Alert archive / Arizona / Flash Flood Warnings in 2025

Flash Flood Warning 19, NWS Flagstaff, AZ

August 14, 2025Gila County, Yavapai County, Arizona

NWS Flagstaff, AZ issued this flash flood warning at Aug 14, 2025, 6:52 PM MST for Gila County, Yavapai County, Arizona. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 14, 2025, 6:52 PM MST (01:52 UTC)
Expired: Aug 14, 2025, 9:45 PM MST
In force: 3 hr
Issued by: NWS Flagstaff, AZ
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

Counties Gila County, AZ, Yavapai County, AZ

The radar

The Flagstaff radar (KFSX), 61 km from the middle of the area, began a volume at 01:56 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.

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 1.9 hours before the alert went out and 237 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3265 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 6 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Flagstaff, AZ wrote its last area forecast discussion before this flash flood warning went out at Aug 14, 4:40 PM MST, 2 hours 12 minutes earlier.

Area forecast discussion, Aug 14, 4:40 PM MST, 2 hours 12 minutes before

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In the hours before

Special weather statement, Aug 14, 1:42 PM MST, 5 hours 10 minutes before

Special Weather Statement
National Weather Service Flagstaff AZ
142 PM MST Thu Aug 14 2025

AZZ008-037-038-142115-
Yavapai County Valleys and Basins AZ-Oak Creek and Sycamore
Canyons AZ-Yavapai County Mountains AZ-
142 PM MST Thu Aug 14 2025

...A STRONG THUNDERSTORM IMPACTING STATE HIGHWAY 89A WEST OF
CLARKDALE UNTIL 215 PM MST...

At 142 PM MST, Doppler radar was tracking a strong thunderstorm over
Jerome State Historic Park, or 17 miles northeast of Prescott
Valley, moving north at 5 mph. This storm will cause hazardous
driving conditions along State Highway 89A.

HAZARD...Wind gusts up to 40 mph and half inch size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is possible.

Locations impacted include...
  Clarkdale, Jerome State Historic Park, Woodchute Mountain,
  Cottonwood Airport, Cottonwood, Verde Village, Jerome, Mingus
  Mountain, Tuzigoot National Monument and Dead Horse Ranch State
  Park.

This includes State Route 89A between mile markers 332 and 352.

This includes the following recreation areas and campgrounds...
Potato Patch Campground, Playground Group Campground, Potato Patch
Campground, Red-Tail Hawk Loop Campground, Quail Loop Campground,
Raven Loop Campground, Blackhawk Loop Campground and Cooper's Hawk
Loop Campground.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 3473 11230 3489 11221 3484 11195 3464 11209
      3471 11231
TIME...MOT...LOC 2039Z 199DEG 4KT 3476 11211

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

RR

Special weather statement, Aug 14, 3:04 PM MST, 3 hours 48 minutes before

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<head>
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</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

Everything else NWS Flagstaff, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 14, 5:17 PM MST	Flash Flood Warning Considerable damage threat	FGZ	Coconino, Gila	3 hr
Aug 14, 9:33 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	27 min
Aug 14, 10:30 PM MST	Flash Flood Warning	FGZ	Yavapai	2 hr
Aug 15, 2:05 PM MST	Special Weather Statement	FGZ		25 min
Aug 15, 2:53 PM MST	Special Weather Statement	FGZ		37 min
Aug 15, 3:05 PM MST	Severe Thunderstorm Warning	FGZ	Coconino, Yavapai	25 min
Aug 15, 3:31 PM MST	Areal Flood Advisory	FGZ	Coconino, Yavapai	3 hr
Aug 15, 3:58 PM MST	Special Weather Statement	FGZ		32 min
Aug 15, 4:10 PM MST	Special Weather Statement	FGZ	Coconino	35 min

Nearby

Flash Flood Warnings in Arizona, 2025 Every flash flood warning in 2025

Sources

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.