Alert archive / Arizona / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 29, NWS Tucson, AZ

August 18, 1995Cochise County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Aug 18, 1995, 2:36 PM MST for Cochise County, Arizona. It was in force for 54 min.

The area

The counties it named.

The facts

Issued
Aug 18, 1995, 2:36 PM MST (21:36 UTC)
Expired
Aug 18, 1995, 3:30 PM MST
In force
54 min
Issued by
NWS Tucson, AZ
Area
Whole counties

County Cochise County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 9.6 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 12:00Z on 1995-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 793 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 1995-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
793 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
1339 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
43 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 182137 RRA
SVRTUS
AZC003-182230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON ARIZONA
236 PM MST FRI AUG 18 1995
 
THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  330 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST ARIZONA
 
   ...WEST CENTRAL COCHISE COUNTY
 
AT 230 PM THE BENSON POLICE DEPARTMENT REPORTED A SEVERE THUNDERSTORM
IN BENSON. A TREE WAS BLOWN OVER AND 1/2 INCH HAIL WAS FALLING.
 
MOVEMENT OF THE STORM WAS TOWARDS THE SOUTHWEST AT 15 MPH. THIS
STORM WILL MOVE ACROSS STATE HIGHWAY 90 ABOUT 10 MILES SOUTH OF
I-10 AROUND 3 PM.
 
THIS IS A DANGEROUS STORM. PERSONS IN THE PATH OF THIS STORM
SHOULD SEEK SHELTER.
 
COLLINS

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 18, 1:21 PM MST, 1 hour 15 minutes earlier.

Area forecast discussion, Aug 18, 1:21 PM MST, 1 hour 15 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
130 PM MST FRI AUG 18 1995

88D SHOWING SCT TSTM ACTIVITY ACRS SE AZ ATTM. RADAR AND SPOTTER
REPORTS INDICATE THESE STORMS ARE PRODUCING HEAVY RAINFALL.
SATELLITE SHOWS BIG TSTM COMPLEX VCNTY DUG MOVG TOWRADS THE NW
WHICH KEEP THINGS RUMBLING ACRS SE AZ INTO THE EVENING HOURS.
AS MENTIONED IN THIS MORNINGS AFD MDS BRING EVEN MORE MOISTURE INTO
SE AZ NEXT 2 DAYS FOR CONTINUED TZSTM ACTIVITY. THIS PATTERN LOOKS
LIKE IT WILL CONTINUE FOR MOST OF NEXT WEEK.
TUS 5555.  COLLINS

.TWC...NONE.

In the hours before

Special weather statement, Aug 18, 10:38 AM MST, 3 hours 58 minutes before
AZZ009-010-007-181845-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
1038 AM MST FRI AUG 18 1995

...SCATTERED THUNDERSTORMS ACROSS SOUTHEAST ARIZONA...

AT 1035 AM TUCSON DOPPLER RADAR INDICATED SCATTERED THUNDERSTORMS
ACROSS SOUTHEAST ARIZONA. THE STRONGEST STORMS ARE ABOUT 10 MILES
EAST OF TOMBSTONE...JUST SOUTH OF BISBEE AND ABOUT 10 MILES SOUTHWEST
OF GREEN VALLEY.  THE MOVEMENT OF THESE THUNDERSTORMS IS TOWARDS THE
SOUTHWEST AT 5 TO 10 MILES PER HOUR.

THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY RAIN AND STRONG
GUSTY WINDS.  PERSONS SHOULD BE ON THE LOOKOUT FOR CHANGING WEATHER
CONDITIONS AND SEEK SHELTER IF THREATENING WEATHER APPROACHES YOUR
AREA.  MOTORISTS SHOULD AVOID DRIVING INTO FLOODED ROADWAYS AND
WASHES.

COLLINS/SALTER
Special weather statement, Aug 18, 11:45 AM MST, 2 hours 51 minutes before
AZZ009-010-007-181945-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
1145 AM MST FRI AUG 18 1995

...STRONG THUNDERSTORMS CONTINUE ACROSS SOUTHEAST ARIZONA...

AT 1145 AM TUCSON DOPPLER RADAR INDICATED STRONG THUNDERSTORMS
ACROSS SOUTHEAST ARIZONA.  THE STRONGEST STORMS ARE LOCATED NEAR
THE DOUGLAS AREA...10 MILES EAST OF TOMBSTONE...OVER THE CATALINA
MOUNTAINS AND ABOUT 15 MILES SOUTHWEST OF GREEN VALLEY.  THE
MOVEMENT OF THESE STORMS IS TO THE SOUTHWEST AT 5 TO 10 MPH.

THESE THUNDERSTORMS ARE CAPABLE OF HEAVY RAIN...STRONG GUSTY WINDS
AND DANGEROUS LIGHTNING.

COLLINS/SALTER
Special weather statement, Aug 18, 1:33 PM MST, 1 hour 3 minutes before
AZZ009-010-182133-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
133 PM MST FRI AUG 18 1995

...THUNDERSTORMS APPROACHING SIERRA VISTA AND FORT HUACHUCA...

AT 130 PM...TUCSON DOPPLER RADAR SHOWED THUNDERSTORMS 5 MILES
NORTHEAST OF FT HUACHUCA AND SIERRA VISTA IN SOUTHWEST COCHISE
COUNTY.  THESE STORMS ARE MOVING TO THE SOUTH-SOUTHWEST AT 10 MPH.
THESE STORMS HAVE ALREADY PRODUCED HEAVY RAIN OVER THE TOMBSTONE
AND SHOULD DO THE SAME OVER FT HUACHUCA AND SIERRA VISTA.  ALSO BE
PREPARED FOR LIGHTNING AND GUSTY WINDS ASSOCIATED WITH THESE STORMS.

RADAR ALSO INDICATED THUNDERSTORMS REDEVELOPING OVER THE DRAGOON
MOUNTAINS NORTHEAST OF TOMBSTONE.  MOVEMENT WAS TO THE SOUTHWEST AT 5
TO 10 MPH.  THE TOMBSTONE AREA AND MOTORISTS ON HIGHWAY 80 SHOULD BE
AFFECTED BEFORE 3 PM.

BRYANT
Special weather statement, Aug 18, 1:34 PM MST, 1 hour 2 minutes before
AZZ009-010-182133-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
133 PM MST FRI AUG 18 1995

...THUNDERSTORMS APPROACHING SIERRA VISTA AND FORT HUACHUCA...

AT 130 PM...TUCSON DOPPLER RADAR SHOWED THUNDERSTORMS 5 MILES
NORTHEAST OF FT HUACHUCA AND SIERRA VISTA IN SOUTHWEST COCHISE
COUNTY.  THESE STORMS ARE MOVING TO THE SOUTH-SOUTHWEST AT 10 MPH.
THESE STORMS HAVE ALREADY PRODUCED HEAVY RAIN OVER THE TOMBSTONE
AND SHOULD DO THE SAME OVER FT HUACHUCA AND SIERRA VISTA.  ALSO BE
PREPARED FOR LIGHTNING AND GUSTY WINDS ASSOCIATED WITH THESE STORMS.

RADAR ALSO INDICATED THUNDERSTORMS REDEVELOPING OVER THE DRAGOON
MOUNTAINS NORTHEAST OF TOMBSTONE.  MOVEMlENT WAS TO THE SOUTHWEST AT 5
TO 10 MPH.  THE TOMBSTONE AREA AND MOTORISTS ON HIGHWAY 80 SHOULD BE
AFFECTED BEFORE 3 PM.

BRYANT
Special weather statement, Aug 18, 2:27 PM MST, 9 minutes before
AZZ009-010-182227-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
227 PM MST FRI AUG 18 1995

...STRONG THUNDERSTORMS OVER BENSON AND ALONG I-10 IN WESTERN COCHISE
COUNTY...

AT 225 PM...TUCSON DOPPLER RADAR INDICATED SEVERAL THUNDERSTORMS IN
WESTERN COCHISE COUNTY WITH THE STRONGEST STORMS OVER BENSON AND
ALONG INTERSTATE 10 BETWEEN BENSON AND DOUGLAS.  THERE WERE ALSO
STORMS 20 MILES WEST OF WILLCOX...5 MILES WEST OF HUACHUCA CITY...AND
OVER THE HUACHUCA MOUNTAINS NEAR SIERRA VISTA.  STORM MOVEMENT WAS TO
THE SOUTH-SOUTHWEST AT ABOUT 10 MPH.

MOTORISTS ON INTERSTATE 10 AND RESIDENTS IN WESTERN COCHISE COUNTY
SHOULD BE PREPARED FOR HEAVY RAIN...FREQUENT LIGHTNING...AND GUSTY
WINDS.  THIS STORM ACTIVITY IS EXPECTED TO MOVE INTO EASTERN PIMA AND
EASTERN SANTA CRUZ COUNTIES IN THE NEXT HOUR.

BRYANT
Special weather statement, Aug 18, 2:29 PM MST, 7 minutes before
AZZ009-010-182227-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
227 PM MST FRI AUG 18 1995

...STRONG THUNDERSTORMS OVER BENSON AND ALONG I-10 IN WESTERN COCHISE
COUNTY...

AT 225 PM...TUCSON DOPPLER RADAR INDICATED SEVERAL THUNDERSTORMS IN
WESTERN COCHISE COUNTY WITH THE STRONGEST STORMS OVER BENSON AND
ALONG INTERSTATE 10 BETWEEN BENSON AND DOUGLAS.  THERE WERE ALSO
STORMS 20 MILES WEST OF WILLCOX...5 MILES WEST OF HUACHUCA CITY...AND
OVER THE HUACHUCA MOUNTAINS NEAR SIERRA VISTA.  STORM MOVEMENT WAS TO
THE SOUTH-SOUTHWEST AT ABOUT 10 MPH.

MOTORISTS ON INTERSTATE 10 AND RESIDENTS IN WESTERN COCHISE COUNTY
SHOULD BE PREPARED FOR HEAVY RAIN...FREQUENT LIGHTNING...AND GUSTY
WINDS.  THIS STORM ACTIVITY IS EXPECTED TO MOVE INTO EASTERN PIMA AND
EASTERN SANTA CRUZ COUNTIES IN THE NEXT HOUR.

BRYANT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 3:36 PM MSTSevere Thunderstorm WarningTWCCochise, Pima, Santa Cruz69 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.