Alert archive / Arizona / Flash Flood Warnings in 2016

Flash Flood Warning 6, NWS Tucson, AZ

July 27, 2016Cochise County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jul 27, 2016, 4:32 PM MST for Cochise County, Arizona. It was in force for 118 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 27, 2016, 4:32 PM MST (23:32 UTC)
Expired: Jul 27, 2016, 6:30 PM MST
In force: 118 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon
Flood severity: None

County Cochise County, AZ

The radar

The Tucson radar (KEMX), 46 km from the middle of the area, began a volume at 23:32 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, 11.5 hours before the alert went out and 86 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: 181 J/kg
Mixed-layer CIN: -347 J/kg
Mixed-layer LCL: 2326 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

946 
WGUS55 KTWC 272332
FFWTWC
AZC003-280130-
/O.NEW.KTWC.FF.W.0006.160727T2332Z-160728T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
432 PM MST WED JUL 27 2016

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

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

* UNTIL 630 PM MST

* AT 431 PM MST...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
  THUNDERSTORMS PRODUCING HEAVY RAIN NEAR THE SIERRA VISTA AREA.
  FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  SIERRA VISTA...HUACHUCA CITY...FORT HUACHUCA...
  RAMSEY CANYON PRESERVE...HEREFORD...
  PARKER CANYON LAKE AND CORONADO NATIONAL MEMORIAL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3161 11046 3161 11045 3167 11045 3161 11024
      3134 11014 3133 11046

$$

MEYER

1 follow-up statement

552 
WGUS75 KTWC 280034
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
534 PM MST WED JUL 27 2016

AZC003-280043-
/O.CAN.KTWC.FF.W.0006.000000T0000Z-160728T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COCHISE-
534 PM MST WED JUL 27 2016

...THE FLASH FLOOD WARNING FOR SOUTHWESTERN COCHISE COUNTY IS
CANCELLED...

HEAVY FLOW WILL CONTINUE IN SOME WASHES AND STREAMS, HOWEVER FLASH
FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO
HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 3161 11046 3161 11045 3167 11045 3161 11024
      3134 11014 3133 11046

$$

MEYER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 26, 5:31 PM MST	Severe Thunderstorm Warning	TWC	Pima	59 min
Jul 26, 5:38 PM MST	Special Weather Statement	TWC		37 min
Jul 26, 6:09 PM MST	Special Weather Statement	TWC	Cochise	36 min
Jul 26, 6:26 PM MST	Special Weather Statement	TWC	Santa Cruz	64 min
Jul 26, 7:29 PM MST	Blowing Dust Advisory	TWC	Pima, Santa Cruz	43 min
Jul 26, 7:34 PM MST	Severe Thunderstorm Warning	TWC	Pima	40 min
Jul 26, 8:02 PM MST	Areal Flood Advisory	TWC	Pima	58 min
Jul 26, 8:25 PM MST	Blowing Dust Advisory	TWC	Pima, Pinal	88 min
Jul 26, 9:28 PM MST	Areal Flood Advisory	TWC	Pima	2 hr
Jul 27, 2:02 PM MST	Special Weather Statement	TWC	Graham	43 min
Jul 27, 2:13 PM MST	Severe Thunderstorm Warning	TWC	Graham, Greenlee	62 min
Jul 27, 2:31 PM MST	Severe Thunderstorm Warning	TWC	Cochise	59 min
Jul 27, 2:38 PM MST	Special Weather Statement	TWC	Greenlee	52 min
Jul 27, 2:59 PM MST	Severe Thunderstorm Warning	TWC	Graham, Greenlee	46 min
Jul 27, 3:04 PM MST	Severe Thunderstorm Warning	TWC	Cochise, Pima	56 min
Jul 27, 3:34 PM MST	Severe Thunderstorm Warning	TWC	Graham	30 min
Jul 27, 3:36 PM MST	Areal Flood Advisory	TWC	Cochise	114 min
Jul 27, 3:40 PM MST	Special Weather Statement	TWC	Cochise	65 min
Jul 27, 4:01 PM MST	Special Weather Statement	TWC	Santa Cruz	59 min
Jul 27, 4:11 PM MST	Blowing Dust Advisory	TWC	Cochise, Graham, Greenlee, Pinal	49 min
Jul 27, 4:12 PM MST	Special Weather Statement	TWC	Cochise	63 min
Jul 27, 4:15 PM MST	Special Weather Statement	TWC		30 min
Jul 27, 4:19 PM MST	Severe Thunderstorm Warning	TWC	Cochise	41 min
Jul 27, 4:28 PM MST	Special Weather Statement	TWC	Graham	32 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; radar from the NEXRAD Level II archive.