Alert archive / Arizona / Flash Flood Warnings in 1992

Flash Flood Warning 7, NWS Tucson, AZ

August 11, 1992Cochise County, Pima County, Arizona

NWS Tucson, AZ issued this flash flood warning at Aug 11, 1992, 5:07 PM MST for Cochise County, Pima County, Arizona. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Aug 11, 1992, 5:07 PM MST (00:07 UTC)
Expired
Aug 11, 1992, 7:15 PM MST
In force
2 hr
Issued by
NWS Tucson, AZ
Area
Whole counties

Counties Cochise County, AZ, Pima County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 0.1 hours before the alert went out and 24 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 1992-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 940 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 1992-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 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
940 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
2758 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
69 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.

000 
TTAA00 KTUS 120009
FFWTUS
AZC019-003-120215-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON ARIZONA
507 PM MST TUE AUG 11 1992
 
THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
EFFECTIVE UNTIL  715 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL ARIZONA
 
   ...EASTERN PIMA COUNTY
 
IN SOUTHEAST ARIZONA
 
   ...WESTERN COCHISE COUNTY
 
TUCSON WEATHER RADAR INDICATES A VERY LARGE STRONG THUNDERSTORM IN
WESTERN COCHISE COUNTY AND EASTERN PIMA COUNTY. THIS STORM IS MOVING
TO THE WEST AT 15 MPH.
PERSONS IN THE PATH OF THIS STORM SHOULD TAKE COVER IMMEDIATELY.
 
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.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 5:07 PM MSTSevere Thunderstorm WarningTWCCochise2 hr

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.