Flash Flood Warning 119, NWS Flagstaff, AZ

045 
WGUS75 KFGZ 240359
FFSFGZ

Flash Flood Statement
National Weather Service Flagstaff AZ
859 PM MST THU AUG 23 2018

AZC025-241000-
/O.CON.KFGZ.FF.W.0119.000000T0000Z-180824T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yavapai-
859 PM MST THU AUG 23 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 300 AM MST FRIDAY
FOR YAVAPAI COUNTY...

At 854 PM MST, flood waters are moving down the Agua Fria River from 
Cordes Junction. The river guage at Cordes Junction measured a 5 
foot rise at 840 PM with a flow of 3560 cfs.  The flood crest is 
expected to reach the Black Canyon City area between 200 AM and 400 
AM Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 3432 11205 3425 11204 3416 11207 3408 11210
      3406 11215 3413 11212 3425 11210 3432 11212

$$
41

736 
WGUS75 KFGZ 240958
FFSFGZ

Flash Flood Statement
National Weather Service Flagstaff AZ
258 AM MST FRI AUG 24 2018

AZC025-241003-
/O.EXP.KFGZ.FF.W.0119.000000T0000Z-180824T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yavapai-
258 AM MST FRI AUG 24 2018

...THE FLASH FLOOD WARNING FOR YAVAPAI COUNTY WILL EXPIRE AT 300 AM
MST...

The heavy rain has ended. Flood waters have receded at Mayer Bridge. 
Flooding is no longer expected to pose a threat in the upper part of 
Big Bug Creek. Please continue to heed any remaining road closures. 
Flooding will still be an issue in the Aqua Fria Wash at and below 
Horseshoe Ranch.

LAT...LON 3432 11205 3425 11204 3416 11207 3408 11210
      3406 11215 3413 11212 3425 11210 3432 11212

$$

MAS

Area Forecast Discussion
National Weather Service Flagstaff AZ
332 PM MST Thu Aug 23 2018

.SYNOPSIS...Deep monsoon moisture will bring another round of
afternoon and evening thunderstorms Friday. Drier air advecting
into the region will lead to a downturn in shower and
thunderstorm activity over the weekend into early next week.

&&

.DISCUSSION...Scattered to numerous shower and thunderstorm
activity is ongoing across northern Arizona this afternoon. Storms
have been most numerous across Coconino and Yavapai counties with
more isolated activity over eastern portions of the Rim. Latest
hi-res guidance indicates storm activity will diminish through the
evening hours with little in the way of overnight convection.

Another active monsoon day looks to be on tap for Friday. Moisture
will slightly decrease over northern portions of the area so
expect thunderstorms to be more focused along the Rim from roughly
Flagstaff to the White Mountains with more isolated activity to
the north. Drier air will continue to slowly advect into the
region over the weekend resulting in a continued decrease in
convection. However, enough moisture will remain in the White
Mountains for scattered to numerous storms each afternoon.

A drier airmass will remain in place early next week so we are
only expecting isolated monsoon activity each afternoon. Long
range model guidance indicates these drier conditions could last
well into next week.

&&

.AVIATION...For the 00Z package...Sct-nmrs shra/tsra and isold +tsra
diminishing after 02z. Most active areas along and west of a KPGA-
KGCN-FLG-KSOW line. Brief MVFR/IFR possible in the strongest cells.
Light winds, except for thunderstorm outflows. Shower and
thunderstorm activity decreases Friday with the most active areas
along the Rim from KFLG southeast to the White Mountains. Aviation
discussion not updated for TAF amendments.

&&

.FIRE WEATHER...Monsoon moisture will remain over the district
with good chances for showers and thunderstorms again Friday. Drier
air will slowly move in beginning Saturday resulting in a downturn
in shower and thunderstorm activity for areas north and east of the
Mogollon Rim.

Sunday through Tuesday...Drier air will remain over the region
leading to decreased shower and thunderstorm activity. Scattered
showers and thunderstorms are still expected in the White
Mountains region each afternoon.

&&

.FGZ WATCHES/WARNINGS/ADVISORIES...NONE.

&&

PUBLIC...TPS
AVIATION...TPS
FIRE WEATHER...TPS

For Northern Arizona weather information visit
weather.gov/flagstaff

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
616 PM MST THU AUG 23 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0554 PM     FLASH FLOOD      MAYER                   34.40N 112.23W
08/23/2018                   YAVAPAI            AZ   MESONET

            A STREAM GAUGE ON BIG BUG CREEK IN MAYER AT
            THE CENTRAL AVENUE BRIDGE MEASURED A STAGE
            OF 6.6 FEET, INDICATING ABOUT A 5 FOOT RISE.

&&

MCT