Spotter's Field Guide - The Supercell, Pt. 2 - National Weather Service
WEBLocation of rear flank downdraft (RFD) Unlike the rain-cooled forward flank downdraft, the RFD is, more times than not, dry and warm. As the air descends it warms by compression and clears out clouds forming a "clear slot".
Rear flank downdraft - Wikipedia
WEBLarge hail within the rear flank downdraft often shows up brightly as a hook on weather radar images, producing the characteristic hook echo, which often indicates the presence of a tornado. [1]
Spotter's Field Guide - The Supercell & You - National Weather Service
WEBThe weather radar image only tells you WHAT HAS happened and NOT WHAT IS happening. The image you receive is often several minutes old. Help us by telling WHAT IS happening, visually, from your vantage point. However, looping radar images are very good for helping discern a storm's motion.
WEBForward Flank Downdraft (FFD): The main region of downdraft in the forward, or leading, part of a supercell, where most of the heavy precipitation (rain, hail) is located. Gate-to-Gate (GTG): A term used to describe when the maximum inbound and maximum outbound radar velocity is immediately adjacent to each other (side by side).
What Is a Forward-Flank Downdraft (FFD)? - ablison.com
WEBSep 9, 2024 · Doppler radar can detect the movement and velocity of the FFD, while satellite imagery can provide a visual representation of the storm system. Surface observations can help meteorologists anticipate the effects of the FFD on local weather conditions, including temperature, humidity, and wind speed.
Can you spot a supercell? 10 visual signs a ... - Severe Weather …
WEBAug 22, 2019 · The Rear Flank Downdraft or RFD is a region of descending air located on the rear trailing part of a supercell thunderstorm. The RFD can form due to evaporation cooling and consequent negative buoyancy (i.e. thermodynamically) or due to the storm’s updraft blocking the mid-level airflow (i.e. dynamically).
Supercell - Wikipedia
WEBIn North America, supercells usually show up on Doppler weather radar as starting at a point or hook shape on the southwestern side, fanning out to the northeast. The heaviest precipitation is usually on the southwest side, ending abruptly short of the rain-free updraft base or main updraft (not visible to radar).
NWS Radar
WEBThe NWS Radar site displays the radar on a map along with forecast and alerts. The radar products are also available as OGC compliant services to use in your application. Enhanced Radar Standard Radar (Low-Bandwidth)
Prepare for a Supercell - Weather Underground
WEBHP supercells usually have the updraft on the forward flank (front) of the storm, and the precip surrounds the updraft, from the FFD to the rear flank downdraft (RFD). The wall cloud and...
Riverview, FL Radar Map - The Weather Channel | Weather.com
WEBInteractive weather map allows you to pan and zoom to get unmatched weather details in your local neighborhood or half a world away from The Weather Channel and Weather.com.