Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 586
NWS Storm Prediction Center Norman OK
720 PM CDT Wed Jul 31 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northwest Iowa
Southwest Minnesota
Southeast South Dakota
* Effective this Wednesday night from 720 PM until Midnight CDT.
* Primary threats include...
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Scattered large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...Several discrete storms and clusters of thunderstorms are
forecast to continue to intensify this evening. Severe gusts
(60-75) are possible with the stronger outflow surges. A tornado is
possible, especially early this evening. Large hail may accompany
the stronger updrafts. Some consolidation into a linear cluster is
forecast later this evening into parts of the southwest Minnesota
vicinity.
The severe thunderstorm watch area is approximately along and 40
statute miles north and south of a line from 55 miles west southwest
of Mitchell SD to 30 miles northeast of Worthington MN. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU6).
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 582...WW 583...WW
584...WW 585...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
29015.
...Smith
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 586
NWS Storm Prediction Center Norman OK
720 PM CDT Wed Jul 31 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northwest Iowa
Southwest Minnesota
Southeast South Dakota
* Effective this Wednesday night from 720 PM until Midnight CDT.
* Primary threats include...
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Scattered large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...Several discrete storms and clusters of thunderstorms are
forecast to continue to intensify this evening. Severe gusts
(60-75) are possible with the stronger outflow surges. A tornado is
possible, especially early this evening. Large hail may accompany
the stronger updrafts. Some consolidation into a linear cluster is
forecast later this evening into parts of the southwest Minnesota
vicinity.
The severe thunderstorm watch area is approximately along and 40
statute miles north and south of a line from 55 miles west southwest
of Mitchell SD to 30 miles northeast of Worthington MN. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU6).
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 582...WW 583...WW
584...WW 585...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
29015.
...Smith
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW6
WW 586 SEVERE TSTM IA MN SD 010020Z - 010500Z
AXIS..40 STATUTE MILES NORTH AND SOUTH OF LINE..
55WSW MHE/MITCHELL SD/ - 30NE OTG/WORTHINGTON MN/
..AVIATION COORDS.. 35NM N/S /61NNW ONL - 31S RWF/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..65 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 29015.
LAT...LON 44049904 44549515 43389515 42889904
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU6.
Watch 586 Status Report Messages:
STATUS REPORT #2 ON WW 586
VALID 010440Z - 010540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 WNW YKN
TO 20 NNW FSD TO 20 SSE RWF.
..BROYLES..08/01/24
ATTN...WFO...FSD...
&&
STATUS REPORT FOR WS 586
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC059-119-143-010540-
IA
. IOWA COUNTIES INCLUDED ARE
DICKINSON LYON OSCEOLA
$$
MNC033-063-101-105-133-010540-
MN
. MINNESOTA COUNTIES INCLUDED ARE
COTTONWOOD JACKSON MURRAY
NOBLES ROCK
$$
SDC083-099-125-010540-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
LINCOLN MINNEHAHA TURNER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 586
VALID 010245Z - 010340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..08/01/24
ATTN...WFO...FSD...
&&
STATUS REPORT FOR WS 586
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC059-119-143-010340-
IA
. IOWA COUNTIES INCLUDED ARE
DICKINSON LYON OSCEOLA
$$
MNC033-063-081-083-101-105-117-133-010340-
MN
. MINNESOTA COUNTIES INCLUDED ARE
COTTONWOOD JACKSON LINCOLN
LYON MURRAY NOBLES
PIPESTONE ROCK
$$
SDC009-011-023-035-043-053-061-067-079-083-087-097-099-101-125-
135-010340-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BON HOMME BROOKINGS CHARLES MIX
DAVISON DOUGLAS GREGORY
HANSON HUTCHINSON LAKE
LINCOLN MCCOOK MINER
MINNEHAHA MOODY TURNER
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
|
Mod (60%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (40%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (10%)
|
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.
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