Alert archive / Arizona / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 18, NWS Tucson, AZ

June 6, 1997Greenlee County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jun 6, 1997, 8:20 PM MST for Greenlee County, Arizona. It was in force for 30 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, 8:20 PM MST (03:20 UTC)
Expired: Jun 6, 1997, 8:50 PM MST
In force: 30 min
Issued by: NWS Tucson, AZ
Area: Whole counties

County Greenlee County, AZ

The radar

The Tucson radar (KEMX), 196 km from the middle of the area, began a volume at 03:19 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, 3.3 hours before the alert went out and 194 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: 94 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 3350 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KTUS 070320 RRA
SVRTUS
AZC011-070350-

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

THE NATIONAL WEATHER SERVICE IN TUCSON AZ HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 850 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHEASTERN ARIZONA

   ...SOUTHERN GREENLEE COUNTY
 
AT 817 PM MST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 15
MILES SOUTHEAST OF CLIFTON MOVING NORTH AT 45 MPH. EXPECT STRONG
GUSTY WINDS TO NEAR 60 MPH AND 3/4 INCH DIAMETER HAIL.

SOME LOCATIONS IN THE PATH OF THIS STORM ARE...
CLIFTON                 BY 826 PM MST


OKULSKI

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 Jun 6, 2:14 PM MST, 6 hours 6 minutes earlier.

Area forecast discussion, Jun 6, 2:14 PM MST, 6 hours 6 minutes before

SOUTHEAST ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
200 PM MST FRI JUN 6 1997

MSTR AXIS REMAINS STNRY FROM PHX TO TUS SOUTH INTO MEX WITH DRY AIR
BETWEEN TUS AND AJO THE TSTMS WRAPPING AROUND UPR LOW. QUESTION IS
IF ANY MSTR WILL MOVE IN FROM SOUTH TO DEVELOP STORMS OVR REMAINDER
OF AREA. HAVE HAD SOME STRONG WNDS AT SAF THAT DID SOME DAMAGE AND
SVR HAIL JUST REPORTED IN CNTRL COCHISE COUNTY AND STORMS DO SEEM
TO BE INTENSIFYING.

UPR LOW WILL HANG AROUND ONE MORE DAY AND EXPECT ANOTHER ROUND OF
STORMS AGAIN SAT BUT LESS WNDS WIL ONLY MAKE HAIL THE THREAT. THEN
DRY AIR WILL WORK IN SUN WITH THE WARMING TREND. ONLY MTN TSTMS IN FAR
ERN ZONES THEN SUMMER STARTS AGAIN SUN. TUS 5440 HOLBROOK.

TUS...SVR TSTM WATCH UNTIL 700 PM ALL ZONES.
      WND ADVSY ALL ZONES XCPT 26 UNTIL 700 PM MST.

In the hours before

Local storm report, Jun 6, 3:14 PM MST, 5 hours 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON
315 PM MST FRI JUN 6 1997

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

1215 PM    SAF8FORD                   AZ   WIND
06/06/97   GRAHAM                         ROOF BLOWN OFF
                                          DOWNED POWER POLES
                                          LARGE LIMBS OFF TREES

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 6, 7:11 PM MST	Severe Thunderstorm Warning	TWC	Graham, Greenlee	24 min
Jun 6, 9:12 PM MST	Severe Thunderstorm Warning	TWC	Greenlee	33 min

Nearby

Severe Thunderstorm Warnings in Arizona, 1997 Every 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.