Flash Flood Warning 2, NWS Flagstaff, AZ

698 
WGUS75 KFGZ 040113
FFSFGZ

Flash Flood Statement
National Weather Service Flagstaff AZ
Issued by National Weather Service Las Vegas NV
613 PM MST Tue Jun 3 2025

AZC005-040245-
/O.CON.KFGZ.FF.W.0002.000000T0000Z-250604T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Coconino AZ-
613 PM MST Tue Jun 3 2025

...FLASH FLOOD WARNING FOR THE HAVASU CREEK BASIN REMAINS IN EFFECT 
UNTIL 745 PM MST THIS EVENING FOR WEST CENTRAL COCONINO COUNTY...

At 610 PM MST, Doppler radar indicated thunderstorms producing heavy 
rain over the Havasu Creek basin. Between 1 and 2 inches of rain 
have fallen near Supai, with 2 to 3 inches in the upper Havau Creek 
basin. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Life-threatening flash flooding. Thunderstorms producing
         flash flooding in and around the Havasu Creek basin.

SOURCE...Radar.

IMPACT...Life threatening flash flooding of areas in and around
         the Havasu Creek basin.

Some locations that will experience flash flooding include...
  Grand Canyon National Park, Hualapai Hilltop, Little Navajo Falls, 
  Mooney Falls, Beaver Falls, Supai and Havasupai Reservation.

This includes the Colorado River between miles 155 and 159.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Campers and hikers should hustle to higher ground immediately! Stay 
away from creeks and washes!

Foot bridges will be washed out in Supai Campground. Some campsites 
will be flooded. Campers may be stranded in portions of the 
campground.

&&

LAT...LON 3631 11273 3628 11268 3605 11250 3603 11259
      3620 11269 3615 11271 3611 11271 3612 11275
      3620 11278 3627 11278 3630 11279 3630 11277
      3631 11276 3632 11276 3633 11275 3632 11274

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

$$

Humphreys

269 
WGUS75 KFGZ 040135
FFSFGZ

Flash Flood Statement
National Weather Service Flagstaff AZ
Issued by National Weather Service Las Vegas NV
635 PM MST Tue Jun 3 2025

AZC005-040245-
/O.CON.KFGZ.FF.W.0002.000000T0000Z-250604T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Coconino AZ-
635 PM MST Tue Jun 3 2025

...FLASH FLOOD WARNING FOR THE HAVASU CREEK BASIN REMAINS IN EFFECT 
UNTIL 745 PM MST THIS EVENING FOR WEST CENTRAL COCONINO COUNTY...

At 634 PM MST, local law enforcement reported stranded hikers due to 
flooding along Havasu Creek. Between 1 and 2 inches of rain have 
fallen near Supai, with 2 to 3 inches in the upper Havau Creek 
basin. Additional rainfall amounts up to 1 inch are possible in the 
warned area. Flash flooding is already occurring.

HAZARD...Life-threatening flash flooding. Thunderstorms producing
         flash flooding in and around the Havasu Creek basin.

SOURCE...Law enforcement reported.

IMPACT...Life threatening flash flooding of areas in and around
         the Havasu Creek basin.

Some locations that will experience flash flooding include...
  Grand Canyon National Park, Hualapai Hilltop, Little Navajo Falls, 
  Mooney Falls, Beaver Falls, Supai and Havasupai Reservation.

This includes the Colorado River between miles 155 and 159.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Campers and hikers should hustle to higher ground immediately! Stay 
away from creeks and washes!

Foot bridges will be washed out in Supai Campground. Some campsites 
will be flooded. Campers may be stranded in portions of the 
campground.

&&

LAT...LON 3631 11273 3628 11268 3605 11250 3603 11259
      3620 11269 3615 11271 3611 11271 3612 11275
      3620 11278 3627 11278 3630 11279 3630 11277
      3631 11276 3632 11276 3633 11275 3632 11274

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

Humphreys

299 
WGUS55 KFGZ 040235
FFWFGZ
AZC005-040645-
/O.EXT.KFGZ.FF.W.0002.000000T0000Z-250604T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Flagstaff AZ
Issued by National Weather Service Las Vegas NV
735 PM MST Tue Jun 3 2025

The National Weather Service in Flagstaff has extended the

* Flash Flood Warning for...
  The Havasu Creek basin in...
  West Central Coconino County in north central Arizona...

* Until 1145 PM MST.

* At 734 PM MST, local law enforcement reported stranded hikers due 
  to flooding along Havasu Creek. Between 1 and 2 inches of rain 
  have fallen near Supai, with 2 to 3 inches in the upper Havau 
  Creek basin. Additional rainfall amounts up to 1 inch are possible 
  in the warned area. Flash flooding is already occurring.

  HAZARD...Life-threatening flash flooding. Thunderstorms
           producing flash flooding in and around the Havasu
           Creek basin.

  SOURCE...Law enforcement reported.

  IMPACT...Life threatening flash flooding of areas in and around
           the Havasu Creek basin.

* Some locations that will experience flash flooding include...
  Grand Canyon National Park, Hualapai Hilltop, Little Navajo Falls, 
  Mooney Falls, Beaver Falls, Supai and Havasupai Reservation.

This includes the Colorado River between miles 155 and 159.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Campers and hikers should hustle to higher ground immediately! Stay 
away from creeks and washes!

Foot bridges will be washed out in Supai Campground. Some campsites 
will be flooded. Campers may be stranded in portions of the 
campground.

&&

LAT...LON 3631 11273 3628 11268 3605 11250 3603 11259
      3620 11269 3615 11271 3611 11271 3612 11275
      3620 11278 3627 11278 3630 11279 3630 11277
      3631 11276 3632 11276 3633 11275 3632 11274

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

Humphreys

461 
WGUS55 KFGZ 040458
FFWFGZ
AZC005-041245-
/O.EXT.KFGZ.FF.W.0002.000000T0000Z-250604T1245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Flagstaff AZ
Issued by National Weather Service Las Vegas NV
958 PM MST Tue Jun 3 2025

The National Weather Service in Flagstaff has extended the

* Flash Flood Warning for...
  The Havasu Creek basin in...
  West Central Coconino County in north central Arizona...
  The Colorado River between miles 155 and 159...

* Until 545 AM MST Wednesday.

* At 953 PM MST, upstream river gauges indicated high water moving 
  down Cataract Creek and into Havasu Creek from earlier heavy 
  rainfall. Between 1 and 2 inches of rain have fallen near Supai, 
  with 2.5 to 3.5 inches falling in the upper Havasu Creek basin. 
  Flooding impacts will continue downstream into Supai overnight. 
  Flash flooding is already occurring.

  HAZARD...Life-threatening flash flooding. Thunderstorms
           producing flash flooding in and around the Havasu
           Creek basin.

  SOURCE...Gauges reported.

  IMPACT...Life threatening flash flooding of areas in and around
           the Havasu Creek basin.

* Some locations that will experience flash flooding include...
  Grand Canyon National Park, Hualapai Hilltop, Little Navajo Falls, 
  Mooney Falls, Beaver Falls, Supai and Havasupai Reservation.

This includes the Colorado River between miles 155 and 159.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Campers and hikers should hustle to higher ground immediately! Stay 
away from creeks and washes!

Foot bridges will be washed out in Supai Campground. Some campsites 
will be flooded. Campers may be stranded in portions of the 
campground.

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

&&

LAT...LON 3631 11273 3628 11268 3605 11250 3603 11259
      3620 11269 3615 11271 3611 11271 3612 11275
      3620 11278 3627 11278 3630 11279 3630 11277
      3631 11276 3632 11276 3633 11275 3632 11274

FLASH FLOOD...GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

Humphreys

430 
WGUS75 KFGZ 040920
FFSFGZ

Flash Flood Statement
National Weather Service Flagstaff AZ
Issued by National Weather Service Las Vegas NV
220 AM MST Wed Jun 4 2025

AZC005-041245-
/O.CON.KFGZ.FF.W.0002.000000T0000Z-250604T1245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Coconino AZ-
220 AM MST Wed Jun 4 2025

...FLASH FLOOD WARNING FOR THE HAVASU CREEK BASIN REMAINS IN EFFECT 
UNTIL 545 AM MST EARLY THIS MORNING FOR WEST CENTRAL COCONINO 
COUNTY...

At 217 AM MST, upstream river gauges indicated high water moving 
down Cataract Creek and into Havasu Creek from earlier heavy 
rainfall. Between 1 and 2 inches of rain have fallen near Supai, 
with 2.5 to 3.5 inches falling in the upper Havasu Creek basin. 
Flooding impacts will continue downstream into Supai overnight. 
Flash flooding is already occurring.

HAZARD...Life-threatening flash flooding. Thunderstorms producing
         flash flooding in and around the Havasu Creek basin.

SOURCE...Gauges reported.

IMPACT...Life threatening flash flooding of areas in and around
         the Havasu Creek basin.

Some locations that will experience flash flooding include...
  Grand Canyon National Park, Hualapai Hilltop, Little Navajo Falls, 
  Mooney Falls, Beaver Falls, Supai and Havasupai Reservation.

This includes the Colorado River between miles 155 and 159.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Campers and hikers should hustle to higher ground immediately! Stay 
away from creeks and washes!

Foot bridges will be washed out in Supai Campground. Some campsites 
will be flooded. Campers may be stranded in portions of the 
campground.

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

&&

LAT...LON 3631 11273 3628 11268 3605 11250 3603 11259
      3620 11269 3615 11271 3611 11271 3612 11275
      3620 11278 3627 11278 3630 11279 3630 11277
      3631 11276 3632 11276 3633 11275 3632 11274

FLASH FLOOD...GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

PTK

330 
WGUS55 KFGZ 041233
FFWFGZ
AZC005-041645-
/O.EXT.KFGZ.FF.W.0002.000000T0000Z-250604T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Flagstaff AZ
Issued by National Weather Service Las Vegas NV
533 AM MST Wed Jun 4 2025

The National Weather Service in Flagstaff has extended the

* Flash Flood Warning for...
  The Havasu Creek basin in...
  West Central Coconino County in north central Arizona...

* Until 945 AM MST.

* At 530 AM MST, upstream river gauges indicated high water moving 
  down Cataract Creek and into Havasu Creek from heavy rainfall last 
  night. Between 1 and 2 inches of rain have fallen near Supai, with 
  2.5 to 3.5 inches falling in the upper Havasu Creek basin. 
  Additional flooding is anticipated downstream into Supai this 
  morning.

  HAZARD...Life-threatening flash flooding. Thunderstorms
           producing flash flooding in and around the Havasu
           Creek basin.

  SOURCE...Gauges reported.

  IMPACT...Life threatening flash flooding of areas in and around
           the Havasu Creek basin.

* Some locations that will experience flash flooding include...
  Grand Canyon National Park, Hualapai Hilltop, Little Navajo Falls, 
  Mooney Falls, Beaver Falls, Supai and Havasupai Reservation.

This includes the Colorado River between miles 155 and 159.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Campers and hikers should hustle to higher ground immediately! Stay 
away from creeks and washes!

Foot bridges will be washed out in Supai Campground. Some campsites 
will be flooded. Campers may be stranded in portions of the 
campground.

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

&&

LAT...LON 3631 11273 3628 11268 3605 11250 3603 11259
      3620 11269 3615 11271 3611 11271 3612 11275
      3620 11278 3627 11278 3630 11279 3630 11277
      3631 11276 3632 11276 3633 11275 3632 11274

FLASH FLOOD...GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

PTK

331 
WGUS55 KFGZ 041549
FFWFGZ
AZC005-042200-
/O.EXT.KFGZ.FF.W.0002.000000T0000Z-250604T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Flagstaff AZ
Issued by National Weather Service Las Vegas NV
849 AM MST Wed Jun 4 2025

The National Weather Service in Flagstaff has extended the

* Flash Flood Warning for...
  The Havasu Creek basin in...
  West Central Coconino County in north central Arizona...

* Until 300 PM MST Wednesday.

* At 842 AM MST, upstream river gauges indicated high water moving 
  down Cataract Creek and into Havasu Creek from heavy rainfall last 
  night. Between 2 and 4 inches of rain fell in the upper Havasu 
  Creek basin Tuesday evening. Additional minor flooding is 
  anticipated downstream into Supai today, with the flood wave 
  expected to arrive in Supai between 11 AM and 3 PM MST.

  HAZARD...Life-threatening flash flooding. Heavy rain producing
           flash flooding in and around the Havasu Creek basin.

  SOURCE...Gauges reported.

  IMPACT...Life threatening flash flooding of areas in and around
           the Havasu Creek basin.

* Some locations that will experience flash flooding include...
  Grand Canyon National Park, Hualapai Hilltop, Little Navajo Falls, 
  Mooney Falls, Beaver Falls, Supai and Havasupai Reservation.

This includes the Colorado River between miles 155 and 159.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Campers and hikers should hustle to higher ground immediately! Stay 
away from creeks and washes!

Foot bridges will be washed out in Supai Campground. Some campsites 
will be flooded. Campers may be stranded in portions of the 
campground.

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

&&

LAT...LON 3631 11273 3628 11268 3605 11250 3603 11259
      3620 11269 3615 11271 3611 11271 3612 11275
      3620 11278 3627 11278 3630 11279 3630 11277
      3631 11276 3632 11276 3633 11275 3632 11274

FLASH FLOOD...GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

JJ

348 
WGUS75 KFGZ 042158
FFSFGZ

Flash Flood Statement
National Weather Service Flagstaff AZ
Issued by National Weather Service Las Vegas NV
258 PM MST Wed Jun 4 2025

AZC005-042208-
/O.EXP.KFGZ.FF.W.0002.000000T0000Z-250604T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Coconino AZ-
258 PM MST Wed Jun 4 2025

...FLASH FLOOD WARNING FOR THE HAVASU CREEK BASIN WILL EXPIRE AT 3 
PM MST THIS AFTERNOON IN COCONINO COUNTY...

Runoff from heavy rain upstream from Supai that occurred late 
Tuesday will continue to flow into Supai this afternoon and evening, 
but only minor rises are expected.

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

&&

LAT...LON 3631 11273 3628 11268 3605 11250 3603 11259
      3620 11269 3615 11271 3611 11271 3612 11275
      3620 11278 3627 11278 3630 11279 3630 11277
      3631 11276 3632 11276 3633 11275 3632 11274

$$

VEF

Area Forecast Discussion
National Weather Service Flagstaff AZ
Issued by National Weather Service Tucson AZ
141 PM MST Tue Jun 3 2025

.SYNOPSIS...Scattered showers and thunderstorms will continue the
rest of this afternoon and into tonight. A brief lull in shower
activity will occur Wednesday morning but showers and
thunderstorms will redevelop Wednesday afternoon. A slight chance
of showers and thunderstorms will continue along the Utah/Arizona
border on Thursday with the rest of the state beginning to dry
out.  Warmer and drier conditions return Friday through the
weekend.

&&

.DISCUSSION...Scattered thunderstorms are developing over the area
and will become more numerous this afternoon. These storms could
have more staying power than usual and last late into the night as
dynamics from the Low approaching from the California coast
provides extra lift that usually would be lost when we lose
daylight. A FLOOD WATCH for flash flooding is now in effect for
the northwestern part of the state and will continue until 5pm on
Wednesday. Reason for the long duration of the event being even
though we may see a brief lull in activity on Wednesday morning,
daytime heating along with the weakening Low moving across the
area providing extra lift will allow another round of showers and
storms to initiate around noon Wednesday and continue through the
evening. As with most convective events, rainfall amounts will be
locally heavy under storms that do develop.

By Thursday this Low will have opened up into a weak wave and
departed the area but another shortwave brushing by to the north
of us could trigger a few isolated showers or storms mainly along
the Arizona/Utah border, but potentially as far south as the Grand
Canyon, with the rest of Arizona drying out and beginning to warm
back up closer to early June averages.

By Friday and lasting through the weekend, high pressure begins to
rebuild from the south which will dry the rest of the state out
and allow temperatures to climb to seasonal or slightly above
seasonal averages.

&&

.AVIATION...Tuesday 03/18Z through Wednesday 04/18Z...VFR conditions
expected until around 19Z when scattered SHRA/TSRA begin to
develop. Scattered SHRA/TSRA continue through around 06Z, with a
40-60% chance of continuing through the overnight hours. A few of the
stronger storms could produce MVFR/IFR in +RA, hail, and gusty
winds. Outside of storm activity, winds W-SW at 5-15 kts.

OUTLOOK...Wednesday 04/18Z through Friday 06/18Z...Scattered to
numerous SHRA/TSRA on Wednesday before decreasing after 00Z Thurs.
Local MVFR/IFR possible in stronger storms with otherwise mostly
VFR. A 20-30% chance of -TSRA continues from KGCN northward from
00Z Thurs - 00Z Fri. Away from storms, winds mainly W-SW around
5-15 kts.

&&

.FIRE WEATHER...Wednesday and Thursday, scattered showers and
thunderstorms continue on Wednesday, with only a few isolated
showers or storms along the Utah/Arizona border Thursday. A few
stronger storms could produce hail, heavy rain and erratic wind
gusts. Otherwise, expect daytime winds from the west to southwest
at 10-20 mph.

Friday through Sunday...Dry and warmer weather returns Friday
into the weekend with decreasing humidity each day and
temperatures climbing above average by the end of the weekend.
Winds generally west to southwest at 10-15 mph.

&&

.FGZ WATCHES/WARNINGS/ADVISORIES...
Flood Watch through Wednesday afternoon for AZZ004-006>008-012-
015-016-037-038.

&&

PUBLIC...Bernhart
AVIATION...JJ
FIRE WEATHER...Bernhart

For Northern Arizona weather information visit
weather.gov/flagstaff

Special Weather Statement
National Weather Service Flagstaff AZ
Issued by National Weather Service Las Vegas NV
115 PM MST Tue Jun 3 2025

AZZ012-015-032045-
Little Colorado River Valley in Coconino County-Western Mogollon Rim-
115 PM MST Tue Jun 3 2025

...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL COCONINO COUNTY
INCLUDING WINONA AND INTERSTATE 40 THROUGH 145 PM MST...

At 114 PM MST, Doppler radar was tracking a strong thunderstorm over
Winona, or 11 miles east of Flagstaff, moving east at 20 mph.

HAZARD...Wind gusts up to 40 mph and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Angell, Canyon Padre Bridge, Twin Arrows, and Winona.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3513 11146 3525 11143 3524 11120 3507 11122
TIME...MOT...LOC 2014Z 280DEG 18KT 3520 11143

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

JJ

Special Weather Statement
National Weather Service Flagstaff AZ
Issued by National Weather Service Las Vegas NV
157 PM MST Tue Jun 3 2025

AZZ012-013-032130-
Little Colorado River Valley in Navajo County-Little Colorado River
Valley in Coconino County-
157 PM MST Tue Jun 3 2025

...A STRONG THUNDERSTORM WILL IMPACT INTERSTATE 40 IN SOUTHWESTERN
NAVAJO AND SOUTHEASTERN COCONINO COUNTIES THROUGH 230 PM MST...

At 153 PM MST, Doppler radar was tracking a strong thunderstorm near
Winslow Airport, or near Winslow, moving east at 25 mph.

HAZARD...Wind gusts up to 40 mph and nickel size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Winslow, Winslow Airport, Homolovi State Park, Clear Creek Reservoir,
Bushman Acres, and Homolovi State Park Campground.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3500 11093 3515 11089 3514 11056 3491 11058
TIME...MOT...LOC 2053Z 284DEG 21KT 3506 11082

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

JJ