Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 41
NWS Storm Prediction Center Norman OK
220 PM CDT Fri Apr 13 2018
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Southern Iowa
Northeast Kansas
Northwest Missouri
Southeast Nebraska
* Effective this Friday afternoon and evening from 220 PM until
900 PM CDT.
* Primary threats include...
A few tornadoes likely
Widespread large hail and isolated very large hail events to 2.5
inches in diameter likely
Scattered damaging wind gusts to 70 mph likely
SUMMARY...Thunderstorms developing over eastern Kansas will track
northeastward across the watch area, while other isolated cells form
over IA/northern MO. Supercells capable of large hail and a few
tornadoes are expected.
The tornado watch area is approximately along and 65 statute miles
east and west of a line from 40 miles west northwest of Knoxville IA
to 60 miles south southwest of Olathe KS. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU1).
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 39...WW 40...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 23035.
...Hart
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 41
NWS Storm Prediction Center Norman OK
220 PM CDT Fri Apr 13 2018
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Southern Iowa
Northeast Kansas
Northwest Missouri
Southeast Nebraska
* Effective this Friday afternoon and evening from 220 PM until
900 PM CDT.
* Primary threats include...
A few tornadoes likely
Widespread large hail and isolated very large hail events to 2.5
inches in diameter likely
Scattered damaging wind gusts to 70 mph likely
SUMMARY...Thunderstorms developing over eastern Kansas will track
northeastward across the watch area, while other isolated cells form
over IA/northern MO. Supercells capable of large hail and a few
tornadoes are expected.
The tornado watch area is approximately along and 65 statute miles
east and west of a line from 40 miles west northwest of Knoxville IA
to 60 miles south southwest of Olathe KS. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU1).
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 39...WW 40...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 23035.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW1
WW 41 TORNADO IA KS MO NE 131920Z - 140200Z
AXIS..65 STATUTE MILES EAST AND WEST OF LINE..
40WNW OXV/KNOXVILLE IA/ - 60SSW OJC/OLATHE KS/
..AVIATION COORDS.. 55NM E/W /10WNW DSM - 34WSW BUM/
HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 23035.
LAT...LON 41509258 38049395 38049634 41509508
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU1.
Watch 41 Status Report Messages:
STATUS REPORT #3 ON WW 41
VALID 140055Z - 140140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 N SZL TO
25 SE TOP TO 5 SE STJ TO 40 WNW CDJ TO 20 W LWD TO 25 E SDA TO 45
W DSM.
..SMITH..04/14/18
ATTN...WFO...DMX...OAX...TOP...EAX...
&&
STATUS REPORT FOR WT 41
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-007-039-051-053-117-121-123-125-135-159-173-175-179-
181-185-140140-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS APPANOOSE
CLARKE DAVIS DECATUR
LUCAS MADISON MAHASKA
MARION MONROE RINGGOLD
TAYLOR UNION WAPELLO
WARREN WAYNE
$$
KSC045-091-103-209-140140-
KS
. KANSAS COUNTIES INCLUDED ARE
DOUGLAS JOHNSON LEAVENWORTH
WYANDOTTE
$$
MOC001-021-025-033-047-049-061-063-079-081-095-115-117-129-165-
171-177-197-211-140140-
MO
. MISSOURI COUNTIES INCLUDED ARE
ADAIR BUCHANAN CALDWELL
CARROLL CLAY CLINTON
DAVIESS DEKALB GRUNDY
HARRISON JACKSON LINN
LIVINGSTON MERCER PLATTE
PUTNAM RAY SCHUYLER
SULLIVAN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 41
VALID 132305Z - 140040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SE EMP TO
10 SE FLV TO 20 W LWD TO 5 SE SDA.
..SMITH..04/13/18
ATTN...WFO...DMX...OAX...TOP...EAX...
&&
STATUS REPORT FOR WT 41
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-007-029-039-051-053-117-121-123-125-129-135-137-145-
155-159-173-175-179-181-185-140040-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS APPANOOSE
CASS CLARKE DAVIS
DECATUR LUCAS MADISON
MAHASKA MARION MILLS
MONROE MONTGOMERY PAGE
POTTAWATTAMIE RINGGOLD TAYLOR
UNION WAPELLO WARREN
WAYNE
$$
KSC003-031-045-059-091-103-107-121-209-140040-
KS
. KANSAS COUNTIES INCLUDED ARE
ANDERSON COFFEY DOUGLAS
FRANKLIN JOHNSON LEAVENWORTH
LINN MIAMI WYANDOTTE
$$
MOC001-013-021-025-033-037-047-049-061-063-079-081-083-095-101-
107-115-117-129-165-171-177-197-211-140040-
MO
. MISSOURI COUNTIES INCLUDED ARE
ADAIR BATES BUCHANAN
CALDWELL CARROLL CASS
CLAY CLINTON DAVIESS
DEKALB GRUNDY HARRISON
HENRY JACKSON JOHNSON
LAFAYETTE LINN LIVINGSTON
MERCER PLATTE PUTNAM
RAY SCHUYLER SULLIVAN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 41
VALID 132205Z - 132340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SE EMP TO
15 W FLV TO 20 SSW FNB.
..SMITH..04/13/18
ATTN...WFO...DMX...OAX...TOP...EAX...
&&
STATUS REPORT FOR WT 41
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-007-029-039-051-053-071-117-121-123-125-129-135-137-
145-155-159-173-175-179-181-185-132340-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS APPANOOSE
CASS CLARKE DAVIS
DECATUR FREMONT LUCAS
MADISON MAHASKA MARION
MILLS MONROE MONTGOMERY
PAGE POTTAWATTAMIE RINGGOLD
TAYLOR UNION WAPELLO
WARREN WAYNE
$$
KSC003-005-013-031-043-045-059-091-103-107-121-209-132340-
KS
. KANSAS COUNTIES INCLUDED ARE
ANDERSON ATCHISON BROWN
COFFEY DONIPHAN DOUGLAS
FRANKLIN JOHNSON LEAVENWORTH
LINN MIAMI WYANDOTTE
$$
MOC001-003-005-013-021-025-033-037-047-049-061-063-075-079-081-
083-087-095-101-107-115-117-129-147-165-171-177-197-211-227-
132340-
MO
. MISSOURI COUNTIES INCLUDED ARE
ADAIR ANDREW ATCHISON
BATES BUCHANAN CALDWELL
CARROLL CASS CLAY
CLINTON DAVIESS DEKALB
GENTRY GRUNDY HARRISON
HENRY HOLT JACKSON
JOHNSON LAFAYETTE LINN
LIVINGSTON MERCER NODAWAY
PLATTE PUTNAM RAY
SCHUYLER SULLIVAN WORTH
$$
NEC127-147-132340-
NE
. NEBRASKA COUNTIES INCLUDED ARE
NEMAHA RICHARDSON
$$
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
|
High (70%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (60%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
High (80%)
|
Probability of 1 or more hailstones > 2 inches
|
High (70%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (>95%)
|
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.
weather.gov 
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