Alert archive / Arizona / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 26, NWS Tucson, AZ

July 6, 1996Pima County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 6, 1996, 6:36 PM MST for Pima County, Arizona. It was in force for 54 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 6, 1996, 6:36 PM MST (01:36 UTC)
Expired: Jul 6, 1996, 7:30 PM MST
In force: 54 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 01:25 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, 1.6 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: 478 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 3390 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: -20 m²/s²
0-3 km storm-relative helicity: 34 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 6, 2:22 PM MST, 4 hours 14 minutes earlier.

Area forecast discussion, Jul 6, 2:22 PM MST, 4 hours 14 minutes before

SOUTHEAST ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
220 PM MST SAT JUL 6 1996

ECHOS POPD IN ZN 25 AS EARLY AS 17Z THIS MRNG WITH .5 INCH
HAIL BY 18Z. LTL CHG IN SYNOPTIC PATTERN. UPR HI REMAINS OVR
AZ/NM AREA WITH ELY FLOW AT H5.  MODELS SHOWG UPR WV MOVG WWD
ACRS MEXICO TO SRN BAJA AREA.  IF THIS INCRS CLD CVR OVR SRN
GLF CA...MAY BRING BACK GLF SURGE TYPE MSTR INFLUX.  ON SUN...
MODELS TRYG TO INCR LOW LVL CONVERGENCE OVR S|IERRA MADRES.
MON...AVN KEEPING 80-90 PCT RH AT H5 OVR ZN25. WILL GO WITH
SCT TSTMS IN FAR ERN ZNS. ALSO HGTS AND THKN DOWN A BIT. ALL
MOS GUIDANCE INCRG CLDS AND DROPPING MAX TEMPS 2-6 DEGREES. WILL
GO ALONG WITH THIS.

In the hours before

Local storm report, Jul 6, 6:22 PM MST, 14 minutes before

LOCAL STORM REPORT...CORRECT DATE OF REPORT
NATIONAL WEATHER SERVICE TUCSON
620 PM MST SAT JUL 6 1996

TIME(MST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

 554 PM    5 EAST HUACHUCA CITY      AZ   62 MPH WIND MEASURED BY
           COCHISE                        AN AUTOMATED STATION IN
                                          SOUTHWEST COCHISE COUNTY
                                          JUST EAST" OF HUACHUCA CITY

 520 PM    BENSON                    AZ   6 INCH DIAMETER TREE LIMB
           COCHISE                        DOWN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 5:03 PM MST	Severe Thunderstorm Warning	TWC	Cochise	42 min
Jul 6, 5:50 PM MST	Severe Thunderstorm Warning	TWC	Cochise, Pima, Santa Cruz	40 min
Jul 6, 5:58 PM MST	Flash Flood Warning	TWC	Cochise	62 min
Jul 6, 6:36 PM MST	Flash Flood Warning	TWC	Pima	54 min
Jul 6, 7:43 PM MST	Flash Flood Warning	TWC	Pima	92 min
Jul 7, 3:30 PM MST	Severe Thunderstorm Warning	TWC	Santa Cruz	30 min
Jul 7, 4:42 PM MST	Flash Flood Warning	TWC	Pima	48 min
Jul 7, 4:42 PM MST	Severe Thunderstorm Warning	TWC	Pima	48 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.