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 316
NWS Storm Prediction Center Norman OK
855 PM CDT Sun Jun 28 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
North-central South Dakota
* Effective this Sunday night and Monday morning from 855 PM
until 100 AM CDT.
* Primary threats include...
Isolated significant damaging wind gusts to 80 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...A linear cluster of storms will continue to move
east-northeastward across north-central South Dakota this evening.
In association with these storms, a 82 mph wind gust was recently
observed at Faith, South Dakota.
The severe thunderstorm watch area is approximately along and 50
statute miles east and west of a line from 35 miles northwest of
Mobridge SD to 50 miles south southwest of Mobridge 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 313...WW 314...WW 315...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
25025.
...Guyer
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 316
NWS Storm Prediction Center Norman OK
855 PM CDT Sun Jun 28 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
North-central South Dakota
* Effective this Sunday night and Monday morning from 855 PM
until 100 AM CDT.
* Primary threats include...
Isolated significant damaging wind gusts to 80 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...A linear cluster of storms will continue to move
east-northeastward across north-central South Dakota this evening.
In association with these storms, a 82 mph wind gust was recently
observed at Faith, South Dakota.
The severe thunderstorm watch area is approximately along and 50
statute miles east and west of a line from 35 miles northwest of
Mobridge SD to 50 miles south southwest of Mobridge 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 313...WW 314...WW 315...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
25025.
...Guyer
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW6
WW 316 SEVERE TSTM SD 290155Z - 290600Z
AXIS..50 STATUTE MILES EAST AND WEST OF LINE..
35NW MBG/MOBRIDGE SD/ - 50SSW MBG/MOBRIDGE SD/
..AVIATION COORDS.. 45NM E/W /54SSW BIS - 39NW PIR/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 25025.
LAT...LON 45889991 44869980 44860184 45880198
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU6.
Watch 316 Status Report Messages:
STATUS REPORT #3 ON WW 316
VALID 290530Z - 290640Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 ENE PIR
TO 30 WNW PIR TO 40 WNW PIR TO 45 NW PIR TO 45 ENE MBG.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1047
..GLEASON..06/29/20
ATTN...WFO...ABR...
&&
STATUS REPORT FOR WS 316
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
SDC041-107-117-119-129-290640-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
DEWEY POTTER STANLEY
SULLY WALWORTH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 316
VALID 290435Z - 290540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 NNW PHP
TO 35 NW MBG.
..SPC..06/29/20
ATTN...WFO...ABR...
&&
STATUS REPORT FOR WS 316
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
SDC021-031-041-065-075-085-107-117-119-129-290540-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
CAMPBELL CORSON DEWEY
HUGHES JONES LYMAN
POTTER STANLEY SULLY
WALWORTH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 316
VALID 290250Z - 290340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..06/29/20
ATTN...WFO...ABR...
&&
STATUS REPORT FOR WS 316
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
SDC021-031-041-107-129-290340-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
CAMPBELL CORSON DEWEY
POTTER WALWORTH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (10%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (30%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Low (20%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (10%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (50%)
|
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.
weather.gov 
@NWSSPC
