VISIT: Meteorological Interpretation Blog

Fires have engulfed Southern California over the past few weeks, where another fire (i.e., the Hughes Fire) erupted just northwest of the Los Angeles metropolitan area. At the time of this blog entry (~22Z, 23 January 2025), the fire had scorched 10,000+ acres in Los Angeles and Ventura counties and was 24% contained. Dangerous fire Continue Reading

A historic winter storm impacted the southern United States, blanketing several states with multiple inches of snow, spanning from southeast Texas (i.e., Houston metro area) to Florida and the Carolinas. Numerous flights were delayed or cancelled at the Louis Armstrong New Orleans International Airport from 21-22 January 2025, where the airport accumulated 8 inches from Continue Reading

On the morning of 6 November 2024, the Mountain Fire erupted, and fueled by strong winds, the fire spread southwestward towards cities located along the California coastline. The GOES-18 GeoColor product (see below) observed the fire and the corresponding smoke plumes from ~18-21Z, 6 November 2024. The narrow, long, smoke plumes advected westward offshore and Continue Reading

The Park Fire in California initiated two weeks ago and portions of the fire perimeter are still ablaze at the time of this blog entry. As of 7 August 2024, the Park Fire has burned 420,000 plus acres and is only 34% percent contained (per InciWeb). The JPSS SNPP VIIRS Day Fire RGB and the Continue Reading

Over the past few weeks, fires have erupted and spewed high concentrations of smoke over western Canada and the United States. To exacerbate the situation, more fires initiated recently in the western U.S. National Weather Service (NWS) Weather Forecast Offices (WFO) highlighted the High-Resolution Rapid Refresh (HRRR) – Smoke products on social media to warn Continue Reading

Another summer and another round of wildfires and smoke that inundate the Canadian provinces and territories. From 19-21Z, 17 July 2024, VIIRS GeoColor observed the smoke and fires extending from British Columbia to Hudson Bay. A daytime animation of VIIRS overpasses from SNPP, NOAA-20, and NOAA-21 can be seen below.   At ~09Z 18 July Continue Reading

By Sheldon Kusselson

A powerful geomagnetic storm transpired over the Lower-48 during the weekend of 11-13 May 2024. The sun produced coronal mass injections that impacted the Earth, creating auroras (a.k.a., northern lights) that were seen across the globe. Within CONUS, the auroras were visible as far south as Florida, Texas, and Alabama: locations where the northern lights are typically Continue Reading

During March 2024, NOAA-21 was declared the primary satellite of the Joint Polar Satellite System (JPSS). In early April 2024, NOAA-20 (newly designated as the secondary satellite) completed its orbital shift placing NOAA-20 a half-orbit (~50 minutes) a part from NOAA-21. The tertiary satellite, SNPP, is now positioned a quarter-orbit between NOAA-21 and NOAA-20. A Continue Reading