Arizona, 2024

Flash Flood and Heavy Rain in Arizona, June 25, 2024

June 25, 2024 · NWS FGZ · 2 events in 1 county or zone

Monsoon moisture brought thunderstorms to northern Arizona with a few strong storms.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS FGZ wrote it up.

Monsoon moisture brought thunderstorms to northern Arizona with a few strong storms.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Jun 25, 10:20 AM MST, 3 hours earlier.

Area forecast discussion, Jun 25, 10:20 AM MST, 3 hours before
Area Forecast Discussion
National Weather Service Flagstaff AZ
1020 AM MST Tue Jun 25 2024

.SYNOPSIS...Daily chances for afternoon and evening showers and
thunderstorms will continue through Thursday. Activity will
slowly decrease and become more focused over eastern Arizona by
the weekend.

&&

.DISCUSSION...A large-scale outflow moved across the state and into
Nevada overnight, ensuring another moist day. 12Z KFGZ sounding is
the most unstable and moist so far, there is very little to suppress
convection and we expect an early start. This deep/unstable profile
has a touch more shear when compared to yesterday and the threat for
severe (hail) should not be overlooked. However, the primary threat
is still heavy rain and slow-moving storms, that may lead to Flash
Flooding.

Adding a wrinkle to an otherwise standard, diurnally forced
convective forecast, is a well-defined MCV over the I-10 between
Phoenix and Tucson. This feature is progged to move into Yavapai
County this evening, potentially prolonging convection later into
the night. These features don't always pan out, especially if moving
into a worked-over airmass, but we will need to keep an eye on it.

Our ridge starts to get slightly suppressed and pushed southeastward
on Wednesday, in advance of an approaching, long-wave trough to our
north. This will not be enough to stop another active day, but you
may see activity starting to slide eastward, just a bit.

From Thursday through Saturday, the northern trough brings much
drier mid-level air to our area and the Monsoon moisture boundary
will be forced into southeastern Arizona. This will limit activity
to southern Apache County, for the most part. Moisture may return
heading into next week, but perhaps not as aggressive as what we
have seen for the last week.

No major updates planned this morning, perhaps we will tweak the
15Z-18Z PoPs a bit to reflect an earlier start, but that's about it.

&&

.AVIATION...Tuesday 25/18Z through Wednesday 26/18Z...Outside of
thunderstorm activity, mainly VFR conditions. From 19Z-03Z, SCT to
NMRS SHRA/TSRA and ISOLD +TSRA will produce localized MVFR/IFR.
Generally light winds outside of storms and storm outflow.

OUTLOOK...Wednesday 26/18Z through Friday 28/18Z...Outside of
thunderstorm activity, VFR conditions. From 19Z-03Z Wednesday and
Thursday, SCT to NMRS SHRA/TSRA and ISOLD +TSRA will still produce
localized MVFR/IFR. Generally light winds outside of storms and
storm outflow. Storm activity primarily along and east of the I-17
corridor Thursday, shifting even farther east by Friday. Light winds
becoming SW10-20g25kts during the daylight hours for Thursday/Friday.

&&

.FIRE WEATHER...Today and Wednesday...Afternoon showers and
thunderstorms continue. Winds will mainly be driven by outflows.
Stronger storms will bring heavy rainfall, hail, lightning, and
gusty, erratic winds. Min RHs ranging from 20 to 40 percent, with
good overnight recoveries.

Thursday through Saturday...Scattered showers and thunderstorms
again Thursday, but the emphasis shifts primarily to the Mogollon
Rim northeast and eastward. After Thursday, most of the central and
western zones become drier, warmer and breezy. Afternoon storm
chances continue for the eastern zones, but coverage becomes more
isolated. Expect southwest winds 10 to 15 mph, gusts from 20 to 30
mph, each day.

&&

.FGZ WATCHES/WARNINGS/ADVISORIES...None.

&&

PUBLIC...Peterson
AVIATION...Peterson
FIRE WEATHER...Peterson

For Northern Arizona weather information visit
weather.gov/flagstaff

In the hours before

Local storm report, Jun 25, 10:01 AM MST, 3 hours 19 minutes before
Preliminary Local Storm Report
National Weather Service Flagstaff AZ
1001 AM MST Tue Jun 25 2024

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

0240 PM     Funnel Cloud     4 WNW Twin Falls        36.89N 109.15W
06/21/2024                   Apache             AZ   Trained Spotter

            DELAYED REPORT from June 21: Rotating funnel
            observed for approx 10 minutes with
            supercell thunderstorm. Almost touched the
            ground. Location estimated from landmarks.

&&

BAK
Local storm report, Jun 25, 10:35 AM MST, 2 hours 45 minutes before
Preliminary Local Storm Report
National Weather Service Flagstaff AZ
1035 AM MST Tue Jun 25 2024

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

0300 PM     Flash Flood      4 WSW Rough Rock        36.39N 109.93W
06/22/2024                   Apache             AZ   Public

            DELAYED REPORT from June 22. Report from
            from social media. Road from Rough Rock to
            Blackmesa washed out, with very large
            boulders blocking the road. Time estimated
            from radar data.

&&

BAK
Local storm report, Jun 25, 11:06 AM MST, 2 hours 14 minutes before
Preliminary Local Storm Report
National Weather Service Flagstaff AZ
1106 AM MST Tue Jun 25 2024

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

0216 PM     Hail             4 SSE Tolikan (Sweetwat 36.80N 109.40W
06/21/2024  E1.25 Inch       Apache             AZ   Public

            DELAYED REPORT from June 21. Large hail
            broke windows in and around Immanuel Mission
            School. Time estimated from radar.

&&

BAK
Local storm report, Jun 25, 11:20 AM MST, 2 hours before
Preliminary Local Storm Report
National Weather Service Flagstaff AZ
1120 AM MST Tue Jun 25 2024

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

0235 PM     Flash Flood      1 ENE Tolikan (Sweetwat 36.86N 109.40W
06/21/2024                   Apache             AZ   Public

            DELAYED REPORT from June 21. Several dirt
            roads washed out and overtopped from flash
            floods in the area...locations not specific.
            Time estimated.

&&

BAK
Local storm report, Jun 25, 11:27 AM MST, 1 hour 53 minutes before
Preliminary Local Storm Report
National Weather Service Flagstaff AZ
1127 AM MST Tue Jun 25 2024

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

0215 PM     Tstm Wnd Dmg     4 SSE Tolikan (Sweetwat 36.80N 109.40W
06/21/2024                   Apache             AZ   Public

            DELAYED REPORT from June 21. Strong
            thunderstorm winds blew roofs from
            structures around Immanuel Mission.
            Windblown hail broke windows. Time estimated
            from radar.

&&

BAK

The radar

The Flagstaff radar (KFSX), 79 km away, was scanning. The volume nearest the first event began at 20:20 UTC.

Open the radar archive at this moment

Event by event

1 flash flood, 1 heavy rain. Local standard time, as filed.

Flash Flood, Coconino

When
June 25, 1:20 PM MST to 2:20 PM MST
Where
Coconino County, 1.12 mi ENE of Sunnyside to 1.34 mi E of Sunnyside
Cause
Heavy Rain
Reported by
Public
Coordinates
35.204, -111.601

Water was flowing at the intersection of Butler and Foxglenn in Flagstaff. There was a video on social media of a vehicle driving through the flood water and almost stalled.

Heavy Rain, Coconino

When
June 25, 2:00 PM MST to 3:00 PM MST
Where
Coconino County, 4.13 mi NNE of Munds Park to 1.1 mi WSW of Mountainaire
Reported by
Public
Coordinates
34.950, -111.630

A thunderstorm produce 1.42 inches of rain in about an hour near Munds Park.

What these are

Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
Heavy Rain
Rainfall totals unusual for the place and season that did not produce a flood.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Arizona in 2024Every state in 2024This day in weather historyWarnings in Arizona, June 2024

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1193197, 1193167.