Flash Flood Warning 207, NWS Flagstaff, AZ

Issued

Aug 18, 2021, 1:09 PM MST (20:09 UTC)

Expired

Aug 18, 2021, 4:15 PM MST

In force

3 hr

Issued by

NWS Flagstaff, AZ

Area

Storm-based polygon

Damage threat

Considerable

Flood severity

None

County Coconino County, AZ

The Cedar City radar (KICX), 133 km from the middle of the area, began a volume at 20:09 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

682 
WGUS55 KFGZ 182009
FFWFGZ
AZC005-182315-
/O.NEW.KFGZ.FF.W.0207.210818T2009Z-210818T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Flagstaff AZ
109 PM MST Wed Aug 18 2021

The National Weather Service in Flagstaff has issued a

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

* Until 415 PM MST.

* At 108 PM MST, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 0.5 and 1 inch of rain 
  has fallen. Additional rainfall amounts of 0.25 to 1 inch are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Life-threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Radar.

  IMPACT...Life-threatening flash flooding of low-water
           crossings, creeks, normally dry washes and roads.

* Some locations that will experience flash flooding include...
  Grand Canyon National Park and Havasupai Reservation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Remain alert for flooding even in locations not receiving rain. 
Normally dry washes, slot canyons and creeks can become raging 
killer currents in a matter of minutes, even from distant rainfall.

Get out of washes and creeks if you are camping or hiking! Flooding 
is occurring or imminent and will inundate area drainages.

&&

LAT...LON 3649 11264 3649 11263 3653 11253 3648 11247
      3626 11269 3630 11277 3632 11276 3632 11272
      3635 11272 3636 11270 3634 11268 3635 11267
      3638 11265 3639 11263 3641 11262 3644 11265
      3644 11264 3646 11264 3647 11262 3648 11262

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

EL

217 
WGUS75 KFGZ 182306
FFSFGZ

Flash Flood Statement
National Weather Service Flagstaff AZ
406 PM MST Wed Aug 18 2021

AZC005-182316-
/O.EXP.KFGZ.FF.W.0207.000000T0000Z-210818T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Coconino AZ-
406 PM MST Wed Aug 18 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 415 PM MST THIS AFTERNOON FOR 
COCONINO COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

A Flash Flood Watch remains in effect until 1100 PM MST Wednesday 
for portions of east central Arizona, north central Arizona, 
northeast Arizona and west central Arizona.

LAT...LON 3649 11264 3649 11263 3653 11253 3648 11247
      3626 11269 3630 11277 3632 11276 3632 11272
      3635 11272 3636 11270 3634 11268 3635 11267
      3638 11265 3639 11263 3641 11262 3644 11265
      3644 11264 3646 11264 3647 11262 3648 11262

$$

DB

Flash Flood Warnings in Arizona, 2021Every flash flood warning in 2021

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.