Alert archive / Arizona / Flash Flood Warnings in 2002

Flash Flood Warning 13, NWS Tucson, AZ

August 3, 2002Pima County, Arizona

NWS Tucson, AZ issued this flash flood warning at Aug 3, 2002, 2:14 PM MST for Pima County, Arizona. It was in force for 61 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 3, 2002, 2:14 PM MST (21:14 UTC)
Expired
Aug 3, 2002, 3:15 PM MST
In force
61 min
Issued by
NWS Tucson, AZ
Area
Counties, with a storm outline in the text

County Pima County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 9.2 hours before the alert went out and 18 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 2002-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 343 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 2002-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
343 J/kg
Mixed-layer CIN
-100 J/kg
Mixed-layer LCL
1624 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
30 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.

001 
WGUS55 KTWC 032114
FFWTWC
AZC019-032215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
209 PM MST SAT AUG 3 2002

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN PIMA COUNTY IN ARIZONA
  THIS INCLUDES THE CITIES OF...TUCSON...ORO VALLEY...CATALINA...
  AS WELL AS THE TUCSON MOUNTAINS.

* UNTIL 315 PM MST

* AT 209 PM MST...SEVERE WEATHER SPOTTERS AND RADAR INDICATE SLOW 
MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUE TO AFFECT 
CENTRAL...WEST...AND NORTHWEST TUCSON...ORO VALLEY...AND HIGHWAY 77 
TO THE TOWN OF CATALINA. URBAN FLOODING AND DANGEROUS RUNOFF IN 
WASHES AND STREAMS IS OCCURRING IN THESE AREAS...AND WILL CONTINUE 
THROUGH 315 PM MST.  THUS..THE FLASH FLOOD WARNING HAS BEEN EXTENDED 
FOR NORTHEAST PIMA COUNTY.

LAT...LON 3229 11113 3216 11098 3218 11089 3229 11087
          3235 11081 3252 11078 3251 11107





$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 1:03 PM MSTFlash Flood WarningTWCPima12 min
Aug 3, 1:08 PM MSTFlash Flood WarningTWCPima67 min
Aug 3, 1:13 PM MSTFlash Flood WarningTWCPima62 min
Aug 3, 1:19 PM MSTFlash Flood WarningTWCCochise11 min
Aug 3, 1:23 PM MSTFlash Flood WarningTWCCochise67 min
Aug 3, 1:49 PM MSTFlash Flood WarningTWCCochise
Aug 3, 1:51 PM MSTFlash Flood WarningTWCCochise54 min
Aug 3, 3:36 PM MSTFlash Flood WarningTWCGreenlee
Aug 3, 3:37 PM MSTFlash Flood WarningTWCGreenlee53 min

Nearby

Flash Flood Warnings in Arizona, 2002Every flash flood warning in 2002

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.