Alert archive / Arizona / Flash Flood Warnings in 2017
Flash Flood Warning 67, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Aug 23, 2017, 4:34 PM MST for Pinal County, Arizona. It was in force for 116 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
- Aug 23, 2017, 4:34 PM MST (23:34 UTC)
- Expired
- Aug 23, 2017, 6:30 PM MST
- In force
- 116 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Pinal County, AZ
The radar
The Tucson radar (KEMX), 82 km from the middle of the area, began a volume at 23:35 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
Tuscon, AZ (KDMA), launched 12:00Z, 11.6 hours before the alert went out and 52 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
- 906 J/kg
- Mixed-layer CIN
- -195 J/kg
- Mixed-layer LCL
- 2087 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
910 WGUS55 KTWC 232334 FFWTWC AZC021-240130- /O.NEW.KTWC.FF.W.0067.170823T2334Z-170824T0130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Tucson AZ 434 PM MST WED AUG 23 2017 The National Weather Service in Tucson has issued a * Flash Flood Warning for... Southeastern Pinal County in southeastern Arizona... * Until 630 PM MST * At 433 PM MST, Doppler radar indicated another strong to severe thunderstorm producing heavy rain near and south of Oracle. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Oracle, San Manuel, Campo Bonito and Biosphere 2. This includes the following streams and drainages...Cañada del Oro and Big Wash. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive runoff from heavy rainfall will cause flooding of washes and streams, urban areas, highways, streets and underpasses as well as other drainage areas and low lying spots. && LAT...LON 3269 11067 3253 11070 3253 11089 3267 11088 $$ Meyer
2 follow-up statements
257 WGUS75 KTWC 232354 FFSTWC Flash Flood Statement National Weather Service Tucson AZ 454 PM MST WED AUG 23 2017 AZC021-240130- /O.CON.KTWC.FF.W.0067.000000T0000Z-170824T0130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pinal- 454 PM MST WED AUG 23 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM MST FOR SOUTHEASTERN PINAL COUNTY... At 452 PM MST, Doppler radar and automated rain gauges indicated strong thunderstorms producing heavy rain near and south of Oracle. This is the second shot of heavy rain for the area this afternoon, and rainfall amounts in excess of 2 inches will cause flash flooding. Normally dry washes and low water crossings may be inundated in the following locations... Oracle, San Manuel, Campo Bonito, Saddlebrooke and Biosphere 2. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive runoff from heavy rainfall will cause flooding of washes and streams, urban areas, highways, and roads as well as other drainage areas and low lying spots. && LAT...LON 3269 11067 3253 11070 3253 11089 3267 11088 $$ Meyer
097 WGUS75 KTWC 240122 FFSTWC Flash Flood Statement National Weather Service Tucson AZ 622 PM MST WED AUG 23 2017 AZC021-240131- /O.EXP.KTWC.FF.W.0067.000000T0000Z-170824T0130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pinal- 622 PM MST WED AUG 23 2017 ...THE FLASH FLOOD WARNING FOR SOUTHEASTERN PINAL COUNTY WILL EXPIRE AT 630 PM MST... The heavy rain has in the Oracle, Campo Bonito and Saddlebrooke areas. However, heavy flow will continue in normally dry streambeds and washes into the evening hours. Please continue to heed any road closures. LAT...LON 3269 11067 3253 11070 3253 11089 3267 11088 $$ Meyer
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 9:58 AM MST | Blowing Dust Advisory | TWC | Pima, Pinal | 9 hr |
| Aug 23, 11:58 AM MST | Special Weather Statement | TWC | Santa Cruz | 47 min |
| Aug 23, 12:38 PM MST | Areal Flood Advisory | TWC | Cochise, Santa Cruz | 112 min |
| Aug 23, 1:09 PM MST | Special Weather Statement | TWC | Santa Cruz | 51 min |
| Aug 23, 2:41 PM MST | Special Weather Statement | TWC | Santa Cruz | 34 min |
| Aug 23, 3:21 PM MST | Areal Flood Advisory | TWC | Pima | 3 hr |
| Aug 23, 3:21 PM MST | Severe Thunderstorm Warning | TWC | Pima | 39 min |
| Aug 23, 3:33 PM MST | Flash Flood Warning | TWC | Pima, Santa Cruz | 117 min |
| Aug 23, 3:33 PM MST | Special Weather Statement | TWC | Cochise | 57 min |
| Aug 23, 3:45 PM MST | Areal Flood Advisory | TWC | Santa Cruz | 90 min |
| Aug 23, 3:51 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 39 min |
| Aug 23, 4:02 PM MST | Severe Thunderstorm Warning | TWC | Pima | 43 min |
| Aug 23, 4:11 PM MST | Flash Flood Warning | TWC | Pima | 2 hr |
| Aug 23, 4:12 PM MST | Areal Flood Advisory | TWC | Pinal | 2 hr |
| Aug 23, 4:28 PM MST | Dust Storm Warning | TWC | Pima, Pinal | 3 hr |
| Aug 23, 4:29 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 46 min |
Nearby
Flash Flood Warnings in Arizona, 2017Every flash flood warning in 2017
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.