Alert archive / Arizona / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 52, NWS Tucson, AZ

September 18, 1995Santa Cruz County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Sep 18, 1995, 5:04 PM MST for Santa Cruz County, Arizona. It was in force for 11 min.

The area

The counties it named.

The facts

Issued
Sep 18, 1995, 5:04 PM MST (00:04 UTC)
Expired
Sep 18, 1995, 5:15 PM MST
In force
11 min
Issued by
NWS Tucson, AZ
Area
Whole counties

County Santa Cruz County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 0.1 hours before the alert went out and 72 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 1995-09-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 184 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 1995-09-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
184 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
2673 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
58 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 190004 RRA
SVRTUS
AZC023-190015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON ARIZONA
504 PM MST MON SEP 18 1995
 
THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  515 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL ARIZONA
 
   ...SOUTHEASTERN SANTA CRUZ COUNTY
 
TUCSON DOPPLER RADAR INDICATES A SEVERE THUNDERSTORM WAS BUILDING OFF
THE PATAGONIA MOUNTAINS MOVING EAST. THIS IS MOSTLY A REMOTE AREA OF
EXTREME SOUTHEAST SANTA CRUZ COUNTY.
 
SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 57 MPH...LARGE
HAIL...AND BRIEF HEAVY RAIN.
 
THIS STORM WILL MOVE INTO THE HUACHUCA MOUNTAINS BY 515 PM.
 
END/PRF

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 18, 11:32 AM MST, 5 hours 32 minutes before
AZZ009-010-007-181930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
1132 AM MST MON SEP 18 1995

...THUNDERSTORMS DEVELOPING OVER PIMA COUNTY...

AT 1130 AM MST...TUCSON DOPPLER WEATHER RADAR SHOWED WIDELY SCATTERED
THUNDERSTORM WERE DEVELOPING RADIPLY OVER PIMA COUNTY.  THE STRONGEST
STORM WAS LOCATED OVER NORTHCENTRAL PIMA COUNTY BETWEEN AJO AND
VENTANA.  THIS STORM WAS MOVING TO THE SOUTHEAST AT 15 MPH AND WILL
MOVE NEAR THE TOWN OF HICKIWAN BY NOON.  EXPECT HEAVY RAIN...HAIL...
GUSTY WINDS TO 40 MPH...AND FREQUENT LIGHTNING FROM THIS STORM.

ANOTHER STRONG STORM WAS LOCATED 5 MILES EAST OF GREATERVILLE...
WHICH IS 15 MILES SOUTHEAST OF GREEN VALLEY.  THIS STORM HAD JUST
DEVELOPED AND NO MOVEMENT WAS YET AVAILABLE.

...ACTIVE THUNDERSTORM DAY EXPECTED ACROSS SOUTHEAST ARIZONA...

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS ALL OF
SOUTHEAST ARIZONA THIS AFTERNOON AND EVENING.  ATMOSPHERIC CONDITIONS
ARE SUCH THAT STRONG...PERHAPS SEVERE...THUNDERSTORMS ARE POSSIBLE
AROUND SOUTHEAST ARIZONA THIS AFTERNOON.  VERY HEAVY RAIN IS ALSO
LIKELY TO ACCOMPANY THESE STORMS.

PERSONS PLANNING OUTDOOR ACTIVITY SHOULD BE ALERT TO RAPIDLY
CHANGING WEATHER CONDITIONS AND BE PREPARED TO SEEK SHELTER
QUICKLY SHOULD A STORM APPROACH.
DRB
Special weather statement, Sep 18, 12:50 PM MST, 4 hours 14 minutes before
AZZ009-182045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
1250 PM MST MON SEP 18 1995

...STRONG THUNDERSTROM WEST OF GREEN VALLEY...

AT 1245 PM...TUCSON DOPPLER RADAR INDICATED A STRONG THUNDERSTORM
5 MILES WEST OF GREEN VALLEY. MOVEMENT OF THIS STORM IS NORTHEAST
AROUND 10 MPH. THIS STORM IS CAPABLE OF PRODUCING STRONG GUSTY
WINDS...BRIEF HEAVY RAIN...SMALL HAIL AND DEADLY LIGHTNING. THIS
STORM WILL MOVE THROUGH THE GREEN VALLEY AREA DURING THE NEXT
HOUR. SO RESIDENTS OF GREEN VALLEY AND MOTORISTS ON INTERSTATE 19
SHOULD BE AWARE OF CHANGING WEATHER CONDITIONS.

JRG
Special weather statement, Sep 18, 12:50 PM MST, 4 hours 14 minutes before
AZZ009-182045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
1250 PM MST MON SEP 18 1995

...STRONG THUNDERSTROM WEST OF GREEN VALLEY...

AT 1245 PM...TUCSON DOPPLER RADAR INDICATED A STRONG THUNDERSTORM
5 MILES WEST OF GREEN VALLEY. MOVEMENT OF THIS STORM IS NORTHEAST
AROUND 10 MPH. THIS STORM IS CAPABLE OF PRODUCING STRONG GUSTY
WINDS...BRIEF HEAVY RAIN...SMALL HAIL AND DEADLY LIGHTNING. THIS
STORM WILL MOVE THROUGH THE GREEN VALLEY AREA DURING THE NEXT
HOUR. SO RESIDENTS OF GREEN VALLEY AND MOTORISTS ON INTERSTATE 19
SHOULD BE AWARE OF CHANGING WEATHER CONDITIONS.

JRG
Special weather statement, Sep 18, 1:45 PM MST, 3 hours 19 minutes before
AZZ007-009-010-182145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
145 PM MST MON SEP 18 1995

...THUNDERSTORM ACTIVITY INCREASING OVER SOUTHERN ARIZONA...

AT 143 PM...TUCSON DOPPLER RADAR SHOWED INCREASING THUNDERSTORM
ACTIVITY OVER SOUTHERN ARIZONA.  THE STRONGEST STORMS WERE OVER
CENTRAL AND EASTERN PIMA COUNTY...AND ANOTHER STRONG STORM WAS JUST
WEST OF DOUGLAS IN COCHISE COUNTY.  STORM MOVEMENT IS GENERALLY TO
THE NORTHEAST AT ABOUT 10 MPH.  BE PREPARED FOR BRIEF HEAVY
RAIN...GUSTY WINDS...SMALL HAIL...AND FREQUENT LIGHTNING.

ARB

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 18, 6:41 PM MSTSevere Thunderstorm WarningTWCCochise, Santa Cruz19 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.