![\"GOES-16](\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2019\/03\/190303_goes16_infrared_MT_anim.gif\")
<\/a>GOES-16 “Clean” Infrared Window (10.3 \u00b5m)<\/em> images, with observed minimum surface air temperatures [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>GOES-16 (GOES-East)<\/em> “Clean” Infrared Window (10.3 \u00b5m<\/strong><\/a>) images (above)<\/strong><\/em> revealed unseasonably cold surface infrared brightness temperatures in the -30 to -40\u00baC range (dark blue to green color enhancement)<\/em> across much of Montana on the morning of 03 March 2019<\/strong><\/a>. Overnight low temperatures<\/strong><\/a> at a number of first-order reporting sites were colder than -30\u00baF (-34\u00baC) — with the coldest location across the state (and the entire US, including Alaska) dropping to -44\u00baF<\/strong><\/a> (-42\u00baC). This was only 1\u00baF warmer than the all-time record low for Montana during the month of March (record low: -45\u00baF at Glasgow in 1897, and at Fort Logan in 1906). A few daily\/monthly cold temperature records were set in the Great Falls<\/strong><\/a> and Billings<\/strong><\/a> areas.<\/p>\n A sequence of 3 consecutive VIIRS Infrared Window\u00a0 (11.45 \u00b5m) images (from NOAA-20 and Suomi NPP) with a different color enhancement is shown below — the red shades indicate surface infrared brightness temperatures of -40\u00baC and colder.<\/p>\n Sequence of 3 consecutive VIIRS Infrared Window (11.45 \u00b5m)<\/em> images from NOAA-20 and Suomi NPP [click to enlarge]<\/p><\/div>\n ===== 04 March Update =====<\/strong><\/p>\n GOES-16 “Clean” Infrared Window (10.3 \u00b5m)<\/em> images, with observed minimum surface air temperatures [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>On the morning of 04 March<\/strong><\/a>, GOES-16 “Clean” Infrared Window images (above)<\/em><\/strong> showed a more localized pocket of very cold surface infrared brightness temperatures over the southwest part of Montana. The coldest measured surface air temperature was -46\u00b0F<\/strong><\/a> at Elk Park (at an elevation of 6292 feet) —\u00a0 which, if certified, will establish a new all-time March low temperature record for the state of Montana.<\/p>\n A sequence of 3 consecutive VIIRS Infrared Window images from NOAA-20 and Suomi NPP (below)<\/strong><\/em> revealed surface infrared brightness temperatures as cold as -46\u00baC or -51\u00baF within the red-enhanced areas.<\/p>\n<\/a><\/a>