Alert archive / Arizona / Flash Flood Warnings in 2016

Flash Flood Warning 19, NWS Tucson, AZ

August 6, 2016Cochise County, Arizona

NWS Tucson, AZ issued this flash flood warning at Aug 6, 2016, 6:18 PM MST for Cochise County, Arizona. It was in force for 117 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
Aug 6, 2016, 6:18 PM MST (01:18 UTC)
Expired
Aug 6, 2016, 8:15 PM MST
In force
117 min
Issued by
NWS Tucson, AZ
Area
Storm-based polygon
Flood severity
None

County Cochise County, AZ

The radar

The Tucson radar (KEMX), 81 km from the middle of the area, began a volume at 01:21 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, 1.3 hours before the alert went out and 108 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 2016-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 134 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 2016-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 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
134 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
3103 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

297 
WGUS55 KTWC 070118
FFWTWC
AZC003-070315-
/O.NEW.KTWC.FF.W.0019.160807T0118Z-160807T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
618 PM MST SAT AUG 6 2016

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

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

* UNTIL 815 PM MST

* AT 616 PM MST...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN NEAR PEARCE-SUNSITES. RADAR ESTIMATED RAINFALL TOTALS
  IN EXCESS OF 2 INCHES HAVE OCCURRED IN THIS AREA. FLASH FLOODING
  IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  KANSAS SETTLEMENT AND PEARCE-SUNSITES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3209 10962 3172 10970 3181 10997 3209 10997

$$

GL
2 follow-up statements
212 
WGUS75 KTWC 070211
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
711 PM MST SAT AUG 6 2016

AZC003-070315-
/O.CON.KTWC.FF.W.0019.000000T0000Z-160807T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COCHISE-
711 PM MST SAT AUG 6 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM MST FOR
CENTRAL COCHISE COUNTY...

AT 710 PM MST...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ARE GENERALLY WINDING DOWN ACROSS THE AREA NEAR PEARCE-
SUNSITES. RADAR ESTIMATES OF TWO TO THREE INCHES OF RAIN HAVE
OCCURRED IN THIS AREA WITH FLASH FLOODING CONTINUING. 

NORMALLY DRY WASHES AND LOW WATER CROSSINGS MAY BE INUNDATED IN THE
FOLLOWING LOCATIONS...
KANSAS SETTLEMENT AND PEARCE-SUNSITES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3209 10962 3172 10970 3181 10997 3209 10997

$$

GL
422 
WGUS75 KTWC 070306
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
806 PM MST SAT AUG 6 2016

AZC003-070315-
/O.EXP.KTWC.FF.W.0019.000000T0000Z-160807T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COCHISE-
806 PM MST SAT AUG 6 2016

...THE FLASH FLOOD WARNING FOR CENTRAL COCHISE COUNTY WILL EXPIRE AT
815 PM MST...

THE HEAVY RAIN HAS ENDED. FLOOD WATERS HAVE RECEDED. FLOODING IS NO
LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO HEED ANY
REMAINING ROAD CLOSURES.

LAT...LON 3209 10962 3172 10970 3181 10997 3209 10997

$$

GL

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 6:01 PM MSTSevere Thunderstorm WarningTWCCochise44 min
Aug 6, 7:20 PM MSTSpecial Weather StatementTWCSanta Cruz25 min
Aug 6, 8:48 PM MSTSpecial Weather StatementTWC42 min
Aug 6, 9:04 PM MSTAreal Flood AdvisoryTWCPima116 min
Aug 6, 9:50 PM MSTFlash Flood WarningTWCPima115 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.