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 215
NWS Storm Prediction Center Norman OK
110 PM CDT Fri May 12 2023
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Far Western Iowa
Central and Eastern Nebraska
South-Central South Dakota
* Effective this Friday afternoon and evening from 110 PM until
900 PM CDT.
* Primary threats include...
A couple tornadoes possible
Scattered large hail and isolated very large hail events to 2
inches in diameter likely
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Thunderstorms are expected to develop across portions of
the central Plains this afternoon. Environmental conditions will
support strong to severe thunderstorms, including some supercells
capable of tornadoes and very large hail (i.e. greater than 2 inches
in diameter).
The tornado watch area is approximately along and 70 statute miles
north and south of a line from 40 miles north northwest of Ainsworth
NE to 40 miles northeast of Shenandoah IA. 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.
&&
AVIATION...Tornadoes and 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 500. Mean
storm motion vector 19025.
...Mosier
SEL5
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 215
NWS Storm Prediction Center Norman OK
110 PM CDT Fri May 12 2023
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Far Western Iowa
Central and Eastern Nebraska
South-Central South Dakota
* Effective this Friday afternoon and evening from 110 PM until
900 PM CDT.
* Primary threats include...
A couple tornadoes possible
Scattered large hail and isolated very large hail events to 2
inches in diameter likely
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Thunderstorms are expected to develop across portions of
the central Plains this afternoon. Environmental conditions will
support strong to severe thunderstorms, including some supercells
capable of tornadoes and very large hail (i.e. greater than 2 inches
in diameter).
The tornado watch area is approximately along and 70 statute miles
north and south of a line from 40 miles north northwest of Ainsworth
NE to 40 miles northeast of Shenandoah IA. 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.
&&
AVIATION...Tornadoes and 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 500. Mean
storm motion vector 19025.
...Mosier
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW5
WW 215 TORNADO IA NE SD 121810Z - 130200Z
AXIS..70 STATUTE MILES NORTH AND SOUTH OF LINE..
40NNW ANW/AINSWORTH NE/ - 40NE SDA/SHENANDOAH IA/
..AVIATION COORDS.. 60NM N/S /35NNW ANW - 39E OVR/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 19025.
LAT...LON 44130028 42179488 40149488 42100028
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU5.
Watch 215 Status Report Messages:
STATUS REPORT #6 ON WW 215
VALID 130025Z - 130140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 W FNB TO
30 W SDA TO 25 W OMA TO 25 E OLU TO 30 WSW SUX TO 30 WSW YKN TO
15 SW 9V9 TO 20 ESE PIR.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 778
..THORNTON..05/13/23
ATTN...WFO...OAX...FSD...LBF...GID...ABR...UNR...
&&
STATUS REPORT FOR WT 215
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC071-085-093-129-133-137-145-149-155-165-193-130140-
IA
. IOWA COUNTIES INCLUDED ARE
FREMONT HARRISON IDA
MILLS MONONA MONTGOMERY
PAGE PLYMOUTH POTTAWATTAMIE
SHELBY WOODBURY
$$
NEC021-027-039-043-051-053-055-127-147-153-173-177-130140-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BURT CEDAR CUMING
DAKOTA DIXON DODGE
DOUGLAS NEMAHA RICHARDSON
SARPY THURSTON WASHINGTON
$$
SDC009-015-023-027-043-067-127-135-130140-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BON HOMME BRULE CHARLES MIX
CLAY DOUGLAS HUTCHINSON
UNION YANKTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #5 ON WW 215
VALID 122330Z - 130040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SSE BIE
TO 15 E LNK TO 20 ESE OFK TO 25 N OFK TO 15 N ONL TO 35 NE ANW TO
30 WSW 9V9 TO 45 SSW PIR.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 778
..THORNTON..05/12/23
ATTN...WFO...OAX...FSD...LBF...GID...ABR...UNR...
&&
STATUS REPORT FOR WT 215
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC071-085-093-129-133-137-145-149-155-165-193-130040-
IA
. IOWA COUNTIES INCLUDED ARE
FREMONT HARRISON IDA
MILLS MONONA MONTGOMERY
PAGE PLYMOUTH POTTAWATTAMIE
SHELBY WOODBURY
$$
NEC015-021-025-027-039-043-051-053-055-097-107-127-131-133-147-
153-155-173-177-179-130040-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BOYD BURT CASS
CEDAR CUMING DAKOTA
DIXON DODGE DOUGLAS
JOHNSON KNOX NEMAHA
OTOE PAWNEE RICHARDSON
SARPY SAUNDERS THURSTON
WASHINGTON WAYNE
$$
SDC009-015-023-027-043-053-067-085-127-135-130040-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BON HOMME BRULE CHARLES MIX
CLAY DOUGLAS GREGORY
HUTCHINSON LYMAN UNION
YANKTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 215
VALID 122235Z - 122340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SSE BIE
TO 15 E LNK TO 25 NW LNK TO 20 WNW OLU TO 30 SSE ONL TO 30 NNW
BUB TO 25 E MHN.
..THORNTON..05/12/23
ATTN...WFO...OAX...FSD...LBF...GID...ABR...UNR...
&&
STATUS REPORT FOR WT 215
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC071-085-093-129-133-137-145-149-155-165-193-122340-
IA
. IOWA COUNTIES INCLUDED ARE
FREMONT HARRISON IDA
MILLS MONONA MONTGOMERY
PAGE PLYMOUTH POTTAWATTAMIE
SHELBY WOODBURY
$$
NEC003-015-017-021-023-025-027-037-039-043-051-053-055-089-097-
103-107-119-127-131-133-139-141-147-149-153-155-167-173-177-179-
122340-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ANTELOPE BOYD BROWN
BURT BUTLER CASS
CEDAR COLFAX CUMING
DAKOTA DIXON DODGE
DOUGLAS HOLT JOHNSON
KEYA PAHA KNOX MADISON
NEMAHA OTOE PAWNEE
PIERCE PLATTE RICHARDSON
ROCK SARPY SAUNDERS
STANTON THURSTON WASHINGTON
WAYNE
$$
SDC009-015-023-027-043-053-067-085-123-127-135-122340-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BON HOMME BRULE CHARLES MIX
CLAY DOUGLAS GREGORY
HUTCHINSON LYMAN TRIPP
UNION YANKTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 215
VALID 122155Z - 122240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 E HSI TO
20 WNW OLU TO 30 SSE ONL TO 30 NNW BUB TO 30 E MHN.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 775
..THORNTON..05/12/23
ATTN...WFO...OAX...FSD...LBF...GID...ABR...UNR...
&&
STATUS REPORT FOR WT 215
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC071-085-093-129-133-137-145-149-155-165-193-122240-
IA
. IOWA COUNTIES INCLUDED ARE
FREMONT HARRISON IDA
MILLS MONONA MONTGOMERY
PAGE PLYMOUTH POTTAWATTAMIE
SHELBY WOODBURY
$$
NEC003-015-017-021-023-025-027-037-039-043-051-053-055-067-089-
097-103-107-109-119-127-131-133-139-141-147-149-153-155-159-167-
173-177-179-122240-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ANTELOPE BOYD BROWN
BURT BUTLER CASS
CEDAR COLFAX CUMING
DAKOTA DIXON DODGE
DOUGLAS GAGE HOLT
JOHNSON KEYA PAHA KNOX
LANCASTER MADISON NEMAHA
OTOE PAWNEE PIERCE
PLATTE RICHARDSON ROCK
SARPY SAUNDERS SEWARD
STANTON THURSTON WASHINGTON
WAYNE
$$
SDC009-015-023-027-043-053-067-085-123-127-135-122240-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BON HOMME BRULE CHARLES MIX
CLAY DOUGLAS GREGORY
HUTCHINSON LYMAN TRIPP
UNION YANKTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 215
VALID 122040Z - 122140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 E HSI TO
30 NE GRI TO 15 N BBW TO 35 N LBF.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 775
..MOORE..05/12/23
ATTN...WFO...OAX...FSD...LBF...GID...ABR...UNR...
&&
STATUS REPORT FOR WT 215
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC071-085-093-129-133-137-145-149-155-165-193-122140-
IA
. IOWA COUNTIES INCLUDED ARE
FREMONT HARRISON IDA
MILLS MONONA MONTGOMERY
PAGE PLYMOUTH POTTAWATTAMIE
SHELBY WOODBURY
$$
NEC003-009-011-015-017-021-023-025-027-037-039-043-051-053-055-
067-071-077-089-097-103-107-109-115-119-125-127-131-133-139-141-
143-147-149-153-155-159-167-173-175-177-179-183-185-122140-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ANTELOPE BLAINE BOONE
BOYD BROWN BURT
BUTLER CASS CEDAR
COLFAX CUMING DAKOTA
DIXON DODGE DOUGLAS
GAGE GARFIELD GREELEY
HOLT JOHNSON KEYA PAHA
KNOX LANCASTER LOUP
MADISON NANCE NEMAHA
OTOE PAWNEE PIERCE
PLATTE POLK RICHARDSON
ROCK SARPY SAUNDERS
SEWARD STANTON THURSTON
VALLEY WASHINGTON WAYNE
WHEELER YORK
$$
SDC009-015-023-027-043-053-067-085-123-127-135-122140-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BON HOMME BRULE CHARLES MIX
CLAY DOUGLAS GREGORY
HUTCHINSON LYMAN TRIPP
UNION YANKTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 215
VALID 121930Z - 122040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..MOORE..05/12/23
ATTN...WFO...OAX...FSD...LBF...GID...ABR...UNR...
&&
STATUS REPORT FOR WT 215
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC071-085-093-129-133-137-145-149-155-165-193-122040-
IA
. IOWA COUNTIES INCLUDED ARE
FREMONT HARRISON IDA
MILLS MONONA MONTGOMERY
PAGE PLYMOUTH POTTAWATTAMIE
SHELBY WOODBURY
$$
NEC003-009-011-015-017-021-023-025-027-037-039-041-043-051-053-
055-067-071-077-089-093-097-103-107-109-115-119-121-125-127-131-
133-139-141-143-147-149-153-155-159-163-167-173-175-177-179-183-
185-122040-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ANTELOPE BLAINE BOONE
BOYD BROWN BURT
BUTLER CASS CEDAR
COLFAX CUMING CUSTER
DAKOTA DIXON DODGE
DOUGLAS GAGE GARFIELD
GREELEY HOLT HOWARD
JOHNSON KEYA PAHA KNOX
LANCASTER LOUP MADISON
MERRICK NANCE NEMAHA
OTOE PAWNEE PIERCE
PLATTE POLK RICHARDSON
ROCK SARPY SAUNDERS
SEWARD SHERMAN STANTON
THURSTON VALLEY WASHINGTON
WAYNE WHEELER YORK
$$
SDC009-015-023-027-043-053-067-085-123-127-135-122040-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BON HOMME BRULE CHARLES MIX
CLAY DOUGLAS GREGORY
HUTCHINSON LYMAN TRIPP
UNION YANKTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (40%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (60%)
|
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 (90%)
|
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.