Weather Alert in Arizona
Flash Flood Warning issued September 4 at 1:24PM MST until September 4 at 4:30PM MST by NWS Flagstaff AZ
AREAS AFFECTED: Coconino, AZ
DESCRIPTION: FFWFGZ The National Weather Service in Flagstaff has issued a * Flash Flood Warning for...Nankoweap Creek...in Coconino County in north central Arizona...this includes the Colorado River between river miles 49 and 53. * Until 430 PM MST /530 PM MDT/. * At 124 PM MST /224 PM MDT/, Doppler radar indicated thunderstorms producing heavy rain over Nankoweap Creek. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding in and around Nankoweap Creek. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of areas in and around Nankoweap Creek. * Some locations that will experience flash flooding include... Grand Canyon National Park and Saddle Mountain Wilderness. This includes the Colorado River between river miles 49 and 53. This includes the following recreation areas and campgrounds... Dinosaur Camp Site, Little Nankoweap Camp Site and Upper Nankoweap Camp Site. This includes the following creeks, washes and rivers... Nankoweap Creek, Saddle Canyon, Colorado River, Nankoweap Canyon and Little Nankoweap Creek.
INSTRUCTION: This is a life threatening situation. Heavy rainfall will cause extensive and severe flash flooding of creeks...streams...and ditches in Nankoweap Creek. Severe debris flows can also be anticipated across roads. Roads and driveways may be washed away in places. If you encounter flood waters...climb to safety.
Want more detail? Get the Complete 7 Day and Night Detailed Forecast!
Current U.S. National Radar--Current
The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).
National Weather Forecast--Current
The Current National Weather Forecast and National Weather Map are shown below.
National Weather Forecast for Tomorrow
Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.
North America Water Vapor (Moisture)
This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.
Weather Topic: What is Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
Current conditions powered by WeatherAPI.com
