Alert archive / Arizona / Flash Flood Warnings in 1995

Flash Flood Warning 4, NWS Tucson, AZ

September 28, 1995Pima County, Santa Cruz County, Arizona

NWS Tucson, AZ issued this flash flood warning at Sep 28, 1995, 3:31 AM MST for Pima County, Santa Cruz County, Arizona. It was in force for 119 min.

The area

The counties it named.

The facts

Issued
Sep 28, 1995, 3:31 AM MST (10:31 UTC)
Expired
Sep 28, 1995, 5:30 AM MST
In force
119 min
Issued by
NWS Tucson, AZ
Area
Whole counties

Counties Pima County, AZ, Santa Cruz County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 10.5 hours before the alert went out and 56 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 1995-09-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 923 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 00:00Z on 1995-09-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.193958Sfc1 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
923 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
2346 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
42 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 281033
FFWTUS
AZC019-023-281230-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON ARIZONA
331 AM MST THU SEP 28 1995
 
THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  530 AM MST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL ARIZONA
 
   ...EASTERN PIMA COUNTY...SANTA CRUZ COUNTY
 
AT 330 AM TUCSON DOPPLER RADAR SHOWED A LARGE AREA OF THUNDERSTORMS
...SOME PRODUCING HEAVY RAIN...ACROSS EASTERN PIMA COUNTY AND SANTA
CRUZ COUNTY. THE INDIVIDUAL STORMS ARE MOVING NORTH NORTHEAST AT 25
TO 30 MPH.
 
NEW THUNDERSTORMS ARE DEVELOPING IN WESTERN SANTA CRUZ COUNTY AND
NORTHERN MEXICO AND WILL MOVE INTO THE TUCSON METRO AREA
WITHIN THE NEXT HOUR. RAINFALL OF OVER ONE AND A HALF INCHES HAS
FALLEN IN EASTERN PIMA COUNTY AND AN ADDITIONAL INCH OF RAIN MAY FALL
ACROSS THE AREA EARLY THIS MORNING.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO REC OGNIZE
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.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 27, 5:10 PM MSTSevere Thunderstorm WarningTWCCochise, Pima65 min
Sep 27, 11:41 PM MSTSevere Thunderstorm WarningTWCPima49 min
Sep 28, 12:01 AM MSTTornado WarningTWCPima29 min
Sep 28, 12:17 AM MSTSevere Thunderstorm WarningTWCPima43 min
Sep 28, 12:32 AM MSTSevere Thunderstorm WarningTWCPima43 min
Sep 28, 12:52 AM MSTSevere Thunderstorm WarningTWCCochise68 min
Sep 28, 1:00 AM MSTSevere Thunderstorm WarningTWCPima60 min
Sep 28, 1:31 AM MSTFlash Flood WarningTWCPima119 min
Sep 28, 1:55 AM MSTSevere Thunderstorm WarningTWCPima50 min
Sep 28, 2:44 AM MSTSevere Thunderstorm WarningTWCCochise46 min
Sep 28, 4:41 AM MSTSevere Thunderstorm WarningTWCCochise, Pima64 min
Sep 28, 6:15 AM MSTSevere Thunderstorm WarningTWCGraham2 hr
Sep 28, 7:25 AM MSTSevere Thunderstorm WarningTWCGraham50 min

Nearby

Flash Flood Warnings in Arizona, 1995Every flash flood warning in 1995

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.