Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL7
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 317
NWS Storm Prediction Center Norman OK
950 PM CDT Sun Jun 28 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
South-central North Dakota
* Effective this Sunday night and Monday morning from 950 PM
until 200 AM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph possible
Isolated large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...A band of storms will move eastward across south-central
North Dakota late this evening and early in the overnight. As this
happens, these storms will remain capable of damaging winds and some
severe hail, although overall storm intensity is expected to
gradually diminish overnight.
The severe thunderstorm watch area is approximately along and 50
statute miles east and west of a line from 65 miles north northeast
of Bismarck ND to 70 miles southeast of Bismarck ND. 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 313...WW 314...WW
315...WW 316...
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 550. Mean storm motion vector
25025.
...Guyer
SEL7
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 317
NWS Storm Prediction Center Norman OK
950 PM CDT Sun Jun 28 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
South-central North Dakota
* Effective this Sunday night and Monday morning from 950 PM
until 200 AM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph possible
Isolated large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...A band of storms will move eastward across south-central
North Dakota late this evening and early in the overnight. As this
happens, these storms will remain capable of damaging winds and some
severe hail, although overall storm intensity is expected to
gradually diminish overnight.
The severe thunderstorm watch area is approximately along and 50
statute miles east and west of a line from 65 miles north northeast
of Bismarck ND to 70 miles southeast of Bismarck ND. 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 313...WW 314...WW
315...WW 316...
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 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.
SAW7
WW 317 SEVERE TSTM ND 290250Z - 290700Z
AXIS..50 STATUTE MILES EAST AND WEST OF LINE..
65NNE BIS/BISMARCK ND/ - 70SE BIS/BISMARCK ND/
..AVIATION COORDS.. 45NM E/W /56NNE BIS - 58SE BIS/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..65 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 25025.
LAT...LON 47649914 46059867 46050076 47640129
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU7.
Watch 317 Status Report Messages:
STATUS REPORT #3 ON WW 317
VALID 290530Z - 290640Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 ENE MBG
TO 45 NW JMS TO 35 NNW JMS.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1047
..GLEASON..06/29/20
ATTN...WFO...BIS...
&&
STATUS REPORT FOR WS 317
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NDC047-051-290640-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
LOGAN MCINTOSH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 317
VALID 290435Z - 290540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 N MBG TO
40 E BIS TO 60 E N60.
..SPC..06/29/20
ATTN...WFO...BIS...
&&
STATUS REPORT FOR WS 317
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NDC029-043-047-051-103-290540-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
EMMONS KIDDER LOGAN
MCINTOSH WELLS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 317
VALID 290340Z - 290440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 N MBG TO
50 E N60.
..SPC..06/29/20
ATTN...WFO...BIS...
&&
STATUS REPORT FOR WS 317
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NDC015-029-043-047-051-083-103-290440-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
BURLEIGH EMMONS KIDDER
LOGAN MCINTOSH SHERIDAN
WELLS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
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
|
High (70%)
|
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
