Alert archive / Arizona / Flash Flood Warnings in 2026

Flash Flood Warning 11, NWS Tucson, AZ

June 25, 2026Cochise County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jun 25, 2026, 5:48 PM MST for Cochise County, Arizona. It was in force for 2 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 25, 2026, 5:48 PM MST (00:48 UTC)
Expired
Jun 25, 2026, 8:00 PM MST
In force
2 hr
Issued by
NWS Tucson, AZ
Area
Storm-based polygon
Flood severity
None

County Cochise County, AZ

The radar

The Tucson radar (KEMX), 35 km from the middle of the area, began a volume at 00:48 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.

What was reported inside it

TimeReportWhereRemark
Jun 25, 6:34 PM MSTRAIN 1.421 N Saint David, AZStorm total rainfall as of 634 PM MST. Rain fell over a period of 110 minutes. Private weather station.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Santa Teresa, NM (KEPZ), launched 00:00Z, 0.8 hours before the alert went out and 336 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-pSkew-T log-p diagram, Santa Teresa, NM at 00:00Z on 2026-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Santa Teresa, NM at 00:00Z on 2026-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
4607 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

448 
WGUS55 KTWC 260048
FFWTWC
AZC003-260300-
/O.NEW.KTWC.FF.W.0011.260626T0048Z-260626T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tucson AZ
548 PM MST Thu Jun 25 2026

The National Weather Service in Tucson has issued a

* Flash Flood Warning for...
  West Central Cochise County in southeastern Arizona...

* Until 800 PM MST.

* At 548 PM MST, Doppler radar and automated rain gauges indicated
  thunderstorms producing heavy rain from Benson into St David,
  especially along and near Highway 80. Between 1 and 2 inches of
  rain have fallen. Additional rainfall amounts up to 0.5 inches are
  possible in the warned area. Flash flooding is ongoing or expected
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and automated gauges.

  IMPACT...Flash flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other poor
           drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  St. David.

This includes the following highways...
Route 90 between mile markers 295 and 297. Route 80 between mile
markers 296 and 301. Interstate 10 between mile markers 309 and 310.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3199 11022 3194 11014 3185 11027 3185 11035
      3188 11035

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

EDWARDS
2 follow-up statements
112 
WGUS75 KTWC 260136
FFSTWC

Flash Flood Statement
National Weather Service Tucson AZ
636 PM MST Thu Jun 25 2026

AZC003-260300-
/O.CON.KTWC.FF.W.0011.000000T0000Z-260626T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cochise AZ-
636 PM MST Thu Jun 25 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING
FOR THE ST DAVID AREA OF WEST CENTRAL COCHISE COUNTY...

At 636 PM MST, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain from Benson into St. David,
especially along and near Highway 80. Between 1.5 and 2.25 inches of
rain have fallen. Flash flooding is ongoing or expected to begin
shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar and automated gauges.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  St. David.

This includes the following highways...
Route 90 between mile markers 295 and 297. Route 80 between mile
markers 296 and 301. Interstate 10 between mile markers 309 and 310.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3199 11022 3194 11014 3185 11027 3185 11035
      3188 11035

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

EDWARDS
066 
WGUS75 KTWC 260257
FFSTWC

Flash Flood Statement
National Weather Service Tucson AZ
757 PM MST Thu Jun 25 2026

AZC003-260307-
/O.EXP.KTWC.FF.W.0011.000000T0000Z-260626T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cochise AZ-
757 PM MST Thu Jun 25 2026

...FLASH FLOOD WARNING WILL EXPIRE AT 8 PM MST THIS EVENING FOR THE
ST DAVID AREA OF WEST CENTRAL COCHISE COUNTY...

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

&&

LAT...LON 3199 11022 3194 11014 3185 11027 3185 11035
      3188 11035

$$

EDWARDS

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 Tucson, AZ wrote its last area forecast discussion before this flash flood warning went out at Jun 25, 12:58 PM MST, 4 hours 50 minutes earlier.

Area forecast discussion, Jun 25, 12:58 PM MST, 4 hours 50 minutes before
Area Forecast Discussion
National Weather Service Tucson AZ
1258 PM MST Thu Jun 25 2026

.SYNOPSIS...Chance of thunderstorms from Tucson south and east
this afternoon, slight chance Friday along the AZ/NM border, with
dry conditions returning this weekend into next week. High
temperatures will be 2-6 degrees above normal through Saturday then
around normal Sunday into next week. Breezy southwest winds during
the afternoon and evening Friday through Monday resulting in areas
of critical fire weather conditions.

&&

.DISCUSSION...Southwesterly flow aloft prevails this afternoon
between the subtropical high centered over Chihuahua and weak
troughing along the west coast. Latest visible satellite imagery
along with KEMX radar shows clouds developing along with a few
showers and thunderstorms across Graham/Greenlee/Cochise counties at
this time. That is where the focus of the convection will be this
afternoon as the combination of PWAT's around 1 to 1.2 inches and
MLCAPE around 1000 J/KG support scattered thunderstorms. Coverage
will be greater than yesterday afternoon, with Tucson being on the
western edge of thunderstorm activity. The main threat for storms
today will be gusty outflow winds of 40-50+ mph. The secondary
threats will be flash flooding with any back-building/training
storms (primarily for Cochise County) and hail with the strongest
storms as 0-6km bulk shear around 20 kts will help support a few
stronger updrafts. Most of the convection should weaken earlier this
evening, though the CAMs do show potential for a complex along the
Sonora/Chihuahua border well south of the Int'l border this evening
and that can push some outflow into Cochise County later tonight.
Outside of thunderstorms, heat is the main story with an Extreme
Heat Warning in effect until 8 PM for portions of southeast Arizona.

Our area will start to become more under the influence of stronger
westerly flow aloft Friday as troughing builds down the west coast.
There will still be enough residual moisture for isolated storms (10-
20 percent chance) near the AZ/NM border Friday afternoon. As
southwest breezes increase Friday afternoon to around 15-20 mph with
gusts around 30 mph, elevated to near critical fire weather
conditions will return to much of the forecast area. High
temperatures Friday will lower about 1 to 2 degrees compared to
today.

As an anomalously strong trough sets up on the west coast in an
amplified pattern this weekend with the subtropical high over the
lower Mississippi Valley, that will bring in a drier airmass for all
of southeast Arizona along with a continuation of breezy to windy
conditions this weekend. Southwest winds both Saturday and Sunday
afternoon will be sustained around 15-25 mph with gusts 30-40 mph.
The combination of these strong winds and dry conditions will result
in critical fire weather conditions and a Red Flag Warning is in
effect this weekend. Temperatures by Sunday will lower to near or
even slightly below normal levels.

Breezy conditions will continue Monday with elevated to locally near
critical fire weather conditions. Thereafter, broad troughing and
southwesterly flow through much of next week with temperatures near
to slightly below normal. Looking for monsoon moisture, as the
trough weakens late next week, the flow will become more southerly.
Initially, any moisture will remain along the AZ/NM border around
next Thursday and Friday. We'll have to see how things evolve for
the July 4th weekend but hints of a more typical monsoon pattern
with a Four Corners high developing around July 5th or just beyond.

&&

.AVIATION... Valid through 27/00Z.
SCT clouds at 12k-15k ft AGL and SCT-BKN AOA 20k ft AGL mainly from
Tucson south and eastward thru 26/06Z and again aft 26/19Z. Isolated
to scattered -SHRA/-TSRA from KTUS south and eastward will continue
through roughly 26/04Z. The best chances will be in Cochise and
Graham Counties including KDUG, with lower confidence in any storms
impacting KTUS/KOLS terminals. Strong outflow winds 30-40 kts will
be possible in the vicinity of storms. Otherwise SFC winds WLY-NWLY
at 8-14 kts with ocnl gusts to 20-25 kts thru 26/03Z, becoming
variable in direction at less than than 8 kts thereafter thru
26/16Z. Sfc winds increase again aft 26/16Z becoming SLY/SWLY at 10-
20 kts with gusts up to around 30 kts. Aviation discussion not
updated for TAF amendments.

&&

.FIRE WEATHER...Expect scattered showers and thunderstorms from
Tucson south and eastward this afternoon and along the AZ/NM
border Friday. Thunderstorms will be capable of wind gusts to 40+
mph. A bit of residual moisture for isolated storms along the AZ/NM
border Friday afternoon, but otherwise drier conditions start to
move in  with minimum relative humidity levels in the 10-20 percent
range. Areas along the international border will be on the higher
end of that range. Southwest winds increase Friday afternoon as a
weather system moves through to the north, and stay breezy through
Monday. Saturday and Sunday continue to appear to be the breeziest
days with some locations seeing Red Flag conditions in the afternoon
and evening from Sells eastward. Southwest winds of 15-25 mph and
gusts to 35-40 mph are expected Saturday and Sunday
afternoon/evenings. Outside of the Red Flag period Saturday and
Sunday, elevated fire weather conditions are expected Friday and
Monday. Winds will be lower the middle of next week. Some monsoon
moisture returns along the AZ/NM border late next week.

&&

.TWC WATCHES/WARNINGS/ADVISORIES...
Extreme Heat Warning until 8 PM MST this evening for
AZZ504>507-509.
Red Flag Warning from 10 AM Saturday to 8 PM MST Sunday for
AZZ150>154.

&&

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In the hours before

Local storm report, Jun 25, 1:59 PM MST, 3 hours 49 minutes before
Preliminary Local Storm Report
National Weather Service Tucson AZ
159 PM MST Thu Jun 25 2026

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

0800 PM     Rain             2 WNW Sierra Vista      31.57N 110.35W
06/24/2026  M2.36 Inch       Cochise            AZ   Other Federal

            Delayed report. Rainfall from thunderstorms
            through the afternoon.

&&

AJE
Local storm report, Jun 25, 4:53 PM MST, 55 minutes before
Preliminary Local Storm Report
National Weather Service Tucson AZ
453 PM MST Thu Jun 25 2026

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

0450 PM     Flash Flood      1 NW Benson             31.97N 110.31W
06/25/2026                   Cochise            AZ   Trained Spotter

            Flooded roadways in Benson, AZ with water
            going over curbs. An estimated 6 inches of
            water moving over roadways.

&&

JVT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 5:51 PM MSTAreal Flood AdvisoryTWCPima114 min

Nearby

Flash Flood Warnings in Arizona, 2026Every flash flood warning in 2026

Sources

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