Hydrology

Fall 2019 through Winter 2020 Heavy Precipitation Events

By Sheldon Kusselson ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2020Jan1503Advect_LPW_ALT_anim.gif ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2020Jan1215Advect_LPW_ALT_anim.gif ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2020Jan0309Advect_LPW_ALT_anim.gif ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2020Feb1203Advect_LPW_ALT_anim.gif ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2020Feb2103Advect_LPW_ALT_anim.gif ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2019Oct1518Advect_LPW_ALT_anim.gif ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2019Oct1615Advect_LPW_ALT_anim.gif ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2019Oct3015Advect_LPW_ALT_anim.gif ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2019Oct3115Advect_LPW_ALT_anim.gif ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2019Dec2303Advect_LPW_ALT_anim.gif ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2019Dec1715Advect_LPW_ALT_anim.gif ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2020Mar0315Advect_LPW_ALT_anim.gif ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2020Mar0415Advect_LPW_ALT_anim.gif ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2020Mar0515Advect_LPW_ALT_anim.gif ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2020Mar0515Advect_LPW_ALT_anim.gif ftp://ftp.cira.colostate.edu/ftp/Forsythe/LPW/Anim_GIF/2020Mar0615Advect_LPW_ALT_anim.gif

Heavy Rain and Flooding Issues

Advected Layer Precipitable Water (ALPW) product for 5 February 2020 Severe and Flood event

CIRA ALPW Comparison for Two Northeast US Heavy Precipitation Events

By Sheldon Kusselson ALPW loop of 2019 event: ALPW loop of 2017 event:

Coastal Effects Cyclogenesis Heavy Rain and Flooding Issues Hydrology POES Satellites

Subtropical storm Melissa

By Sheldon Kusselson and Dan Bikos Subtropical storm Melissa exists off the Eastern coastline of the U.S. on 10-11 October 2019, as GOES-16 visible imagery on 11 October shows: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/11Oct19/vis&loop_speed_ms=60 note the lack of deep convection over the center of the circulation, however convection does exist north and northeast of the center at this time. Continue Reading

Heavy Rain and Flooding Issues Tropical Cyclones

VIIRS flood observations along the Arkansas River

Heavy rain fell in Kansas, Oklahoma and Arkansas the past few weeks, causing major flooding along portions of the Arkansas River. In the RealEarth image below (i.e. 1930Z on 27 May 2019), major flooding is indicated in orange and red colors and extends from Fort Gibson in northeast Oklahoma to New Blaine in northwest Arkansas. Continue Reading

Heavy Rain and Flooding Issues Hydrology POES Satellites

ALPW product for 26 April 2019 heavy rain / severe thunderstorm event

Nebraska flooding

The past two weeks Nebraska has been inundated with heavy precipitation, in the forms of rain and snow. Nebraska was significantly affected by the ‘record-breaking’ mid-latitude cyclone that past through the area from 13-15 March 2019.  Refer to the GOES-16 10.3um infrared satellite imagery below, seen from 5Z, 13 March 2019 to 22Z, 14 March Continue Reading

GOES Heavy Rain and Flooding Issues Hydrology POES Satellites

14 February 2019 California Atmospheric River event

Advected Layer Precipitable Water loop: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/14feb19/alpw&loop_speed_ms=400 Blended Total Precipitable Water loop: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/14feb19/blended_tpw&loop_speed_ms=100 Percent of Normal TPW loop: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/14feb19/blended_percent&loop_speed_ms=100

Heavy Rain and Flooding Issues Hydrology Satellites

Winter Storm Harper

A large low pressure system, slammed into the western United States (US), bringing heavy rain and snow, high winds, along with producing blizzards (for the Sierra Nevadas) and localized flooding for low-lying areas. The areal extent of the system is seen via ‘Preliminary, Non-Operational‘ GOES-17 Day Cloud Phase Distinction RGB (below) at 1925 UTC, 16 Continue Reading

GOES R Heavy Rain and Flooding Issues Hydrology POES Satellites

Advected Layer Precipitable Water (ALPW) comparison for events in December 2018 – January 2019