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.
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 426
NWS Storm Prediction Center Norman OK
1005 PM CDT Sun Jun 16 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western and Northern Nebraska
Southern and Southeastern South Dakota
* Effective this Sunday night and Monday morning from 1005 PM
until 600 AM CDT.
* Primary threats include...
Scattered large hail likely with isolated very large hail events
to 2 inches in diameter possible
Isolated damaging wind gusts to 70 mph possible
SUMMARY...Scattered to numerous elevated thunderstorms are forecast
to develop as a low-level jet intensifies over the central Great
Plains late this evening into tonight. The stronger thunderstorms
will be capable of mainly a risk for large to very large hail (1 to
2 inches in diameter) and perhaps a more isolated threat for severe
gusts.
The severe thunderstorm watch area is approximately along and 75
statute miles north and south of a line from 10 miles north of
Scottsbluff NE to 20 miles north northeast of Sioux Falls SD. 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 425...
AVIATION...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
24035.
...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 426 SEVERE TSTM NE SD 170305Z - 171100Z
AXIS..75 STATUTE MILES NORTH AND SOUTH OF LINE..
10N BFF/SCOTTSBLUFF NE/ - 20NNE FSD/SIOUX FALLS SD/
..AVIATION COORDS.. 65NM N/S /10NNW BFF - 15NE FSD/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24035.
LAT...LON 43110360 44939658 42769658 40930360
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU6.
Watch 426 Status Report Messages:
STATUS REPORT #8 ON WW 426
VALID 170925Z - 171040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 NW OFK TO
45 SE FSD.
..LEITMAN..06/17/24
ATTN...WFO...LBF...CYS...FSD...UNR...ABR...
&&
STATUS REPORT FOR WS 426
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NEC051-171040-
NE
. NEBRASKA COUNTIES INCLUDED ARE
DIXON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #7 ON WW 426
VALID 170825Z - 170940Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNW BUB
TO 5 NE MHN TO 10 NNE VTN TO 25 SE FSD.
..LEITMAN..06/17/24
ATTN...WFO...LBF...CYS...FSD...UNR...ABR...
&&
STATUS REPORT FOR WS 426
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NEC015-017-031-051-089-103-149-170940-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BOYD BROWN CHERRY
DIXON HOLT KEYA PAHA
ROCK
$$
SDC009-023-027-083-135-170940-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BON HOMME CHARLES MIX CLAY
LINCOLN YANKTON
$$
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.
$$
STATUS REPORT #6 ON WW 426
VALID 170730Z - 170840Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 SSW MHN
TO 20 N MHN TO 25 N VTN TO 15 SSW 9V9 TO 10 NW MHE TO 30 NNE FSD.
..LEITMAN..06/17/24
ATTN...WFO...LBF...CYS...FSD...UNR...ABR...
&&
STATUS REPORT FOR WS 426
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NEC015-017-031-051-089-091-103-117-149-171-170840-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BOYD BROWN CHERRY
DIXON HOLT HOOKER
KEYA PAHA MCPHERSON ROCK
THOMAS
$$
SDC003-009-015-023-027-035-043-053-061-067-083-087-099-121-123-
125-135-170840-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
AURORA BON HOMME BRULE
CHARLES MIX CLAY DAVISON
DOUGLAS GREGORY HANSON
HUTCHINSON LINCOLN MCCOOK
MINNEHAHA TODD TRIPP
TURNER YANKTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #5 ON WW 426
VALID 170640Z - 170740Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 WNW LBF
TO 15 NW MHN TO 25 NNW VTN TO 10 NNW 9V9 TO 20 WNW HON.
..LEITMAN..06/17/24
ATTN...WFO...LBF...CYS...FSD...UNR...ABR...
&&
STATUS REPORT FOR WS 426
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NEC015-017-031-051-089-091-103-117-149-171-170740-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BOYD BROWN CHERRY
DIXON HOLT HOOKER
KEYA PAHA MCPHERSON ROCK
THOMAS
$$
SDC003-009-011-015-023-027-035-043-053-061-067-073-079-083-085-
087-097-099-101-111-121-123-125-135-170740-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
AURORA BON HOMME BROOKINGS
BRULE CHARLES MIX CLAY
DAVISON DOUGLAS GREGORY
HANSON HUTCHINSON JERAULD
LAKE LINCOLN LYMAN
MCCOOK MINER MINNEHAHA
MOODY SANBORN TODD
TRIPP TURNER YANKTON
$$
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.
$$
STATUS REPORT #4 ON WW 426
VALID 170640Z - 170740Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 WNW LBF
TO 15 NW MHN TO 25 NNW VTN TO 10 NNW 9V9 TO 20 WNW HON.
..LEITMAN..06/17/24
ATTN...WFO...LBF...CYS...FSD...UNR...ABR...
&&
STATUS REPORT FOR WS 426
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NEC015-017-031-051-089-091-103-117-149-171-170740-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BOYD BROWN CHERRY
DIXON HOLT HOOKER
KEYA PAHA MCPHERSON ROCK
THOMAS
$$
SDC003-009-011-015-023-027-035-043-053-061-067-073-079-083-085-
087-097-099-101-111-121-123-125-135-170740-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
AURORA BON HOMME BROOKINGS
BRULE CHARLES MIX CLAY
DAVISON DOUGLAS GREGORY
HANSON HUTCHINSON JERAULD
LAKE LINCOLN LYMAN
MCCOOK MINER MINNEHAHA
MOODY SANBORN TODD
TRIPP TURNER YANKTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 426
VALID 170540Z - 170640Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 NW IML TO
25 E AIA TO 35 W CDR.
..LEITMAN..06/17/24
ATTN...WFO...LBF...CYS...FSD...UNR...ABR...
&&
STATUS REPORT FOR WS 426
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NEC005-015-017-031-045-051-075-089-091-101-103-117-149-161-171-
170640-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ARTHUR BOYD BROWN
CHERRY DAWES DIXON
GRANT HOLT HOOKER
KEITH KEYA PAHA MCPHERSON
ROCK SHERIDAN THOMAS
$$
SDC003-007-009-011-015-017-023-027-035-043-053-061-067-071-073-
075-079-083-085-087-095-097-099-101-102-111-121-123-125-135-
170640-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
AURORA BENNETT BON HOMME
BROOKINGS BRULE BUFFALO
CHARLES MIX CLAY DAVISON
DOUGLAS GREGORY HANSON
HUTCHINSON JACKSON JERAULD
JONES LAKE LINCOLN
LYMAN MCCOOK MELLETTE
MINER MINNEHAHA MOODY
OGLALA LAKOTA SANBORN TODD
TRIPP TURNER YANKTON
$$
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.
$$
STATUS REPORT #2 ON WW 426
VALID 170450Z - 170540Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1296
..DEAN..06/17/24
ATTN...WFO...LBF...CYS...FSD...UNR...ABR...
&&
STATUS REPORT FOR WS 426
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NEC005-013-015-017-031-033-045-049-051-069-075-089-091-101-103-
105-117-123-149-161-171-170540-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ARTHUR BOX BUTTE BOYD
BROWN CHERRY CHEYENNE
DAWES DEUEL DIXON
GARDEN GRANT HOLT
HOOKER KEITH KEYA PAHA
KIMBALL MCPHERSON MORRILL
ROCK SHERIDAN THOMAS
$$
SDC003-007-009-011-015-017-023-027-035-043-053-061-067-071-073-
075-079-083-085-087-095-097-099-101-102-111-121-123-125-135-
170540-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
AURORA BENNETT BON HOMME
BROOKINGS BRULE BUFFALO
CHARLES MIX CLAY DAVISON
DOUGLAS GREGORY HANSON
HUTCHINSON JACKSON JERAULD
JONES LAKE LINCOLN
LYMAN MCCOOK MELLETTE
MINER MINNEHAHA MOODY
OGLALA LAKOTA SANBORN TODD
TRIPP TURNER YANKTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 426
VALID 170320Z - 170440Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..DEAN..06/17/24
ATTN...WFO...LBF...CYS...FSD...UNR...ABR...
&&
STATUS REPORT FOR WS 426
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NEC005-013-015-017-031-033-045-049-051-069-075-089-091-101-103-
105-117-123-149-161-171-170440-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ARTHUR BOX BUTTE BOYD
BROWN CHERRY CHEYENNE
DAWES DEUEL DIXON
GARDEN GRANT HOLT
HOOKER KEITH KEYA PAHA
KIMBALL MCPHERSON MORRILL
ROCK SHERIDAN THOMAS
$$
SDC003-007-009-011-015-017-023-027-035-043-053-061-067-071-073-
075-079-083-085-087-095-097-099-101-102-111-121-123-125-135-
170440-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
AURORA BENNETT BON HOMME
BROOKINGS BRULE BUFFALO
CHARLES MIX CLAY DAVISON
DOUGLAS GREGORY HANSON
HUTCHINSON JACKSON JERAULD
JONES LAKE LINCOLN
LYMAN MCCOOK MELLETTE
MINER MINNEHAHA MOODY
OGLALA LAKOTA SANBORN TODD
TRIPP TURNER YANKTON
$$
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 (<5%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Low (20%)
|
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 (30%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (80%)
|
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.