Weather Alert in Arizona

Recent Locations: Glendale, AZ  

Flash Flood Warning issued July 16 at 3:19PM MST until July 16 at 5:00PM MST by NWS Flagstaff AZ

AREAS AFFECTED: Coconino, AZ

DESCRIPTION: At 319 PM MST /419 PM MDT/, Doppler radar indicated thunderstorms producing heavy rain over the Antelope Creek basin. Between 0.5 and 1.75 inches of rain have fallen. Additional rainfall amounts up to 0.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding in and around the Antelope Creek basin. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of areas in and around the Antelope Creek basin. Some locations that will experience flash flooding include... Page, Canyon X, Cardiac Canyon, Wind Pebble Canyon, Porcupine Canyon, Ramshead Canyon, Upper Antelope Canyon, Mountain Sheep Canyon, Rattlesnake Canyon, Owl Canyon, Lower Antelope Canyon, Trapeze Cove. This includes the following creeks, washes and rivers... Kaibito Creek, Sand Wash, Antelope Creek, Honey Draw and Peach Wash.

INSTRUCTION: Get out of Antelope Canyon and other area slot canyons immediately! Deadly flash flooding is imminent or occurring!

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Weather Topic: What are Hole Punch Clouds?

Home - Education - Cloud Types - Hole Punch Clouds

Hole Punch Clouds Next Topic: Mammatus Clouds

A hole punch cloud is an unusual occurrence when a disk-shaped hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.

When part of the cloud forms ice crystals, water droplets in the surrounding area of the cloud evaporate. The effect of this process produces a large elliptical gap in the cloud. The hole punch cloud formation is rare, but it is not specific to any geographic area.

Other names which have been used to describe this phenomena include fallstreak hole, skypunch, and cloud hole.

Next Topic: Mammatus Clouds

Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

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