Alert archive / Arizona / Flash Flood Warnings in 2004

Flash Flood Warning 8, NWS Tucson, AZ

July 17, 2004Graham County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jul 17, 2004, 4:29 PM MST for Graham County, Arizona. It was in force for 61 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 17, 2004, 4:29 PM MST (23:29 UTC)
Expired
Jul 17, 2004, 5:30 PM MST
In force
61 min
Issued by
NWS Tucson, AZ
Area
Counties, with a storm outline in the text

County Graham County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 11.5 hours before the alert went out and 116 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 2004-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 555 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 12:00Z on 2004-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -88 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
555 J/kg
Mixed-layer CIN
-194 J/kg
Mixed-layer LCL
2011 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-88 m²/s²
0-3 km storm-relative helicity
-125 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS55 KTWC 172328
FFWTWC
AZC009-180130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
429 PM MST SAT JUL 17 2004

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL GRAHAM COUNTY IN ARIZONA
   INCLUDING THE BURN AREAS ON THE PINALENO MOUNTAINS

* UNTIL 630 PM MST

* AT 420 PM MST...AN AUTOMATED RAIN GAGE ON MOUNT GRAHAM INDICATED VERY 
  HEAVY RAIN...NEAR 1.25 INCHES HAD FALLEN OVER THE ASH CANYON WATERSHED.
  
FLASH FLOODING OF ASH CREEK IS LIKELY. THIS CREEK WILL FLOW NORTHEAST 
TOWARDS THE TOWN OF PIMA IN CENTRAL GRAHAM COUNTY. THESE HEAVY RAINS COULD 
ALSO TRIGGER ROCK AND MUDSLIDES IN STEEP TERRAIN.

LAT...LON 3274 11001 3266 10987 3287 10974 3295 10988

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 6:15 PM MSTSevere Thunderstorm WarningTWCPima45 min
Jul 17, 12:42 AM MSTSevere Thunderstorm WarningTWCCochise48 min
Jul 17, 1:40 PM MSTFlash Flood WarningTWCPima, Pinal3 hr

Nearby

Flash Flood Warnings in Arizona, 2004Every flash flood warning in 2004

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.