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:   Jan 23, 2026 21:34 UTC

blue ball Administrative: GOES-West MDS Meso-2 Scheduled for January 24, 2026 - Issued: January 23, 2026 2118Z
blue ball Product Outage/Anomaly: Update #2:NCCF WSF-M Data Delay- Issued: January 23, 2026 2101Z
blue ball Himawari-9 Weekly Special Satellite Operations Schedule, Issued: January 23, 2026 2043 UTC
blue ball Administrative: Update #1: NCCF Product Upgrade 1.26-1.2 on February 18, 2026 - Issued: January 23, 2026 1900 UTC
blue ball Product Outage/Anomaly: Alert Message 2026-01-23 16:31:27 :: Sentinel-6A Service-Issued: January 23, 2026 1645Z
blue ball =?UTF-8?Q?Product_Outage=2FAnomaly=3A_Alert_Message_2026=2D01=2D23_15=3A?= =?UTF-8?Q?41=3A12_=3A=3A_0=C2=B0_MTG_Service=2DIssued=3A_January_23=2C_2026_1552Z?=
blue ball Administrative: GOES-19 EXIS Readout Noise Calibration (impacts EXIS and SUVI data) scheduled for January 30, 2026 - Issued: January 23, 2026 1316Z
blue ball Product Outage/Anomaly: Update: NPP SMD Data Delay- Issued January 22, 2026 2225Z
blue ball Product Outage/Anomaly: NOAA 21 Missing Data Delay - Issued January 22, 2026 2222Z
blue ball Product Outage/Anomaly: Correction: NOAA-21 SMD Data Delay - Issued January 22, 2026 2206Z
blue ball Product Outage/Anomaly: NOAA 21 Star Tracker Photo Mode Scheduled for January 22, 2026 - Issued: January 22, 2026 2155Z
blue ball Product Outage/Anomaly: NOAA-21 SMD Data Delay - Issued January 22, 2026 2139Z
blue ball Administrative: Update #1: Product Distribution and Access (PDA) Planned ESPC OPS Network Maintenance activities at the NSOF OPS site, beginning January 22nd 1500Z - Issued January 22nd, 2026 1905Z
blue ball Administrative:Correction:NOAA-20 VIIRS Non-Roll Lunar Calibration Scheduled for January 28, 2026 - Issued: January 22, 2026 1744Z
blue ball Administrative: S-NPP VIIRS Non-Roll Lunar Calibration Scheduled for January 29, 2026- Issued: January 22, 2026 1727Z
blue ball Administrative:NOAA-21 VIIRS Non-Roll Lunar Calibration Scheduled for January 28, 2026 - Issued: January 22, 2026 1724Z
blue ball Correction:Administrative:NOAA-21 VIIRS Non-Roll Lunar Calibration Scheduled for January 28, 2026 - Issued: January 22, 2026 1720Z
blue ball Product Outage/Anomaly:NOAA-21 VIIRS Non-Roll Lunar Calibration Scheduled for January 28, 2026 - Issued: January 22, 2026 1715Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for January 23, 2026 - Issued: January 22, 2026 1505Z
blue ball Administrative: GOES-19 EXIS Cruciform Scan (impacts EXIS, SUVI, and CCOR data) scheduled for January 29, 2026 - Issued: January 22, 2026 1422Z
blue ball Correction: Administrative: GOES-19 EXIS Off-point Calibration (impacts EXIS, SUVI, and CCOR data) scheduled for January 28, 2026 - Issued: January 22, 2026 1411Z
blue ball Product Outage/Anomaly:Alert Message 2026-01-22 13:28:35 :: GDS-Metop-B- Issued: January 22, 2026 1351Z
blue ball Administrative: GOES-19 EXIS Off-point Calibration (impacts EXIS, SUVI, and CCOR data) scheduled for January 28, 2026 - Issued: January 22, 2026 1341Z
blue ball Administrative: Product Distribution and Access (PDA) Planned ESPC OPS Network Maintenance activities at the NSOF OPS site, beginning January 22nd, 1500Z - Issued: January 22, 2026 1340Z
blue ball Product Outage/Anomaly:Update #1: Alaska 4 LEO Ground Station Offline - Issued: January 22, 2026 1333Z
blue ball Product Outage/Anomaly: Sentinel-3B Service - Issued: January 22, 2026 1102Z
blue ball Product Outage/Anomaly: Sentinel-3A Service - Issued: January 22, 2026 1058Z
blue ball Correction: Product Outage/Anomaly: Alert Message 2026-01-22 10:04:06 :: Sentinel-3B Service - Issued: January 22, 2026 1023Z
blue ball Product Outage/Anomaly: Alert Message 2026-01-22 10:04:43 :: Sentinel-3A Service - Issued: January 22, 2026 1020Z
blue ball Product Outage/Anomaly: Alert Message 2026-01-22 10:04:06 :: Sentinel-3B Service - Issued: January 22, 2026 1017Z
blue ball Product Outage/Anomaly: Alert Message 2026-01-22 07:37:44 :: Sentinel-3B Service - Issued: January 22, 2026 0800Z
blue ball Correction: Product Outage/Anomaly: Alert Message 2026-01-22 07:38:29 :: Sentinel-3A Service - Issued: January 22, 2026 0757Z
blue ball Product Outage/Anomaly: Alert Message 2026-01-22 07:38:29 :: Sentinel-3A Service - Issued: January 22, 2026 0747Z
blue ball Product Outage/Anomaly: (Update #1) NOAA-21 Data Delay - Issued January 21, 2026 2215Z
blue ball Product Outage/Anomaly: NOAA-21 Data Delay - Issued January 21, 2026 2146Z
blue ball Administrative: Critical Weather Day Declared for January 23, 2026 - Issued: January 21, 2026 2045Z
blue ball Administrative: Legacy Product Retirement AVHRR and VIIRS Coast Watch SST Swaths, Issued: January 21, 2026 1921 UTC
blue ball Administrative: Update #4: Critical Weather Day Extended - Issued: January 21, 2026 1805Z
blue ball Product Outage/Anomaly: NCCF Missing GPM Data Due To GPM NRT Subsytem Maintenance Issued: January 21, 2026 1707Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for January 21, 2026 - Issued: January 21, 2026 1445Z
blue ball Product Outage/Anomaly: Alert Message 2026-01-21 13:46:30 :: Sentinel-3A Service - Issued: January 21, 2026 1352Z
blue ball Product Outage/Anomaly: Alert Message 2026-01-21 13:23:54 :: Sentinel-3B Service - Issued: January 21, 2026 1330Z
blue ball Product Outage/Anomaly: Alert Message 2026-01-21 11:19:43 :: 45.5deg E IODC MSG,9.5deg E RSS MSG - Issued: January 21, 2026 1130Z
blue ball Product Outage/Anomaly: Alert Message 2026-01-21 08:30:30 :: 45.5deg E IODC MSG - Issued: January 21, 2026 0958Z
blue ball Administrative: Update #3: Critical Weather Day Extended - Issued: January 21, 2026 0537Z
blue ball Product Outage/Anomaly: Update #1: Alert Message 2026-01-20 23:07:29 :: Sentinel-3B Service - Issued: January 20, 2026 2331Z
blue ball Administrative: Update #2: Critical Weather Day Extended - Issued: January 20, 2026 2313Z
blue ball Product Outage/Anomaly: GCOM-W1 Data Delay. - Issued: January 20, 2026 2209Z
blue ball Administrative: GOES-19 EXIS FOV Mapping Calibration (impacts EXIS, SUVI, and CCOR data) scheduled for January 27, 2026 - Issued: January 20, 2026 2155Z
blue ball Product Outage/Anomaly: Alert Message 2026-01-20 21:35:37 :: Sentinel-3B Service: -Issued January 20, 2026 2150Z
blue ball Product Anomaly/Outage:Update#1 GOES-18 - ABI L1b Band 09, All Products products delivered to AWIPS, GRB, PDA -Issued: Jan 20, 2026 2003Z
blue ball Product Outage/Anomaly: GCOM-W1 Data Delay. - Issued: January 20, 2026 2000Z
blue ball Administrative: GOES-18 Hydrazine Bipropellant Thruster (HBT) Flush Scheduled for January 30, 2026 0310 UTC - Issued: January 20, 2026 1850 UTC
blue ball Administrative: Update #1: Critical Weather Day Extended - Issued: January 20, 2026 0913Z
blue ball Product Outage/Anomaly: Update #: Alert Message 2026-01-20 04:19:20 :: 45.5deg E IODC MSG,9.5deg E RSS MSG - Issued: January 20, 2026 0907Z
blue ball Product Outage/Anomaly: Alert Message 2026-01-20 04:19:20 :: 45.5deg E IODC MSG,9.5deg E RSS MSG - Issued: January 20, 2026 0427Z
blue ball Product Outage/Anomaly: Alert Message 2026-01-20 01:12:38 :: 45.5deg E IODC MSG - Issued: January 20, 2026 0218Z
blue ball Product Outage/Anomaly: Update #1: NOAA-21 Data Delay - Issued: January 20, 2026 0214Z
blue ball Product Outage/Anomaly: Alert Message 2026-01-20 01:12:38 :: 45.5deg E IODC MSG - Issued: January 20, 2026 0124Z
blue ball Product Outage/Anomaly: NOAA-21 Data Delay - Issued: January 20, 2026 0103Z
blue ball Product Anomaly/Outage: NCCF WSF-M Data Delay - Issued: January 19, 2026 1853Z
blue ball Administrative: Critical Weather Day Updated - Issued: January 19, 2026 1337Z
blue ball Administrative: Correction: Critical Weather Day Declared for January 19, 2026 - Issued: January 19, 2026 1136Z
blue ball Administrative: GOES-East MDS Meso-2 Scheduled for January 18, 2026 - Issued: January 18, 2026 1720Z
blue ball Correction: Product Anomaly/Outage: GCOM-W1 SMD Data Delay - Issued: January 18, 2026 0739Z
blue ball Product Anomaly/Outage: Update #1: GCOM-W1 SMD Data Delay - Issued: January 18, 2026 0227Z
blue ball Product Anomaly/Outage: GCOM-W1 SMD Data Delay - Issued: January 18, 2026 0214Z
blue ball Product Anomaly/Outage: GCOM-W1 SMD Data Delay - Issued: January 18, 2026 0205Z
blue ball Product Anomaly/Outage: Striping on GOES-19 - ABI L1b Band 05 products delivered to AWIPS, GRB, PDA -Issued: Jan 18, 2026 0028Z
blue ball Administrative: Update #1 GOES-East MDS Meso-2 Scheduled for January 17, 2026 - Issued: January 17, 2026 1838Z
blue ball Administrative: Correction GOES-East MDS Meso-2 Scheduled for January 17, 2026 - Issued: January 17, 2026 1823Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for January 17, 2026 - Issued: January 17, 2026 1812Z
blue ball Administrative: Correction to Update #1 - GOES-East MDS Meso-2 Scheduled for January 16, 2026 - Issued: January 16, 2026 2050Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for January 16, 2026 - Issued: January 16, 2026 1701Z
blue ball Administrative: Update #1 - GOES-East MDS Meso-2 Scheduled for January 16, 2026 - Issued: January 16, 2026 1646Z
blue ball Product Outage/Anomaly: EUMETSAT: Sentinel-6A Service -Issued January 16, 2026 1624Z
blue ball Product Outage/Anomaly: Correction: EUMETSAT: Update #1: Sentinel-3A Service, Sentinel-3B Service -Issued January 16, 2026 1602Z
blue ball Administrative: Update #4 - NOAA-20 Ozone Mapping and Profiler Suite (OMPS) Nadir Mapper TC SDR and GEO (SOMTC and GOTCO) ADR-11193 postponed to no earlier than March 5, 2026 - Issued January 15, 2026 1940 UTC
blue ball Product Outage/Anomaly: EUMETSAT: Update #1: Sentinel-3A Service, Sentinel-3B Service -Issued January 15, 2026 1915Z
blue ball Product Outage/Anomaly: EUMETSAT: Sentinel-3A Service, Sentinel-3B Service -Issued January 15, 2026 1713Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for January 15, 2026 - Issued: January 15, 2026 1447Z
blue ball Administrative: GOES-East MDS Meso-2 Scheduled for January 16, 2026 - Issued: January 15, 2026 1440Z
blue ball Administrative: GOES-East MDS Meso-2 Scheduled for January 16, 2026 - Issued: January 15, 2026 1411Z
blue ball Administrative: GOES-West MDS Meso-2 Scheduled for January 15, 2026 - Issued January 15, 2026 0145Z
blue ball Product Anomaly/Outage: GOES-18 - ABI L1b Band 09, All Products products delivered to AWIPS, GRB, PDA -Issued: Jan 15, 2026 0020Z
blue ball Correction#2: Administrative: GOES-East MDS Meso-1 Scheduled for January 14, 2026 - Issued: January 14, 2026 2245Z
blue ball Administrative: GOES-West MDS Meso-1 Scheduled for January 15, 2026 - Issued: January 14, 2026 2236Z
blue ball Correction: Administrative: GOES-East MDS Meso-1 Scheduled for January 14, 2026 - Issued: January 14, 2026 2226Z
blue ball Administrative: GOES-West MDS Meso-2 Scheduled for January 23, 2026 - Issued: January 22, 2026 1942Z
blue ball Product Outage/Anomaly: Alert Message 2026-01-14 18:12:41 :: Sentinel-6A Service - Issued: January 14, 2026 1819Z
blue ball Correction: Product Outage/Anomaly:Update #1 - Final Update: Hawaii Medium Earth Orbit (MEO) Outage - Issued: JANUARY 14, 2026 1807Z
blue ball SARSAT Outage/Anomaly Update #1 - Final Update: Hawaii Medium Earth Orbit (MEO) Outage Issued: JANUARY 14, 2026 1803Z
blue ball Administrative: GOES-East MDS Meso-1 Scheduled for January 14, 2026 - Issued: January 14, 2026 1415Z
blue ball Administrative: NCCF Product Upgrade 1.26-1.2 on February 11, 2026 - Issued: January 14, 2026 1331 UTC
blue ball Product Outage/Anomaly: Alert Message 2026-01-14 10:37:09 :: Jason-3 Service - Issued January 14, 2026 1045Z
blue ball Subject: Administrative: MetOp-B/1, & MetOp-C/3 AVHRR, Monthly Visible Calibration Update, 13 January 2026 - Issued: 13 January 2026 2046Z
blue ball Administrative: ( Update #1) Planned Product Distribution and Access (PDA) Implementation of New GOES-R Certificate at the NSOF OPS site, beginning January 13th, 2026 at 1530Z - Issued: January 13th, 2026 1720Z
blue ball Administrative: (Update#1)GOES-East MDS Meso-1 Scheduled for January 13, 2026 - Issued: January 13, 2026 1629Z
blue ball Administrative: Planned Product Distribution and Access (PDA) Implementation of New GOES-R Certificate at the NSOF OPS site, beginning January 13th, 2026 at 1530Z - Issued: January 13th, 2026 1520Z
blue ball Administrative: GOES-19 ABI Solar Calibration Scan scheduled for
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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.