Severe Weather

<p>General questions and answers concerning Severe Thunderstorms.</p>

Flooding in the UAE and Oman

During mid-April 2024, unprecedented flooding occurred in the Middle East, specifically in the countries of the United Arab Emirates (UAE) and Oman. Over the course of a few days, a series of storms produced significant precipitation totals that pummeled the region, which led to extensive flooding that shut down schools, grounded or diverted flights, and Continue Reading

Convection Dust GOES Heavy Rain and Flooding Issues Hydrology POES Satellites Severe Weather VIIRS

March 2, 2023 Severe Weather Event – summary of satellite moisture products

https://www.wunderground.com/article/news/news/2023-03-02-tornado-severe-weather-dallas-texas-louisiana-arkansas-oklahoma Product Links: ALPW ALPW Percentiles ALPW vapor transport

GOES R POES Severe Weather

30 November 2020 Severe Weather Event in the Mid-Atlantic

By Dan Bikos, Sheldon Kusselson and Jorel Torres On 30 November 2020, a trough affected the Mid-Atlantic region and was responsible for the following severe weather reports: https://www.spc.noaa.gov/climo/reports/201130_rpts.html In this blog post, we’ll examine aspects of the synoptic scale setup for this event. The following GOES-16 low-level water vapor (7.3 micron) animation: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/30nov20/band10/&loop_speed_ms=200 depicts an Continue Reading

Severe Weather

ALPW depiction of mid-level dry air associated with Tropical Storm Isaias

By Sheldon Kusselson Loop of ALPW 700-500 mb layer over a long time period

Severe Weather Tornadoes Tropical Cyclones

Moisture products for the tornadic storm of 4 July 2020 in Saskatchewan

On 4 July 2020 a thunderstorm developed in southern Saskatchewan that led to numerous tornadoes (video, picture, pictures). Let’s analyze various satellite derived moisture products in the time period leading up to the tornadic storm.  The following loop 4-panel loop: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/4july20/4panel_moisture&loop_speed_ms=80 Upper-left: GOES-16 visible (0.64 micron) imagery. Upper-right: Advected Layer Precipitable Water (ALPW) product in Continue Reading

Convection Severe Weather Tornadoes

GOES/JPSS Observations of Oklahoma Severe Storms and Elevated Mixed Layer

By Jorel Torres, Dan Bikos and Ed Szoke A line of severe storms moved through the southern plains on 4 May 2020, producing numerous hail and wind reports across the region (accessed via SPC). The GOES-16 Day Cloud Phase Distinction RGB is shown below, overlaid onto the GOES-16 CAPE product from 17Z, 4 May 2020 Continue Reading

GOES R POES Satellites Severe Weather

Nighttime view of inflow feeder clouds from GOES Nighttime Microphysics RGB

During the overnight hours of March 18-19, 2020, there were numerous reports of severe weather (including tornadoes) in north Texas: https://www.spc.noaa.gov/climo/reports/200318_rpts.html This blog entry will focus on the storm repsonsible for the tornado reports between 0615 – 0650 UTC near Abilene, TX. The storm of interest can be viewed in this 4-panel display zoomed in Continue Reading

Convection Severe Weather

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

10 January 2020 – Southern Plains Severe Weather event with Elevated Mixed Layer (EML)

https://rammb-slider.cira.colostate.edu/?sat=goes-16&z=0&im=12&ts=1&st=20200110090117&et=20200110160617&speed=130&motion=loop&map=1&lat=0&opacity%5B0%5D=1&hidden%5B0%5D=0&pause=0&slider=-1&hide_controls=0&mouse_draw=0&follow_feature=0&follow_hide=0&s=rammb-slider&sec=conus&p%5B0%5D=band_10&x=5000&y=5000 Alternately, also available here: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/10jan20/band10&loop_speed_ms=60   ALPW Loop: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/10jan20/alpw&loop_speed_ms=120  

Severe Weather

Elevated Mixed Layer event on 16 December 2019

On 16 December 2019, SPC issued an enhanced risk of severe thunderstorms for portions of Louisiana and Mississippi: One of the favorable ingredients for this severe weather setup was the presence of an Elevated Mixed Layer (EML) which is depicted in the 12Z Jackson, MS sounding: The EML is bounded between the capping inversion around Continue Reading

Convection Severe Weather