Alert archive / Arizona / Flash Flood Warnings in 1993

Flash Flood Warning 9, NWS Tucson, AZ

August 3, 1993Cochise County, Arizona

NWS Tucson, AZ issued this flash flood warning at Aug 3, 1993, 1:10 PM MST for Cochise County, Arizona. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Aug 3, 1993, 1:10 PM MST (20:10 UTC)
Expired
Aug 3, 1993, 2:15 PM MST
In force
65 min
Issued by
NWS Tucson, AZ
Area
Whole counties

County Cochise County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 8.2 hours before the alert went out and 113 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 1993-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 26 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 1993-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
26 J/kg
Mixed-layer CIN
-451 J/kg
Mixed-layer LCL
2297 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
119 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 032008
FFWTUS
AZC003-032115-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON ARIZONA
110 PM MST TUE AUG 3 1993
 
THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
EFFECTIVE UNTIL  215 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST ARIZONA
 
   ...SOUTHEASTERN COCHISE COUNTY
 
AT 1PM MST...NATIONAL WEATHER SERVICE RADAR INDICATED A VERY STRONG SLOW
MOVING THUNDERSTORM OVER THE HIGHER TERRAIN...10 MILES NORTH-NORTHEAST
OF DOUGLAS ARIZONA. WITH VERY LITTLE MOVEMENT THIS THUNDERSTORM COULD
EASILY PRODUCE LOCAL FLASH FLOODING ALONG WITH GUSTY WIND...SIGNIFICANT
LIGHTNING AND POSSIBLY HAIL.
 
PERSONS IN THE VICINITY OF THIS DANGEROUS STORM SHOULD TAKE IMMEDIATE
PROTECTIVE ACTIONS.
 
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.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN.  IF OUTSIDE...MOVE TO A
SHELTER OR INSIDE A STRONG BUILDING...BUT STAY AWAY FROM WINDOWS.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 8:10 PM MSTFlash Flood WarningTWCPima2 hr
Aug 2, 8:10 PM MSTSevere Thunderstorm WarningTWCPima2 hr
Aug 3, 1:10 PM MSTSevere Thunderstorm WarningTWCCochise65 min

Nearby

Flash Flood Warnings in Arizona, 1993Every flash flood warning in 1993

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.