Alert archive / Arizona / Flash Flood Warnings in 2003

Flash Flood Warning 8, NWS Tucson, AZ

July 22, 2003Pima County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jul 22, 2003, 9:12 PM MST for Pima County, Arizona. It was in force for 3 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 22, 2003, 9:12 PM MST (04:12 UTC)
Expired
Jul 22, 2003, 9:15 PM MST
In force
3 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), 44 km from the middle of the area, began a volume at 04:12 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, 4.2 hours before the alert went out and 40 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 2003-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 597 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 00:00Z on 2003-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -34 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
597 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
3166 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-34 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, in the capitals the NWS used until 2016.

000 
WGUS55 KTWC 230413
FFWTWC
AZC019-230515-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
912 PM MST TUE JUL 22 2003

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN PIMA COUNTY IN ARIZONA
    THIS INCLUDES THE CITY OF GREEN VALLEY

* UNTIL 1015 PM MST

* AT 912 PM MST...WEATHER SPOTTERS REPORTED VERY HEAVY
  RAIN IN GREEN VALLEY. THE THUNDERSTORM PRODUCING THE HEAVY RAIN    
  WAS MOVING WEST AT 15 MPH.

LAT...LON 3175 11126 3175 11078 3195 11091 3202 11123

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 5:30 PM MSTFlash Flood WarningTWCPima
Jul 22, 6:20 PM MSTFlash Flood WarningTWCPima, Pinal10 min
Jul 22, 7:21 PM MSTFlash Flood WarningTWCPima69 min
Jul 22, 7:37 PM MSTSevere Thunderstorm WarningTWCPima53 min
Jul 22, 8:33 PM MSTSevere Thunderstorm WarningTWCPima57 min
Jul 23, 2:22 PM MSTSevere Thunderstorm WarningTWCCochise38 min
Jul 23, 3:57 PM MSTSevere Thunderstorm WarningTWCPinal33 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.