Alert archive / Arizona / Flash Flood Warnings in 2016

Flash Flood Warning 3, NWS Tucson, AZ

July 7, 2016Cochise County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jul 7, 2016, 12:39 PM MST for Cochise County, Arizona. It was in force for 66 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 7, 2016, 12:39 PM MST (19:39 UTC)
Expired
Jul 7, 2016, 1:45 PM MST
In force
66 min
Issued by
NWS Tucson, AZ
Area
Storm-based polygon
Flood severity
None

County Cochise County, AZ

The radar

The Tucson radar (KEMX), 64 km from the middle of the area, began a volume at 19:39 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, 7.7 hours before the alert went out and 104 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 2016-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 559 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 2016-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
559 J/kg
Mixed-layer CIN
-179 J/kg
Mixed-layer LCL
1608 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
-18 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

706 
WGUS55 KTWC 071939
FFWTWC
AZC003-072045-
/O.NEW.KTWC.FF.W.0003.160707T1939Z-160707T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
1239 PM MST THU JUL 7 2016

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN COCHISE COUNTY IN SOUTHEASTERN ARIZONA...

* UNTIL 145 PM MST

* AT 1237 PM MST...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
  THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS CARR AND MILLER CANYONS.
  ONE AND ONE HALF INCHES OF RAIN WAS MEASURED BY GAUGES IN THE
  AREA. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* NORMALLY DRY WASHES AND LOW WATER CROSSINGS MAY BE INUNDATED IN THE
  FOLLOWING LOCATIONS...
  SIERRA VISTA SOUTHEAST...NICKSVILLE...RAMSEY CANYON PRESERVE AND
  HEREFORD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3152 11012 3143 11010 3136 11029 3147 11032

$$

KD
2 follow-up statements
754 
WGUS75 KTWC 072014
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
114 PM MST THU JUL 7 2016

AZC003-072045-
/O.CON.KTWC.FF.W.0003.000000T0000Z-160707T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COCHISE-
114 PM MST THU JUL 7 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 PM MST FOR
SOUTHWESTERN COCHISE COUNTY...

AT 112 PM MST...GAUGE REPORTS INDICATED THUNDERSTORMS HAD PRODUCED
HEAVY RAIN OVER THE CARR AND MILLER CANYON AREAS. 

FLASH FLOODING MAY OCCUR OVER ROADWAYS IN CARR AND MILLER CANYON
AREAS AS RUNOFF CONTINUES THROUGH 145 PM MST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3152 11012 3143 11010 3136 11029 3147 11032

$$

KD
154 
WGUS75 KTWC 072043
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
143 PM MST THU JUL 7 2016

AZC003-072049-
/O.EXP.KTWC.FF.W.0003.000000T0000Z-160707T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COCHISE-
143 PM MST THU JUL 7 2016

...THE FLASH FLOOD WARNING FOR SOUTHWESTERN COCHISE COUNTY WILL
EXPIRE AT 145 PM MST...

THE HEAVY RAIN HAS ENDED IN CARR AND MILLER CANYONS AND THE BULK OF
THE RUNOFF HAS ENDED IN THOSE AREAS...SO THE FLASH FLOOD WARNING
WILL BE ALLOWED TO EXPIRE AT 145 PM MST.  AN URBAN AND SMALL STREAM
FLOOD ADVISORY DOES REMAIN IN EFFECT UNTIL 230 PM FOR MUCH OF THE
SIERRA VISTA AREA AS STORMS MOVING ACROSS THE CITY COULD STILL CAUSE
LOCAL PONDING OF WATER AND FLOODED LOW WATER CROSSINGS.

IN ADDITION...A SEPARATE FLASH FLOOD WARNING FOR WHETSTONE AND
HUACHUCA CITY CONTINUES UNTIL 245 PM MST.  DO NOT CROSS WATER
FLOWING RAPIDLY ACROSS A ROADWAY!

LAT...LON 3152 11012 3143 11010 3136 11029 3147 11032

$$

KD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 5:20 PM MSTFlash Flood WarningTWCSanta Cruz115 min
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, 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.