Alert archive / Arizona / Flash Flood Warnings in 2016

Flash Flood Warning 2, NWS Tucson, AZ

July 6, 2016Santa Cruz County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jul 6, 2016, 5:20 PM MST for Santa Cruz County, Arizona. It was in force for 115 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 6, 2016, 5:20 PM MST (00:20 UTC)
Expired
Jul 6, 2016, 7:15 PM MST
In force
115 min
Issued by
NWS Tucson, AZ
Area
Storm-based polygon
Flood severity
None

County Santa Cruz County, AZ

The radar

The Tucson radar (KEMX), 66 km from the middle of the area, began a volume at 00:22 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, 0.3 hours before the alert went out and 87 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 00:00Z on 2016-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 56 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 00:00Z on 2016-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 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
56 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
3261 m above ground
0-6 km bulk shear
1 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
-9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

859 
WGUS55 KTWC 070020
FFWTWC
AZC023-070215-
/O.NEW.KTWC.FF.W.0002.160707T0020Z-160707T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
520 PM MST WED JUL 6 2016

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL SANTA CRUZ COUNTY IN SOUTHEASTERN ARIZONA...

* UNTIL 715 PM MST

* AT 518 PM MST...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN NEAR NOGALES. AN AUTOMATED GAUGE IN NOGALES SONORA HAS
  RECEIVED 1.18 INCHES OF RAIN IN THE LAST 30 MINUTES. THIS WILL
  RESULT IN A RAPID INCREASE IN FLOW IN THE NOGALES WASH FROM
  SONORA INTO NOGALES ARIZONA. 

  FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* NORMALLY DRY WASHES AND LOW WATER CROSSINGS MAY BE INUNDATED IN THE
  FOLLOWING LOCATIONS...
  NOGALES...RIO RICO NORTHWEST...RIO RICO SOUTHWEST...RIO RICO
  SOUTHEAST...RIO RICO NORTHEAST...TUMACACORI-CARMEN AND RIO RICO.

LAT...LON 3134 11109 3155 11105 3149 11090 3133 11082
      3133 11108

$$

GL
2 follow-up statements
718 
WGUS75 KTWC 070124
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
624 PM MST WED JUL 6 2016

AZC023-070215-
/O.CON.KTWC.FF.W.0002.000000T0000Z-160707T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SANTA CRUZ-
624 PM MST WED JUL 6 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM MST FOR
SOUTH CENTRAL SANTA CRUZ COUNTY...

AT 623 PM MST...NOGALES WASH CONTINUED TO FLOW AT ABOUT 4 FEET
THROUGH THE CITY OF NOGALES BUT HAS NOT REACHED BANKFULL. WITH
ADDITIONAL RAIN IN THE AREA...ADDITIONAL RISES ON THE NOGALES WASH
REMAIN POSSIBLE UNTIL 715 PM MST. 

LAT...LON 3134 11109 3155 11105 3149 11090 3133 11082
      3133 11108

$$

GL
546 
WGUS75 KTWC 070212
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
712 PM MST WED JUL 6 2016

AZC023-070220-
/O.EXP.KTWC.FF.W.0002.000000T0000Z-160707T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SANTA CRUZ-
712 PM MST WED JUL 6 2016

...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL SANTA CRUZ COUNTY WILL
EXPIRE AT 715 PM MST...

FLOOD WATERS ARE NOW RECEDING IN NOGALES WASH IN THE CITY OF NOGALES
BUT ELEVATED FLOWS REMAIN POSSIBLE FOR THE NEXT SEVERAL HOURS.
PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 3134 11109 3155 11105 3149 11090 3133 11082
      3133 11108

$$

GL

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 5:30 PM MSTAreal Flood AdvisoryTWCPima, Santa Cruz2 hr
Jul 6, 6:18 PM MSTAreal Flood AdvisoryTWCPima117 min
Jul 7, 12:30 PM MSTAreal Flood AdvisoryTWCCochise2 hr
Jul 7, 12:39 PM MSTFlash Flood WarningTWCCochise66 min
Jul 7, 1:20 PM MSTFlash Flood WarningTWCCochise85 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.