Alert archive / Arizona / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 65, NWS Tucson, AZ

August 2, 1996Pima County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Aug 2, 1996, 12:30 AM MST for Pima County, Arizona. It was in force for 60 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: Aug 2, 1996, 12:30 AM MST (07:30 UTC)
Expired: Aug 2, 1996, 1:30 AM MST
In force: 60 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 07:32 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 00:00Z, 7.5 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: -71 J/kg
Mixed-layer LCL: 2698 m above ground
0-6 km bulk shear: 1 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 107 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 Aug 1, 8:52 PM MST, 3 hours 38 minutes earlier.

Area forecast discussion, Aug 1, 8:52 PM MST, 3 hours 38 minutes before

SOUTHEAST ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
900 PM MST THU AUG 01 1996

00Z TUS SOUNDG ON THE STABLE SIDE AND NO SVR WX IN CWA SO FAR
TNGT. THOUGH...SOME HEAVY RAINERS GENERATED BY OUTFLOW FRM THE
RIM. ANOTHER LINE OF TSTMS IN NW MEX MOVG OVR THE SRN GLF AREA.
DOUGLAS STILL ON A NWWD TRACK WITH MID-UPR LVL MSTR SPREADG AS
FAR N AS ABOUT 25N. FRI...PAC TROF PUSHES UPR HI SE OF TUS WITH
SLY WIND AT MID-UPR LVLS.  MODELS SHOW WK UPR LOW ALONG SRN ZNS
MOVG WWD AROUND BOTTOM OF HI.  CURRENT FCST BETTING ON GLF SURGE
MSTR TO MAKE IT INTO AREA FRI/FRI NGT.  WITH LESS CLDS...MORE HTG
AND DEFORMATION ZONE OVR SRN AZ SHOULD SEE MORE CONVECTIVE
ACTVTY. SAT...NEW ETA CONTINUING TREND OF PAC TROF PUSHG UPR HI
INTO SE NM. MID LVL FLOW S-SWLY. AVN SHOWG MINOR DECR IN
MSTR...BUT NOT SIGNIFICANT. WILL GO WITH STANDARD LOW GRADE
MONSOON. TUS 2242.

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 11:30 PM MST	Flash Flood Warning	TWC	Pima	60 min
Aug 2, 12:30 AM MST	Flash Flood Warning	TWC	Pima	60 min
Aug 2, 2:55 PM MST	Flash Flood Warning	TWC	Cochise	65 min

Nearby

Severe Thunderstorm Warnings in Arizona, 1996 Every 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.