SPC Severe Thunderstorm Watch 301

WW 301 SEVERE TSTM MT ND SD WY 212210Z - 220500Z
        
WW 0301 Image
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 301
NWS Storm Prediction Center Norman OK
410 PM MDT Sat Jul 21 2018

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Far Eastern Montana
  Western North Dakota
  Western South Dakota
  Northeast Wyoming

* Effective this Saturday afternoon and evening from 410 PM until
  1100 PM MDT.

* Primary threats include...
  Scattered large hail likely with isolated very large hail events
    to 2.5 inches in diameter possible
  Isolated damaging wind gusts to 70 mph possible
  A tornado or two possible

SUMMARY...Storms will continue to develop and intensify in several
different areas across the region, including a well-organized
cluster of storms already ongoing across northeast Montana into
northwest North Dakota. Large hail and damaging winds will be the
primary concerns as storms, including a few supercells, spread
east/southeastward across a relatively narrow axis of moderately
unstable air through this evening.

The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 25 miles north northeast
of Sidney MT to 55 miles southwest of Rapid City SD. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU1).

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 300...

AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
29025.

...Guyer

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SPC Severe Thunderstorm Watch 300

WW 300 SEVERE TSTM AL GA NC SC 212140Z - 220600Z
        
WW 0300 Image
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 300
NWS Storm Prediction Center Norman OK
540 PM EDT Sat Jul 21 2018

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Eastern Alabama
  Northern and central Georgia
  Western North Carolina
  Western South Carolina

* Effective this Saturday afternoon and Sunday morning from 540
  PM until 200 AM EDT.

* Primary threats include...
  Scattered damaging winds likely with isolated significant gusts
    to 75 mph possible
  Scattered large hail likely with isolated very large hail events
    to 3 inches in diameter possible
  A tornado or two possible

SUMMARY...Strong mid/high-level northwesterly winds by mid/late-July
standards will continue to overspread a moist and moderate to
strongly unstable air mass across the region, including some areas
that were impacted by early-day storms. This will include the
potential for some supercells capable of large hail and damaging
winds with storms expected to generally spread southeastward through
the evening.

The severe thunderstorm watch area is approximately along and 75
statute miles north and south of a line from 40 miles west northwest
of Auburn AL to 35 miles east southeast of Spartanburg SC. 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.

&&

AVIATION...A few severe thunderstorms with hail surface and aloft to
3 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 600. Mean storm motion vector
31030.

...Guyer

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SPC Severe Thunderstorm Watch 301 Status Reports

WW 0301 Status Updates
      
WW 0301 Status Image
STATUS REPORT ON WW 301

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1124

..BENTLEY..07/21/18

ATTN...WFO...BYZ...GGW...BIS...UNR...


STATUS REPORT FOR WS 301 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

MTC011-025-083-109-220040-

MT 
.    MONTANA COUNTIES INCLUDED ARE

CARTER               FALLON              RICHLAND            
WIBAUX               


NDC001-007-011-025-033-041-053-087-089-105-220040-

ND 
.    NORTH DAKOTA COUNTIES INCLUDED ARE

ADAMS                BILLINGS            BOWMAN              
DUNN                 GOLDEN VALLEY       HETTINGER           
MCKENZIE             SLOPE               STARK               
WILLIAMS             


SDC019-033-047-063-081-093-102-103-105-220040-

SD 
.    SOUTH DAKOTA COUNTIES INCLUDED ARE
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SPC Severe Thunderstorm Watch 300 Status Reports

WW 0300 Status Updates
      
WW 0300 Status Image
STATUS FOR WATCH 0300 HAS NOT BEEN ISSUED YET
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SPC Severe Thunderstorm Watch 299 Status Reports

WW 0299 Status Updates
      
WW 0299 Status Image
STATUS REPORT ON WW 299

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 NNE CTY
TO 30 NE CTY TO 10 SW SGJ.

..DIAL..07/21/18

ATTN...WFO...TAE...JAX...


STATUS REPORT FOR WS 299 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

FLC029-041-212040-

FL 
.    FLORIDA COUNTIES INCLUDED ARE

DIXIE                GILCHRIST           


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.

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