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 340
NWS Storm Prediction Center Norman OK
755 PM CDT Tue Jul 7 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western and central North Dakota
* Effective this Tuesday night and Wednesday morning from 755 PM
until 200 AM CDT.
* Primary threats include...
Widespread damaging winds and isolated significant gusts to 80
mph likely
Scattered large hail likely with isolated very large hail events
to 2 inches in diameter possible
A tornado or two possible
SUMMARY...Lines of storms, with a history of severe winds in excess
of 80 mph, will spread quickly eastward from eastern Montana into
North Dakota through early tonight. The storm environment will
likely maintain the damaging-wind threat with bowing segments, as
well as the potential for large hail with the stronger storms. An
isolated tornado or two will also be possible with embedded
circulations.
The severe thunderstorm watch area is approximately along and 105
statute miles east and west of a line from 55 miles north northwest
of Minot ND to 20 miles east of Lemmon SD. 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 338...WW 339...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
26045.
...Thompson
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 340
NWS Storm Prediction Center Norman OK
755 PM CDT Tue Jul 7 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western and central North Dakota
* Effective this Tuesday night and Wednesday morning from 755 PM
until 200 AM CDT.
* Primary threats include...
Widespread damaging winds and isolated significant gusts to 80
mph likely
Scattered large hail likely with isolated very large hail events
to 2 inches in diameter possible
A tornado or two possible
SUMMARY...Lines of storms, with a history of severe winds in excess
of 80 mph, will spread quickly eastward from eastern Montana into
North Dakota through early tonight. The storm environment will
likely maintain the damaging-wind threat with bowing segments, as
well as the potential for large hail with the stronger storms. An
isolated tornado or two will also be possible with embedded
circulations.
The severe thunderstorm watch area is approximately along and 105
statute miles east and west of a line from 55 miles north northwest
of Minot ND to 20 miles east of Lemmon SD. 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 338...WW 339...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
26045.
...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 340 SEVERE TSTM ND 080055Z - 080700Z
AXIS..105 STATUTE MILES EAST AND WEST OF LINE..
55NNW MOT/MINOT ND/ - 20E Y22/LEMMON SD/
..AVIATION COORDS.. 90NM E/W /48NNW MOT - 51N DPR/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 26045.
LAT...LON 48989943 45919957 45910394 48980406
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 340 Status Report Messages:
STATUS REPORT #3 ON WW 340
VALID 080555Z - 080640Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 W Y22 TO
35 WNW BIS TO 40 NNE BIS TO 45 ENE N60 TO 70 NNE MOT.
..BROYLES..07/08/20
ATTN...WFO...BIS...
&&
STATUS REPORT FOR WS 340
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NDC015-029-037-043-059-065-069-079-083-085-103-080640-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
BURLEIGH EMMONS GRANT
KIDDER MORTON OLIVER
PIERCE ROLETTE SHERIDAN
SIOUX 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 #2 ON WW 340
VALID 080435Z - 080540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NNE 2WX
TO 50 W BIS TO 35 S N60 TO 20 WSW N60 TO 15 WNW MOT TO 50 N MOT.
..DIAL..07/08/20
ATTN...WFO...BIS...
&&
STATUS REPORT FOR WS 340
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NDC001-009-015-029-037-041-043-049-055-057-059-065-069-079-083-
085-101-103-080540-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
ADAMS BOTTINEAU BURLEIGH
EMMONS GRANT HETTINGER
KIDDER MCHENRY MCLEAN
MERCER MORTON OLIVER
PIERCE ROLETTE SHERIDAN
SIOUX WARD 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 340
VALID 080340Z - 080440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 SSE BHK
TO 5 S DIK TO 30 NNW DIK TO 45 SE ISN TO 50 E ISN TO 45 WNW MOT
TO 55 NNW MOT.
..DIAL..07/08/20
ATTN...WFO...BIS...
&&
STATUS REPORT FOR WS 340
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NDC001-009-011-015-025-029-037-041-043-049-055-057-059-061-065-
069-075-079-083-085-089-101-103-080440-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
ADAMS BOTTINEAU BOWMAN
BURLEIGH DUNN EMMONS
GRANT HETTINGER KIDDER
MCHENRY MCLEAN MERCER
MORTON MOUNTRAIL OLIVER
PIERCE RENVILLE ROLETTE
SHERIDAN SIOUX STARK
WARD 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 (5%)
|
Wind
Probability of 10 or more severe wind events
|
High (80%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (60%)
|
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 (>95%)
|
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
