Alert archive / Arizona / Flash Flood Warnings in 2026
Flash Flood Warning 46, NWS Phoenix, AZ
NWS Phoenix, AZ issued this flash flood warning at Aug 23, 2026, 11:11 PM MST for Maricopa County, Pinal County, Arizona. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 23, 2026, 11:11 PM MST (06:11 UTC)
- Expired
- Aug 24, 2026, 2:15 AM MST
- In force
- 3 hr
- Issued by
- NWS Phoenix, AZ
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
Counties Maricopa County, AZ, Pinal County, AZ
The radar
The Phoenix radar (KIWA), 29 km from the middle of the area, began a volume at 06:12 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
Phoenix, AZ (KPSR), launched 00:00Z, 6.2 hours before the alert went out and 34 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
- 309 J/kg
- Mixed-layer CIN
- -169 J/kg
- Mixed-layer LCL
- 3337 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 5:07 PM MST | Special Weather Statement | PSR | 23 min | |
| Aug 23, 5:35 PM MST | Special Weather Statement | PSR | 40 min | |
| Aug 23, 7:24 PM MST | Special Weather Statement | PSR | 21 min | |
| Aug 23, 7:29 PM MST | Severe Thunderstorm Warning | PSR | La Paz | 31 min |
| Aug 23, 7:41 PM MST | Dust Storm Warning | PSR | Maricopa, Pinal | 49 min |
| Aug 23, 7:51 PM MST | Areal Flood Advisory | PSR | Maricopa | 3 hr |
| Aug 23, 8:03 PM MST | Dust Storm Warning | PSR | Maricopa, Pinal | 42 min |
| Aug 23, 8:23 PM MST | Dust Storm Advisory | PSR | Maricopa, Pinal | 52 min |
| Aug 23, 8:40 PM MST | Dust Storm Advisory | PSR | Maricopa, Pinal | 50 min |
| Aug 23, 8:47 PM MST | Special Weather Statement | PSR | Pinal | 118 min |
| Aug 23, 8:51 PM MST | Dust Storm Warning | PSR | Maricopa, Pinal | 39 min |
| Aug 23, 9:14 PM MST | Dust Storm Advisory | PSR | Maricopa | 46 min |
| Aug 23, 9:23 PM MST | Dust Storm Advisory | PSR | Maricopa | 67 min |
| Aug 23, 9:38 PM MST | Dust Storm Advisory | PSR | Maricopa | 67 min |
| Aug 23, 9:45 PM MST | Dust Storm Advisory | PSR | Maricopa | 45 min |
| Aug 23, 10:03 PM MST | Special Weather Statement | PSR | 27 min | |
| Aug 23, 10:12 PM MST | Dust Storm Advisory | PSR | Maricopa | 48 min |
| Aug 23, 10:47 PM MST | Special Weather Statement | PSR | 13 min | |
| Aug 23, 11:19 PM MST | Special Weather Statement | PSR | Maricopa | 11 min |
| Aug 24, 12:39 AM MST | Special Weather Statement | PSR | La Paz | 36 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.