Alert archive / Arizona / Flash Flood Warnings in 2003

Flash Flood Warning 49, NWS Tucson, AZ

August 22, 2003Pima County, Arizona

NWS Tucson, AZ issued this flash flood warning at Aug 22, 2003, 3:25 PM MST for Pima County, Arizona. It was in force for 35 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 22, 2003, 3:25 PM MST (22:25 UTC)
Expired
Aug 22, 2003, 4:00 PM MST
In force
35 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), 75 km from the middle of the area, began a volume at 22:25 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, 10.4 hours before the alert went out and 74 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 2003-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 451 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 2003-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
451 J/kg
Mixed-layer CIN
-202 J/kg
Mixed-layer LCL
2025 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KTWC 222226
FFWTWC
AZC019-230000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
325 PM MST FRI AUG 22 2003

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

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

* UNTIL 500 PM MST

* AT 325 PM MST...AUTOMATED GAGES INDICATED THUNDERSTORMS WITH VERY  
  HEAVY RAIN OVER ARIVACA...OR ABOUT 22 MILES SOUTHWEST OF GREEN     
  VALLEY...MOVING NORTHWEST AT 10 MPH.

* THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE NEAR...
   JUNCTION OF HIGHWAY 286 AND ARIVACA ROAD AT 350 PM MST

LAT...LON 3156 11119 3189 11116 3190 11155 3153 11164
          3145 11139 3155 11140

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 6:29 PM MSTSevere Thunderstorm WarningTWCGraham46 min
Aug 22, 2:52 PM MSTFlash Flood WarningTWCSanta Cruz23 min
Aug 22, 3:46 PM MSTSevere Thunderstorm WarningTWCPima44 min
Aug 22, 4:26 PM MSTSevere Thunderstorm WarningTWCPima34 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.