Alert archive / Arizona / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 59, NWS Tucson, AZ

September 28, 1995Pima County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Sep 28, 1995, 1:00 AM MST for Pima County, Arizona. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Sep 28, 1995, 1:00 AM MST (08:00 UTC)
Expired
Sep 28, 1995, 2:00 AM MST
In force
60 min
Issued by
NWS Tucson, AZ
Area
Whole counties

County Pima County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 8.0 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-pSkew-T log-p diagram, Tuscon, AZ at 00:00Z on 1995-09-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 923 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 1995-09-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.193958Sfc1 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
923 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
2346 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUS 280803 RRA
SVRTUS
AZC019-280900-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON ARIZONA
100 AM MST THU SEP 28 1995
 
THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  200 AM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL ARIZONA
 
   ...EASTERN PIMA COUNTY
 
AT 100 AM TUCSON DOPPLER RADAR INDICATED THAT A SEVERE
THUNDERSTORM WAS LOCATED 5 MILES WEST OF GREEN VALLEY. THE
STORM WAS MOVING TO THE NORTHEAST AT 30 MPH. THE GREATER TUCSON
AREA WILL BE AFFECTED BY THIS STORM WITHIN THE NEXT 30 MINUTES.
OTHER LOCATIONS IN THE DIRECT PATH OF THIS STORM INCLUDE GREEN
VALLEY AND SAHUARITA.
 
AT 1210 AM A SPOTTER IN ARIVACA REPORTED BASEBALL SIZE HAIL WITH
THIS PARTICULAR STORM.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 57 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
 
MCCOLLUM
 
&

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.

In the hours before

Special weather statement, Sep 27, 11:09 PM MST, 1 hour 51 minutes before
AZZ007-009-010-280810-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
1109 PM MST WED SEP 27 1995

...STRONG THUNDERSTORMS DEVELOPING IN NORTHERN MEXICO...

AT 1110 PM MST TUCSON DOPPLER RADAR INDICATES STRONG THUNDERSTORMS
DEVELOPING IN MEXICO FROM THE MEXICAN BORDER JUST SOUTH OF SELLS
EXTENDING SOUTHEAST TO 30 MILES SOUTH OF NOGALES.

THE THUNDERSTORMS ARE MOVING NORTH AT 20 TO 25 MPH AND ARE
INCREASING IN BOTH AREAL COVERAGE AND INTENSITY. THE THUNDERSTORMS
SHOULD MOVE INTO THE SELLS AND NOGALES AREAS WITHIN THE NEXT HOUR.

PERSONS IN SOUTHEAST ARIZONA SHOULD BE ALERT TO THESE THUNDERSTORMS
AS THEY MOVE THROUGH THE AREA TONIGHT. SOME OF THESE STORMS MAY CONTAIN
SMALL HAIL...GUSTY WINDS...DEADLY LIGHTNING AND VERY HEAVY DOWNPOURS OF
RAIN.

HOLBROOK

WTPN32PGTW
Special weather statement, Sep 27, 11:12 PM MST, 1 hour 48 minutes before
AZZ007-009-010-280810-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
1109 PM MST WED SEP 27 1995

...STRONG THUNDERSTORMS DEVELOPING IN NORTHERN MEXICO...

AT 1110 PM MST TUCSON DOPPLER RADAR INDICATES STRONG THUNDERSTORMS
DEVELOPING IN MEXICO FROM THE MEXICAN BORDER JUST SOUTH OF SELLS
EXTENDING SOUTHEAST TO 30 MILES SOUTH OF NOGALES.

THE THUNDERSTORMS ARE MOVING NORTH AT 20 TO 25 MPH AND ARE
INCREASING IN BOTH AREAL COVERAGE AND INTENSITY. THE THUNDERSTORMS
SHOULD MOVE INTO THE SELLS AND NOGALES AREAS WITHIN THE NEXT HOUR.

PERSONS IN SOUTHEAST ARIZONA SHOULD BE ALERT TO THESE THUNDERSTORMS
AS THEY MOVE THROUGH THE AREA TONIGHT. SOME OF THESE STORMS MAY CONTAIN
SMALL HAIL...GUSTY WINDS...DEADLY LIGHTNING AND VERY HEAVY DOWNPOURS OF
RAIN.

HOLBROOK

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 27, 5:10 PM MSTSevere Thunderstorm WarningTWCCochise, Pima65 min
Sep 27, 11:41 PM MSTSevere Thunderstorm WarningTWCPima49 min
Sep 28, 12:01 AM MSTTornado WarningTWCPima29 min
Sep 28, 12:17 AM MSTSevere Thunderstorm WarningTWCPima43 min
Sep 28, 12:32 AM MSTSevere Thunderstorm WarningTWCPima43 min
Sep 28, 12:52 AM MSTSevere Thunderstorm WarningTWCCochise68 min
Sep 28, 1:31 AM MSTFlash Flood WarningTWCPima119 min
Sep 28, 1:55 AM MSTSevere Thunderstorm WarningTWCPima50 min
Sep 28, 2:44 AM MSTSevere Thunderstorm WarningTWCCochise46 min
Sep 28, 3:31 AM MSTFlash Flood WarningTWCPima, Santa Cruz119 min
Sep 28, 4:41 AM MSTSevere Thunderstorm WarningTWCCochise, Pima64 min
Sep 28, 6:15 AM MSTSevere Thunderstorm WarningTWCGraham2 hr
Sep 28, 7:25 AM MSTSevere Thunderstorm WarningTWCGraham50 min

Nearby

Severe Thunderstorm Warnings in Arizona, 1995Every severe thunderstorm warning in 1995

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.