{"id":37828,"date":"2020-08-02T21:59:47","date_gmt":"2020-08-02T21:59:47","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=37828"},"modified":"2020-08-04T17:54:06","modified_gmt":"2020-08-04T17:54:06","slug":"heavy-rainfall-across-interior-alaska","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/37828","title":{"rendered":"Heavy rainfall across Interior Alaska"},"content":{"rendered":"

\"Topography<\/a>

Topography + GOES-17 “Clean” Infrared Window (10.35 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>An animation of Topography + GOES-17 (GOES-West)<\/em> “Clean” Infrared Window (10.35 \u00b5m<\/strong><\/a>) images (above)<\/strong><\/em> showed a southward-moving band of clouds responsible for producing heavy rainfall across portions of Interior Alaska on 02 August 2020. Cloud-top infrared brightness temperatures were as cold as -58\u00baC (brighter shades of yellow)<\/em>.<\/p>\n

GOES-17 “Red” Visible (0.64 \u00b5m<\/strong><\/a>) images are shown below.<\/p>\n

\"GOES-17<\/a>

GOES-17 “Red” Visible (0.64 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>Blended Total Precipitable Water<\/strong><\/a> (TPW) and Percent of Normal TPW images during the 01-02 August time period (below)<\/strong><\/em> portrayed TPW values as high as 1.5 inches just north of Lake Minchumina — which was >190% of the normal value for this location and time of year.<\/p>\n

\"Blended<\/a>

Blended TPW and Percent of Normal TPW images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>A sequence of VIIRS Infrared Window (11.45 \u00b5m) images from NOAA-20 and Suomi NPP as viewed using RealEarth<\/strong><\/a> (below)<\/strong><\/em> revealed cloud-top infrared brightness in the -60 to -65\u00baC range (darker shades of red)<\/em> within this cloud band.<\/p>\n

\"VIIRS<\/a>

VIIRS Infrared Window (11.45 \u00b5m)<\/em> images from NOAA-20 and Suomi NPP [click to enlarge]<\/p><\/div>\n

<\/p>\n
\n

The deluge is winding down, but this is one for the ages: McKinley River RAWS, about 25 miles SW of Lake Minchumina, has received 4.42" of rain in the past 12 hours. It's very localized, but surely this is the highest 12-hour rain ever in Interior Alaska. #akwx<\/a> @Climatologist49<\/a> pic.twitter.com\/5Xy5yhXS7g<\/a><\/p>\n

— Rick Thoman (@AlaskaWx) August 2, 2020<\/a><\/p><\/blockquote>\n