Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 330
NWS Storm Prediction Center Norman OK
1045 PM CDT Sat Jul 4 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western North Dakota
* Effective this Saturday night and Sunday morning from 1045 PM
until 400 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...Multiple clusters of storms will move from Montana into
western North Dakota overnight. The storm environment will support
a continued threat for occasional damaging gusts and large hail with
the more intense storms.
The severe thunderstorm watch area is approximately along and 40
statute miles east and west of a line from 60 miles north northeast
of Williston ND to 65 miles south southwest of Dickinson ND. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU0).
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 328...WW 329...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26030.
...Thompson
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 330 SEVERE TSTM ND 050345Z - 050900Z
AXIS..40 STATUTE MILES EAST AND WEST OF LINE..
60NNE ISN/WILLISTON ND/ - 65SSW DIK/DICKINSON ND/
..AVIATION COORDS.. 35NM E/W /52NNE ISN - 60SSW DIK/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 26030.
LAT...LON 48980224 45930249 45930415 48980401
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 330 Status Report Messages:
STATUS REPORT #4 ON WW 330
VALID 050805Z - 050940Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 WSW N60
TO 75 NNE ISN.
..BROYLES..07/05/20
ATTN...WFO...BIS...
&&
STATUS REPORT FOR WS 330
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NDC013-061-075-101-050940-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
BURKE MOUNTRAIL RENVILLE
WARD
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 330
VALID 050535Z - 050640Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NE 2WX TO
15 W DIK TO 35 ESE SDY TO 20 NE SDY TO 30 WNW ISN.
..BROYLES..07/05/20
ATTN...WFO...BIS...
&&
STATUS REPORT FOR WS 330
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NDC001-013-023-025-041-053-061-089-105-050640-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
ADAMS BURKE DIVIDE
DUNN HETTINGER MCKENZIE
MOUNTRAIL STARK WILLIAMS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 330
VALID 050455Z - 050540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NNE 2WX
TO 35 SE SDY TO 10 NNE SDY.
..SMITH..07/05/20
ATTN...WFO...BIS...
&&
STATUS REPORT FOR WS 330
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NDC001-007-011-013-023-025-041-053-061-087-089-105-050540-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
ADAMS BILLINGS BOWMAN
BURKE DIVIDE DUNN
HETTINGER MCKENZIE MOUNTRAIL
SLOPE STARK WILLIAMS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 330
VALID 050400Z - 050440Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SMITH..07/05/20
ATTN...WFO...BIS...
&&
STATUS REPORT FOR WS 330
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NDC001-007-011-013-023-025-033-041-053-061-087-089-105-050440-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
ADAMS BILLINGS BOWMAN
BURKE DIVIDE DUNN
GOLDEN VALLEY HETTINGER MCKENZIE
MOUNTRAIL SLOPE STARK
WILLIAMS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (5%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (30%)
|
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 (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 
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