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:   Mar 13, 2026 20:04 UTC

blue ball Administrative: GOES West MDS Meso-1 Scheduled for March 13 2026 - Issued: March 13, 2026 1955Z
blue ball Administrative: GOES-19 Yaw Flip Maneuver Scheduled for March 19, 2026 - Issued: March 12, 2026 1935 UTC
blue ball Administrative: Modification to Hazard Mapping System (HMS) Fire Point Analysis on April 15, 2026 - Issued March 12, 2026 1400 UTC
blue ball Administrative: GOES-East MDS Meso-2 Scheduled for March 12, 2026 - Issued: March 12, 2026 1326Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for March 12, 2026 - Issued: March 12, 2026 1158Z
blue ball Administrative: Update #1 Enhanced Caution Event ended early for flooding ops across Hawaii. Issued: March 11, 2026 2338Z
blue ball Administrative: GOES-19 ABI Post Yaw Flip Solar Calibration Scan scheduled for March 19, 2026 - Issued: March 11, 2026 2010Z
blue ball Administrative: GOES-19 ABI Solar Calibration Scan Scheduled for March 19, 2026 - Issued: March 11, 2026 1950Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for March 11, 2026 - Issued: March 11, 2026 1420Z
blue ball Administrative: GOES-East MDS Meso-2 Scheduled for March 11, 2026 - Issued: March 11, 2026 1420Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for March 11, 2026 - Issued: March 11, 2026 1305Z
blue ball Administrative: Update#1: Critical Weather Day Declared for March 10, 2026 - Issued: March 11, 2026 1212Z
blue ball Administrative: Update #2: NCCF Product Upgrade 1.26-2.2 on March 11, 2026 - Issued: March 11, 2026 1145 UTC
blue ball Administrative: NWS IT enterprise operating with Enhanced Caution for March 11, 2026 - Issued: March 11, 2026 0706Z
blue ball Product Anomaly/Outage: GCOM-W1 SMD Data Loss - Issued: March 11, 2026 0339Z
blue ball Product Outage/Anomaly: Sentinel-6A Service Issued March 10, 2026 - Issued March 10, 2026 2338Z
blue ball Product Outage/Anomaly: Sentinel-6A Service Issued March 10, 2026 - Issued March 10, 2026 2302Z
blue ball Subject: Administrative: MetOp-B/1, & MetOp-C/3 AVHRR, Monthly Visible Calibration Update, 10 March 2026 - Issued: 10 March 2026 2156Z
blue ball Product Outage/Anomaly: Update#1 Alert Message 2026-03-10 20:19:37 :: Sentinel-6A Service Issued March 10, 2026 2110Z
blue ball Administrative: GOES West MDS Meso-2 Scheduled for March 10, 2026 - Issued: March 10, 2026 2055Z
blue ball Product Outage/Anomaly: Alert Message 2026-03-10 20:19:37 :: Sentinel-6A Service Issued March 10, 2026 2032Z
blue ball Administrative: GOES West MDS Meso-1 Scheduled for March 11, 2026 - Issued: March 10, 2026 1915Z
blue ball Administrative: NOAA-21 VIIRS Non-Roll Lunar Calibration Scheduled for March 28, 2026 Issued March 10, 2026 1903Z
blue ball Administrative: NOAA-20 VIIRS Non-Roll Lunar Calibration Scheduled for March 28, 2026 Issued March 10, 2026 1857Z
blue ball Administrative: S-NPP VIIRS Non-Roll Lunar Calibration Scheduled for March 28, 2026 Issued March 10, 2026 1851Z
blue ball Product Anomaly/Outage: Correction: GOES-18 - ABI L1b Bands 04, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16 products delivered to GRB, PDA -Issued: March 10, 2026 1716Z
blue ball Administrative: Critical Weather Day Declared for March 10, 2026 - Issued: March 10, 2026 1701Z
blue ball Administrative: GOES-18 ABI Solar Calibration Scan scheduled for March 16, 2026, Issued: March 10, 2026 1555Z
blue ball Administrative: GOES-19 SEISS MPS-LO Electron and Ion Microchannel Plate (MCP) HV Bias Calibration (impacts SEISS) Scheduled for March 16, 2026 1530z, Issued: March 10, 2026 1516Z
blue ball Administrative:Update#1 GOES-East MDS Meso-2 Scheduled for March 10, 2026 - Issued: March 10, 2026 1301Z
blue ball Administrative: GOES-East MDS Meso-2 Scheduled for March 10, 2026 - Issued: March 10, 2026 0908Z
blue ball Product Anomaly/Outage: GOES-18 - ABI L1b Bands 04, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16 products delivered to GRB, PDA -Issued: March 10, 2026 0837Z
blue ball Administrative: Update #1 - GOES West MDS Meso-1 Scheduled for March 09, 2026 - Issued: March 09, 2026 2319Z
blue ball Administrative: GOES West MDS Meso-1 Scheduled for March 09, 2026 - Issued: March 09, 2026 2248Z
blue ball Product Outage/Anomaly: Update #1: NCCF Missing GPM Data on March 07 at 2041Z - Issued March 09, 2026 1856Z
blue ball Product Outage/Anomaly: S-NPP Data Outage - Issued: March 9, 2026 1830Z
blue ball Administrative: GOES ASOS SCP Station List Update - Issued: March 9, 2026 1401 UTC
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for March 09, 2026 - Issued: March 09, 2026 1121Z
blue ball Administrative: GOES-East MDS Meso-2 Scheduled for March 08, 2026 - Issued: March 08, 2026 1818Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for March 08, 2026 - Issued: March 08, 2026 1753Z
blue ball Product Anomaly/Outage: NPP Missing Data - Issued: March 08, 2026 1716Z
blue ball Administrative: GOES-West MDS Meso-1 Scheduled for March 08, 2026 - Issued: March 08, 2026 1333Z
blue ball Product Outage/Anomaly: NCCF Missing GPM Data on March 07 at 2041Z Issued March 08, 2026 0251Z
blue ball Administrative: Update #1 Enhanced Caution Declared for March 06, 2026 - Issued: March 07, 2026 1204Z
blue ball Administrative:Correction: GOES-West MDS Meso-1 Scheduled for March 07, 2026 - Issued: March 07, 2026 1021Z
blue ball Administrative: GOES-West MDS Meso-1 Scheduled for March 07, 2026 - Issued: March 07, 2026 1011Z
blue ball Administrative: GOES-East MDS Meso-2 Scheduled for March 07, 2026 - Issued: March 07, 2026 1007Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for March 07, 2026 - Issued: March 07, 2026 1008Z
blue ball Product Outage/Anomaly: Update #1: Jason 3 Data Delay- Issued: March 7, 2026 0335Z
blue ball Product Anomaly/Outage: Corrections: NPP SMD Data Delay - Issued March 6, 2026 2023Z
blue ball Product Anomaly/Outage: Missing data for NPP - Issued March 6, 2026 2006Z
blue ball Product Outage/Anomaly: Jason 3 Data Delay- Issued: March 6, 2026 1949Z
blue ball Himawari-9 Weekly Special Satellite Operations Schedule, Issued: March 6, 2026 1757 UTC
blue ball Administrative: Enhanced Caution Declared for March 06, 2026 - Issued: March 06, 2026 0926Z
blue ball Product Outage/Anomaly: Alert Message 2026-03-06 08:22:19 :: Sentinel-3A Service Issued March 06, 2026 0843Z
blue ball Administrative: GOES-East MDS Meso-2 Scheduled for March 06, 2026 - Issued: March 06, 2026 0759Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for March 06, 2026 - Issued: March 06, 2026 0754Z
blue ball Administrative: GOES-West MDS Meso-1 Scheduled for March 06, 2026 - Issued: March 06, 2026 0748Z
blue ball Administrative: Correction: GOES-East MDS Meso-1 Scheduled for March 05, 2026 - Issued: March 05, 2026 0925Z
blue ball Product Outage/Anomaly: Alert Message 2026-03-05 04:56:58 :: Sentinel-3B Service Issued March 05, 2026 0912Z
blue ball Alert Message 2026-03-05 05:02:20 :: Sentinel-3A Service- Issued: March 05, 2026 0903Z
blue ball Administrative: GOES-West MDS Meso-1 Scheduled for March 05, 2026 - Issued: March 05, 2026 0856Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for March 04, 2026 - Issued: March 05, 2026 0848Z
blue ball Product Outage/Anomaly: Update #1: Metop-B Antarctic Data Acquisition - Issued March 04, 2026 2215Z
blue ball Administrative Updated #2 to Suomi National Polar-orbiting Partnership (S-NPP) Testing started February 25, 2026 - Issued March 04, 2026 2144Z
blue ball Product Outage/Anomaly: Metop-B Antarctic Data Acquisition - Issued March 04, 2026 2140Z
blue ball Administrative: Planned Maintenance Impacting ESPC Legacy Production Systems on March 05, 2026 - Issued: March 04, 2026 2015Z
blue ball Administrative: Update #1: NCCF Product Upgrade 1.26-2.2 on March 11, 2026 - Issued: March 04, 2026 1700 UTC
blue ball Product Outage/Anomaly: Alert Message 2026-03-04 10:25:54 :: Sentinel-3A Service - Issued: March 04, 2026 1049Z
blue ball Administrative: GOES-East MDS Meso-2 Scheduled for March 04, 2026 - Issued: March 04, 2026 0930Z
blue ball Administrative: GOES-18 SEISS MPS-LO Electron and Ion Microchannel Plate (MCP) HV Bias Calibration (impacts SEISS) Scheduled for March 10, 2026 - Issued: March 03, 2026 2030Z
blue ball Administrative: GOES-East MDS Meso-2 Scheduled for March 03, 2026 - Issued: March 03, 2026 1943Z
blue ball Product Outage/Anomaly: Sentinel 3A Service Issued March 03, 2026 1129Z
blue ball Product Anomaly/Outage: GCOM-W1 SMD Data Delay - Issued: March 3, 2026 0407Z
blue ball Administrative: ESPC Network Maintenance Scheduled for March 04, 2026 - Issued: March 02, 2026 1550Z
blue ball Administrative: Jason-3 maneuver scheduled for March 5, 2026 - Issued: March 02, 1510Z
blue ball Product Outage/Anomaly: NPP SMD Data Delay - Issued: March 1, 2026 1805Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for March 01, 2026- Issued: March 01, 2026 1756Z
blue ball Product Outage/Anomaly: Alert Message 2026-02-28 21:02:26 :: GDS-Metop-B - Issued: March 01, 2026 0232Z
blue ball Product Outage/Anomaly: JPSS NOAA-20 SMD Data Delay - February 28, 2026 2238Z
blue ball Product Outage/Anomaly: JPSS NOAA-21 SMD Data Delay Revised Times - February 28, 2026 2204Z
blue ball Correction: Product Outage/Anomaly: JPSS NOAA-20 SMD Data Delay - February 28, 2026 2155Z
blue ball Product Outage/Anomaly: Alert Message 2026-02-28 21:02:26 :: GDS-Metop-B Issued February 28, 2026 2145Z
blue ball Product Outage/Anomaly: JPSS J01 SMD Data Delay - February 28, 2026 2143Z
blue ball Administrative: GOES-East MDS Meso-2 Scheduled for February 28, 2026 - Issued: February 28, 2026 1656Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for February 28, 2026 - Issued: February 28, 2026 1650Z
blue ball Product Outage/Anomaly: Update #2 NOAA 20 SMD Data Delay - Issued: February 28, 2026 0713Z
blue ball Product Outage/Anomaly: Update #1 NOAA 20 SMD Data Delay - Issued: February 28, 2026 0321Z
blue ball Correction: Product Outage/Anomaly: NOAA 20 SMD Data Delay - Issued: February 28, 2026 0137Z
blue ball Product Outage/Anomaly: JPSS J01 SMD Data Delay - Issued: February 28, 2026 0130Z
blue ball Administrative: GOES-18 and GOES-19 ABI Lunar Trending Calibration Scans Scheduled from March 2 through March 5, 2026 - Issued: February 27, 2026 1813Z
blue ball Administrative: GOES-East MDS Meso-2 Scheduled for February 27, 2026 - Issued: February 27, 2026 1542Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for February 27, 2026 - Issued: February 27, 2026 1526Z
blue ball SARSAT Outage/Anomaly Update #1 - Final Update: SARSAT LME Low Earth Orbit (LEO) Outage Issued: FEBRUARY 27, 2026 0428Z
blue ball SARSAT Outage/Anomaly: Update #1 USMCC System Outage Issued: February 26, 2026 1909Z
blue ball Administrative: GOES-East MDS Meso-2 Scheduled for February 26, 2026 - Issued: February 26, 2026 1852Z
blue ball Administrative: GOES-West MDS Meso-1 Scheduled for February 26, 2026 - Issued: February 26, 2026 1828Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for February 26, 2026 - Issued: February 26, 2026 1728Z
blue ball SARSAT Outage/Anomaly: LME Low Earth Orbit (LEO) Ground Station Offline - Issued: February 26, 2026 1546Z
blue ball Product Anomaly/Outage: (Correction) GOES-18 - ABI L1b Bands 04, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16 products delivered to PDA -Issued: Feb 26, 2026 1225Z
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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.