Black Mesa Area Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Flash Flood Warning
Issued: 1:03 PM MDT Jul. 24, 2017 – National Weather Service

The National Weather Service in Flagstaff has issued a

* Flash Flood Warning for...
Gila County in east central Arizona...
Coconino County in north central Arizona...

* until 400 PM MST

* at 100 PM MST, National weather Doppler radar indicated heavy rain
had moved across the Highline fire scar, above Ellison creek. Rain
gauges on the Highline fire scar are showing 1.4 inches of rain in
the last hour. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
Ellison creek and the water wheel swimming area.

Precautionary/preparedness actions...

Move to higher ground now. Act quickly to protect your life.

Stay away or be swept away. River banks and culverts can become
unstable and unsafe.

Move away from recently burned areas. Life-threatening flooding of
creeks, roads and normally dry washes is likely. The heavy rains will
likely trigger Rockslides, mudslides and debris flows in steep
terrain, especially in and downstream of areas recently scarred by
fire.


Lat... Lon 3440 11114 3435 11116 3433 11120 3433 11122
      3434 11129 3436 11128 3436 11121 3437 11119
      3440 11118



Flash Flood Watch, Areal Flood Advisory
Issued: 3:32 PM MDT Jul. 24, 2017 – National Weather Service

... Flash Flood Watch remains in effect until midnight MST
tonight...

The Flash Flood Watch continues for

* portions of north central Arizona and northeast Arizona,
including the following areas, Coconino Plateau, Grand Canyon
country, Kaibab Plateau, Little Colorado River valley in
Coconino County, and Marble and Glen canyons, Black Mesa area,
Chinle Valley, Chuska Mountains and Defiance Plateau, northeast
plateaus and mesas Hwy 264 northward, and northeast plateaus and
mesas south of Hwy 264.

* Until midnight MST tonight

* abundant monsoon moisture is expected to produce showers and
thunderstorms through this evening. The stronger storms will be
capable of dropping rainfall amounts of 1 to 2 inches in a
short period of time.

* Areas of particular concern include the Grand Canyon, Havasu
Canyon and Supai, Antelope Canyon and other slot canyons. Low
water crossings in the watch area will also be susceptible to
flooding today.

Precautionary/preparedness actions...

A Flash Flood Watch means that developing conditions may lead to
flash flooding within the watch area. People... especially those
located along area creeks... rivers or other flash flood prone
areas... should continue to monitor later forecasts and be
prepared to take immediate action should flash flood warnings be
issued.



41


255 PM MST Mon Jul 24 2017

The National Weather Service in Flagstaff has issued a

* small stream flood advisory for...
Apache County in northeastern Arizona...
Navajo County in north central Arizona...

* until 600 PM MST

* at 250 PM MST, National Weather Service Doppler radar indicated a
cluster of thunderstorms that were producing heavy rain. These
storms were moving from southeast to northwest across the advisory
area. This will cause small stream and wash flooding in the
advisory area.

* Some locations that will experience flooding include...
Keams Canyon, tselani-Cottonwood, First Mesa, Low Mountain, Toyei,
Salina, Blue Gap chapter house, White Cone, jadito, Whippoorwill
chapter house, Indian Wells, Jeddito, Navajo, Pinon and Polacca.

Precautionary/preparedness actions...

Most flood deaths occur in automobiles. Never drive your vehicle into
areas where water covers the roadway. Flood waters are usually deeper
than they appear. Just one foot of flowing water is powerful enough
to sweep vehicles off the Road. When encountering flooded roads, make
the smart choice: turn around, don't drown.


Lat... Lon 3593 10981 3593 10990 3536 10992 3536 11017
      3548 11035 3576 11041 3604 11038 3625 11009
      3625 10981 3608 10975




132 PM MST Mon Jul 24 2017

The National Weather Service in Flagstaff has issued a

* small stream flood advisory for...
Apache County in northeastern Arizona...
Navajo County in north central Arizona...

* until 430 PM MST

* at 130 PM MST, National Weather Service Doppler radar indicated a
large area of heavy precipitation producing thunderstorms in east-
central Arizona. These storms are producing 1-2 inches of rainfall
per hour and will cause multiple areas of minor flooding.

* Some locations that will experience flooding include...
St. Johns, cornfields chapter house, Hunt, Burnside, Klagetoh, Pine
Springs, Window Rock, Hubbell Trading Post National Historic Site,
Wide Ruins, Steamboat Canyon, Petrified Forest National Park,
Chambers, Lyman Lake State Park, Greasewood Springs, Nazlini,
Sanders, Concho, Sunrise Springs, Steamboat and Kinlichee chapter
house.

Precautionary/preparedness actions...

Most flood deaths occur in automobiles. Never drive your vehicle into
areas where water covers the roadway. Flood waters are usually deeper
than they appear. Just one foot of flowing water is powerful enough
to sweep vehicles off the Road. When encountering flooded roads, make
the smart choice: turn around, don't drown.


Lat... Lon 3593 10906 3521 10906 3481 10929 3420 10905
      3438 10970 3459 10992 3530 10991 3593 10990



Flash Flood Watch, Areal Flood Advisory
Issued: 3:32 PM MDT Jul. 24, 2017 – National Weather Service

... Flash Flood Watch remains in effect until midnight MST
tonight...

The Flash Flood Watch continues for

* portions of north central Arizona and northeast Arizona,
including the following areas, Coconino Plateau, Grand Canyon
country, Kaibab Plateau, Little Colorado River valley in
Coconino County, and Marble and Glen canyons, Black Mesa area,
Chinle Valley, Chuska Mountains and Defiance Plateau, northeast
plateaus and mesas Hwy 264 northward, and northeast plateaus and
mesas south of Hwy 264.

* Until midnight MST tonight

* abundant monsoon moisture is expected to produce showers and
thunderstorms through this evening. The stronger storms will be
capable of dropping rainfall amounts of 1 to 2 inches in a
short period of time.

* Areas of particular concern include the Grand Canyon, Havasu
Canyon and Supai, Antelope Canyon and other slot canyons. Low
water crossings in the watch area will also be susceptible to
flooding today.

Precautionary/preparedness actions...

A Flash Flood Watch means that developing conditions may lead to
flash flooding within the watch area. People... especially those
located along area creeks... rivers or other flash flood prone
areas... should continue to monitor later forecasts and be
prepared to take immediate action should flash flood warnings be
issued.



41


255 PM MST Mon Jul 24 2017

The National Weather Service in Flagstaff has issued a

* small stream flood advisory for...
Apache County in northeastern Arizona...
Navajo County in north central Arizona...

* until 600 PM MST

* at 250 PM MST, National Weather Service Doppler radar indicated a
cluster of thunderstorms that were producing heavy rain. These
storms were moving from southeast to northwest across the advisory
area. This will cause small stream and wash flooding in the
advisory area.

* Some locations that will experience flooding include...
Keams Canyon, tselani-Cottonwood, First Mesa, Low Mountain, Toyei,
Salina, Blue Gap chapter house, White Cone, jadito, Whippoorwill
chapter house, Indian Wells, Jeddito, Navajo, Pinon and Polacca.

Precautionary/preparedness actions...

Most flood deaths occur in automobiles. Never drive your vehicle into
areas where water covers the roadway. Flood waters are usually deeper
than they appear. Just one foot of flowing water is powerful enough
to sweep vehicles off the Road. When encountering flooded roads, make
the smart choice: turn around, don't drown.


Lat... Lon 3593 10981 3593 10990 3536 10992 3536 11017
      3548 11035 3576 11041 3604 11038 3625 11009
      3625 10981 3608 10975




132 PM MST Mon Jul 24 2017

The National Weather Service in Flagstaff has issued a

* small stream flood advisory for...
Apache County in northeastern Arizona...
Navajo County in north central Arizona...

* until 430 PM MST

* at 130 PM MST, National Weather Service Doppler radar indicated a
large area of heavy precipitation producing thunderstorms in east-
central Arizona. These storms are producing 1-2 inches of rainfall
per hour and will cause multiple areas of minor flooding.

* Some locations that will experience flooding include...
St. Johns, cornfields chapter house, Hunt, Burnside, Klagetoh, Pine
Springs, Window Rock, Hubbell Trading Post National Historic Site,
Wide Ruins, Steamboat Canyon, Petrified Forest National Park,
Chambers, Lyman Lake State Park, Greasewood Springs, Nazlini,
Sanders, Concho, Sunrise Springs, Steamboat and Kinlichee chapter
house.

Precautionary/preparedness actions...

Most flood deaths occur in automobiles. Never drive your vehicle into
areas where water covers the roadway. Flood waters are usually deeper
than they appear. Just one foot of flowing water is powerful enough
to sweep vehicles off the Road. When encountering flooded roads, make
the smart choice: turn around, don't drown.


Lat... Lon 3593 10906 3521 10906 3481 10929 3420 10905
      3438 10970 3459 10992 3530 10991 3593 10990



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