Alert archive / Arizona / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 49, NWS Flagstaff, AZ

August 14, 1996Gila County, Arizona

NWS Flagstaff, AZ issued this severe thunderstorm warning at Aug 14, 1996, 3:15 PM MST for Gila County, Arizona. It was in force for 90 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 14, 1996, 3:15 PM MST (22:15 UTC)
Expired
Aug 14, 1996, 4:45 PM MST
In force
90 min
Issued by
NWS Flagstaff, AZ
Area
Whole counties

County Gila County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 10.3 hours before the alert went out and 181 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 1996-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1509 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 1996-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
1509 J/kg
Mixed-layer CIN
-133 J/kg
Mixed-layer LCL
1432 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
111 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 KFLG 142216
SVRFLG
AZC007-142345-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
315 PM MST WED AUG 14 1996

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 445 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN EAST CENTRAL ARIZONA

   ...NORTH CENTRAL GILA COUNTY
 
THE SEVERE THUNDERSTORM WARNING FOR NORTHERN GILA COUNTY HAS BEEN
EXTENDED UNTIL 445 PM THIS AFTERNOON.

THUNDERSTORMS CONTINUE DEVELOPING IN AN AREA BOUND BY PAYSON...
SOUTH ALONG STATE HIGHWAY 87 TO JAKES CORNER...AND EAST TO SENECA
LAKE.  THESES THUNDERSTORMS CONTINUE MOVING TO THE SOUTHWEST AT
ABOUT 10 MILES AN HOUR.

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY RAIN...
LARGE HAIL AND STRONG GUSTY WINDS WERE ASSOCIATED WITH STORMS IN
THIS WARNED AREA.

BE PREPARED TO SEEK THE APPROPRIATE SHELTER IF SEVERE WEATHER
APPROACHES YOUR AREA.

PEREZ

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 Flagstaff, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 14, 2:09 PM MST, 1 hour 6 minutes earlier.

Area forecast discussion, Aug 14, 2:09 PM MST, 1 hour 6 minutes before
NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
200 PM MST WED AUG 14 1996

TSTMS ARE STARTING TO POP GENERALLY FROM GCN SEWD TO THE WHITE
MTNS. GETTING REALLY BUSY WILL MAKE THIS SHORT.  INCREASED POPS ON
FIRST PERIOD WHERE TSTMS ARE AND IN THE DIRECTION OF THEIR
MOVEMENT.  STRONG WINDS...BRIEF HEAVY RAIN AND SMALL HAIL ARE
POSSIBLE. THESE TSTMS SHOULD PREVAIL UP AROUND MIDNIGHT IN THE
SOUTHERN PART OF THE CW4A.

HOT WEATHER AND AFTERNOON CONVECTION WILL CONTINUE BUT GENERALLY
LIMITED UP TO SCT. OVERNIGHT LOWS WILL STAY A LITTLE WARMER WITH
THE ADDED MOISTURE.

FLG 22-2 INW --0-

HP

In the hours before

Special weather statement, Aug 14, 1:28 PM MST, 1 hour 47 minutes before
AZZ013-142130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
128 PM MST WED AUG 14 1996

...GROWING THUNDERSTORM IN NORTHERN GILA COUNTY THIS AFTERNOON...

AT 125 PM MST...FLAGSTAFF DOPPLER WEATHER RADAR INDICATED A
GROWING THUNDERSTORM ABOUT 2 MILES SOUTHEAST OF YOUNG.  THIS
THUNDERSTORM IS MOVING SLOWLY TO THE SOUTHWEST...AT ABOUT 10 MILES
AN HOUR.

THIS STORM WILL BE PASSING OVER STATE HIGHWAY 288 IN THE SIERRA
ANCHAS MOUNTAINS DURING THE NEXT HOUR.  RADAR ESTIMATED RAINFALL
WITH THIS STORM HAS REACHED ALMOST ONE INCH DURING THE PAST HOUR.

STRONG GUSTY WINDS...FREQUENT LIGHTNING...VERY HEAVY RAINFALL AND
SMALL HAIL MAY ACCOMPANY THESE STORMS.

PEREZ
Special weather statement, Aug 14, 2:17 PM MST, 58 minutes before
AZZ006-007-142320-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
217 PM MST WED AUG 14 1996

...LINE OF DEVELOPING THUNDERSTORMS FROM NORTHWEST COCONINO COUNTY
TO THE VERDE VALLEY...

AT 210 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A LINE OF THUNDERSTORMS ENTERING YAVAPAI COUNTY.  THIS LINE OF
STORMS EXTENDED FROM HIGHWAY 18...IN THE HUALAPAI INDIAN
RESERVATION...THROUGH NORTHERN CHINO VALLEY...AND EXTENDED
SOUTHEAST TO THE VERDE VALLEY.

THESE THUNDERSTORMS WERE MOVING TO THE SOUTHWEST AT 15 MILES AN
HOUR.  THE STRONGEST STORMS WERE LOCATED BETWEEN ASH FORK AND
CLARKDALE.  THIS LINE SHOULD APPROACH PAULDEN BY 315 PM THIS
AFTERNOON.

IF YOU ARE IN THJIS AREA...BE PREPARED FOR LOCALLY HEAVY RAIN...
STRONG GUSTY WINDS AND FREQUENT LIGHTNING.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR UPDATES ON
THESE THUNDERSTORMS.

PEREZ

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 1:55 PM MSTSevere Thunderstorm WarningFGZGila75 min
Aug 14, 4:21 PM MSTSevere Thunderstorm WarningFGZYavapai89 min

Nearby

Severe Thunderstorm Warnings in Arizona, 1996Every severe thunderstorm warning in 1996

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.