Alert archive / Arizona / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 76, NWS Phoenix, AZ

September 9, 1995Maricopa County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Sep 9, 1995, 6:25 PM MST for Maricopa County, Arizona. It was in force for 50 min.

The area

The counties it named.

The facts

Issued
Sep 9, 1995, 6:25 PM MST (01:25 UTC)
Expired
Sep 9, 1995, 7:15 PM MST
In force
50 min
Issued by
NWS Phoenix, AZ
Area
Whole counties

County Maricopa County, AZ

The radar

The Phoenix radar (KIWA), 77 km from the middle of the area, began a volume at 01:28 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 1.4 hours before the alert went out and 198 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 1995-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 373 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 1995-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
373 J/kg
Mixed-layer CIN
-133 J/kg
Mixed-layer LCL
2124 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
53 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 KPHX 100130 RRA
SVRPHX
AZC013-100230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHOENIX AZ
625 PM MST SAT SEP 9 1995

THE NATIONAL WEATHER SERVICE IN PHOENIX AZ HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 730 PM MST FOR PEOPLE IN THE
FOLLOWING LOCATIONS...

IN SOUTH-CENTRAL ARIZONA

  ...SOUTHWESTERN MARICOPA COUNTY...GILA BEND AND VICINITY

VERY STRONG POSSIBLY SEVERE THUNDERSTORMS WERE APPROACHING GILA BEND
FROM THE SOUTHWEST.  STORM MOVEMENT WAS NORTHEAST AT 25 MPH.

THESE ARE DANGEROUS THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS
IN EXCESS OF 57 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY
HEAVY RAIN.

SEEK SHELTER IN A STRONG BUILDING AND STAY AWAY FROM WINDOWS TO AVOID
FLYING DEBRIS.  HIGH PROFILE VEHICLES ON INTERSTATE 8 NEAR GILA BEND
ARE VULNERABLE TO DANGEROUS CROSS WINDS.

VASQUEZ

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 9, 1:25 PM MST, 5 hours before
AZZ008-092200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
125 PM MST SAT SEP 09 1995

...STRONG THUNDERSTORMS DEVELOPING IN WESTERN PINAL COUNTY...

AT 115 PM MST...PHOENIX DOPPLER RADAR INDICATED STRONG THUNDERSTORMS
WITH SMALL HAIL AND ESTIMATED RAINFALL IN EXCESS OF 1 INCH IN WESTERN
PINAL COUNTY. THE AREAS OF STRONGEST THUNDERSTORMS WERE LOCATED NEAR
INTERSTATE 8 SOUTH OF THE TOWN OF STANFIELD...AND WERE MOVING TOWARDS
THE NORTHEAST BETWEEN 10 AND 20 MPH.

MOTORISTS ALONG INTERSTATE 8 FROM THE MARICOPA-PINAL COUNTY BORDER
EASTWARD TO NEAR INTERSTATE 10...ALONG STATE ROUTE 84 FROM STANFIELD
TO NEAR CASA GRANDE...AND ALONG STATE ROUTE 347 FROM NEAR STANFIELD
TO THE GILA RIVER INDIAN RESERVATION...SHOULD BE ON THE ALERT FOR
HEAVY RAIN...WATER ON ROADWAYS...SMALL HAIL...GUSTY WINDS AND
POSSIBLE BLOWING DUST UNTIL 3 PM MST THIS AFTERNOON.

BERKOVITZ
Special weather statement, Sep 9, 4:28 PM MST, 1 hour 57 minutes before
AZZ008-009-100015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
428 PM MST SAT SEP 09 1995

...STRONG THUNDERSTORMS WITH HEAVY RAIN DEVELOPING RAPIDLY OVER THE
EASTERN PORTIONS OF PINAL COUNTY FROM ORACLE JUNCTION TO MAMMOTH AND
HAYDEN...

THE STRONGEST STORMS AT 425 PM WERE LOCATED IN EASTERN PINAL COUNTY
FROM ORACLE JUNCTION ALONG STATE ROUTE 77 TO WINKELMAN AND HAYDEN.

THESE STORMS WERE VERY STRONG AND CAPABLE OF PRODUCING WIND GUSTS TO
50 MPH...HEAVY RAIN...AND HAIL.

RESIDENTS AND MOTORISTS SHOULD KEEP A WATCHFUL EYE ON THE WEATHER AND
BE PREPARED TO TAKE SHELTER IF THREATENING WEATHER APPROACHES.

VASQUEZ
Special weather statement, Sep 9, 4:35 PM MST, 1 hour 50 minutes before
AZZ008-009-100015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
428 PM MST SAT SEP 09 1995

...STRONG THUNDERSTORMS WITH HEAVY RAIN DEVELOPING RAPIDLY OVER THE
EASTERN PORTIONS OF PINAL COUNTY FROM ORACLE JUNCTION TO MAMMOTH AND
HAYDEN...

THE STRONGEST STORMS AT 425 PM WERE LOCATED IN EASTERN PINAL COUNTY
FROM ORACLE JUNCTION ALONG STATE ROUTE 77 TO WINKELMAN AND HAYDEN.

THESE STORMS WERE VERY STRONG AND CAPABLE OF PRODUCING WIND GUSTS TO
50 MPH...HEAVY RAIN...AND HAIL.

RESIDENTS AND MOTORISTS SHOULD KEEP A WATCHFUL EYE ON THE WEATHER AND
BE PREPARED TO TAKE SHELTER IF THREATENING WEATHER APPROACHES.

VASQUEZ

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 9, 5:29 PM MSTSevere Thunderstorm WarningPSRMaricopa41 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; radar from the NEXRAD Level II archive.