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Wall cloud

A wall cloud (murus or pedestal cloud) is a large, localized, persistent, and often abrupt lowering of cloud that develops beneath the surrounding base of a cumulonimbus cloud and from which tornadoes sometimes form. It is typically beneath the rain-free base (RFB) portion of a thunderstorm, and indicates the area of the strongest updraft within a storm.…

Supercell and tornado significance, Genesis & Structure

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Supercell and tornado significance

Ted Fujita1957 Fargo tornadoSupercellMulticellular thunderstormsStrong
13 related topics

Genesis

EntrainmentInflowConvergesRainDowndraft
12 related topics

Structure

Mesoscale convective vortexPrecipitationShelf cloudsOutflowGust fronts
10 related topics

Other usages of the term

EyewallTropical cyclone
2 related topics

Key facts & relationships

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Abbreviation
Cb mur.
Altitude
500-16,000 m (2,000-52,000 ft)
Appearance
A dark cloud feature that protrudes from the base of a cumulonimbus more popularly known as a wall cloud.
Classification
Family C (Low-level)
Genus
Cumulonimbus (heap, rain)
Precipitation
Very common nearby, but not under : Rain, Snow, Snow pellets or Hail, heavy at times

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Overview

Genesis

Structure

Supercell and tornado significance

Other usages of the term

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Map overview Semantic statistics

Wall cloud

Nodes48
Edges47
Triples88
Avg. degree1.96
Density0.041667
Components1

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Wall cloud

Top relations

related to References · 37
Wall cloud → Anderson-Frey, Atkins, Bibcode, CO, Comments, Dana Tobin, Doswell, Glidden, Illinois, Jimenez, Katona, Klees, Kumjian, Lemon, Leslie, Markowski, Mesocyclone Structure, Mon, MWR-D-14-00125, MWR-D-15-0126
related to Supercell and tornado significance · 14
Wall cloud → El Reno EF3, Fargo, Hallam F4, In, Large, Northern Hemisphere, Often, QLCS, Ted Fujita, The, This, Tornadic, Tornadogenesis, Two
related to Wall cloud vs. shelf cloud · 8
Wall cloud → Also, FFD, Many, QLCS, RFD, Shelf, Wall, When
related to Associated features · 5
Wall cloud → Attached, Cloud, It, Most, Some
related to Structure · 5
Wall cloud → In, Northern Hemisphere, Rotating, This, Wall
related to External links · 4
Wall cloud → AMS, Glossary, Meteorology, Wall
Species · 2
Wall cloud → Calvus, Capillatus
related to Genesis · 2
Wall cloud → As, Wall
Abbreviation · 1
Wall cloud → Cb mur.
Altitude · 1
Wall cloud → 500-16,000 m (2,000-52,000 ft)

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Important terminology

wall cloud clouds tornadoes often storm form supercell tornado thunderstorm inflow base also precipitation may shelf typically rotating feature tornadogenesis

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Wall cloudAbbreviationCb mur.1.00infobox
Wall cloudAltitude500-16,000 m (2,000-52,000 ft)1.00infobox
Wall cloudAppearanceA dark cloud feature that protrudes from the base of a cumulonimbus more popularly known as a wall cloud.1.00infobox
Wall cloudClassificationFamily C (Low-level)1.00infobox
Wall cloudGenusCumulonimbus (heap, rain)1.00infobox
Wall cloudPrecipitationVery common nearby, but not under : Rain, Snow, Snow pellets or Hail, heavy at times1.00infobox
Wall cloudSpeciesCalvus1.00infobox
Wall cloudSpeciesCapillatus1.00infobox
Wall cloudVarietyNone1.00infobox
Wall cloudis aarea of the thunderstorm that is most likely to produce tornadoes0.90text
the QLCS aboveinstance ofbut also occasionally with intense multicellular thunderstorms0.80text
the wall cloud will often be seen to be rotatinginstance ofbut also occasionally with intense multicellular thunderstorms0.80text

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