Alert archive / Arizona / Areal Flood Advisories in 2021

Areal Flood Advisory 166, NWS Tucson, AZ

August 14, 2021Pinal County, Arizona

NWS Tucson, AZ issued this areal flood advisory at Aug 14, 2021, 1:53 PM MST for Pinal County, Arizona. It was in force for 112 min.

The area

The counties it named.

The facts

Issued: Aug 14, 2021, 1:53 PM MST (20:53 UTC)
Expired: Aug 14, 2021, 3:45 PM MST
In force: 112 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon

County Pinal County, AZ

The radar

The Phoenix radar (KIWA), 52 km from the middle of the area, began a volume at 20:53 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 12:00Z, 8.9 hours before the alert went out and 82 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: 102 J/kg
Mixed-layer CIN: -277 J/kg
Mixed-layer LCL: 1127 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 161 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 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 14, 10:35 AM MST, 3 hours 18 minutes earlier.

Area forecast discussion, Aug 14, 10:35 AM MST, 3 hours 18 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
Aug 13, 5:06 PM MST	Special Weather Statement	TWC	Cochise	39 min
Aug 13, 5:07 PM MST	Flash Flood Warning Considerable damage threat	TWC	Graham, Greenlee	3 hr
Aug 13, 5:11 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	3 hr
Aug 13, 5:48 PM MST	Special Weather Statement	TWC	Cochise	42 min
Aug 13, 6:05 PM MST	Severe Thunderstorm Warning	TWC	Cochise	40 min
Aug 13, 6:08 PM MST	Special Weather Statement	TWC		37 min
Aug 13, 6:12 PM MST	Special Weather Statement	TWC		48 min
Aug 13, 6:26 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise, Graham	3 hr
Aug 13, 6:30 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	3 hr
Aug 13, 6:35 PM MST	Areal Flood Advisory	TWC	Pima	115 min
Aug 13, 6:40 PM MST	Severe Thunderstorm Warning	TWC	Cochise, Pima, Santa Cruz	50 min
Aug 13, 7:04 PM MST	Special Weather Statement	TWC	Cochise	41 min
Aug 13, 7:22 PM MST	Special Weather Statement	TWC	Santa Cruz	38 min
Aug 13, 7:55 PM MST	Special Weather Statement	TWC	Santa Cruz	65 min
Aug 13, 11:49 PM MST	Dust Storm Advisory	TWC	Pima, Pinal	56 min
Aug 14, 12:54 AM MST	Areal Flood Advisory	TWC	Pima, Pinal	3 hr
Aug 14, 1:02 AM MST	Areal Flood Advisory	TWC	Pinal	3 hr
Aug 14, 1:58 AM MST	Special Weather Statement	TWC		62 min
Aug 14, 4:11 AM MST	Areal Flood Advisory	TWC	Pima	4 hr
Aug 14, 5:06 AM MST	Flash Flood Warning	TWC	Pima	3 hr
Aug 14, 5:35 AM MST	Areal Flood Advisory	TWC	Pima	3 hr
Aug 14, 2:19 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pinal	116 min
Aug 14, 2:53 PM MST	Areal Flood Advisory	TWC	Santa Cruz	3 hr
Aug 14, 3:19 PM MST	Areal Flood Advisory	TWC	Pima	3 hr
Aug 14, 3:23 PM MST	Areal Flood Advisory	TWC	Pima	3 hr
Aug 14, 3:23 PM MST	Flash Flood Warning	TWC	Santa Cruz	2 hr
Aug 14, 3:25 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	3 hr
Aug 14, 3:28 PM MST	Areal Flood Advisory	TWC	Pinal	3 hr
Aug 14, 3:56 PM MST	Special Weather Statement	TWC	Cochise	49 min
Aug 14, 4:01 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	3 hr
Aug 14, 4:05 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	115 min
Aug 14, 4:18 PM MST	Areal Flood Advisory	TWC	Cochise	3 hr
Aug 14, 4:36 PM MST	Areal Flood Advisory	TWC	Pima	114 min
Aug 14, 4:40 PM MST	Areal Flood Advisory	TWC	Pima	2 hr

Nearby

Areal Flood Advisories in Arizona, 2021 Every 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.