STATUS REPORT FOR WS 370
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC003-005-007-011-013-019-039-043-051-053-055-065-095-099-107-
117-121-123-125-127-135-153-157-159-171-173-175-179-181-185-
150240-
IA
. IOWA COUNTIES INCLUDED ARE
ADAMS ALLAMAKEE APPANOOSE
BENTON BLACK HAWK BUCHANAN
CLARKE CLAYTON DAVIS
DECATUR DELAWARE FAYETTE
IOWA JASPER KEOKUK
LUCAS MADISON MAHASKA
MARION MARSHALL MONROE
POLK POWESHIEK RINGGOLD
TAMA TAYLOR UNION
WAPELLO WARREN WAYNE
$$
WIC001-023-043-057-097-103-115-123-135-137-150240-
WI
. WISCONSIN COUNTIES INCLUDED ARE
ADAMS CRAWFORD GRANT
JUNEAU PORTAGE RICHLAND
SHAWANO VERNON WAUPACA
WAUSHARA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 370
VALID 150045Z - 150140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 SSE DNS
TO 35 NNW DSM TO 45 NNE ALO TO 20 ENE LSE TO 35 SW CWA TO 35 E
AUW TO 35 N GRB.
..LYONS..07/15/20
ATTN...WFO...DMX...ARX...DVN...GRB...
&&
STATUS REPORT FOR WS 370
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-005-007-011-013-017-019-023-029-037-039-043-049-051-
053-055-065-075-077-083-095-099-107-117-121-123-125-127-135-153-
157-159-169-171-173-175-179-181-185-191-150140-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS ALLAMAKEE
APPANOOSE BENTON BLACK HAWK
BREMER BUCHANAN BUTLER
CASS CHICKASAW CLARKE
CLAYTON DALLAS DAVIS
DECATUR DELAWARE FAYETTE
GRUNDY GUTHRIE HARDIN
IOWA JASPER KEOKUK
LUCAS MADISON MAHASKA
MARION MARSHALL MONROE
POLK POWESHIEK RINGGOLD
STORY TAMA TAYLOR
UNION WAPELLO WARREN
WAYNE WINNESHIEK
$$
WIC001-023-043-057-081-097-103-115-123-135-137-150140-
WI
. WISCONSIN COUNTIES INCLUDED ARE
ADAMS CRAWFORD GRANT
JUNEAU MONROE PORTAGE
RICHLAND SHAWANO VERNON
WAUPACA WAUSHARA
$$
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.
$$
STATUS REPORT #2 ON WW 370
VALID 150000Z - 150140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 SSE DNS
TO 25 NNE AUW.
..LYONS..07/14/20
ATTN...WFO...DMX...ARX...DVN...GRB...
&&
STATUS REPORT FOR WS 370
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-005-007-009-011-013-015-017-019-023-029-037-039-043-
049-051-053-055-065-067-069-073-075-077-079-083-089-095-099-107-
117-121-123-125-127-135-153-157-159-169-171-173-175-179-181-185-
191-150140-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS ALLAMAKEE
APPANOOSE AUDUBON BENTON
BLACK HAWK BOONE BREMER
BUCHANAN BUTLER CASS
CHICKASAW CLARKE CLAYTON
DALLAS DAVIS DECATUR
DELAWARE FAYETTE FLOYD
FRANKLIN GREENE GRUNDY
GUTHRIE HAMILTON HARDIN
HOWARD IOWA JASPER
KEOKUK LUCAS MADISON
MAHASKA MARION MARSHALL
MONROE POLK POWESHIEK
RINGGOLD STORY TAMA
TAYLOR UNION WAPELLO
WARREN WAYNE WINNESHIEK
$$
MNC055-150140-
MN
. MINNESOTA COUNTIES INCLUDED ARE
HOUSTON
$$
WIC001-023-043-053-057-063-073-081-097-103-115-123-135-137-141-
150140-
WI
. WISCONSIN COUNTIES INCLUDED ARE
ADAMS CRAWFORD GRANT
JACKSON JUNEAU LA CROSSE
MARATHON MONROE PORTAGE
RICHLAND SHAWANO VERNON
WAUPACA WAUSHARA WOOD
$$
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.
$$
STATUS REPORT #1 ON WW 370
VALID 142225Z - 142340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 NW MCW TO
30 NW LSE TO 30 SW RHI.
..LYONS..07/14/20
ATTN...WFO...DMX...ARX...DVN...GRB...
&&
STATUS REPORT FOR WS 370
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-005-007-009-011-013-015-017-019-023-025-027-029-033-
037-039-043-049-051-053-055-065-067-069-073-075-077-079-083-089-
095-099-107-117-121-123-125-127-131-135-153-157-159-169-171-173-
175-179-181-185-187-191-197-142340-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS ALLAMAKEE
APPANOOSE AUDUBON BENTON
BLACK HAWK BOONE BREMER
BUCHANAN BUTLER CALHOUN
CARROLL CASS CERRO GORDO
CHICKASAW CLARKE CLAYTON
DALLAS DAVIS DECATUR
DELAWARE FAYETTE FLOYD
FRANKLIN GREENE GRUNDY
GUTHRIE HAMILTON HARDIN
HOWARD IOWA JASPER
KEOKUK LUCAS MADISON
MAHASKA MARION MARSHALL
MITCHELL MONROE POLK
POWESHIEK RINGGOLD STORY
TAMA TAYLOR UNION
WAPELLO WARREN WAYNE
WEBSTER WINNESHIEK WRIGHT
$$
MNC045-055-169-142340-
MN
. MINNESOTA COUNTIES INCLUDED ARE
FILLMORE HOUSTON WINONA
$$
WIC001-019-023-043-053-057-063-073-081-097-103-115-121-123-135-
137-141-142340-
WI
. WISCONSIN COUNTIES INCLUDED ARE
ADAMS CLARK CRAWFORD
GRANT JACKSON JUNEAU
LA CROSSE MARATHON MONROE
PORTAGE RICHLAND SHAWANO
TREMPEALEAU VERNON WAUPACA
WAUSHARA WOOD
$$
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
|
Low (20%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (5%)
|
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
|
Mod (50%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (30%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (80%)
|
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.
weather.gov 
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