Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL3
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 163
NWS Storm Prediction Center Norman OK
135 PM CDT Tue Apr 30 2024
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Southern and Western Iowa
Eastern Nebraska
* Effective this Tuesday afternoon and evening from 135 PM until
1000 PM CDT.
* Primary threats include...
A few tornadoes possible
Scattered damaging winds and isolated significant gusts to 80
mph likely
Scattered large hail and isolated very large hail events to 2.5
inches in diameter likely
SUMMARY...Severe thunderstorms will develop this afternoon over
eastern Nebraska and track eastward across the watch area through
the evening.
The tornado watch area is approximately along and 60 statute miles
north and south of a line from 50 miles north northwest of Lincoln
NE to 35 miles east of Knoxville IA. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU3).
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 2.5 inches. Extreme turbulence and surface wind
gusts to 70 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 27035.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW3
WW 163 TORNADO IA NE 301835Z - 010300Z
AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE..
50NNW LNK/LINCOLN NE/ - 35E OXV/KNOXVILLE IA/
..AVIATION COORDS.. 50NM N/S /55E OBH - 40WSW IOW/
HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27035.
LAT...LON 42399714 42179245 40439245 40659714
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU3.
Watch 163 Status Report Messages:
STATUS REPORT #4 ON WW 163
VALID 010035Z - 010140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 W LWD TO
50 ESE FOD.
..SPC..05/01/24
ATTN...WFO...DMX...OAX...FSD...
&&
STATUS REPORT FOR WT 163
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC007-039-051-053-083-099-117-121-123-125-127-135-153-157-159-
169-171-179-181-185-010140-
IA
. IOWA COUNTIES INCLUDED ARE
APPANOOSE CLARKE DAVIS
DECATUR HARDIN JASPER
LUCAS MADISON MAHASKA
MARION MARSHALL MONROE
POLK POWESHIEK RINGGOLD
STORY TAMA WAPELLO
WARREN WAYNE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 163
VALID 302340Z - 010040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ESE SDA
TO 20 SSE FOD.
..SPC..04/30/24
ATTN...WFO...DMX...OAX...FSD...
&&
STATUS REPORT FOR WT 163
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-007-015-039-049-051-053-079-083-099-117-121-123-125-
127-135-153-157-159-169-171-173-175-179-181-185-010040-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS APPANOOSE
BOONE CLARKE DALLAS
DAVIS DECATUR HAMILTON
HARDIN JASPER LUCAS
MADISON MAHASKA MARION
MARSHALL MONROE POLK
POWESHIEK RINGGOLD STORY
TAMA TAYLOR UNION
WAPELLO WARREN WAYNE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 163
VALID 302100Z - 302240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 SSW BIE
TO 10 SE BIE TO 25 ESE LNK TO 25 W OMA TO 15 WSW TQE TO 20 SSW
SUX TO 30 WNW SUX.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 578
..LYONS..04/30/24
ATTN...WFO...DMX...OAX...FSD...
&&
STATUS REPORT FOR WT 163
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-007-009-015-025-027-029-039-047-049-051-053-071-073-
077-085-093-099-117-121-123-125-129-133-135-137-145-153-155-157-
159-161-165-169-173-175-179-181-185-193-302240-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS APPANOOSE
AUDUBON BOONE CALHOUN
CARROLL CASS CLARKE
CRAWFORD DALLAS DAVIS
DECATUR FREMONT GREENE
GUTHRIE HARRISON IDA
JASPER LUCAS MADISON
MAHASKA MARION MILLS
MONONA MONROE MONTGOMERY
PAGE POLK POTTAWATTAMIE
POWESHIEK RINGGOLD SAC
SHELBY STORY TAYLOR
UNION WAPELLO WARREN
WAYNE WOODBURY
$$
NEC021-025-043-055-097-127-131-133-147-153-177-302240-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BURT CASS DAKOTA
DOUGLAS JOHNSON NEMAHA
OTOE PAWNEE RICHARDSON
SARPY WASHINGTON
$$
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.
$$
STATUS REPORT #1 ON WW 163
VALID 301940Z - 302040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..LYONS..04/30/24
ATTN...WFO...DMX...OAX...FSD...
&&
STATUS REPORT FOR WT 163
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-007-009-015-025-027-029-039-047-049-051-053-071-073-
077-085-093-099-117-121-123-125-129-133-135-137-145-153-155-157-
159-161-165-169-173-175-179-181-185-193-302040-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS APPANOOSE
AUDUBON BOONE CALHOUN
CARROLL CASS CLARKE
CRAWFORD DALLAS DAVIS
DECATUR FREMONT GREENE
GUTHRIE HARRISON IDA
JASPER LUCAS MADISON
MAHASKA MARION MILLS
MONONA MONROE MONTGOMERY
PAGE POLK POTTAWATTAMIE
POWESHIEK RINGGOLD SAC
SHELBY STORY TAYLOR
UNION WAPELLO WARREN
WAYNE WOODBURY
$$
NEC021-023-025-037-039-043-053-055-109-119-131-141-151-153-155-
159-167-173-177-302040-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BURT BUTLER CASS
COLFAX CUMING DAKOTA
DODGE DOUGLAS LANCASTER
MADISON OTOE PLATTE
SALINE SARPY SAUNDERS
SEWARD STANTON THURSTON
WASHINGTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (50%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
High (70%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (60%)
|
Hail
Probability of 10 or more severe hail events
|
High (70%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (60%)
|
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% (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.