Alert archive / Arizona / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 2, NWS Phoenix, AZ

March 12, 1986Maricopa County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Mar 12, 1986, 6:10 PM MST for Maricopa County, Arizona. It was in force for 50 min.

The area

The counties it named.

The facts

Issued
Mar 12, 1986, 6:10 PM MST (01:10 UTC)
Expired
Mar 12, 1986, 7:00 PM MST
In force
50 min
Issued by
NWS Phoenix, AZ
Area
Whole counties

County Maricopa County, AZ

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 1.2 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 1986-03-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 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 1986-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2675 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Mar 12, 4:36 PM MST, 1 hour 34 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
430 PM MST WED MAR 12 1986

...SHOWERS AND THUNDERSTORMS ARE NORTH OF PHOENIX MOVING TOWARD THE
CITY...

A GROUP OF SHOWERS AND THUNDERSTORMS FORMED OVER THE MOUNTAINS NORTH
OF PHOENIX THIS AFTERNOON. IT WAS GROWING LARGER AND SPREADING TO THE
SOUTH AND EAST LATE THIS AFTERNOON.. WITH THE EDGE OF THE STORM HVING
REACHED THE NORTHERN EDGE OF THE CITY AT 4 PM.

RAIN WAS REPORTED AT GLENDALE AT 4 PM AND AT 430 PM.. AN OBSERVER
ON THE NORTH SIDE OF SCOTTSDALE REPORTED HEAVY SHOWERS. RADAR SHOWED
A FEW SMALL AREAS OF HEAVY RAIN.. ALONG WITH A MUCH LARGER AREA OF
LIGHT TO MODERATE RAIN. THE RAIN STRETCHED FROM GLOBE AND GILA COUNTY
.. TO PRESCOTT AND YAVAPAI COUNTY AND WESTWARD INTO MOHAVE COUNTY
.. AS WELL AS INTO PARTS OF MARICOPA COUNTY AND PHOENIX.

PEOPLE IN CENTRAL ARIZONA CAN EXPECT SEVERAL HOURS OF SHOWERY.. WINDY
.. CHILLY WEATHER THIS EVENING.. WITH A GOOD CHANCE FOR THUNDERSTORMS.
SOME OF THE RAIN MAY BE HEAVY ENOUGH TO CAUSE MINOR STREET FLOODING
IN THE GREATER PHOENIX AREA.. AS WELL AS WATER IN HIGHWAY DIPS AND
LOW SPOTS IN RURAL AREAS. MOTORISTS SHOULD ALLOW EXTRA TIME FOR
TRAVEL.

THE SNOW LEVEL SHOULD BE NEAR 5000 FEET. NOT MUCH ACCUMULATION WILL
OCCUR IN MOST AREAS.. BUT THERE COULD BE SOME ISOLATED HEAVY SNOW
SHOWERS THAT PRODUCE 2 OR 3 INCHES IN A SHORT TIME. MOTORISTS HEADED
INTO NORTHERN ARIZONA SHOULD USE EXTRA CAUTION.

TENHARKEL

Nearby

Severe Thunderstorm Warnings in Arizona, 1986Every severe thunderstorm warning in 1986

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.