Alert archive / Arizona / Flash Flood Warnings in 1997

Flash Flood Warning 62, NWS Tucson, AZ

October 7, 1997Cochise County, Arizona

NWS Tucson, AZ issued this flash flood warning at Oct 7, 1997, 3:54 PM MST for Cochise County, Arizona. It was in force for 91 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 7, 1997, 3:54 PM MST (22:54 UTC)
Expired
Oct 7, 1997, 5:25 PM MST
In force
91 min
Issued by
NWS Tucson, AZ
Area
Whole counties

County Cochise County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 10.9 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 1997-10-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 202 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 12:00Z on 1997-10-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
202 J/kg
Mixed-layer CIN
-132 J/kg
Mixed-layer LCL
1944 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
45 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 072255
FFWTUS
AZC003-080025-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
354 PM MST TUE OCT 7 1997

THE NATIONAL WEATHER SERVICE IN TUCSON AZ HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 525 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHEASTERN ARIZONA

   ...SOUTH CENTRAL AND SOUTHEASTERN COCHISE COUNTY

AT 350 PM DOPPLER RADAR CONTINUED TO DETECT HEAVY RAINFALL IN
SOUTHCENTRAL AND SOUTHEAST COCLHISE COUNTY. THIS COMBINED WITH
PREVIOUS RAINFALL AND RUNOFF FROM NORTHERN MEXICO IS EXPECTED TO
CAUSE FLASH FLOODING AROUND SOUTHCENTRAL AND SOUTHEAST COCHISE
COUNTY...INCLUDING NACO...DOUGLAS AND ELFRIDA.

MEYER

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tucson, AZ wrote its last area forecast discussion before this flash flood warning went out at Oct 7, 2:30 PM MST, 1 hour 24 minutes earlier.

Area forecast discussion, Oct 7, 2:30 PM MST, 1 hour 24 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
230 PM MST TUE OCT 7 1997

COLD FRONT AND ASSOCIATED SHOWERS AND THUNDERSTORMS WILL BE EXITING
SOUTHEAST AZ INTO NEW MEXICO EARLY THIS EVENING. CORE OF COLD POOL
ALOFT ASSOCIATED WITH SHORT WAVE TROUGH CURRENTLY OVER FAR
WEST-CENTRAL AZ BEGINNING TO TURN NORTHEASTWARD PER WATER VAPOR
PICTURES AND MODELS SHOW SAME THING. THEREFORE MAIN THREAT FROM
COLD POOL ALOFT INDUCED SHOWERS WILL BE TO THE NORTH OF OUR AREA BUT
THE MENTION OF ISOLATED EARLY EVENING SHOWERS AND THUNDERSTORMS IN
THE WESTERN ZONES EXCEPT WESTERN PIMA COUNTY STILL WARRENTED DUE TO
LINGERING MOISTURE AND SOME TROUGH DYNAMICS. THE EASTERN ZONES
WILL STILL SEE SCATTERED EARLY EVENING SHOWERS AND THUNDERSTORMS
ASSOCIATED WITH THE COLD FRONT THEN TAPPERING OFF WITH CLEARING
AFTER MIDNIGHT. OTHERWISE A COOL NIGHT IN STORE FOR SOUTHEAST AZ IN
THE WAKE OF THE COLD FRONT WITH READINGS IN THE 40S AND 50S. SHORT
WAVE RIDGE BUILDS INTO SOUTHEAST AZ ON WEDNESDAY FOR MOSTLY SUNNY
SKIES...EXCEPT WHITE MOUNTAINS OF NORTHERN GREENLEE COUNTY WHERE
SKIES WILL REMAIN PARTLY CLOUDY DUE TO RESIDUAL MOISTURE...BUT
CONTINUE COOL FOR THIS TIME OF YEAR. TEMPERATURES UP 5-7 DEGREES
THURSDAY AS HEIGHTS AND THICKNESS RISE UNDER BUILDING RIDGE. WINDS
SHOULD RAPIDLY DIMINISH THIS EVENING BEHIND COLD FRONT.
TUS 0000. COLLINS

TUS...NONE

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 7, 7:58 AM MSTSevere Thunderstorm WarningTWCPima62 min
Oct 7, 8:46 AM MSTSevere Thunderstorm WarningTWCPima, Pinal59 min
Oct 7, 9:45 AM MSTSevere Thunderstorm WarningTWCPima, Pinal60 min
Oct 7, 10:31 AM MSTSevere Thunderstorm WarningTWCSanta Cruz59 min
Oct 7, 10:31 AM MSTSevere Thunderstorm WarningTWCSanta Cruz69 min
Oct 7, 11:58 AM MSTSevere Thunderstorm WarningTWCCochise47 min
Oct 7, 12:49 PM MSTSevere Thunderstorm WarningTWCPinal36 min
Oct 7, 2:37 PM MSTFlash Flood WarningTWCPima88 min

Nearby

Flash Flood Warnings in Arizona, 1997Every flash flood warning in 1997

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.