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.
SEL7
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 437
NWS Storm Prediction Center Norman OK
140 PM CDT Tue Jul 5 2022
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northwest Iowa
Southwest Minnesota
Northern Nebraska
Far southeast South Dakota
* Effective this Tuesday afternoon and evening from 140 PM until
700 PM CDT.
* Primary threats include...
Widespread damaging winds and isolated significant gusts to 90
mph likely
Isolated large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...Long-lived bowing line segment will move east-southeast
across the rest of southeast South Dakota into portions of Minnesota
and Iowa. Trailing outflow will also potentially produce severe wind
gusts into portions of northern Nebraska.
The severe thunderstorm watch area is approximately along and 80
statute miles east and west of a line from 45 miles north northeast
of Worthington MN to 40 miles west southwest of Norfolk NE. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU7).
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 436...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 80 knots. A
few cumulonimbi with maximum tops to 600. Mean storm motion vector
29040.
...Grams
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW7
WW 437 SEVERE TSTM IA MN NE SD 051840Z - 060000Z
AXIS..80 STATUTE MILES EAST AND WEST OF LINE..
45NNE OTG/WORTHINGTON MN/ - 40WSW OFK/NORFOLK NE/
..AVIATION COORDS.. 70NM E/W /14SSW RWF - 24NNE OBH/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..80 KNOTS.
MAX TOPS TO 600. MEAN STORM MOTION VECTOR 29040.
LAT...LON 44249362 41759660 41759970 44249685
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU7.
Watch 437 Status Report Messages:
STATUS REPORT #3 ON WW 437
VALID 052240Z - 052340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 NNW OLU
TO 20 SW SUX TO 35 WSW SPW TO 25 WNW RWF.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1386.
..LEITMAN..07/05/22
ATTN...WFO...FSD...OAX...LBF...
&&
STATUS REPORT FOR WS 437
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC021-035-041-059-093-133-141-143-149-193-052340-
IA
. IOWA COUNTIES INCLUDED ARE
BUENA VISTA CHEROKEE CLAY
DICKINSON IDA MONONA
O'BRIEN OSCEOLA PLYMOUTH
WOODBURY
$$
MNC033-063-101-105-052340-
MN
. MINNESOTA COUNTIES INCLUDED ARE
COTTONWOOD JACKSON MURRAY
NOBLES
$$
NEC021-039-043-167-173-052340-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BURT CUMING DAKOTA
STANTON THURSTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 437
VALID 052135Z - 052240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 SE ANW TO
35 E ONL TO 20 SE YKN TO 25 SE FSD TO 10 SE FSD TO 10 NW FSD TO 5
ENE BKX.
..LEITMAN..07/05/22
ATTN...WFO...FSD...OAX...LBF...
&&
STATUS REPORT FOR WS 437
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC021-035-041-059-093-119-133-141-143-149-167-193-052240-
IA
. IOWA COUNTIES INCLUDED ARE
BUENA VISTA CHEROKEE CLAY
DICKINSON IDA LYON
MONONA O'BRIEN OSCEOLA
PLYMOUTH SIOUX WOODBURY
$$
MNC033-063-081-083-101-105-117-133-052240-
MN
. MINNESOTA COUNTIES INCLUDED ARE
COTTONWOOD JACKSON LINCOLN
LYON MURRAY NOBLES
PIPESTONE ROCK
$$
NEC003-011-021-027-039-043-051-071-089-119-139-167-173-179-183-
052240-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ANTELOPE BOONE BURT
CEDAR CUMING DAKOTA
DIXON GARFIELD HOLT
MADISON PIERCE STANTON
THURSTON WAYNE WHEELER
$$
SDC027-083-099-101-127-052240-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
CLAY LINCOLN MINNEHAHA
MOODY UNION
$$
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.
$$
STATUS REPORT #1 ON WW 437
VALID 052045Z - 052140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..KERR..07/05/22
ATTN...WFO...FSD...OAX...LBF...
&&
STATUS REPORT FOR WS 437
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC021-035-041-059-093-119-133-141-143-149-167-193-052140-
IA
. IOWA COUNTIES INCLUDED ARE
BUENA VISTA CHEROKEE CLAY
DICKINSON IDA LYON
MONONA O'BRIEN OSCEOLA
PLYMOUTH SIOUX WOODBURY
$$
MNC033-063-081-083-101-105-117-133-052140-
MN
. MINNESOTA COUNTIES INCLUDED ARE
COTTONWOOD JACKSON LINCOLN
LYON MURRAY NOBLES
PIPESTONE ROCK
$$
NEC003-009-011-015-017-021-027-031-039-043-051-071-089-103-107-
115-119-139-149-167-173-179-183-052140-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ANTELOPE BLAINE BOONE
BOYD BROWN BURT
CEDAR CHERRY CUMING
DAKOTA DIXON GARFIELD
HOLT KEYA PAHA KNOX
LOUP MADISON PIERCE
ROCK STANTON THURSTON
WAYNE WHEELER
$$
SDC009-027-083-099-101-125-127-135-052140-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BON HOMME CLAY LINCOLN
MINNEHAHA MOODY TURNER
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
|
Low (20%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (5%)
|
Wind
Probability of 10 or more severe wind events
|
High (80%)
|
Probability of 1 or more wind events > 65 knots
|
High (70%)
|
Hail
Probability of 10 or more severe hail events
|
Low (20%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (20%)
|
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.