Alert archive / Arizona / Flash Flood Warnings in 1992

Flash Flood Warning 8, NWS Tucson, AZ

August 23, 1992Pima County, Santa Cruz County, Arizona

NWS Tucson, AZ issued this flash flood warning at Aug 23, 1992, 2:16 PM MST for Pima County, Santa Cruz County, Arizona. It was in force for 59 min.

The area

The counties it named.

The facts

Issued
Aug 23, 1992, 2:16 PM MST (21:16 UTC)
Expired
Aug 23, 1992, 3:15 PM MST
In force
59 min
Issued by
NWS Tucson, AZ
Area
Whole counties

Counties Pima County, AZ, Santa Cruz County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 9.3 hours before the alert went out and 56 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 1992-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 537 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 1992-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.193958Sfc1 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
537 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
760 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
162 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUS 232116
FFWTUS
AZC019-023-232215-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON ARIZONA
216 PM MST SUN AUG 23 1992
 
THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
EFFECTIVE UNTIL  315 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL ARIZONA
 
   ...EAST CENTRAL PIMA COUNTY...SANTA CRUZ COUNTY
 
TUCSON WEATHER RADAR AND SATELLITE PICTURES INDICATED STRONG
THUNDERSTORM ACTIVITY AND HEAVY RAINFALL OVER EASTERN PIMA COUNTY AND
SANTA CRUZ COUNTY.
 
PERSONS IN THE AREA AFFECTED BY THIS STORM SHOULD BE ALERT TO RAPIDLY
CHANGING CONDITIONS AND TAKE APPROPRIATE ACTION.
 
 
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL\
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 23, 2:16 PM MSTSevere Thunderstorm WarningTWCPima, Santa Cruz59 min

Nearby

Flash Flood Warnings in Arizona, 1992Every flash flood warning in 1992

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.