Alert archive / Arizona / Flash Flood Warnings in 2017
Flash Flood Warning 34, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Jul 24, 2017, 5:29 PM MST for Graham County, Arizona. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 24, 2017, 5:29 PM MST (00:29 UTC)
- Expired
- Jul 24, 2017, 7:30 PM MST
- In force
- 2 hr
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Graham County, AZ
The radar
The Tucson radar (KEMX), 119 km from the middle of the area, began a volume at 00:31 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, 0.5 hours before the alert went out and 118 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
- 494 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 1291 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
The text
As transmitted.
826 WGUS55 KTWC 250029 FFWTWC AZC009-250230- /O.NEW.KTWC.FF.W.0034.170725T0029Z-170725T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Tucson AZ 529 PM MST MON JUL 24 2017 The National Weather Service in Tucson has issued a * Flash Flood Warning for... South central Graham County in southeastern Arizona... * Until 730 PM MST * At 528 PM MST, Doppler radar and automated rain gauges indicated thunderstorms producing rain across Mt Graham including the Frye fire burn area. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Mount Graham, Fort Grant and Frye Mesa Dam. Areas affected include the Frye Fire Burn Scar and locations below it, namely Ash Creek, Frye Creek and Swift Trail Rd (Highway 366). This includes the following streams and drainages...Noon Creek... Stockton Wash...Frye Creek...Jacobson Creek...Twilight Creek...Gibson Creek...Ash Creek and Marijilda Wash. PRECAUTIONARY/PREPAREDNESS ACTIONS... This warning includes areas in or below a wildfire burn scar. Rainfall on burned areas can cause increased flash flooding, debris flows, mud slides, and rock slides. Take action now to protect yourself from the effects of flash flooding and remember, Turn Around, Don't Drown! && LAT...LON 3281 10976 3262 10971 3261 10999 3282 10997 $$ Meyer
1 follow-up statement
467 WGUS75 KTWC 250221 FFSTWC Flash Flood Statement National Weather Service Tucson AZ 721 PM MST MON JUL 24 2017 AZC009-250230- /O.EXP.KTWC.FF.W.0034.000000T0000Z-170725T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Graham- 721 PM MST MON JUL 24 2017 ...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL GRAHAM COUNTY WILL EXPIRE AT 730 PM MST... Only light showers remain in the Mt Graham area. Flash Flooding is no longer expected to pose a threat, however heavy flow will continue in streams and washes. Please continue to heed any remaining road closures. LAT...LON 3281 10976 3262 10971 3261 10999 3282 10997 $$ Meyer
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 5:47 PM MST | Areal Flood Advisory | TWC | Pima | 118 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.