Alert archive / Arizona / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 7, NWS Tucson, AZ

July 11, 1995Pima County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 11, 1995, 4:50 PM MST for Pima County, Arizona. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Jul 11, 1995, 4:50 PM MST (23:50 UTC)
Expired
Jul 11, 1995, 5:30 PM MST
In force
40 min
Issued by
NWS Tucson, AZ
Area
Whole counties

County Pima County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 11.8 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 12:00Z on 1995-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 16 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 1995-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 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
16 J/kg
Mixed-layer CIN
-336 J/kg
Mixed-layer LCL
2606 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
60 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 112348 RRA
SVRTUS
AZC019-120030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON ARIZONA
450 PM MST TUE JUL 11 1995
 
THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  530 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL ARIZONA
 
   ...SOUTH EAST PIMA COUNTY
 
...SEVERE THUNDERSTORM IN SOUTH EASTERN PIMA COUNTY...
 
AT 450 PM MST...TUCSON DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM 5 TO
10 MILES SOUTHWEST OF GREEN VALLEY MOVING TO THE NORTHWEST AT 20 MPH.
THIS STORM WAS MOVING TOWARD SIERRITAS MOUNTAINS IN A REMOTE PART OF
PIMA COUNTY.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
 SRT

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, 3 hours 19 minutes earlier.

Area forecast discussion, Jul 11, 1:31 PM MST, 3 hours 19 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 11, 1:55 PM MST, 2 hours 55 minutes before
AZZ009-010-112145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
157 PM MST TUE JUL 11 1995

...STRONG THUNDERSTORM SOUTHWEST OF THE TUCSON AREA...

AT 155 PM TUCSON DOPPLER RADAR SHOWED A STRONG THUNDERSTORM 10 TO 15
MILES SOUTHWEST OF DOWNTOWN TUCSON MOVING TO THE WEST..NORTHWEST AT
15 MPH.  THIS STORM WAS MOVING TOWARD THREE POINTS...WHICH IS NEAR THE
JUNCTION OF HIGHWAYS 86 AND 286.  IT SHOULD CROSS HIGHWAY 86 BETWEEN 215
AND 230 PM.

THIS STORM IS CAPABLE OF BRIEF BUT HEAVY RAIN AND STRONG GUSTY WINDS
TO 40 MPH CREATING BLOWING DUST.

OTHER STORMS WERE WIDELY SCATTERED OVER WESTERN PIMA AND SANTA CRUZ
COUNTIES...GENERALLY SOUTH OF THE TUCSON METRO AREA AT THIS TIME.

DRB
Special weather statement, Jul 11, 1:57 PM MST, 2 hours 53 minutes before
AZZ009-010-112145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
157 PM MST TUE JUL 11 1995

...STRONG THUNDERSTORM SOUTHWEST OF THE TUCSON AREA...

AT 155 PM TUCSON DOPPLER RADAR SHOWED A STRONG THUNDERSTORM 10 TO 15
MILES SOUTHWEST OF DOWNTOWN TUCSON MOVING TO THE WEST..NORTHWEST AT
15 MPH.  THIS STORM WAS MOVING TOWARD THREE POINTS...WHICH IS NEAR THE
JUNCTION OF HIGHWAYS 86 AND 286.  IT SHOULD CROSS HIGHWAY 86 BETWEEN 215
AND 230 PM.

THIS STORM IS CAPABLE OF BRIEF BUT HEAVY RAIN AND STRONG GUSTY WINDS
TO 40 MPH CREATING BLOWING DUST.

OTHER STORMS WERE WIDELY SCATTERED OVER WESTERN PIMA AND SANTA CRUZ
COUNTIES...GENERALLY SOUTH OF THE TUCSON METRO AREA AT THIS TIME.

DRB
Special weather statement, Jul 11, 2:45 PM MST, 2 hours 5 minutes before
AZZ009-010-112230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
245 PM MST TUE JUL 11 1995

...STRONG THUNDERSTORM PRODUCING HEAVY RAIN SOUTHWEST OF TUCSON
OTHER STRONG STORMS LOCATED IN NORTHERN SANTA CRUZ AND WESTERN PIMA
COUNTIES...

AT 230 PM TUCSON DOPPLER RADAR SHOWED A STRONG THUNDERSTORM 10 TO 15
MILES SOUTHWEST OF DOWNTOWN TUCSON MOVING TO THE NORTHWEST AT 10 MPH.
THIS STORM WAS MOVING TOWARDS THREE POINTS...WHICH IS NEAR THE
JUNCTION OF HIGHWAYS 86 AND 286. NEARLY 1.0 INCH OF RAIN HAS BEEN
INDICATED BY WEATHER RADAR WITH THIS STORM SOUTHEAST OF THREE POINTS.
THE STORM SHOULD CROSS HIGHWAY 86 BETWEEN 245 AND 300 PM.

OTHER STRONG STORMS ARE LOCATED 5 MILES WEST OF ARIVACA...20 MILES
WEST OF AMADO AND 5 MILES EAST OF MADERA CANYON. MOVEMENT OF THESE
STORMS HAS BEEN TO THE NORTHWEST AT 10 MPH.

THESE STORMS ARE CAPABLE OF PRODUCING LOCAL HEAVY RAIN...STRONG GUSTY
WIND TO 40 MPH CREATING BLOWING DUST AND SMALL HAIL.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE NEWS SOURCES FOR
FURTHER UPDATES.

MCCOLLUM
Special weather statement, Jul 11, 2:47 PM MST, 2 hours 3 minutes before
AZZ009-010-112230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
245 PM MST TUE JUL 11 1995

...STRONG THUNDERSTORM PRODUCING HEAVY RAIN SOUTHWEST OF TUCSON
OTHER STRONG STORMS LOCATED IN NORTHERN SANTA CRUZ AND WESTERN PIMA
COUNTIES...

AT 230 PM TUCSON DOPPLER RADAR SHOWED A STRONG THUNDERSTORM 10 TO 15
MILES SOUTHWEST OF DOWNTOWN TUCSON MOVING TO THE NORTHWEST AT 10 MPH.
THIS STORM WAS MOVING TOWARDS THREE POINTS...WHICH IS NEAR THE
JUNCTION OF HIGHWAYS 86 AND 286. NEARLY 1.0 INCH OF RAIN HAS BEEN
INDICATED BY WEATHER RADAR WITH THIS STORM SOUTHEAST OF THREE POINTS.
THE STORM SHOULD CROSS HIGHWAY 86 BETWEEN 245 AND 300 PM.

OTHER STRONG STORMS ARE LOCATED 5 MILES WEST OF ARIVACA...20 MILES
WEST OF AMADO AND 5 MILES EAST OF MADERA CANYON. MOVEMENT OF THESE
STORMS HAS BEEN TO THE NORTHWEST AT 10 MPH.

THESE STORMS ARE CAPABLE OF PRODUCING LOCAL HEAVY RAIN...STRONG GUSTY
WIND TO 40 MPH CREATING BLOWING DUST AND SMALL HAIL.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE NEWS SOURCES FOR
FURTHER UPDATES.

MCCOLLUM
Special weather statement, Jul 11, 4:42 PM MST, 8 minutes before
AZZ009-120045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
445 PM MST TUE JUL 11 1995

...STRONG THUNDERSTORM AND HEAVY RAIN IN EASTERN PIMA COUNTY...

AT 440 PM TUCSON DOPPLER RADAR INDICATED A STRONG THUNDERSTORM
10 MILES SOUTH OF GREEN VALLEY NEAR I-19. HEAVY RAIN HAS BEEN
OCCURRING WITH THIS STORM WITH DOPPLER RADAR ESTIMATED RAINFALL TOTALS
OF 0.75 INCHES IN THE PAST 30 MINUTES. MOVEMENT OF THIS STORM IS TO THE
NORTHWEST AT 10 MPH.

PERSONS IN THE AREA OF THIS STORM SHOULD AVOID TRAVEL SINCE ROADS AND
WASHES MAY BE FLOODED. STRONG WIND...SMALL HAIL AND DEADLY LIGHTNING ARE
ALSO POSSIBLE WITH THIS STORM.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE NEWS SOURCE FOR
FURTHER UPDATES.

MCCOLLUMJ

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 11, 4:45 PM MST, 5 minutes before
AZZ009-120045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
445 PM MST TUE JUL 11 1995

...STRONG THUNDERSTORM AND HEAVY RAIN IN EASTERN PIMA COUNTY...

AT 440 PM TUCSON DOPPLER RADAR INDICATED A STRONG THUNDERSTORM
10 MILES SOUTH OF GREEN VALLEY NEAR I-19. HEAVY RAIN HAS BEEN
OCCURRING WITH THIS STORM WITH DOPPLER RADAR ESTIMATED RAINFALL TOTALS
OF 0.75 INCHES IN THE PAST 30 MINUTES. MOVEMENT OF THIS STORM IS TO THE
NORTHWEST AT 10 MPH.

PERSONS IN THE AREA OF THIS STORM SHOULD AVOID TRAVEL SINCE ROADS AND
WASHES MAY BE FLOODED. STRONG WIND...SMALL HAIL AND DEADLY LIGHTNING ARE
ALSO POSSIBLE WITH THIS STORM.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE NEWS SOURCE FOR
FURTHER UPDATES.

MCCOLLUMJ

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 2:57 PM MSTSevere Thunderstorm WarningTWCPima48 min
Jul 11, 3:48 PM MSTSevere Thunderstorm WarningTWCPima57 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.