National Weather Service United States Department of Commerce

Areas of Severe Thunderstorms, Excessive Rainfall, and Extreme Heat Wednesday

In the Upper Midwest, heavy to excessive rain may bring flash and urban flooding through Wednesday. Scattered severe thunderstorms capable of large hail and damaging wind gusts are possible from the central High Plains into the Upper Midwest Wednesday. Extreme heat is ongoing over the Desert Southwest through Thursday. Read More >

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Image Enhancement Information

 

Abbreviation Label Enhancement Descriptions:
AVN AVN Aviation color enhancement
BD Dvorak Dvorak enhancement - used for Tropical Classifications with the Dvorak Technique
FT Funktop Funktop enhancement - developed by Ted Funk to highlight intense areas of precipitation
JSL JSL JSL2 enhancement - developed by Jim Lynch to bring out low level and high level clouds in tropical cyclones
IR2 Shortwave (IR2) Channel 2 Shortwave Infrared imagery - Shortwave, sometimes considered "night visible"
IR2F Fire (IR2) Infrared Channel 2 with the standard fire enhancement to show hot spot activity
IR2H Fire Hot Infrared Channel 2 with enhancemnet for the hot summer season
IR2W Fire Winter Infrared Channel 2 with enhancement for the cool winter season
IR4 None Unenhanced Channel 4 Infrared Imagery
RB Rainbow Rainbow enhancement curve - Colorful enhancement for a vivid data image.
RBTOP Rainbow New variation on the Rainbow enhancement curve - Colorful enhancement
RGB RGB Combination of Visible and Infrared using a three channel technique to form a Red/Green/Blue false color image.
VIS Visible Unenhanced Visible imagery that usually transitions to Infrared Channel 2 overnight
WV Water Vapor Infrared Channel 3