Alert archive / Arizona / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 85, NWS Tucson, AZ

August 17, 1996Cochise County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Aug 17, 1996, 6:45 PM MST for Cochise County, Arizona. It was in force for 30 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 17, 1996, 6:45 PM MST (01:45 UTC)
Expired
Aug 17, 1996, 7:15 PM MST
In force
30 min
Issued by
NWS Tucson, AZ
Area
Whole counties

County Cochise County, AZ

What was reported inside it

TimeReportWhereRemark
Aug 17, 7:00 PM MSTThunderstorm Wind 52Elfrida, AZ

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 1.8 hours before the alert went out and 113 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 00:00Z on 1996-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 408 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 00:00Z on 1996-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
408 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
2776 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
83 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 180142
SVRTUS
AZC003-180215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON ARIZONA
645 PM MST SAT AUG 17 1996
 
THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST ARIZONA
 
   ...SOUTHEASTERN COCHISE COUNTY
 
AT 635 PM MST..TUCSON DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM NEAR ELFRIDA AND WILL AFFECT ELFRIDA OVER THE NEXT
15 TO 30 MINUTES. MARBLE SIZED HAIL WAS REPORTED BY A SPOTTER
NEAR ELFRIDA. THE STORM IS SLOWLY MOVING TO THE SOUTHWEST AROUND
5 MILES.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 58
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
GLUECK

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 17, 2:09 PM MST, 4 hours 36 minutes earlier.

Area forecast discussion, Aug 17, 2:09 PM MST, 4 hours 36 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
200 PM MST SAT AUG 17 1996

GULF SURGE MSTR HAS MOVD INTO SE AZ AS TUS HAS HELD UPR 50
DEWPOINT EVEN THO AM SOUNDING ONLY SHOWED 50 OR SO DEWPOINT IF
WE MIXED. WITH NRLY UPR LVL WNDS AND DIV ALOFT STORMS SHOULD BE
ABLE TO GO SEVERE. FOR SUN...IF TODAY IS BIG EVENT IT SHOULD BE
AN OFF DAY BUT WITH S/W TROF PASSING BY THE NORTH AND LOTSA MSTR
JUST TO OUR SOUTH GENERAL ALTHOUGH WEAKER STORMS MAY BE IN AREA.
SO WILL KEEP POPS UP BUT MORE THAN LIKELY IT WILL BE AN OFF DAY.
IF SO...MON MAY BE BACK TO NORMAL.

SO NOW ITS JUST SIT AND WATCH FOR THE REST OF THE AFTN. RADAR IS
BACK BUT UNRELIABLE. THANX TO PHX AND FLG FOR KEEPING AN EYE ON
THINGS AND SINCE RADAR WILL BE OUT THRU MON WILL SEND THEM SOME
VISINE. TUS 4444. HOLBROOK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 17, 6:45 PM MSTFlash Flood WarningTWCCochise30 min
Aug 17, 7:06 PM MSTFlash Flood WarningTWCCochise99 min
Aug 17, 8:07 PM MSTFlash Flood WarningTWCCochise68 min
Aug 17, 8:07 PM MSTSevere Thunderstorm WarningTWCCochise68 min
Aug 17, 8:37 PM MSTSevere Thunderstorm WarningTWCCochise38 min
Aug 17, 8:54 PM MSTFlash Flood WarningTWCCochise81 min
Aug 18, 1:36 PM MSTFlash Flood WarningTWCPima, Santa Cruz2 hr

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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.