Alert archive / Arizona / Areal Flood Advisories in 2021
Areal Flood Advisory 210, NWS Tucson, AZ
NWS Tucson, AZ issued this areal flood advisory at Aug 31, 2021, 3:14 PM MST for Pima County, Pinal County, Arizona. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Aug 31, 2021, 3:14 PM MST (22:14 UTC)
- Expired
- Aug 31, 2021, 8:15 PM MST
- In force
- 5 hr
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
Counties Pima County, AZ, Pinal County, AZ
The radar
The Phoenix radar (KIWA), 88 km from the middle of the area, began a volume at 22:15 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
Yuma Prvg Ground, AZ (K1Y7), launched 12:00Z, 10.2 hours before the alert went out and 266 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
- 302 J/kg
- Mixed-layer CIN
- -242 J/kg
- Mixed-layer LCL
- 1872 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
What forecasters said that day
The local office's own words before this areal flood advisory 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 areal flood advisory went out at Aug 31, 10:28 AM MST, 4 hours 46 minutes earlier.
Area forecast discussion, Aug 31, 10:28 AM MST, 4 hours 46 minutes before
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</html>The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 5:18 PM MST | Special Weather Statement | TWC | 42 min | |
| Aug 30, 5:46 PM MST | Flash Flood Warning | TWC | Pima | 3 hr |
| Aug 30, 5:59 PM MST | Special Weather Statement | TWC | Pinal | 46 min |
| Aug 30, 6:10 PM MST | Special Weather Statement | TWC | Pima | 35 min |
| Aug 30, 6:19 PM MST | Flash Flood Warning | TWC | Pima, Pinal | 3 hr |
| Aug 31, 1:59 AM MST | Areal Flood Advisory | TWC | Pima | 3 hr |
| Aug 31, 2:47 PM MST | Areal Flood Advisory | TWC | Pima, Pinal | 7 hr |
| Aug 31, 4:00 PM MST | Special Weather Statement | TWC | Greenlee | 45 min |
| Aug 31, 4:23 PM MST | Areal Flood Advisory | TWC | Graham, Greenlee | 3 hr |
| Aug 31, 4:36 PM MST | Flash Flood Warning | TWC | Cochise | 3 hr |
| Aug 31, 4:41 PM MST | Areal Flood Advisory | TWC | Cochise | 2 hr |
Nearby
Areal Flood Advisories in Arizona, 2021Every areal flood advisory in 2021
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.