Alert archive / Arizona / Flash Flood Warnings in 2003

Flash Flood Warning 7, NWS Tucson, AZ

July 22, 2003Pima County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jul 22, 2003, 7:21 PM MST for Pima County, Arizona. It was in force for 69 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, 7:21 PM MST (02:21 UTC)
Expired
Jul 22, 2003, 8:30 PM MST
In force
69 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), 57 km from the middle of the area, began a volume at 02:23 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, 2.4 hours before the alert went out and 28 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 230222
FFWTWC
AZC019-230430-

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

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FAR NORTHEASTERN PIMA COUNTY IN ARIZONA

* UNTIL 930 PM MST

* AT 720 PM MST MOST OF THE SHOWER ACTIVITY WAS OVER FOR THE TIME 
  BEING IN THE CATALINA MOUNTAINS. WITH HEAVY RUNOFF A CONTINUING 
  THREAT AND MORE STORMS POSSIBLY MOVING IN FROM THE SOUTHEAST...
  THE WARNING WAS EXTENDED UNTIL 930 PM.

SIGNIFICANT TO FLOODING FLOW CONTINUED IN SABINO CREEK...AND COULD 
CAUSE FLASH FLOODING IN THE SABINO CANYON AREA. IN 
ADDITION...WIDESPREAD RAINFALL AMOUNTS BETWEEN 1 AND 3 INCHES 
REPORTEDLY GENERATED MUD SLIDES BLOCKING THE ROAD ALONG CATALINA 
HIGHWAY.

LAT...LON 3235 11094 3231 11072 3232 11055 3252 11054
          3252 11084

$$
MEYER

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, 7:37 PM MSTSevere Thunderstorm WarningTWCPima53 min
Jul 22, 8:33 PM MSTSevere Thunderstorm WarningTWCPima57 min
Jul 22, 9:12 PM MSTFlash Flood WarningTWCPima3 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.