Alert archive / Arizona / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 41, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 12, 2026, 6:28 PM MST for Pima County, Pinal County, Arizona. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 12, 2026, 6:28 PM MST (01:28 UTC)
- Expired
- Jul 12, 2026, 7:13 PM MST
- In force
- 45 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Pima County, AZ, Pinal County, AZ
The radar
The Phoenix radar (KIWA), 76 km from the middle of the area, began a volume at 01:27 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 12, 3:03 PM MST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Phoenix, AZ (KPSR), launched 00:00Z, 1.5 hours before the alert went out and 89 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
- 351 J/kg
- Mixed-layer CIN
- -109 J/kg
- Mixed-layer LCL
- 2912 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
279
WUUS55 KTWC 130128
SVRTWC
AZC019-021-130230-
/O.NEW.KTWC.SV.W.0041.260713T0128Z-260713T0230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
628 PM MST Sun Jul 12 2026
The National Weather Service in Tucson has issued a
* Severe Thunderstorm Warning for...
North Central Pima County in southeastern Arizona...
Southwestern Pinal County in southeastern Arizona...
* Until 730 PM MST.
* At 628 PM MST, severe thunderstorms were located along a line from
9 miles north of San Isidro to near Eloy, moving west at 15 mph.
HAZARD...60 mph wind gusts and small hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Eloy, Santa Rosa, Chui-Chu, Covered Wells, Anegam, Cockleburr,
North Komelik, Kohatk, Palo Verde Stand, Ak Chin, Queens Well,
Cababi, Comobabi, South Comobabi, Sil Nakya, Santa Rosa Ranch, San
Luis - Sells District, Jack Rabbit and Mountain Village.
This includes the following highways...
Route 86 between mile markers 88 and 101...and near mile marker 130.
Route 87 near mile marker 116. Interstate 10 between mile markers 205
and 211.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. These storms are capable of producing damaging winds.
&&
LAT...LON 3268 11220 3268 11215 3272 11215 3272 11205
3276 11205 3278 11178 3276 11178 3276 11174
3273 11174 3274 11167 3279 11158 3279 11152
3242 11149 3201 11164 3207 11218
TIME...MOT...LOC 0128Z 95DEG 13KT 3214 11168 3256 11170 3272 11162
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CWR1 follow-up statement
811
WWUS55 KTWC 130213
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
713 PM MST Sun Jul 12 2026
AZC019-021-130223-
/O.CAN.KTWC.SV.W.0041.000000T0000Z-260713T0230Z/
Pima AZ-Pinal AZ-
713 PM MST Sun Jul 12 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR NORTH CENTRAL PIMA
AND SOUTHWESTERN PINAL COUNTIES...
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM MST for a
portion of South Central Arizona.
&&
LAT...LON 3268 11220 3268 11215 3272 11215 3272 11205
3276 11205 3278 11178 3276 11178 3276 11174
3273 11174 3274 11167 3279 11158 3279 11152
3242 11149 3201 11164 3207 11218
TIME...MOT...LOC 0128Z 95DEG 13KT 3214 11169 3256 11170 3272 11162
$$
CWRWhat forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jul 12, 12:05 PM MST, 6 hours 23 minutes earlier. Its key messages:
- Scattered thunderstorms are expected this afternoon and evening, bringing a threat of strong to severe wind gusts with blowing dust and periods of heavy rainfall. An isolated flash flooding threat will also come with this activity. Greater coverage of thunderstorms will generally be through Pinal, Pima, and Santa Cruz counties with lowest coverage in eastern Cochise county.
- Thunderstorm chances will continue daily through the upcoming week with day to day variability in location and severity. High temperatures are forecast to sit around to just below normal Monday onwards.
Area forecast discussion, Jul 12, 12:05 PM MST, 6 hours 23 minutes before
Area Forecast Discussion National Weather Service Tucson AZ 1205 PM MST Sun Jul 12 2026 .KEY MESSAGES... - Scattered thunderstorms are expected this afternoon and evening, bringing a threat of strong to severe wind gusts with blowing dust and periods of heavy rainfall. An isolated flash flooding threat will also come with this activity. Greater coverage of thunderstorms will generally be through Pinal, Pima, and Santa Cruz counties with lowest coverage in eastern Cochise county. - Thunderstorm chances will continue daily through the upcoming week with day to day variability in location and severity. High temperatures are forecast to sit around to just below normal Monday onwards. && .SYNOPSIS... Thunderstorm activity will return this afternoon and evening, bringing a threat of strong to severe wind gusts, blowing dust, and flash flooding. Thunderstorm chances will be greater in Pinal, Pima, and Santa Cruz counties with more isolated activity in eastern locations closer to the New Mexico border. Thunderstorm chances will continue through the upcoming week across southeastern Arizona with day to day variability in location and severity. && .DISCUSSION... A field of cumulus clouds is developing areas Tucson eastward with a few small thunderstorms are beginning to develop along the AZ/NM border. Surface dewpoints are now in the 50s out east gradually increasing into the low 60s in western Pima county with satellite derived PWATs around 1.4 to 1.6 inches. High PWAT is also shown in the 12Z upper air sounding launched in Phoenix with a value of 1.84 inches. Severe, organized thunderstorms are expected again this afternoon and evening. Forecast soundings continue to depict inverted-V soundings producing DCAPE between 1500-1800 J/kg. This instability combined with up to 20-25 kts of effective shear will be conducive to severe, organized thunderstorms. The 12Z HREF highlights an area from Tucson westward up to Phoenix of 10-30% chance for greater than 50 knot (58 mph) winds this afternoon into the evening. The 12Z issuance of the day 1 outlook produced by SPC has expanded the slight risk westward to now include all of the Tohono O'odham Nation. WPC maintains our area to be in marginal risk for excessive rainfall. Slower storm motion of 10 to 15 mph and ample moisture will preclude a widespread flash flooding threat, heavy rainfall rates of 1 to 2 inches per hour are likely with any thunderstorm. Storms will begin to initiate around 1 to 2 pm this afternoon in Cochise/ eastern Pima county gradually pushing westward as the evening progresses. Tomorrow, ample moisture will remain in place as the high pressure center oscillates around the Four Corners. The ingredients for severe weather are not as pronounced as they have been the past few days but still present for tomorrow. Inverted-V soundings are producing DCAPE around 1100-1300 J/kg. 12Z HREF has a 50-70% chance for 30 knot (35 mph) wind gusts therefore strong to severe winds will be a concern. SPC has our area in general risk for severe thunderstorms. Suitable moisture in place will also lead to localized flash flooding with stronger thunderstorms with rainfall rates of 0.5 to 1.5 inches per hour possible. WPC has our are in marginal risk for excessive rainfall. Healthy precipitable water values should remain in the area as mean flow continues out of the east, though shear should come down a bit by Tuesday as wind speeds aloft decrease with the ridge becoming further displaced to the northeast. Daily chances for showers and thunderstorms will continue through the week with day to day variability in locations and severity. Though there is some discrepancy in timing, ensemble models continue to show signs of an easterly wave arriving mid to late in the week, which would enhance thunderstorm chances. This wave along with the northern displacement of the ridge would bring high temperatures down below normal, with best chances of lower high temperatures currently falling Friday through the coming weekend. && .AVIATION...Valid through 14/00Z. Thunderstorm activity expected to develop after 12/20Z, especially near a KAVQ-KTUS-KOLS line. Scattered thunderstorms will then move west through the afternoon and evening. Severe wind gusts and blowing dust may accompany any thunderstorm along with heavy rain and mountain obscurations. Thunderstorm activity will decrease in coverage after 13/03Z with isolated light SHRA/-TSRA into the overnight hours. Surface winds in eastern areas including KSAD- KDUG continue east/southeast after increasing to 9-14 kts with gusts to 20 kts aft 13/15Z while winds elsewhere generally remain light and under 10 kts outside of thunderstorms. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER... Scattered thunderstorms expected to redevelop this afternoon, especially through Pinal, Pima, and Santa Cruz counties. Isolated activity in eastern areas. Any thunderstorm will likely bring strong and erratic winds with a few becoming severe. Winds outside of thunderstorms today will become east to southeast 10-15 mph with gusts to 22 mph in Graham, Greenlee, and Cochise counties, with more light and variable winds to the west. With moisture on the rise today, minimum relative humidities will be above 20-30 percent across the area and increasing further in the coming several days. Daily chances for showers and thunderstorms are forecast through the upcoming week with day to day variability. && .TWC WATCHES/WARNINGS/ADVISORIES... Blowing Dust Advisory from 3 PM this afternoon to 7 PM MST this evening for AZZ501>505. && Malarkey/ Edwards Visit us on Facebook, X, YouTube, and at weather.gov/Tucson
In the hours before
Local storm report, Jul 12, 5:29 PM MST, 59 minutes before
Preliminary Local Storm Report
National Weather Service Tucson AZ
529 PM MST Sun Jul 12 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0515 PM Dust Storm 5 N Avra Valley 32.51N 111.33W
07/12/2026 Pinal AZ Mesonet
1/4 mile visibility due to dust.
&&
KLMLocal storm report, Jul 12, 5:37 PM MST, 51 minutes before
Preliminary Local Storm Report
National Weather Service Tucson AZ
537 PM MST Sun Jul 12 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0435 PM Tstm Wnd Dmg 10 NE Tucson 32.29N 110.77W
07/12/2026 Pima AZ Public
Tree knocked down.
&&
KLMLocal storm report, Jul 12, 5:42 PM MST, 46 minutes before
Preliminary Local Storm Report
National Weather Service Tucson AZ
542 PM MST Sun Jul 12 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0526 PM Flash Flood 8 SSW Tucson 32.09N 110.96W
07/12/2026 Pima AZ Fire Dept/Rescue
Swift water rescue at S Nogales Highway and
E Aerospace parkway.
&&
KLMLocal storm report, Jul 12, 5:53 PM MST, 35 minutes before
Preliminary Local Storm Report
National Weather Service Tucson AZ
553 PM MST Sun Jul 12 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0534 PM Flash Flood 9 SSW Tucson 32.08N 110.96W
07/12/2026 Pima AZ Fire Dept/Rescue
Swift water rescue near S Nogales Highway
and S Old Nogales Highway.
&&
KLMLocal storm report, Jul 12, 5:54 PM MST, 34 minutes before
Preliminary Local Storm Report
National Weather Service Tucson AZ
554 PM MST Sun Jul 12 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0508 PM Tstm Wnd Gst 9 NNE Tucson 32.31N 110.82W
07/12/2026 M67 MPH Pima AZ Mesonet
Mesonet station QSGA3 Saguaro.
&&Local storm report, Jul 12, 6:24 PM MST, 4 minutes before
Preliminary Local Storm Report
National Weather Service Tucson AZ
624 PM MST Sun Jul 12 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0530 PM Tstm Wnd Gst 14 W Avra Valley 32.43N 111.55W
07/12/2026 M68 MPH Pima AZ Public
Personal weather station gusted to 68 mph.
0508 PM Non-Tstm Wnd Gst 9 NNE Tucson 32.31N 110.82W
07/12/2026 M67 MPH Pima AZ Mesonet
Mesonet station QSGA3 Saguaro.
&&The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 5:08 PM MST | Severe Thunderstorm Warning | TWC | Pima | 52 min |
| Jul 12, 5:11 PM MST | Dust Storm Warning | TWC | Pima, Pinal | 79 min |
| Jul 12, 5:11 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 49 min |
| Jul 12, 5:20 PM MST | Dust Storm Warning | TWC | Pima | 85 min |
| Jul 12, 5:23 PM MST | Flash Flood Warning | TWC | Pima | 3 hr |
| Jul 12, 5:41 PM MST | Flash Flood Warning | TWC | Pima | 3 hr |
| Jul 12, 5:47 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 43 min |
| Jul 12, 6:01 PM MST | Flash Flood Warning | TWC | Pima | 3 hr |
| Jul 12, 6:18 PM MST | Dust Storm Warning | TWC | Pima, Pinal | 57 min |
| Jul 12, 6:24 PM MST | Areal Flood Advisory | TWC | Santa Cruz | 74 min |
| Jul 12, 6:50 PM MST | Flash Flood Warning | TWC | Pima | 2 hr |
| Jul 12, 7:22 PM MST | Flash Flood Warning | TWC | Pima | 2 hr |
| Jul 12, 7:38 PM MST | Flash Flood Warning | TWC | Pima, Pinal | 3 hr |
| Jul 12, 8:29 PM MST | Areal Flood Advisory | TWC | Pima, Pinal | 6 hr |
| Jul 12, 11:40 PM MST | Flash Flood Warning | TWC | Cochise | 3 hr |
| Jul 13, 12:01 AM MST | Severe Thunderstorm Warning | TWC | Cochise | 36 min |
| Jul 13, 1:55 PM MST | Areal Flood Advisory | TWC | Cochise | 2 hr |
| Jul 13, 3:42 PM MST | Flash Flood Warning | TWC | Pima | 3 hr |
| Jul 13, 3:51 PM MST | Flash Flood Warning | TWC | Pima | 3 hr |
| Jul 13, 4:47 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 43 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2026Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.