Alert archive / Arizona / Flash Flood Warnings in 2017

Flash Flood Warning 13, NWS Tucson, AZ

July 17, 2017Pima County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jul 17, 2017, 3:17 PM MST for Pima County, Arizona. It was in force for 118 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
Jul 17, 2017, 3:17 PM MST (22:17 UTC)
Expired
Jul 17, 2017, 5:15 PM MST
In force
118 min
Issued by
NWS Tucson, AZ
Area
Storm-based polygon
Flood severity
None

County Pima County, AZ

The radar

The Phoenix radar (KIWA), 148 km from the middle of the area, began a volume at 22:17 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, 10.3 hours before the alert went out and 127 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-pSkew-T log-p diagram, Tuscon, AZ at 12:00Z on 2017-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 384 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 12:00Z on 2017-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -68 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
384 J/kg
Mixed-layer CIN
-236 J/kg
Mixed-layer LCL
1180 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-68 m²/s²
0-3 km storm-relative helicity
-51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

314 
WGUS55 KTWC 172217
FFWTWC
AZC019-180015-
/O.NEW.KTWC.FF.W.0013.170717T2217Z-170718T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tucson AZ
317 PM MST MON JUL 17 2017

The National Weather Service in Tucson has issued a

* Flash Flood Warning for...
  Central Pima County in southeastern Arizona...

* Until 515 PM MST

* At 315 PM MST, Doppler radar indicated thunderstorms producing 
  heavy rain near and east of Pisinimo, or about 10 to 15 miles west 
  and northwest of Sells. Storms were nearly stationary. Flash 
  flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Santa Cruz, Pisinimo, and Kupk. 

This includes the following streams and drainages...San Simon Wash...
Murk Kui Wash...Sells Wash...Sikul Himatk Wash...Vamori Wash...San
Luis Wash...Hali Murk Wash...Gu Oidak Wash...Pisinimo Wash and Gu Vo
Wash.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of washes
and streams, country roads, farmland, and other low lying spots.

&&

LAT...LON 3210 11212 3189 11209 3196 11242 3216 11243

$$

Meyer
1 follow-up statement
092 
WGUS75 KTWC 180006
FFSTWC

Flash Flood Statement
National Weather Service Tucson AZ
506 PM MST MON JUL 17 2017

AZC019-180015-
/O.EXP.KTWC.FF.W.0013.000000T0000Z-170718T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pima-
506 PM MST MON JUL 17 2017

...THE FLASH FLOOD WARNING FOR CENTRAL PIMA COUNTY WILL EXPIRE AT 515
PM MST...

The heavy rain has ended near Pisinimo. Heavy flow will continue in 
normally dry streambeds and washes, along with some road flooding 
into the evening hours. Please continue to heed any road closures.

LAT...LON 3210 11212 3189 11209 3196 11242 3216 11243

$$

Meyer

The office that day

Everything else NWS Tucson, AZ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 16, 5:35 PM MSTSpecial Weather StatementTWCPinal55 min
Jul 16, 6:00 PM MSTSevere Thunderstorm WarningTWCPinal60 min
Jul 16, 6:31 PM MSTAreal Flood AdvisoryTWCPinal3 hr
Jul 16, 6:34 PM MSTAreal Flood AdvisoryTWCPima56 min
Jul 16, 6:36 PM MSTSpecial Weather StatementTWC39 min
Jul 16, 6:39 PM MSTSpecial Weather StatementTWC21 min
Jul 16, 6:42 PM MSTSpecial Weather StatementTWCPima48 min
Jul 16, 6:59 PM MSTSpecial Weather StatementTWCPinal61 min
Jul 16, 7:25 PM MSTSpecial Weather StatementTWC65 min
Jul 16, 7:27 PM MSTSpecial Weather StatementTWC33 min
Jul 16, 8:12 PM MSTSpecial Weather StatementTWCPima33 min
Jul 16, 8:56 PM MSTFlash Flood WarningTWCGraham3 hr
Jul 16, 9:04 PM MSTAreal Flood AdvisoryTWCPima, Pinal3 hr
Jul 16, 9:23 PM MSTSpecial Weather StatementTWCGraham67 min
Jul 16, 10:34 PM MSTAreal Flood AdvisoryTWCPima, Pinal3 hr
Jul 17, 12:35 AM MSTAreal Flood AdvisoryTWCPinal3 hr
Jul 17, 4:41 AM MSTFlash Flood WarningTWCSanta Cruz3 hr
Jul 17, 7:47 AM MSTAreal Flood AdvisoryTWCSanta Cruz118 min
Jul 17, 1:01 PM MSTSpecial Weather StatementTWC59 min
Jul 17, 1:04 PM MSTSpecial Weather StatementTWCSanta Cruz41 min
Jul 17, 1:58 PM MSTAreal Flood AdvisoryTWCCochise, Pima2 hr
Jul 17, 2:03 PM MSTFlash Flood WarningTWCPima117 min
Jul 17, 2:07 PM MSTFlash Flood WarningTWCPima, Pinal113 min
Jul 17, 2:12 PM MSTSevere Thunderstorm WarningTWCPinal33 min
Jul 17, 2:16 PM MSTAreal Flood AdvisoryTWCCochise119 min
Jul 17, 3:00 PM MSTFlash Flood WarningTWCPima, Pinal2 hr
Jul 17, 3:09 PM MSTSevere Thunderstorm WarningTWCPima, Pinal51 min
Jul 17, 3:40 PM MSTSevere Thunderstorm WarningTWCGraham23 min
Jul 17, 4:00 PM MSTAreal Flood AdvisoryTWCPima, Pinal5 hr
Jul 17, 4:01 PM MSTFlash Flood WarningTWCPima119 min
Jul 17, 4:02 PM MSTSevere Thunderstorm WarningTWCGraham, Pinal28 min
Jul 17, 4:54 PM MSTSpecial Weather StatementTWCPinal51 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.