Alert archive / Arizona / Flash Flood Warnings in 2016

Flash Flood Warning 22, NWS Tucson, AZ

August 9, 2016Pima County, Santa Cruz County, Arizona

NWS Tucson, AZ issued this flash flood warning at Aug 9, 2016, 6:45 AM MST for Pima County, Santa Cruz County, Arizona. It was in force for 2 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 9, 2016, 6:45 AM MST (13:45 UTC)
Expired
Aug 9, 2016, 8:45 AM MST
In force
2 hr
Issued by
NWS Tucson, AZ
Area
Storm-based polygon
Flood severity
None

Counties Pima County, AZ, Santa Cruz County, AZ

The radar

The Tucson radar (KEMX), 22 km from the middle of the area, began a volume at 13:48 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.

What was reported inside it

TimeReportWhereRemark
Aug 9, 7:30 AM MSTFLASH FLOODPatagonia, AZSONOITA CREEK LEFT ITS BANKS..BUT RECEDED BY 930 AM MST. 8 MOBILE HOMES EVACUATED BUT NOT FLOODED. 18 INCHES SURROUNDING THEM.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tuscon, AZ (KDMA), launched 12:00Z, 1.8 hours before the alert went out and 59 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 2016-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1435 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 2016-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.193958Sfc1 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
1435 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1478 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
6 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

480 
WGUS55 KTWC 091345
FFWTWC
AZC019-023-091545-
/O.NEW.KTWC.FF.W.0022.160809T1345Z-160809T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
645 AM MST TUE AUG 9 2016

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN SANTA CRUZ COUNTY IN SOUTHEASTERN ARIZONA...
  EAST CENTRAL PIMA COUNTY IN SOUTHEASTERN ARIZONA...

* UNTIL 845 AM MST

* AT 644 AM MST...DOPPLER RADAR INDICATED THUNDERSTORMS THAT HAVE A
  HISTORY OF PRODUCING VERY HEAVY RAIN OVER SOUTHEASTERN PARTS OF
  SANTA CRUZ COUNTY AND SOUTHWESTERN PORTIONS OF COCHISE COUNTY ARE
  MOVING NORTHWEST INTO NORTHEAST SANTA CRUZ COUNTY AND SOUTHEAST
  PIMA COUNTY. RADAR RAINFALL ESTIMATES INDICATE AMOUNTS OF 1.5 TO
  OVER 2 INCHES HAVE OCCURRED WITH THESE SHOWERS AND STORMS.  

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  EAST SAHUARITA...PATAGONIA...SONOITA AND ELGIN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 3156 11047 3153 11078 3193 11095 3190 11047

$$

MOLLERE
1 follow-up statement
868 
WGUS75 KTWC 091539
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
839 AM MST TUE AUG 9 2016

AZC019-023-091546-
/O.EXP.KTWC.FF.W.0022.000000T0000Z-160809T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SANTA CRUZ-PIMA-
839 AM MST TUE AUG 9 2016

...THE FLASH FLOOD WARNING FOR NORTHEASTERN SANTA CRUZ AND EAST
CENTRAL PIMA COUNTIES WILL EXPIRE AT 845 AM MST...

THE HEAVY RAIN HAS ENDED FOR NOW IN FAR SOUTHEAST PIMA COUNTY AND
NORTHEAST SANTA CRUZ COUNTY. HOWEVER...SOME MINOR FLOODING AND
ELEVATED FLOWS IN WASHES IS EXPECTED TO CONTINUE FROM THE HEAVY RAIN
THAT OCCURRED EARLIER THIS MORNING. A FLOOD ADVISORY REMAINS IN
EFFECT FOR THESE AREAS. PLEASE CONTINUE TO HEED ANY REMAINING ROAD
CLOSURES.

LAT...LON 3156 11047 3153 11078 3193 11095 3190 11047

$$

KD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 5:18 AM MSTAreal Flood AdvisoryTWCCochise, Santa Cruz3 hr
Aug 9, 5:37 AM MSTFlash Flood WarningTWCCochise, Santa Cruz113 min
Aug 9, 6:45 AM MSTAreal Flood AdvisoryTWCPima, Santa Cruz3 hr
Aug 9, 7:46 AM MSTFlash Flood WarningTWCPima, Santa Cruz5 hr
Aug 9, 8:13 AM MSTAreal Flood AdvisoryTWCCochise, Santa Cruz2 hr
Aug 9, 8:30 AM MSTAreal Flood AdvisoryTWCPima, Pinal4 hr
Aug 9, 9:08 AM MSTFlash Flood WarningTWCPima3 hr
Aug 9, 11:50 AM MSTAreal Flood AdvisoryTWCPima, Pinal115 min
Aug 9, 1:10 PM MSTAreal Flood WarningTWCSanta Cruz3 hr
Aug 9, 4:23 PM MSTAreal Flood AdvisoryTWCCochise112 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.