Alert archive / Arizona / Flash Flood Warnings in 2017
Flash Flood Warning 62, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Aug 13, 2017, 1:33 AM MST for Pima County, Arizona. It was in force for 117 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 13, 2017, 1:33 AM MST (08:33 UTC)
- Expired
- Aug 13, 2017, 3:30 AM MST
- In force
- 117 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Pima County, AZ
The radar
The Tucson radar (KEMX), 46 km from the middle of the area, began a volume at 08:32 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 00:00Z, 8.6 hours before the alert went out and 16 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
- 397 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 2643 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
800 WGUS55 KTWC 130833 FFWTWC AZC019-131030- /O.NEW.KTWC.FF.W.0062.170813T0833Z-170813T1030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Tucson AZ 133 AM MST SUN AUG 13 2017 The National Weather Service in Tucson has issued a * Flash Flood Warning for... Northeastern Pima County in southeastern Arizona... * Until 330 AM MST * At 131 AM MST, Doppler radar indicated thunderstorms producing heavy rain across the Tucson Metro area. The thunderstorms have shown little movement. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Tucson, Oro Valley, Marana, Sahuarita, Tortolita, Summit, Tucson Estates, Avra Valley, Drexel-Alvernon, Valencia West, Flowing Wells, Littletown, Drexel Heights, Casas Adobes, Tanque Verde, Three Points, South Tucson, Vail, Mount Lemmon/Summerhaven and Ryan Field. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 3250 11048 3195 11046 3197 11117 3249 11138 $$ Zell
1 follow-up statement
855 WGUS75 KTWC 130930 FFSTWC Flash Flood Statement National Weather Service Tucson AZ 230 AM MST SUN AUG 13 2017 AZC019-131030- /O.CON.KTWC.FF.W.0062.000000T0000Z-170813T1030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pima- 230 AM MST SUN AUG 13 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 AM MST FOR NORTHEASTERN PIMA COUNTY... At 220 AM MST, Doppler radar indicated thunderstorms producing heavy rainfall across much of the Tucson Metro area. Numerous rainfall gauges on the southeast side are reporting 0.50" of rainfall in the last 15 to 30 minutes, with rainfall totals in the last hour over 1.0 inch. Rainfall gauges on the north and northwest side are also reporting between 0.35 and 0.50 inches of rainfall in the last 30 minutes. Thunderstorms continue to develop and remain nearly stationary over much of the greater Tucson metro area. Normally dry washes and low water crossings may be inundated in the following locations... Tucson, Oro Valley, Marana, Sahuarita, Tortolita, Summit, Tucson Estates, Avra Valley, Drexel-Alvernon, Valencia West, Flowing Wells, Littletown, Drexel Heights, Casas Adobes, Tanque Verde, Three Points, South Tucson, Vail, Mount Lemmon/Summerhaven and Ryan Field. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 3250 11048 3195 11046 3197 11117 3249 11138 $$ Zell
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 5:38 PM MST | Special Weather Statement | TWC | Cochise | 52 min |
| Aug 12, 5:55 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 35 min |
| Aug 12, 6:04 PM MST | Special Weather Statement | TWC | Cochise | 26 min |
| Aug 12, 6:10 PM MST | Areal Flood Advisory | TWC | Cochise | 2 hr |
| Aug 12, 6:11 PM MST | Special Weather Statement | TWC | Pima | 34 min |
| Aug 12, 6:33 PM MST | Special Weather Statement | TWC | Cochise | 27 min |
| Aug 12, 6:50 PM MST | Areal Flood Advisory | TWC | Cochise | 85 min |
| Aug 12, 6:50 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Pima | 40 min |
| Aug 12, 10:18 PM MST | Areal Flood Advisory | TWC | Cochise | 3 hr |
| Aug 12, 11:08 PM MST | Areal Flood Advisory | TWC | Graham | 2 hr |
| Aug 13, 12:11 AM MST | Areal Flood Advisory | TWC | Graham, Pinal | 2 hr |
| Aug 13, 12:57 AM MST | Flash Flood Warning | TWC | Pinal | 2 hr |
| Aug 13, 1:06 AM MST | Areal Flood Advisory | TWC | Pima, Santa Cruz | 3 hr |
| Aug 13, 1:07 AM MST | Areal Flood Advisory | TWC | Pinal | 3 hr |
| Aug 13, 2:02 AM MST | Flash Flood Warning | TWC | Pinal | 118 min |
| Aug 13, 3:28 AM MST | Flash Flood Warning | TWC | Pima | 3 hr |
| Aug 13, 8:10 AM MST | Areal Flood Warning | TWC | Pinal | 9 hr |
| Aug 13, 12:16 PM MST | Special Weather Statement | TWC | Santa Cruz | 29 min |
| Aug 13, 12:28 PM MST | Special Weather Statement | TWC | Cochise | 47 min |
| Aug 13, 12:46 PM MST | Special Weather Statement | TWC | Santa Cruz | 29 min |
| Aug 13, 12:55 PM MST | Special Weather Statement | TWC | Santa Cruz | 35 min |
| Aug 13, 1:15 PM MST | Special Weather Statement | TWC | Cochise | 45 min |
| Aug 13, 2:15 PM MST | Severe Thunderstorm Warning | TWC | Pima | 30 min |
| Aug 13, 3:18 PM MST | Special Weather Statement | TWC | Santa Cruz | 27 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.