Alert archive / Arizona / Flash Flood Warnings in 2003

Flash Flood Warning 33, NWS Tucson, AZ

August 12, 2003Pima County, Arizona

NWS Tucson, AZ issued this flash flood warning at Aug 12, 2003, 10:13 PM MST for Pima County, Arizona. It was in force for 2 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 12, 2003, 10:13 PM MST (05:13 UTC)
Expired
Aug 12, 2003, 10:15 PM MST
In force
2 min
Issued by
NWS Tucson, AZ
Area
Counties, with a storm outline in the text

County Pima County, AZ

The radar

The Tucson radar (KEMX), 6 km from the middle of the area, began a volume at 05:15 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 00:00Z, 5.2 hours before the alert went out and 37 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 2003-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 671 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2003-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
671 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
3482 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
3 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 130513
FFWTWC
AZC019-130615-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
1013 PM MST TUE AUG 12 2003

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL PIMA COUNTY IN ARIZONA

* UNTIL 1115 PM MST

* AT 1012 PM MST...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY 
  RAIN SOUTHEAST OF VAIL...OR ABOUT 27 MILES EAST OF GREEN           
  VALLEY.  THE AREA OF HEAVY RAIN WAS NEARLY STATIONARY.

SEVERAL AUTOMATED RAIN GAUGES WERE REPORTING VERY RAINFALL...WITH 
THE GAUGE AT CIENEGA CREEK AND INTERSTATE 10 REPORTING 1.22 INCHES IN 
THE PAST 45 MINUTES. 

LAT...LON 3175 11090 3174 11045 3214 11045 3203 11077

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 5:57 PM MSTSevere Thunderstorm WarningTWCCochise48 min
Aug 12, 9:30 PM MSTSevere Thunderstorm WarningTWCPima45 min
Aug 13, 12:33 AM MSTSevere Thunderstorm WarningTWCSanta Cruz37 min
Aug 13, 2:30 PM MSTSevere Thunderstorm WarningTWCGreenlee30 min
Aug 13, 3:11 PM MSTSevere Thunderstorm WarningTWCPima49 min
Aug 13, 3:23 PM MSTFlash Flood WarningTWCPima97 min
Aug 13, 3:37 PM MSTSevere Thunderstorm WarningTWCPima38 min

Nearby

Flash Flood Warnings in Arizona, 2003Every flash flood warning in 2003

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.