Alert archive / Arizona / Flash Flood Warnings in 2016

Flash Flood Warning 5, NWS Tucson, AZ

July 24, 2016Pima County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jul 24, 2016, 5:53 PM MST for Pima County, Arizona. It was in force for 97 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 24, 2016, 5:53 PM MST (00:53 UTC)
Expired: Jul 24, 2016, 7:30 PM MST
In force: 97 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon
Flood severity: None

County Pima County, AZ

The nearest sounding before it

Tuscon, AZ (KDMA), launched 00:00Z, 0.9 hours before the alert went out and 75 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 328 J/kg
Mixed-layer CIN: -213 J/kg
Mixed-layer LCL: 2915 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: -55 m²/s²
0-3 km storm-relative helicity: 46 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

573 
WGUS55 KTWC 250053
FFWTWC
AZC019-250230-
/O.NEW.KTWC.FF.W.0005.160725T0053Z-160725T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
553 PM MST SUN JUL 24 2016

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

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

* UNTIL 730 PM MST

* AT 553 PM MST...A TRAINED WEATHER SPOTTER REPORTED A THUNDERSTORM
  PRODUCING 1.80 INCHES OF RAIN NEAR ARIVACA. FLASH FLOODING OF
  ROADWAY DIPS AND NORMALLY DRY WASHES IS LIKELY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ARIVACA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 3165 11129 3153 11128 3156 11150 3171 11147

$$

1 follow-up statement

282 
WGUS75 KTWC 250221
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
721 PM MST SUN JUL 24 2016

AZC019-250230-
/O.EXP.KTWC.FF.W.0005.000000T0000Z-160725T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIMA-
721 PM MST SUN JUL 24 2016

...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL PIMA COUNTY WILL EXPIRE
AT 730 PM MST...

THE HEAVY RAIN HAS ENDED AND FLASH FLOODING IS NO LONGER EXPECTED TO
POSE A THREAT TO AREAS NEAR ARIVACA. PLEASE CONTINUE TO HEED ANY
REMAINING ROAD CLOSURES.

LAT...LON 3165 11129 3153 11128 3156 11150 3171 11147

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 24, 5:14 PM MST	Special Weather Statement	TWC	Graham	31 min
Jul 24, 5:27 PM MST	Areal Flood Advisory	TWC	Pima	63 min
Jul 24, 8:33 PM MST	Special Weather Statement	TWC	Cochise	57 min
Jul 24, 9:12 PM MST	Areal Flood Advisory	TWC	Cochise	2 hr
Jul 24, 9:45 PM MST	Special Weather Statement	TWC	Cochise	60 min

Nearby

Flash Flood Warnings in Arizona, 2016 Every 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.