Alert archive / Arizona / Flash Flood Warnings in 2001

Flash Flood Warning 16, NWS Tucson, AZ

July 26, 2001Santa Cruz County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jul 26, 2001, 2:07 PM MST for Santa Cruz County, Arizona. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jul 26, 2001, 2:07 PM MST (21:07 UTC)
Expired
Jul 26, 2001, 3:00 PM MST
In force
53 min
Issued by
NWS Tucson, AZ
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Santa Cruz County, AZ

The radar

The Tucson radar (KEMX), 45 km from the middle of the area, began a volume at 21:06 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 9.1 hours before the alert went out and 75 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 2001-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 76 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 2001-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
76 J/kg
Mixed-layer CIN
-149 J/kg
Mixed-layer LCL
1758 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
19 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 
WGUS55 KTWC 262109
FFWTWC
AZC023-262300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
207 PM MST THU JUL 26 2001

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL SANTA CRUZ COUNTY IN ARIZONA

* UNTIL 400 PM MST

* AT 205 PM MST...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN 6 MILES SOUTH OF PATAGONIA...OR ABOUT 15 MILES NORTHEAST
  OF NOGALES...MOVING NORTH AT 5 MPH.

* THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE NEAR...
  PATAGONIA THROUGH 300 PM MST

THIS SAME AREA RECEIVED HEAVY YESTERDAY...AND UP TO 3 INCHES OF RAIN
IS LIKELY ON SOME OF THE MOUNTAINS NEAR PATAGONIA THROUGH 3 PM. THE
AIRPORT AT NOGALES REPORTED 1.26 INCHES OF RAIN BETWEEN 130 AND 200
PM. SEVERAL WASHES AND CANYONS ALONG HIGHWAY 82 ARE LIKELY TO FLOOD.

LAT...LON 3135 11090 3135 11055 3173 11054 3173 11091

PYTLAK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 5:09 PM MSTSevere Thunderstorm WarningTWCPima36 min
Jul 25, 6:10 PM MSTFlash Flood WarningTWCPima50 min

Nearby

Flash Flood Warnings in Arizona, 2001Every flash flood warning in 2001

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; radar from the NEXRAD Level II archive.