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Satellite Alert Messages








Operations

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:   Jul 31, 2026 20:04 UTC



Administrative: GOES West MDS Meso-2 Scheduled for July 31, 2026 - Issued: July 31, 2026 1954Z


Administrative: S-NPP/OMPS special DIAG SCIENCE measurements scheduled for August 13, 2026 - Issued: July 31, 2026 1444Z


Product Outage/Anomaly: (Update#1) NOAA-20 Data Delay - Issued July 31, 2026 1758Z


Product Outage/Anomaly: Update #9: S-NPP Data Delay - Issued: July 31, 2026 1951Z


Product Outage/Anomaly: NOAA-20 Data Delay - Issued July 31, 2026 1643Z


Administrative: GOES-18 (West) EXIS Readout Noise Calibration (impacts EXIS and SUVI data) scheduled for August 7, 2026 - Issued: July 31, 2026 1444Z


Administrative: Discontinuation of On-Premises GMGSI scheduled for August 31, 2026, Issued: July 31, 2026 1405


Administrative: Update #1 - Upgrade of the Solar tables for Suomi National Polar-orbiting Partnership (S-NPP) Ozone Mapping and Profiler Suite Nadir Profiler Sensor Data Record (OMPS NP SDR) on July 22, 2026, Issued: July 31, 2026 1402 UTC


Product Outage/Anomaly - Metop-C GDS FRAC Data Loss - Issued July 31, 2026 1352Z


Product Outage/Anomaly - MetOP-B GDS FRAC Data Loss - Issued July 31, 2026 1332Z


Product Outage/Anomaly: EUMETSAT: Alert Message for GDS-Metop-B,GDS-Multi-Metop,SAF Services - Issued July 31, 2026 1133Z


Administrative: GOES West MDS Meso-1 Scheduled for July 31, 2026 - Issued: July 31, 2026 1058Z


Product Outage/Anomaly: EUMETSAT: Alert Message 2026-07-31 09:41:43 :: GDS-Metop-B,GDS-Multi-Metop,SAF Service July 31, 2026 0954Z


Administrative: GOES East MDS Meso-2 Scheduled for July 31, 2026 - Issued: July 31, 2026 0933Z


Administrative: Critical Weather Day Declared for August 01, 2026 - Issued: July 31, 2026 0924Z


Product Outage/Anomaly: Update #8: S-NPP Data Delay - Issued: July 30, 2026 1951Z


Administrative: GOES East MDS Meso-1 Scheduled for July 30, 2026 - Issued: July 30, 2026 1847Z


Product Outage/Anomaly: EUMETSAT: Alert Message 2026-07-30 18:03:41 :: Sentinel-6A Service July 30, 2026 1832Z


Administrative: GOES West MDS Meso-2 Scheduled for July 30, 2026 - Issued: July 30, 2026 1442Z


Administrative: (Correction) Administrative: GOES East MDS Meso-2 Scheduled for July 29, 2026 - Issued: July 30, 2026 1227Z


Administrative: GOES East MDS Meso-2 Scheduled for July 29, 2026 - Issued: July 30, 2026 1222Z


Administrative: Update #2: Enhanced Caution Declared for July 28, 2026 - Issued: July 30, 2026 1207Z


Administrative: GOES West MDS Meso-1 Scheduled for July 30, 2026 - Issued: July 30, 2026 1046Z


Product Outage/Anomaly: Update #2: NOAA-21 ACSPO SST and VIIRS Radiance Cluster No Retrievals - Issued: July 29, 2026 1947Z


Administrative: GOES East MDS Meso-1 Scheduled for July 29, 2026 - Issued: July 29, 2026 1750Z


Product Outage/Anomaly: Update #1: Correction NOAA-21 ACSPO SST and VIIRS Radiance Cluster No Retrievals - Issued: July 29, 2026 1615Z


Administrative: GOES East MDS Meso-1 Scheduled for July 29, 2026 - Issued: July 29, 2026 1555Z


Administrative: Update: GOES West MDS Meso-1 Scheduled for July 29, 2026 - Issued: July 29, 2026 1415Z


Administrative: GOES West MDS Meso-2 Scheduled for July 29, 2026 - Issued: July 29, 2026 1410Z


Administrative: GOES West MDS Meso-1 Scheduled for July 29, 2026 - Issued: July 29, 2026 1345Z


Administrative: GOES-18 EXIS Cruciform Scan (impacts EXIS and SUVI data) scheduled for August 4, 2026 - Issued: July 29, 2026 1337Z


Administrative: Correction: GOES West MDS Meso-1 Scheduled for July 29, 2026 - Issued: July 29, 2026 1310Z


Administrative: GOES-18 EXIS Off-point Calibration (impacts EXIS and SUVI data) scheduled for August 4, 2026 - Issued: July 29, 2026 1255Z


Administrative: GOES West MDS Meso-1 Scheduled for July 29, 2026 - Issued: July 29, 2026 1210Z


Administrative: GOES East MDS Meso-2 Scheduled for July 29, 2026 - Issued: July 29, 2026 1035Z


Product Outage/Anomaly: NOAA-21 ACSPO SST and VIIRS Radiance Cluster No Retrievals Issued: July 28, 2026 2120Z


Product Outage/Anomaly: Update #1 NOAA-21 ACSPO SST and VIIRS Radiance Cluster No Retrievals Issued: July 28, 2026 1610Z


SARSAT Outage/Anomaly: Update # 1 - Final Update GU4 LEO Ground Station Offline, Issued: July 28, 2026 1522Z


SARSAT Outage/Anomaly: Update # 1 - Final Update LUT Down Guam 3 and 4 LEO Ground Stations Offline, Issued: July 28, 2026, 1517Z


Administrative: GOES West MDS Meso-1 Scheduled for July 28, 2026 - Issued: July 28, 2026 1515Z


Administrative:Update#1 GOES West MDS Meso-1 Scheduled for July 28, 2026 - Issued: July 28, 2026 1420Z


Administrative: Product Distribution and Access (PDA) Planned RHEL Patching at the NSOF OPS site, beginning July 28, 2026 1400Z - Issued: July 28, 2026 1325Z


Administrative: GOES West MDS Meso-2 Scheduled for July 28, 2026 - Issued: July 28, 2026 1149Z


Administrative: GOES West MDS Meso-1 Scheduled for July 28, 2026 - Issued: July 28, 2026 1143Z


Administrative: Update #3 - Decommissioning of Advanced Microwave Scanning Radiometer (AMSR2) Products and Transition to AMSR3 Products on September 2, 2026, Issued: July 28, 2026 1045 UTC


Product Outage/Anomaly: Correction- Update #1 NOAA-21 Data Delay - Issued: July 28, 2026 0823ZZ


Product Outage/Anomaly: JPSS J02 SMD Data Delay Issued July 28, 2026 0708Z


Product Outage/Anomaly: Update #1 NOAA-21 Data Delay - Issued: July 28, 2026 0807Z


Administrative: GOES East MDS Meso-2 Scheduled for July 27, 2026 - Issued: July 27, 2026 2145Z


Administrative: SOLAR-1 Planned Outage /SWiPS Quarterly In-Flight Calibration scheduled July 28, 2026 - Issued: July 27, 2026 1852Z


Administrative: GOES-18 EXIS FOV Mapping Calibration (impacts EXIS and SUVI data) scheduled for August 3, 2026 - Issued: July 27, 2026 1815Z


Administrative: Update #2 - Decommissioning of Advanced Microwave Scanning Radiometer (AMSR2) Products and Transition to AMSR3 Products on September 2, 2026, Issued: July 27, 2026 1740 UTC


Administrative: GOES-19 ABI Solar Calibration Scan scheduled for August 03, 2026 - Issued: July 27, 2026 1716Z


Administrative: GOES West MDS Meso-2 Scheduled for July 27, 2026 - Issued: July 27, 2026 1629Z


Administrative: GOES West MDS Meso-2 Scheduled for July 27, 2026 - Issued: July 27, 2026 1626Z


Administrative: GOES-18 ABI Solar Calibration Scan scheduled for August 03, 2026 - Issued: July 27, 2026 1613Z


Administrative: GOES East MDS Meso-2 Scheduled for July 27, 2026 - Issued: July 27, 2026 1512Z


Administrative: GOES West MDS Meso-1 Scheduled for July 27, 2026 - Issued: July 27, 2026 1124Z


Administrative: GOES West MDS Meso-1 Scheduled for July 26, 2026 - Issued: July 27, 2026 1120Z


Administrative: GOES West MDS Meso-2 Scheduled for July 27, 2026 - Issued: July 27, 2026 1102Z


Administrative: GOES East MDS Meso-2 Scheduled for July 27, 2026 - Issued: July 27, 2026 0932Z


Product Outage/Anomaly: S-NPP Data Delay Issued-July 27, 2026 0928Z


Product Outage/Anomaly: Update #2 S-NPP Data Delay Issued-July 27, 2026 0438Z


Product Outage/Anomaly: Correction S-NPP Data Delay Issued-July 27, 2026 0327Z


Product Outage/Anomaly: Update #1 NOAA-21 Data Delay - Issued: July 27, 2026 0321Z


Product Outage/Anomaly: Update #1 S-NPP Data Delay Issued-July 27, 2026 0302Z


Product Outage/Anomaly: NOAA-21 Data Delay - Issued: July 27, 2026 0232Z


Product Outage/Anomaly: Correction S-NPP Data Delay Issued-July 27, 2026 0133Z


Product Outage/Anomaly: Final Update: SOLAR-1 in Safe Hold - Issued July 26, 2026 1740Z


Administrative: GOES East MDS Meso-1 Scheduled for July 27, 2026 - Issued: July 26, 2026 1700Z


Administrative: GOES West MDS Meso-1 Scheduled for July 26, 2026 - Issued: July 26, 2026 1654Z


Administrative: GOES West MDS Meso-2 Scheduled for July 26, 2026 - Issued: July 26, 2026 1547Z


Product Outage/Anomaly: Correction - SOLAR-1 in Safe Hold - Issued July 26, 2026 0823Z


Administrative: GOES West MDS Meso-1 Scheduled for July 26, 2026 - Issued: July 26, 2026 0803Z


Product Anomaly/Outage: Update #1: GCOM-W1 SMD Data Delay - Issued: July 26, 2026 0754Z


Product Outage/Anomaly: SOLAR-1 in Safe Hold - Issued July 26, 2026 0707Z


Product Anomaly/Outage: GCOM-W1 SMD Data Delay - Issued: July 26, 2026 0648Z


Administrative: Correction#2: Update #1: Correction#1: GOES East MDS Meso-1 Scheduled for July 22, 2026 - Issued: July 25, 2026 1749Z


Administrative: Update #1: Correction: GOES East MDS Meso-1 Scheduled for July 22, 2026 - Issued: July 25, 2026 1728Z


Administrative: GOES West MDS Meso-2 Scheduled for July 25, 2026 - Issued: July 25, 2026 1521Z


Administrative: GOES West MDS Meso-1 Scheduled for July 25, 2026 - Issued: July 25, 2026 1516Z


Administrative: Cancellation: GOES West MDS Meso-1 Scheduled for July 25, 2026 - Issued: July 25, 2026 1509Z


Administrative: Cancellation: GOES West MDS Meso-2 Scheduled for July 25, 2026 - Issued: July 25, 2026 1507Z


Administrative: GOES East MDS Meso-1 Scheduled for July 26, 2026 - Issued: July 25, 2026 1159Z


Administrative: GOES East MDS Meso-2 Scheduled for July 25, 2026 - Issued: July 25, 2026 1153Z


Administrative: GOES East MDS Meso-2 Scheduled for July 26, 2026 - Issued: July 26, 2026 1140Z


Administrative: GOES West MDS Meso-2 Scheduled for July 25, 2026 - Issued: July 25, 2026 0918Z


Product Outage/Anomaly: EUMETSAT: Alert Message 2026-07-25 02:12:24 :: Sentinel-6A Service-Issued: July 25, 2026 0225Z


Administrative: GOES-18 and GOES-19 ABI Lunar Trending Calibration Scans scheduled from July 31 through August 04, 2026 - Issued: July 24, 2026 1947Z


Administrative: GOES East MDS Meso-2 Scheduled for July 24, 2026 - Issued: July 24, 2026 1816Z


Administrative: Cancellation: GOES East MDS Meso-2 Scheduled for July 24, 2026 - Issued: July 24, 2026 1811Z


Administrative: GOES-19 EXIS Readout Noise Calibration (impacts EXIS and SUVI data) scheduled for July 31, 2026 - Issued: July 24, 2026 1658Z


Administrative: GOES West MDS Meso-1 Scheduled for July 25, 2026 - Issued: July 24, 2026 1644Z


Administrative: GOES West MDS Meso-1 Scheduled for July 24, 2026 - Issued: July 24, 2026 1508Z


Administrative: GOES East MDS Meso-2 Scheduled for July 24, 2026 - Issued: July 24, 2026 1122Z


Administrative: Cancellation: GOES East MDS Meso-2 Scheduled for July 23, 2026 - Issued: July 24, 2026 1121Z


Administrative: Correction: GOES East MDS Meso-1 Scheduled for July 22, 2026 - Issued: July 24, 2026 0906Z


Administrative: GOES East MDS Meso-1 Scheduled for July 22, 2026 - Issued: July 24, 2026 0858Z


Product Outage/Anomaly: Correction: GOES-19 Products not delivered to AWIPS - Issued July 23, 2026 2200Z




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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.


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