Alert archive / Arizona / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 9, NWS Tucson, AZ

July 12, 1995Santa Cruz County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 12, 1995, 1:05 PM MST for Santa Cruz County, Arizona. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Jul 12, 1995, 1:05 PM MST (20:05 UTC)
Expired
Jul 12, 1995, 1:45 PM MST
In force
40 min
Issued by
NWS Tucson, AZ
Area
Whole counties

County Santa Cruz County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 8.1 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 12:00Z on 1995-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 227 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 12:00Z on 1995-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 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
227 J/kg
Mixed-layer CIN
-189 J/kg
Mixed-layer LCL
1523 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
112 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 122003 RRA
SVRTUS
AZC023-122045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON ARIZONA
105 PM MST WED JUL 12 1995
 
THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  145 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL ARIZONA
 
   ...EASTERN SANTA CRUZ COUNTY
 
AT 102 PM...TUCSON DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5
MILES SOUTHEAST OF PATAGONIA NEAR HIGHWAY 83...OR ABOUT 10 TO 15
MILES NORTHEAST OF NOGALES.  THIS STORM WAS NEARLY STATIONARY.
 
THE BOG HOLE WILDERNESS AREA IS NEAR THE CENTER OF THIS STORM.
 
A FLASH FLOOD WARNING IS ALSO IN EFFECT FOR THIS AREA.  MOVE TO
HIGHER AREA IF NEAR A WASH OR STREAM BED.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOURB HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
DRB

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 Jul 11, 1:31 PM MST, 23 hours 34 minutes earlier.

Area forecast discussion, Jul 11, 1:31 PM MST, 23 hours 34 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
130 PM MST TUE JUL 11 1995

88D SHOWING A FEW STG CELLS JUST S OF TUS MOVG NW. ISSUED SPS ON
THIS. THIS ACTIVITY SHOULD DIE OUT AFTER SUNSET. TOMORROW LOOKS
TO BE EVEN MORE ACTIVE. AVN CONTS TO BE THE DRIEST WITH THE NGM
AGAIN THE WETTEST. WL GO WITH COMPROMISE ETA WHICH VERIFED WELL
FROM YESTERDAY. MSTR BAND IN WRN AZ TO MOV INTO ERN AZ WED AFTN
FOR SCATTERED TSTM ACTIVITY. THIS WILL CONT INTO THU. COULD BE
SOME HEAVY RAINS ASSOC WITH THESE STORMS AS AMS PRETTY MOIST.
TUS 2343. COLLINS

.TWC...NONE.

In the hours before

Special weather statement, Jul 12, 11:13 AM MST, 1 hour 52 minutes before
AZZ009-010-121915-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
1113 AM MST WED JUL 12 1995

...THUNDERSTORMS DEVELOPING OVER SANTA CRUZ COUNTY AND SOUTHEAST PIMA
COUNTY...

AT 11 AM MST TUCSON DOPPLER RADAR SHOWED A STRONG THUNDERSTORM 25 MILES
SOUTHWEST OF GREEN VALLEY. THIS STORM WAS MOVING TOWARDS THE NORTHWEST
AT 20 MPH.

THIS STORM WILL MOVE ACROSS THE SOUTHERN PART OF GREEN VALLEY AND 1-19
AROUND 1030 AM.

ANOTHER THUNDERSTORM WAS LOCATED ABOUT 5 MILES SOUTHWEST OF PATAGONIA
AND WILL MOVE ACROSS HIGHWAY 82 AROUND 1120 AM MST.

THESE STORMS ARE CAPABLE OF PRODUCING HEAVY RAIN...STRONG GUSTY
WINDS...AND DEADLY LIGHTNING. PERSONS IN THE PATH OF THESE STORMS
SHOULD TAKE NECESSARY PRECAUTIONS.

CEC
Special weather statement, Jul 12, 11:15 AM MST, 1 hour 50 minutes before
AZZ009-010-121915-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA...CORRECTED TIME IN 2ND
1113 AM MST WED JUL 12 1995               PARAGRAPH...

...THUNDERSTORMS DEVELOPING OVER SANTA CRUZ COUNTY AND SOUTHEAST PIMA
COUNTY...

AT 11 AM MST TUCSON DOPPLER RADAR SHOWED A STRONG THUNDERSTORM 25 MILES
SOUTHWEST OF GREEN VALLEY. THIS STORM WAS MOVING TOWARDS THE NORTHWEST
AT 20 MPH.

THIS STORM WILL MOVE ACROSS THE SOUTHERN PART OF GREEN VALLEY AND 1-19
AROUND 1130 AM.

ANOTHER THUNDERSTORM WAS LOCATED ABOUT 5 MILES SOUTHWEST OF PATAGONIA
AND WILL MOVE ACROSS HIGHWAY 82 AROUND 1120 AM MST.

THESE STORMS ARE CAPABLE OF PRODUCING HEAVY RAIN...STRONG GUSTY
WINDS...AND DEADLY LIGHTNING. PERSONS IN THE PATH OF THESE STORMS
SHOULD TAKE NECESSARY PRECAUTIONS.

CEC
Special weather statement, Jul 12, 11:15 AM MST, 1 hour 50 minutes before
AZZ009-010-121915-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA...CORRECTED TIME IN 2ND
1113 AM MST WED JUL 12 1995               PARAGRAPH...

...THUNDERSTORMS DEVELOPING OVER SANTA CRUZ COUNTY AND SOUTHEAST PIMA
COUNTY...

AT 11 AM MST TUCSON DOPPLER RADAR SHOWED A STRONG THUNDERSTORM 25 MILES
SOUTHWEST OF GREEN VALLEY. THIS STORM WAS MOVING TOWARDS THE NORTHWEST
AT 20 MPH.

THIS STORM WILL MOVE ACROSS THE SOUTHERN PART OF GREEN VALLEY AND 1-19
AROUND 1130 AM.

ANOTHER THUNDERSTORM WAS LOCATED ABOUT 5 MILES SOUTHWEST OF PATAGONIA
AND WILL MOVE ACROSS HIGHWAY 82 AROUND 1120 AM MST.

THESE STORMS ARE CAPABLE OF PRODUCING HEAVY RAIN...STRONG GUSTY
WINDS...AND DEADLY LIGHTNING. PERSONS IN THE PATH OF THESE STORMS
SHOULD TAKE NECESSARY PRECAUTIONS.

CEC
Special weather statement, Jul 12, 12:07 PM MST, 58 minutes before
AZZ009-010-122000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
1207 PM MST WED JUL 12 1995

...STRONG THUNDERSTORMS DEVELOPING RADIPLY OVER SOUTHEAST ARIZONA...

AT 1205 PM...TUCSON DOPPLER RADAR SHOWED STRONG THUNDERSTORMS CONTINUING
TO DEVELOP OVER MUCH OF SANTA CRUZ...SOUTHERN PIMA...AND FAR EASTERN
COCHISE COUNTIES.

THE STRONGEST STORMS WERE LOCATED OVER THE SANTA RITA MOUNTAINS...
10 MILES TO THE SOUTHWEST OF GREEN VALLEY...NEAR ELGIN ON THE
COCHISE..PIMA COUNTY BORDER. THESE STORMS WERE MOVING SLOWLY TO
THE NORTHWEST AT ABOUT 10 MPH AND ARE CAPABLE OF STRONG WIND GUSTS
TO 50 MPH...A PERIOD OF VERY HEAVY RAINFALL...AND PERHAPS SMALL HAIL.

OTHER STORMS WERE DEVELOPING OVER SOUTHEAST PIMA COUNTY FROM AROUND
SELLS AND PAN TAK EXTENDING SOUTHEAST TO INTERSTATE 19 IN SOUTHERN
PIMA COUNTY.

SCATTERED THUNDERSTORMS ARE EXPECTED TO CONTINUE TO DEVELOP FOR THE
REMAINDER OF THE AFTERNOON AND EVENING OVER SOUTHEAST ARIZONA.  THE
POTENTIAL EXISTS FOR STRONG WINDS AND BRIEF BUT HEAVY RAIN WITH THESE
STORMS FOR THE REMAINDER OF THE DAY.

DRB

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
Special weather statement, Jul 12, 12:08 PM MST, 57 minutes before
AZZ009-010-122000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
1207 PM MST WED JUL 12 1995

...STRONG THUNDERSTORMS DEVELOPING RADIPLY OVER SOUTHEAST ARIZONA...

AT 1205 PM...TUCSON DOPPLER RADAR SHOWED STRONG THUNDERSTORMS CONTINUING
TO DEVELOP OVER MUCH OF SANTA CRUZ...SOUTHERN PIMA...AND FAR EASTERN
COCHISE COUNTIES.

THE STRONGEST STORMS WERE LOCATED OVER THE SANTA RITA MOUNTAINS...
10 MILES TO THE SOUTHWEST OF GREEN VALLEY...NEAR ELGIN ON THE
COCHISE..PIMA COUNTY BORDER. THESE STORMS WERE MOVING SLOWLY TO
THE NORTHWEST AT ABOUT 10 MPH AND ARE CAPABLE OF STRONG WIND GUSTS
TO 50 MPH...A PERIOD OF VERY HEAVY RAINFALL...AND PERHAPS SMALL HAIL.

OTHER STORMS WERE DEVELOPING OVER SOUTHEAST PIMA COUNTY FROM AROUND
SELLS AND PAN TAK EXTENDING SOUTHEAST TO INTERSTATE 19 IN SOUTHERN
PIMA COUNTY.

SCATTERED THUNDERSTORMS ARE EXPECTED TO CONTINUE TO DEVELOP FOR THE
REMAINDER OF THE AFTERNOON AND EVENING OVER SOUTHEAST ARIZONA.  THE
POTENTIAL EXISTS FOR STRONG WINDS AND BRIEF BUT HEAVY RAIN WITH THESE
STORMS FOR THE REMAINDER OF THE DAY.

DRB

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
Special weather statement, Jul 12, 12:10 PM MST, 55 minutes before
AZZ009-010-122000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
1207 PM MST WED JUL 12 1995

...STRONG THUNDERSTORMS DEVELOPING RADIPLY OVER SOUTHEAST ARIZONA...

AT 1205 PM...TUCSON DOPPLER RADAR SHOWED STRONG THUNDERSTORMS CONTINUING
TO DEVELOP OVER MUCH OF SANTA CRUZ...SOUTHERN PIMA...AND FAR EASTERN
COCHISE COUNTIES.

THE STRONGEST STORMS WERE LOCATED OVER THE SANTA RITA MOUNTAINS...
10 MILES TO THE SOUTHWEST OF GREEN VALLEY...NEAR ELGIN ON THE
COCHISE..PIMA COUNTY BORDER. THESE STORMS WERE MOVING SLOWLY TO
THE NORTHWEST AT ABOUT 10 MPH AND ARE CAPABLE OF STRONG WIND GUSTS
TO 50 MPH...A PERIOD OF VERY HEAVY RAINFALL...AND PERHAPS SMALL HAIL.

OTHER STORMS WERE DEVELOPING OVER SOUTHEAST PIMA COUNTY FROM AROUND
SELLS AND PAN TAK EXTENDING SOUTHEAST TO INTERSTATE 19 IN SOUTHERN
PIMA COUNTY.

SCATTERED THUNDERSTORMS ARE EXPECTED TO CONTINUE TO DEVELOP FOR THE
REMAINDER OF THE AFTERNOON AND EVENING OVER SOUTHEAST ARIZONA.  THE
POTENTIAL EXISTS FOR STRONG WINDS AND BRIEF BUT HEAVY RAIN WITH THESE
STORMS FOR THE REMAINDER OF THE DAY.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

DRB

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 5:26 PM MSTSevere Thunderstorm WarningTWCPima64 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.