Update #1: The Critical Weather Day in support of Severe Thunderstorm Operations has ended as scheduled.

Topic: Critical Weather Day Has Been Declared

Date/Time Issued: April 17, 2026 1710Z

Product(s) or Data Impacted: NWS IT Enterprise

Date/Time Initial Impact: April 17, 2026 1700Z (107)

Date/Time Expected End: April 18, 2026 1200Z  (108)

Length of Event: 19 Hours

Who: NCEP, NCF, NWS Pacific Region

Details/Specifics: Severe Thunderstorm ops across the Central and Southern Plains to Middle and Upper Mississippi Valley. 

Please visit the CWD status page for more information: https://www.nco.ncep.noaa.gov/status/cwd/

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