Alert archive / Arizona / Flash Flood Warnings in 1993

Flash Flood Warning 1, NWS Tucson, AZ

January 7, 1993Pima County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jan 7, 1993, 7:10 PM MST for Pima County, Arizona. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jan 7, 1993, 7:10 PM MST (02:10 UTC)
Expired
Jan 7, 1993, 11:15 PM MST
In force
4 hr
Issued by
NWS Tucson, AZ
Area
Whole counties

County Pima County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 2.2 hours before the alert went out and 84 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 1993-01-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 135 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 1993-01-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 138 square meters per square second.1939587897117136Sfc1 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
135 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
695 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
138 m²/s²
0-3 km storm-relative helicity
186 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 080213
FFWTUS
AZC019-080615-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON ARIZONA
710 PM MST THU JAN 7 1993
 
THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1115 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL ARIZONA
 
   ...EASTERN PIMA COUNTY
 
AT 630 PM MST A WEATHER SPOTTER LOCATED NEAR SABINO CREEK REPORTED THAT
THE CREEK WAS ROARING WITH VERY HEAVY RUNOFF. THE OBSERVER HAS MEASURED
1.10 INCHES RAIN SINCE THIS MORNING...WITH HEAVY RAIN CONTINUING. THE
SPOTTER SAID THAT SABINO CREEK WAS OUT OF ITS BANKS IN PLACES AND WATER
WAS FLOWING IN ALL THE FLOOD CHANNELS DESIGNED TO HANDLE EXCESSIVE FLOW
IN THE STREAM.  ALL THE STREAMS AND WASHES DRAINING OUT OF THE CATALINA
MOUNTAINS HAVE BEEN FLOWING HEAVILY ALL DAY.  WITH ANOTHER BURST OF HEAVRAIN IN THE PAST COUPLE OF HOURS...THE RUNOFF WILL BE ON THE INCREASE IN
SABINO AND TANQUE VERDE WASHES AS WELL AS THE RILLITO RIVER.
 
FLOODING HAS ALSO BEEN REPORTED IN THE AVRA VALLEY AND MARANA AREAS
TODAY.  SOME PEOPLE WERE REPORTED STRANDED BY RISING WATERS.  THE RAIN
SWOLLEN RILLITO RIVER FLOWS INTO THE SANTA CRUZ WHICH THEN HEADS UP TO
THE MARANA AREA...SO FURTHER PROBLEMS CAN BE EXPECTED.
 
MANY UNBRIDGED CROSSINGS HAVE BEEN CLOSED THROUGHOUT EASTERN PIMA
COUNTY.  PERSONS ARE ADVISED TO STAY HOME TONIGHT. TRAVEL THROUGHOUT
EASTERN PIMA COUNTY IS DISCOURAGED DUE THE FLOODING SITUATION.
 
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
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...EVE`N A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
 
WEBER

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 8, 5:41 AM MSTFlash Flood WarningTWCCochise, Pima, Santa Cruz2 hr
Jan 8, 8:11 AM MSTFlash Flood WarningTWCPima3 hr

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.