Blue Flower

Watches

Storm Prediction Center
SPC Tornado/Severe Thunderstorm Watches
  1. WW 440 SEVERE TSTM IA IL IN WI LM 052135Z - 060500Z
    WW 0440 Image
    
    URGENT - IMMEDIATE BROADCAST REQUESTED
    Severe Thunderstorm Watch Number 440
    NWS Storm Prediction Center Norman OK
    435 PM CDT Tue Jul 5 2022
    
    The NWS Storm Prediction Center has issued a
    
    * Severe Thunderstorm Watch for portions of 
      Northeast Iowa
      Northern Illinois
      Northwest Indiana
      Southern Wisconsin
      Lake Michigan
    
    * Effective this Tuesday afternoon from 435 PM until Midnight
      CDT.
    
    * Primary threats include...
      Scattered damaging winds and isolated significant gusts to 80
        mph likely
      Scattered large hail and isolated very large hail events to 2
        inches in diameter possible
    
    SUMMARY...Thunderstorms are developing along a weak boundary.  These
    storms will pose a risk of large hail and damaging winds late this
    afternoon.  A fast-moving bow echo over northwest Iowa will approach
    parts of the watch area by early evening, resulting in an increased
    risk of widespread damaging wind gusts and some hail.
    
    The severe thunderstorm watch area is approximately along and 55
    statute miles north and south of a line from 20 miles west northwest
    of Waterloo IA to 35 miles north of Valparaiso IN. 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 437...WW 438...WW 439...
    
    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
    28030.
    
    ...Hart
    
    
    Read more
  2. WW 439 SEVERE TSTM MT 052100Z - 060400Z
    WW 0439 Image
    
    URGENT - IMMEDIATE BROADCAST REQUESTED
    Severe Thunderstorm Watch Number 439
    NWS Storm Prediction Center Norman OK
    300 PM MDT Tue Jul 5 2022
    
    The NWS Storm Prediction Center has issued a
    
    * Severe Thunderstorm Watch for portions of 
      Central to northeast Montana
    
    * Effective this Tuesday afternoon and evening from 300 PM until
      1000 PM MDT.
    
    * Primary threats include...
      Scattered damaging winds and isolated significant gusts to 75
        mph possible
      Scattered large hail and isolated very large hail events to 2.5
        inches in diameter possible
    
    SUMMARY...Multiple supercells should spread northeast from central
    into northeast Montana this evening with a threat for large hail and
    severe wind gusts.
    
    The severe thunderstorm watch area is approximately along and 80
    statute miles north and south of a line from 55 miles east of Wolf
    Point MT to 10 miles south of Harlowton MT. For a complete depiction
    of the watch see the associated watch outline update (WOUS64 KWNS
    WOU9).
    
    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 436...WW 437...WW 438...
    
    AVIATION...A few severe thunderstorms with hail surface and aloft to
    2.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
    few cumulonimbi with maximum tops to 500. Mean storm motion vector
    25035.
    
    ...Grams
    
    
    Read more
  3. WW 438 SEVERE TSTM IA MN NE 052050Z - 060300Z
    WW 0438 Image
    
    URGENT - IMMEDIATE BROADCAST REQUESTED
    Severe Thunderstorm Watch Number 438
    NWS Storm Prediction Center Norman OK
    350 PM CDT Tue Jul 5 2022
    
    The NWS Storm Prediction Center has issued a
    
    * Severe Thunderstorm Watch for portions of 
      Western and central Iowa
      Southwest to south-central Minnesota
      Eastern Nebraska
    
    * Effective this Tuesday afternoon and evening from 350 PM until
      1000 PM CDT.
    
    * Primary threats include...
      Scattered damaging winds and isolated significant gusts to 80
        mph likely
      Isolated very large hail events to 2 inches in diameter possible
      A tornado or two possible
    
    SUMMARY...Long-lived bowing MCS across southeast South Dakota will
    spread east-southeast across parts of eastern Nebraska, western and
    central Iowa and far southern Minnesota with severe wind gusts.
    Additional cells ahead of it will pose a threat for hail and wind.
    
    The severe thunderstorm watch area is approximately along and 90
    statute miles north and south of a line from 35 miles west of
    Denison IA to 40 miles southeast of Mason City IA. For a complete
    depiction of the watch see the associated watch outline update
    (WOUS64 KWNS WOU8).
    
    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 436...WW 437...
    
    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 600. Mean storm motion vector
    29040.
    
    ...Grams
    
    
    Read more
  4. WW 437 SEVERE TSTM IA MN NE SD 051840Z - 060000Z
    WW 0437 Image
    
    URGENT - IMMEDIATE BROADCAST REQUESTED
    Severe Thunderstorm Watch Number 437
    NWS Storm Prediction Center Norman OK
    140 PM CDT Tue Jul 5 2022
    
    The NWS Storm Prediction Center has issued a
    
    * Severe Thunderstorm Watch for portions of 
      Northwest Iowa
      Southwest Minnesota
      Northern Nebraska
      Far southeast South Dakota
    
    * Effective this Tuesday afternoon and evening from 140 PM until
      700 PM CDT.
    
    * Primary threats include...
      Widespread damaging winds and isolated significant gusts to 90
        mph likely
      Isolated large hail events to 1.5 inches in diameter possible
      A tornado or two possible
    
    SUMMARY...Long-lived bowing line segment will move east-southeast
    across the rest of southeast South Dakota into portions of Minnesota
    and Iowa. Trailing outflow will also potentially produce severe wind
    gusts into portions of northern Nebraska.
    
    The severe thunderstorm watch area is approximately along and 80
    statute miles east and west of a line from 45 miles north northeast
    of Worthington MN to 40 miles west southwest of Norfolk NE. 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 436...
    
    AVIATION...A few severe thunderstorms with hail surface and aloft to
    1.5 inches. Extreme turbulence and surface wind gusts to 80 knots. A
    few cumulonimbi with maximum tops to 600. Mean storm motion vector
    29040.
    
    ...Grams
    
    
    Read more
  5. WW 0440 Status Updates
    WW 0440 Status Image
    
    STATUS FOR WATCH 0440 HAS NOT BEEN ISSUED YET
    
    Read more