Alert archive / Arizona / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 74, NWS Tucson, AZ

July 28, 2026Cochise County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 28, 2026, 1:26 AM MST for Cochise County, Arizona. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 28, 2026, 1:26 AM MST (08:26 UTC)
Expired: Jul 28, 2026, 2:15 AM MST
In force: 49 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Cochise County, AZ

The radar

The Tucson radar (KEMX), 83 km from the middle of the area, began a volume at 08:28 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.

The nearest sounding before it

Santa Teresa, NM (KEPZ), launched 00:00Z, 8.4 hours before the alert went out and 288 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 34 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 4010 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -6 m²/s²
0-3 km storm-relative helicity: -30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What 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 28, 1:00 AM MST, 26 minutes earlier.

Area forecast discussion, Jul 28, 1:00 AM MST, 26 minutes before

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In the hours before

Local storm report, Jul 27, 10:05 PM MST, 3 hours 21 minutes before

Preliminary Local Storm Report
National Weather Service Tucson AZ
1005 PM MST Mon Jul 27 2026

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

1003 PM     Rain             3 N Bisbee              31.44N 109.92W
07/27/2026  M1.46 Inch       Cochise            AZ   Public

            Rain gauge measured 1.46 inches of rainfall
            in 30 minutes in Bisbee.

&&

DVS

Local storm report, Jul 27, 10:11 PM MST, 3 hours 15 minutes before

Preliminary Local Storm Report
National Weather Service Tucson AZ
1011 PM MST Mon Jul 27 2026

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

1005 PM     Rain             11 SE Sierra Vista      31.45N 110.18W
07/27/2026  M0.95 Inch       Cochise            AZ   Trained Spotter

            Spotter reported 0.95 inches of rain in 20
            minutes.

&&

AH

Local storm report, Jul 27, 10:15 PM MST, 3 hours 11 minutes before

Preliminary Local Storm Report
National Weather Service Tucson AZ
1015 PM MST Mon Jul 27 2026

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

0956 PM     Rain             4 NNW Bisbee            31.46N 109.94W
07/27/2026  M1.18 Inch       Cochise            AZ   Mesonet

            Mesonet station BTAA3 Bisbee Tunnel.

&&

DVS

Local storm report, Jul 27, 10:34 PM MST, 2 hours 52 minutes before

Preliminary Local Storm Report
National Weather Service Tucson AZ
1034 PM MST Mon Jul 27 2026

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

1033 PM     Rain             12 SE Sierra Vista      31.44N 110.18W
07/27/2026  M3.00 Inch       Cochise            AZ   Trained Spotter

            Trained Spotter reported 3 inches over the
            past hour ending at 1030 PM MST.

&&

DVS

Local storm report, Jul 28, 1:10 AM MST, 16 minutes before

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Local storm report, Jul 28, 1:11 AM MST, 15 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 6:09 PM MST	Areal Flood Advisory	TWC	Pima	3 hr
Jul 27, 6:39 PM MST	Severe Thunderstorm Warning	TWC	Pima	51 min
Jul 27, 6:40 PM MST	Flash Flood Warning	TWC	Pima	2 hr
Jul 27, 8:39 PM MST	Flood Watch	TWC	Cochise, Graham, Pima, Santa Cruz	8 hr
Jul 27, 9:33 PM MST	Severe Thunderstorm Warning	TWC	Cochise	42 min
Jul 27, 9:57 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	3 hr
Jul 27, 10:11 PM MST	Severe Thunderstorm Warning	TWC	Cochise	49 min
Jul 27, 10:31 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	2 hr
Jul 27, 11:02 PM MST	Flash Flood Warning	TWC	Santa Cruz	106 min
Jul 27, 11:33 PM MST	Severe Thunderstorm Warning	TWC	Santa Cruz	42 min
Jul 28, 12:59 AM MST	Severe Thunderstorm Warning	TWC	Graham	46 min
Jul 28, 2:18 AM MST	Severe Thunderstorm Warning	TWC	Pima	42 min
Jul 28, 7:54 AM MST	Areal Flood Advisory	TWC	Cochise	3 hr
Jul 28, 11:22 AM MST	Areal Flood Warning	TWC	Cochise	6 hr
Jul 28, 1:33 PM MST	Severe Thunderstorm Warning	TWC	Greenlee	42 min
Jul 28, 2:10 PM MST	Flash Flood Warning	TWC	Greenlee	3 hr

Nearby

Severe Thunderstorm Warnings in Arizona, 2026 Every 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.