Satellite Alert Messages

The following messages give you information about NOAA's satellite operations, including various product changes, upgrades and outages.
Visit often for the latest information affecting data delivery.

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This page shows the 100 most recent messages. To view older messages, please choose the year and month from the menu above.


Last Update:   Aug 19, 2026 20:04 UTC

blue ball Administrative: FNMOC Power Maintenance Scheduled for August 20, 2026 - Issued: August 19, 2026 1959Z
blue ball Administrative: GOES West MDS Meso-1 Scheduled for August 19, 2026 - Issued: August 19, 2026 1924Z
blue ball Administrative: (Update #1) GOES West MDS Meso-1 Scheduled for August 18, 2026 - Issued: August 19, 2026 1914Z
blue ball Administrative: GOES East MDS Meso-2 Scheduled for August 19, 2026 - Issued: August 19, 2026 1854Z
blue ball Administrative: GOES-18 and GOES-19 ABI Lunar Trending Calibration Scans scheduled from August 27th to 30th, 2026- Issued: August 19, 2026 1817Z
blue ball Administrative: Update #2: NCCF Product Release 1.26-4.2 on August 19, 2026 - Issued: August 19, 2026 1630 UTC
blue ball Product Outage/Anomaly: EUMETSAT:Alert Message 2026-08-19 15:35:19 :: Sentinel-3A Service - Issued August 19, 2026 1558Z
blue ball Product Outage/Anomaly: EUMETSAT: Alert Message 2026-08-19 15:37:12 :: Sentinel-3B Service - Issued August 19, 2026 1555Z
blue ball Administrative: GOES East MDS Meso-1 Scheduled for August 19, 2026 - Issued: August 19, 2026 1415Z
blue ball Administrative: SOLAR-1 Planned Outage /MAG X-Axis 5 Rev Calibration - Issued: August 19th, 2026 1414Z
blue ball Administrative: Update #4 - Decommissioning of Advanced Microwave Scanning Radiometer (AMSR2) Products and Transition to AMSR3 Products on September 2, 2026, Issued: August 19, 2026 1400 UTC
blue ball Administrative: Product Distribution and Access (PDA) Planned ESPC Network Upgrades at the NSOF OPS site, beginning August 19th, 2026 1430Z - Issued: August 19th, 2026 1335Z
blue ball Administrative: Product Distribution and Access (PDA) Planned ESPC Network Upgrades at the NSOF OPS site, beginning August 19th, 2026 1430Z - Issued: August 19th, 2026 1334Z
blue ball Administrative: GOES West MDS Meso-2 Scheduled for August 19, 2026 - Issued: August 19, 2026 1310Z
blue ball Product Outage/Anomaly: NOAA-20 Data Delay - Issued: August 18, 2026 2349Z
blue ball Administrative: GOES West MDS Meso-1 Scheduled for August 18, 2026 - Issued: August 18, 2026 1815Z
blue ball Administrative: GOES West MDS Meso-2 Scheduled for August 18, 2026 - Issued: August 18, 2026 1338Z
blue ball Administrative: GOES East MDS Meso-1 Scheduled for August 18, 2026 - Issued: August 18, 2026 1209Z
blue ball Product Outage/Anomaly: Update #1 NOAA-20 Data Delay - Issued: August 18, 2026 0910Z
blue ball Product Outage/Anomaly: NOAA-20 Data Delay - Issued: August 18, 2026 0821Z
blue ball Administrative: EUMETSAT: Alert Message 2026-08-18 07:55:29 :: Sentinel-3A Service,Sentinel-3B Service - Issued August 18, 2026 0804Z
blue ball Administrative:Update #1 - JPSS Algorithm Updates in IDPS Block 2.3 Maintenance Release Mx17 Transition to Operations rescheduled for September 15, 2026 - Issued August 17, 2026 1800 UTC
blue ball Administrative: GOES West MDS Meso-2 Scheduled for August 17, 2026 - Issued: August 17, 2026 1611Z
blue ball Product Anomaly/Outage: GOSAT Data Delay - Issued: August 17, 2026 1456Z
blue ball Administrative: GOES East MDS Meso-2 Scheduled for August 17, 2026 - Issued: August 17, 2026 0740Z
blue ball Administrative: GOES East MDS Meso-1 Scheduled for August 17, 2026 - Issued: August 17, 2026 0735Z
blue ball Product Anomaly/Outage: Alert Message 2026-08-17 03:43:59 :: GDS-Metop-B - Issued: August 17, 2026 0415Z
blue ball Administrative: GOES West MDS Meso-1 Scheduled for August 16, 2026 - Issued: August 16, 2026 1925Z
blue ball Administrative: GOES West MDS Meso-2 Scheduled for August 16, 2026 - Issued: August 16, 2026 1825Z
blue ball Administrative: GOES East MDS Meso-2 Scheduled for August 16, 2026 - Issued: August 16, 2026 1503Z
blue ball Administrative: GOES West MDS Meso-2 Scheduled for August 15, 2026 - Issued: August 15, 2026 2059Z
blue ball Administrative: Update #1 GOES West MDS Meso-2 Scheduled for August 14, 2026 - Issued: August 15, 2026 2054Z
blue ball Administrative: GOES East MDS Meso-2 Scheduled for August 15, 2026 - Issued: August 15, 2026 1514Z
blue ball Administrative: GOES East MDS Meso-1 Scheduled for August 16, 2026 - Issued: August 16, 2026 1449Z
blue ball Administrative: GOES West MDS Meso-2 Scheduled for August 14, 2026 - Issued: August 14, 2026 1811Z
blue ball Administrative: GOES East MDS Meso-1 Scheduled for August 15, 2026 - Issued: August 14, 2026 1709Z
blue ball Administrative: GOES East MDS Meso-1 Scheduled for August 15, 2026 - Issued: August 14, 2026 1654Z
blue ball Administrative: GOES West MDS Meso-1 Scheduled for August 14, 2026 - Issued: August 14, 2026 1624Z
blue ball Administrative: GOES East MDS Meso-1 Scheduled for August 14, 2026 - Issued: August 14, 2026 1403Z
blue ball Administrative: GOES East MDS Meso-2 Scheduled for August 14, 2026 - Issued: August 14, 2026 1212Z
blue ball Administrative: GOES East MDS Meso-1 Scheduled for August 14, 2026 - Issued: August 14, 2026 1405Z
blue ball Administrative: Update #1: Retirement of Metop-B/C HRPT Data Scheduled for September 1, 2026, Issued: August 18, 2026 2000 UTC
blue ball Administrative: GOES West MDS Meso-2 Scheduled for August 13, 2026 - Issued: August 13, 2026 1920Z
blue ball Administrative: GOES West MDS Meso-1 Scheduled for August 13, 2026 - Issued: August 13, 2026 1835Z
blue ball Product Outage/Anomaly: Update #7 NPP SMD Data Delay - Issued: August 13, 2026 1823Z
blue ball Product Outage/Anomaly: Update #5 Jason3 Data Delay - Issued: August 13, 2026 1812Z
blue ball 1 of many Administrative: Himawari-9 Weekly Special Satellite Operations Schedule, Issued: August 13, 2026 1600 UTC
blue ball Product Outage/Anomaly: Update #4 Jason3 Data Delay - Issued: August 13, 2026 1555Z
blue ball Administrative: Critical Weather Day Declared for August 13, 2026 - Issued: August 13, 2026 1504Z
blue ball Product Outage/Anomaly: Update #3 Jason3 Data Delay - Issued: August 13, 2026 1431Z
blue ball Administrative: GOES West MDS Meso-1 Scheduled for August 13, 2026 - Issued: August 13, 2026 1429Z
blue ball Administrative: Correction: GOES West MDS Meso-1 Scheduled for August 13, 2026 - Issued: August 13, 2026 1418Z
blue ball Product Outage/Anomaly: NOAA-20 Data Delay - Issued: August 13, 2026 1349Z
blue ball Product Outage/Anomaly: Update #2: Jason3 Data Delay - Issued: August 13, 2026 1241Z
blue ball Product Outage/Anomaly: SOLAR-1 Planned Outage / SK#7 Maneuver - Issued: August 13, 2026 1203Z
blue ball Product Outage/Anomaly: Update #1: Jason3 Data Delay - Issued: August 13, 2026 1131Z
blue ball Product Outage/Anomaly: Jason3 Data Delay - Issued: August 13, 2026 1045Z
blue ball Administrative: GOES East MDS Meso-2 Scheduled for August 13, 2026 - Issued: August 13 2026 0855Z
blue ball Administrative: GOES East MDS Meso-1 Scheduled for August 13, 2026 - Issued: August 13 2026 0849Z
blue ball Administrative: Correction: GOES West MDS Meso-1 Scheduled for August 13, 2026 - Issued: August 13, 2026 0844Z
blue ball Administrative: GOES West MDS Meso-1 Scheduled for August 13, 2026 - Issued: August 13, 2026 0838Z
blue ball Administrative: GOES West MDS Meso-2 Scheduled for August 12, 2026 - Issued: August 12, 2026 2114Z
blue ball Administrative: Update #1: NCCF Product Release 1.26-4.2 on August 19, 2026 - Issued: August 12, 2026 2100 UTC
blue ball Administrative: Update #1 - GOES East MDS Meso-2 Scheduled for August 12, 2026 - Issued: August 12 2026 1907Z
blue ball Administrative: Update #1 - GOES West MDS Meso-1 Scheduled for August 12, 2026 - Issued: August 12, 2026 1411Z
blue ball Administrative: Update - Termination of Satellite Analysis Branch's Manual Dvorak Estimates on September 8, 2026 - Issued August 12, 2026 1403 UTC
blue ball Update#:This serves as the 1 month reminder for the Termination of Satellite Analysis Branch's Manual Dvorak Estimates on September 8, 2026.
blue ball Administrative: GOES East MDS Meso-2 Scheduled for August 12, 2026 - Issued: August 12 2026 0938Z
blue ball Administrative: GOES East MDS Meso-1 Scheduled for August 12, 2026 - Issued: August 12 2026 0932Z
blue ball Administrative: GOES West MDS Meso-1 Scheduled for August 12, 2026 - Issued: August 12 2026 0923Z
blue ball Administrative: GOES West MDS Meso-2 Scheduled for August 11, 2026 - Issued: August 11 2026 2310Z
blue ball Product Outage/Anomaly: EUMETSAT: Alert Message 2026-08-11 20:58:18 :: Sentinel-3A Service, Sentinel-3B Service Issued August 11, 2026 2109Z
blue ball Administrative: MetOp-B/1, & MetOp-C/3 AVHRR, Monthly Visible Calibration Update August 11, 2026 - Issued: August 11, 2026 1940Z
blue ball Product Anomaly/Outage: GOES-18 - Products Delivered to AWIPS, GRB, PDA -Issued: August 11, 2026 1936Z
blue ball SARSAT Outage/Anomaly: LUT Down Maryland 2 (MD2) GEO Ground Station Offline - Issued: August 11, 2026 1718
blue ball Product Outage/Anomaly: EUMETSAT: Alert Message 2026-08-11 15:56:46 :: Sentinel-3A Service,Sentinel-3B Service - Issued August 11, 2026 1605Z
blue ball Administrative: GOES East MDS Meso-2 Scheduled for August 11, 2026 - Issued: August 11, 2026 1526Z
blue ball Administrative: Correction: GOES East MDS Meso-2 Scheduled for August 11, 2026 - Issued: August 11, 2026 1459Z
blue ball Product Outage/Anomaly: EUMETSAT: Alert Message 2026-08-11 14:42:40 :: Sentinel-3B Service - Issued August 11, 2026 1454Z
blue ball Administrative: GOES West MDS Meso-1 Scheduled for August 11, 2026 - Issued: August 11 2026 1357Z
blue ball Product Outage/Anomaly: EUMETSAT: Alert Message 2026-08-11 13:16:28 :: Sentinel-3A Service, Sentinel-3B Service - Issued August 11, 1322Z
blue ball Administrative: Correction: GOES-18 ABI Solar Calibration Scan scheduled for August 17, 2026, Issued: August 11, 2026 1228Z
blue ball Administrative: GOES-19 ABI Solar Calibration Scan scheduled for August 17, 2026, Issued: August 11, 2026 1225Z
blue ball Administrative: GOES-18 ABI Solar Calibration Scan scheduled for August 17, 2026, Issued: August 11, 2026 1221Z
blue ball Administrative: GOES East MDS Meso-2 Scheduled for August 11, 2026 - Issued: August 11, 2026 1216Z
blue ball Administrative: Enhanced Caution Declared for August 11, 2026 - Issued: August 11, 2026 1207Z
blue ball Administrative: GOES West MDS Meso-2 Scheduled for August 11, 2026 - Issued: August 11, 2026 0959Z
blue ball Administrative: GOES East MDS Meso-2 Scheduled for August 11, 2026 - Issued: August 10, 2026 2227Z
blue ball Administrative: GOES East MDS Meso-1 Scheduled for August 11, 2026 - Issued: August 10, 2026 2224Z
blue ball Administrative: GOES West MDS Meso-1 Scheduled for August 10, 2026 - Issued: August 10, 2026 2214Z
blue ball Product Outage/Anomaly: Update #1: Data Delayed for some JPSS Products - Issued: August 10, 2026 2042Z
blue ball Product Outage/Anomaly: Update #6 NPP SMD Data Delay - Issued: August 10, 2026 2008Z
blue ball Product Anomaly/Outage: Update #1: GOES-18, 19 - Products delivered to AWIPS, GRB, PDA, SWPC -Issued: August 10, 2026 1929Z
blue ball Product Anomaly/Outage: GOES-18, 19 - Products delivered to AWIPS, GRB, PDA, SWPC -Issued: August 10, 2026 1841Z
blue ball Product Outage/Anomaly: Data Delayed for some JPSS Products - Issued: August 10, 2026 1728Z
blue ball Administrative: GOES West MDS Meso-2 Scheduled for August 10, 2026 - Issued: August 10, 2026 1612Z
blue ball Administrative: GOES West MDS Meso-1 Scheduled for August 10, 2026 - Issued: August 10, 2026 1357Z
blue ball Administrative: GOES East MDS Meso-2 Scheduled for August 10, 2026 - Issued: August 10, 2026 0908Z
blue ball Administrative: GOES East MDS Meso-1 Scheduled for August 10, 2026 - Issued: August 10, 2026 0900Z
blue ball Administrative: GOES West MDS Meso-1 Scheduled for August 09, 2026 - Issued: August 09, 2026 2038Z
blue ball Product Outage/Anomaly: Update #1: Metop-3 Data Loss - Issued: August
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The latest message is at the top. To decode the filenames for the messages listed above, MSGXXXHHMM.html, MSG means "Message", XXX is the Julian Date, HHMM is the time of the message in UTC. Files are now saved as html format.