Alert archive / Arizona / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 13, NWS Tucson, AZ

June 6, 1997Pinal County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jun 6, 1997, 12:37 PM MST for Pinal County, Arizona. It was in force for 33 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
Jun 6, 1997, 12:37 PM MST (19:37 UTC)
Expired
Jun 6, 1997, 1:10 PM MST
In force
33 min
Issued by
NWS Tucson, AZ
Area
Whole counties

County Pinal County, AZ

The radar

The Phoenix radar (KIWA), 52 km from the middle of the area, began a volume at 19:38 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 6, 12:00 PM MSTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 7.6 hours before the alert went out and 92 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 1997-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1997-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3313 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
265 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 
TTAA00 KTUS 061937
SVRTUS
AZC021-062010-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
1237 PM MST FRI JUN 6 1997

THE NATIONAL WEATHER SERVICE IN TUCSON AZ HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 110 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTH CENTRAL ARIZONA

   ...SOUTHEASTERN PINAL COUNTY
 
AT 1235 PM MST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 11
MILES SOUTH OF ORACLE OR 8 MILES SOUTHEAST OF SADDLEBROOKE MOVING
NORTH AT 40 MPH.

SOME LOCATIONS IN THE PATH OF THIS STORM ARE...
SADDLEBROOKE            BY 1238 PM MST
ORACLE JUNCTION         BY 1242 PM MST
ORACLE                  BY 1247 PM MST
MAMMOTH                 BY 1258 PM MST

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 1:58 PM MSTSevere Thunderstorm WarningTWCCochise32 min
Jun 6, 2:59 PM MSTSevere Thunderstorm WarningTWCCochise61 min
Jun 6, 4:58 PM MSTSevere Thunderstorm WarningTWCGraham47 min

Nearby

Severe Thunderstorm Warnings in Arizona, 1997Every severe thunderstorm warning in 1997

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.