Alert archive / Arizona / Flash Flood Warnings in 2004

Flash Flood Warning 41, NWS Tucson, AZ

August 15, 2004Santa Cruz County, Arizona

NWS Tucson, AZ issued this flash flood warning at Aug 15, 2004, 1:31 PM MST for Santa Cruz County, Arizona. It was in force for 59 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 15, 2004, 1:31 PM MST (20:31 UTC)
Expired
Aug 15, 2004, 2:30 PM MST
In force
59 min
Issued by
NWS Tucson, AZ
Area
Counties, with a storm outline in the text

County Santa Cruz County, AZ

The radar

The Tucson radar (KEMX), 44 km from the middle of the area, began a volume at 20:32 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 (KTUS), launched 12:00Z, 8.5 hours before the alert went out and 64 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 2004-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 65 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 2004-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 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
65 J/kg
Mixed-layer CIN
-139 J/kg
Mixed-layer LCL
1587 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
87 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 152033
FFWTWC
AZC023-152230-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
131 PM MST SUN AUG 15 2004

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL SANTA CRUZ COUNTY IN ARIZONA

* UNTIL 330 PM MST

* AT 130 PM MST...WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG 
  THUNDERSTORM WITH VERY HEAVY RAIN OVER TUBAC...OR ABOUT 18 MILES
  NORTH OF NOGALES...MOVING SOUTHEAST AT 10 MPH.

STREETS...UNDERPASSES...STREAMS AND NORMALLY DRY WASHES WILL FLOOD
QUICKLY. DO NOT DRIVE INTO FLOODED AREAS OF AROUND BARRICADES. IF
THE ROAD AHEAD IS BLOCKED...TURN AROUND AND TAKE ANOTHER ROUTE.


LAT...LON 3172 11113 3142 11114 3140 11076 3173 11057

$$
MEYER

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 15, 3:35 PM MSTFlash Flood WarningTWCCochise55 min

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; radar from the NEXRAD Level II archive.