Alert archive / Arizona / Flash Flood Warnings in 1988

Flash Flood Warning 3, NWS Tucson, AZ

July 29, 1988Pima County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jul 29, 1988, 11:30 PM MST for Pima County, Arizona. It was in force for 90 min.

The area

The counties it named.

The facts

Issued
Jul 29, 1988, 11:30 PM MST (06:30 UTC)
Expired
Jul 30, 1988, 1:00 AM MST
In force
90 min
Issued by
NWS Tucson, AZ
Area
Whole counties

County Pima County, AZ

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 6.5 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 1988-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2536 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 1988-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 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
2536 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
1460 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Special weather statement, Jul 29, 6:38 PM MST, 4 hours 52 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
615 PM MST FRI JUL 29 1988

AT 615 PM TUCSON WEATHER RADAR INDICATED A LINE OF STRONG THUNDERSTORMS
EXTENDING FROM JUST EAST OF DOUGLAS NORTHWESTWARD THRU CENTRAL COCHISE
COUNTY TO SOUTHWEST GRAHAM COUNTY AND EXTENDS NORTHWEST TO NEAR GLOBE.
ALSO STRONG THUNDERSTORMS ARE PRESENT IN NORTH CENTRAL PIMA COUNTY JUST
NORTHEAST OF AJO. THESE STORMS ARE MOVING SOUTHWEST AT 15 TO 20 MPH.

IT IS EXPECTED THAT EASTERN PIMA COUNTY WILL BE AFFECTED IN THE NEXT
TWO HOURS BY THIS LINE OF STORMS. ALL PERSONS IN THE PATH SHOULD TAKE
PRECAUTIONS AND STAY ALERT TO THREATENING WEATHER. THE THUNDERSTOMRS
TODAY HAVE BEEN PRODUCING HEAVY RAIN AND SOME% HAIL HAS BEEN REPORTED.

NORDQUIST

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 7:35 PM MSTSevere Thunderstorm WarningTWCCochise55 min
Jul 29, 8:45 PM MSTSevere Thunderstorm WarningTWCPima2 hr

Nearby

Flash Flood Warnings in Arizona, 1988Every flash flood warning in 1988

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.