Current Mesoscale DiscussionsUpdated: Mon Aug 10 19:57:03 UTC 2026Mesoscale Discussion #1901Issued: 10/1939 UTCUntil: 10/2145 UTCConcerning: SEVERE THUNDERSTORM WATCH 555...Mesoscale Discussion #1900Issued: 10/1900 UTCUntil: 10/2100 UTCConcerning: SEVERE POTENTIAL...WATCH POSSIBLEMesoscale Discussion #1899Issued: 10/1829 UTCUntil: 10/2000 UTCConcerning: SEVERE THUNDERSTORM WATCH 554...Mesoscale Discussion #1898Issued: 10/1747 UTCUntil: 10/2015 UTCConcerning: SEVERE POTENTIAL...WATCH POSSIBLEAll times are UTCNotice: The responsibility for Heavy Rain Mesoscale Discussions has been transferred to the Weather Prediction Center (WPC) on April 9, 2013. Click here for the Service Change Notice. Archived Convective ProductsTo view convective products for a previous day, type in the date you wish to retrieve (e.g. 20040529 for May 29, 2004). Data available since January 1, 2004.