Alert archive / Arizona / Flash Flood Warnings in 2016

Flash Flood Warning 17, NWS Tucson, AZ

August 3, 2016Pinal County, Arizona

NWS Tucson, AZ issued this flash flood warning at Aug 3, 2016, 4:44 PM MST for Pinal 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
Aug 3, 2016, 4:44 PM MST (23:44 UTC)
Expired
Aug 3, 2016, 6:45 PM MST
In force
2 hr
Issued by
NWS Tucson, AZ
Area
Storm-based polygon
Flood severity
None

County Pinal County, AZ

The radar

The Phoenix radar (KIWA), 93 km from the middle of the area, began a volume at 23:48 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, 11.7 hours before the alert went out and 63 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 2016-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 959 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 2016-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
959 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
1071 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

881 
WGUS55 KTWC 032344
FFWTWC
AZC021-040145-
/O.NEW.KTWC.FF.W.0017.160803T2344Z-160804T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
444 PM MST WED AUG 3 2016

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN PINAL COUNTY IN SOUTHEASTERN ARIZONA...

* UNTIL 645 PM MST

* AT 442 PM MST...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ALONG PARK LINK DRIVE AND CADILLAC WASH. HEAVY RAIN
  IS ALSO OCCURRING ALONG TUCSON WASH WEST OF MAMMOTH.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MAMMOTH AND PARK LINK DRIVE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3288 11071 3265 11057 3255 11126 3270 11140

$$

KD
1 follow-up statement
335 
WGUS75 KTWC 040144
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
644 PM MST WED AUG 3 2016

AZC021-040153-
/O.EXP.KTWC.FF.W.0017.000000T0000Z-160804T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PINAL-
644 PM MST WED AUG 3 2016

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN PINAL COUNTY WILL EXPIRE
AT 645 PM MST...

THE HEAVY RAIN HAS ENDED BUT A FEW SHOWERS WILL CONTINUE THROUGH 730
PM. FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE
TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 3288 11071 3265 11057 3255 11126 3270 11140

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 7:53 AM MSTAreal Flood AdvisoryTWCPima, Santa Cruz112 min
Aug 3, 1:13 PM MSTAreal Flood AdvisoryTWCCochise, Pima, Santa Cruz2 hr
Aug 3, 2:54 PM MSTAreal Flood AdvisoryTWCPima, Santa Cruz111 min
Aug 3, 3:01 PM MSTFlash Flood WarningTWCSanta Cruz119 min
Aug 3, 3:54 PM MSTSpecial Weather StatementTWCPinal36 min
Aug 3, 4:06 PM MSTSpecial Weather StatementTWC24 min
Aug 3, 4:22 PM MSTAreal Flood AdvisoryTWCPinal113 min

Nearby

Flash Flood Warnings in Arizona, 2016Every flash flood warning in 2016

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.