Alert archive / Arizona / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 61, NWS Tucson, AZ

July 29, 1996Pima County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 29, 1996, 3:21 PM MST for Pima County, Arizona. It was in force for 69 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
Jul 29, 1996, 3:21 PM MST (22:21 UTC)
Expired
Jul 29, 1996, 4:30 PM MST
In force
69 min
Issued by
NWS Tucson, AZ
Area
Whole counties

County Pima County, AZ

The radar

The Tucson radar (KEMX), 112 km from the middle of the area, began a volume at 22:21 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, 10.4 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 12:00Z on 1996-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 659 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 1996-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 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
659 J/kg
Mixed-layer CIN
-157 J/kg
Mixed-layer LCL
2078 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
-5 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 severe thunderstorm 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 severe thunderstorm warning went out at Jul 29, 2:18 PM MST, 1 hour 3 minutes earlier.

Area forecast discussion, Jul 29, 2:18 PM MST, 1 hour 3 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
200 PM MST MON JUL 29 1996

TSTMS FIRING ON ALL THE MTNS AND DEWPOINT FALLING OFF BUT WE MAY
STILL GET A FEW OFF OF MTNS. DONT SEE A LOT TO CHANGE THINGS NEXT
FEW DAYS SO HAVE BROAD BRUSHED FCST. GYM WAS WET THIS MORNING AND
IF WE CAN GET ANOTHER GULF SURGE GOING THINGS MAY PICK UP AGAIN.
STILL NEED  MRF PICKS OUR POPS UP AGAIN BY FRI AND ACCEPT THIS
SCENARIO. STILL WITH HI VERY CLOSE TO US SOME SUPRESSION WILL
TAKE PLACE.

72HR FCST FOR HRCN DUG LUKS INTERESTING...MAY HELP INITIATE GULF
SURGE. TUS 3232. HOLBROOK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 2:33 PM MSTSevere Thunderstorm WarningTWCPima, Santa Cruz57 min
Jul 29, 3:45 PM MSTFlash Flood WarningTWCPima60 min
Jul 29, 4:41 PM MSTFlash Flood WarningTWCPima64 min

Nearby

Severe Thunderstorm Warnings in Arizona, 1996Every severe thunderstorm warning in 1996

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.