Alert archive / Arizona / Flash Flood Warnings in 2026
Flash Flood Warning 192, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Sep 9, 2026, 9:31 PM MST for Cochise County, Arizona. It was in force for 119 min. 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
- Sep 9, 2026, 9:31 PM MST (04:31 UTC)
- Expired
- Sep 9, 2026, 11:30 PM MST
- In force
- 119 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Cochise County, AZ
The radar
The Tucson radar (KEMX), 57 km from the middle of the area, began a volume at 04:35 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 9, 11:00 PM MST | FLASH FLOOD | 21 N Benson, AZ | Delayed report. Law enforcement reported flooding and debris on Cascabel road prompting road closure. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this flash flood warning; the first came 89 minutes after it went out.
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, 4.5 hours before the alert went out and 338 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.
- Mixed-layer CAPE
- 1615 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 2295 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- -32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
452
WGUS55 KTWC 100431
FFWTWC
AZC003-100630-
/O.NEW.KTWC.FF.W.0192.260910T0431Z-260910T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tucson AZ
931 PM MST Wed Sep 9 2026
The National Weather Service in Tucson has issued a
* Flash Flood Warning for...
Northwestern Cochise County in southeastern Arizona...
* Until 1130 PM MST.
* At 931 PM MST, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
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...
Muleshoe Ranch Preserve and Cascabel.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3242 11045 3209 11044 3208 11024 3233 10996
3242 10996
FLASH FLOOD...RADAR INDICATED
$$
GLZ1 follow-up statement
607
WGUS75 KTWC 100625
FFSTWC
Flash Flood Statement
National Weather Service Tucson AZ
1125 PM MST Wed Sep 9 2026
AZC003-100635-
/O.EXP.KTWC.FF.W.0192.000000T0000Z-260910T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cochise AZ-
1125 PM MST Wed Sep 9 2026
...FLASH FLOOD WARNING WILL EXPIRE AT 1130 PM MST THIS EVENING FOR
NORTHWESTERN COCHISE COUNTY...
Flash flooding is no longer expected to pose a threat. Please
continue to heed remaining road closures.
&&
LAT...LON 3242 11045 3209 11044 3208 11024 3233 10996
3242 10996
$$
CWRWhat 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 Sep 9, 1:57 PM MST, 7 hours 34 minutes earlier.
Area forecast discussion, Sep 9, 1:57 PM MST, 7 hours 34 minutes before
Area Forecast Discussion National Weather Service Tucson AZ 157 PM MST Wed Sep 9 2026 .SYNOPSIS...Scattered thunderstorms this afternoon and this evening, especially south and east of Tucson. Storms will be stronger than we have seen the past several days, with heavy rainfall leading to localized flash flooding as the primary hazard from these storms, with a secondary hazard of strong outflow winds to 40-50 mph east of Tucson. Thunderstorms chances continue Thursday into the weekend. High temperatures will will fluctuate between near normal and a few degrees below normal. && .DISCUSSION...This morning's MCS has now turned into an MCV and is moving towards Puerto Penasco with isolated storms over the White Mountains, Chiricahuas, and Pinalenos. The atmosphere is very moist with surface dewpoints in the low to mid 60s across southeast Arizona. PWATs are 1.3" along the AZ/NM border, 1.5" over Tucson, and 2" over far western Pima County. Aloft broad high pressure covers most of the southern half of the country with two centers over the AZ/NM border and the coast of South Carolina. This will put southeast Arizona under east to northeast steering flow, allowing for a possible rim shot day. Storm movement will probably be more NE-SW coming off the rim and more east to west elsewhere. CAMs show continued development over the higher terrain east of Tucson as well as south through the afternoon with storms then moving into the lower deserts late afternoon into the evening. The last couple HRRR runs have kept Tucson on the northern periphery of storm coverage, with best chances for Tucson seeing storms this evening. The biggest threat today will be heavy rainfall leading to flash flooding with the best chances for this south and east of Tucson. The 09/12Z HREF is also hinting at a slight chance for isolated strong to severe winds late this afternoon and evening over Graham and eastern Pinal Counties as storms move off the rim. High pressure stays centered to the west northwest over the next couple of days keeping southeast Arizona under northeast flow. Above normal moisture will still be in place leading to continued storm chances south and east of Tucson Thursday and Friday. This weekend into early next week a closed low moves in the Pacific Northwest and moves inland towards the northern Rockies. This will shunt the ridge to the east over Texas or the southeast U.S. Mid-level flow may briefly turn southwest but for the most part will stay southerly to easterly, which will allow moisture to stick around. Expect continued daily isolated to scattered thunderstorms mainly from central Pima County eastward with the main threat being heavy rainfall. As September continues the sun angle will continue to lower with less intense surface hearing. This will result in a slight reduction of storm intensity without more upper level support, even with above normal moisture. && .AVIATION...Valid thru 11/00Z. SCT-BKN 7-10k ft AGL BKN 14-18k ft AGL this afternoon into the early evening as storms form. Scattered SHRA/TSRA mainly south and east of Tucson thru 10/04Z. KTUS will be on the northern periphery of storm activity and could see vicinity TSRA. Localized thunderstorm outflow winds 30-40 kts possible. Otherwise, SFC winds will generally be WLY/NWLY 5-10 kts during the afternoon and evening, then light and terrain driven at other times. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER...Scattered thunderstorms this afternoon and this evening, especially south and east of Tucson. Storms will be stronger than we have seen the past several days, with heavy rainfall leading to localized flash flooding as the primary hazard from these storms, with a secondary hazard of strong outflow winds to 40-45 mph east of Tucson. Isolated to scattered thunderstorms continue daily into early next week. High temperatures will will fluctuate between near normal and a few degrees below normal into early next week. Min RH values mainly 20 to 45 percent in the valleys and 30 to 60 percent in the mountains over the next week. RH recoveries will continue to be excellent overnight. Winds will generally remain less than 15 mph and terrain driven through the week. Expect gusty and erratic winds around thunderstorms. && .TWC WATCHES/WARNINGS/ADVISORIES... None. && Hardin Visit us on Facebook, X, YouTube, and at weather.gov/Tucson
In the hours before
Local storm report, Sep 9, 5:06 PM MST, 4 hours 25 minutes before
Preliminary Local Storm Report
National Weather Service Tucson AZ
506 PM MST Wed Sep 9 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0444 PM Tstm Wnd Gst 1 N Patagonia 31.56N 110.75W
09/09/2026 M73 MPH Santa Cruz AZ Public
Public personal weather station recorded
wind gust of 73 mph.
&&Local storm report, Sep 9, 6:57 PM MST, 2 hours 34 minutes before
Preliminary Local Storm Report
National Weather Service Tucson AZ
657 PM MST Wed Sep 9 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0614 PM Tstm Wnd Gst 7 ENE Huachuca City 31.68N 110.24W
09/09/2026 M58 MPH Cochise AZ Public
Public weather station recorded 58 MPH wind
gust.
&&Local storm report, Sep 9, 7:39 PM MST, 1 hour 52 minutes before
Preliminary Local Storm Report
National Weather Service Tucson AZ
739 PM MST Wed Sep 9 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0645 PM Flash Flood 8 NE Huachuca City 31.70N 110.23W
09/09/2026 Cochise AZ Other Federal
River gauge on the Baboquivari River near
Tombstone recorded a stage of 4.8 feet which
exceeded bankfull.
&&Local storm report, Sep 9, 8:44 PM MST, 47 minutes before
Preliminary Local Storm Report
National Weather Service Tucson AZ
844 PM MST Wed Sep 9 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0704 PM Tstm Wnd Gst 11 ENE Patagonia 31.59N 110.58W
09/09/2026 M78 MPH Santa Cruz AZ Public
Public weather station recorded wind gust of
78 mph.
&&Local storm report, Sep 9, 9:02 PM MST, 29 minutes before
Preliminary Local Storm Report
National Weather Service Tucson AZ
902 PM MST Wed Sep 9 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0645 PM Flash Flood 8 NE Huachuca City 31.70N 110.23W
09/09/2026 Cochise AZ Other Federal
Corrects previous flash flood report from 8
NE Huachuca City. River gauge on the
Babocomari River near Tombstone recorded a
stage of 4.8 feet which exceeded bankfull.
&&The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 5:22 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 38 min |
| Sep 9, 5:27 PM MST | Areal Flood Advisory | TWC | Cochise | 3 hr |
| Sep 9, 5:48 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 42 min |
| Sep 9, 6:03 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 24 min |
| Sep 9, 6:09 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 51 min |
| Sep 9, 6:22 PM MST | Flash Flood Warning | TWC | Cochise | 3 hr |
| Sep 9, 6:29 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Pima, Santa Cruz | 61 min |
| Sep 9, 6:37 PM MST | Areal Flood Advisory | TWC | Cochise | 3 hr |
| Sep 9, 6:42 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 48 min |
| Sep 9, 6:52 PM MST | Flash Flood Warning | TWC | Cochise | 3 hr |
| Sep 9, 7:23 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Pima | 43 min |
| Sep 9, 7:50 PM MST | Flash Flood Warning | TWC | Cochise | 3 hr |
| Sep 9, 9:13 PM MST | Flash Flood Warning | TWC | Cochise | 3 hr |
| Sep 9, 9:14 PM MST | Areal Flood Advisory | TWC | Cochise | 17 min |
| Sep 10, 8:39 AM MST | Areal Flood Advisory | TWC | Cochise | 6 hr |
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.