Alert archive / Arizona / Tornado Warnings in 1996

Tornado Warning 4, NWS Flagstaff, AZ

August 29, 1996Gila County, Arizona

NWS Flagstaff, AZ issued this tornado warning at Aug 29, 1996, 7:50 PM MST for Gila County, Arizona. It was in force for 30 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 29, 1996, 7:50 PM MST (02:50 UTC)
Expired
Aug 29, 1996, 8:20 PM MST
In force
30 min
Issued by
NWS Flagstaff, AZ
Area
Whole counties

County Gila County, AZ

The radar

The Flagstaff radar (KFSX), 93 km from the middle of the area, began a volume at 02:53 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, 2.8 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 00:00Z on 1996-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 868 joules per kilogram.LCLEL10008507005003002001001 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 1996-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
868 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
2548 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
47 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 300251
TORFLG
AZC007-300320-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
750 PM MST THU AUG 29 1996

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 820 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN EAST CENTRAL ARIZONA

   ...NORTH CENTRAL GILA COUNTY
 
AT 750 PM MST FLAGSTAFF DOPPLER RADAR INDICATED A TORNADO 10 MILES
EAST OF PAYSON MOVING NORTHWEST AT 15 MPH.
 
IF YOU ARE IN THE PATH OF A TORNADO, THE SAFEST PLACE IN A HOME
OR BUSINESS IS AN INTERIOR ROOM ON THE LOWEST FLOOR AND AWAY FROM
WINDOWS.

MEC

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Aug 29, 2:02 PM MST, 5 hours 48 minutes earlier.

Area forecast discussion, Aug 29, 2:02 PM MST, 5 hours 48 minutes before
NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
200 PM MST THU AUG 29 1996

5H RIDGE AXIS TO SWING OVER CWA NEXT FEW DAYS.  SOME DRYING MID TO
UPPER LEVELS TO OCCUR...MAINLY OVER THE NORTHERN PORTIONS.  DECENT
DP VALUES SHOWING UP IN LITTLE CO VALLEY AS WELL AS OVER YAVAPAI
CNTY AT THIS TIME.  EXPECT DECENT ACT TO DEVELOP LATER ON THIS AFT
IN THIS AFT AND EVENING WITH STORMS PROPAGATING SOUTHWARD INTO THE
VALLEYS...WHERE GREATEST MOISTURE LIES. KEEPING POPS UP THIS
EVENING ZNS 7 13.  IN EXTENDED SLOWLY DRYING THINGS OFF N TO S AS
DRYER AIR WORKS IN. FOR TEMPS MAKING SOME MINOR ADJUSTMENTS TO NGM
MOS.

MCGRATH

In the hours before

Special weather statement, Aug 29, 2:12 PM MST, 5 hours 38 minutes before
AZZ007-292315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
210 PM MST THU AUG 29 1996

...STRONG THUNDERSTORMS IN CENTRAL YAVAPAI COUNTY...

AT 210 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS OVER CENTRAL YAVAPAI COUNTY. THE STRONGEST
STORM WAS OVER PRESCOTT VALLEY MOVING SOUTHWEST AT 10 MILES AN
HOUR AND WILL AFFECT PRESCOTT VALLEY THROUGH 230 PM AND PRESCOTT
BY 245 PM. A SKYWARN WEATHER SPOTTER IN PRESCOTT VALLEY REPORTED
1/2 INCH HAIL WITH THIS STORM AT 210 PM.

IF YOU ARE OUTDOORS AND A STORM APPROACHES...MOVE TO A PLACE OF
SHELTER IMMEDIATELY.  MOTORISTS SHOULD REMAIN ALERT FOR STREET
FLOODING AND REDUCED VISIBILITIES IN HEAVY RAIN.

SIGLER
Special weather statement, Aug 29, 4:10 PM MST, 3 hours 40 minutes before
AZZ012-300010-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
407 PM MST THU AUG 29 1996

...STRONG THUNDERSTORM PRODUCING 1/4 TO 1/2 INCH SIZE HAIL IN
SOUTH CENTRAL COCONINO COUNTY...

AT 405 PM...A THUNDERSTORM WAS IN PROGRESS AT THE FLAGSTAFF
NATIONAL WEATHER SERVICE IN BELLEMONT...10 MILES WEST OF
FLAGSTAFF ALONG I-40 AND WAS PRODUCING HEAVY RAIN AND 1/4 TO 1/2
INCH SIZE HAIL.

DRIVERS WEST OF FLAGSTAFF ON I-40 SHOULD BE PREPARED FOR REDUCED
VISIBILITY IN HEAVY RAIN AND HAIL.

SIGLER
Special weather statement, Aug 29, 5:12 PM MST, 2 hours 38 minutes before
AZZ014-300215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
510 PM MST THU AUG 29 1996

...THUNDERSTORMS OVER THE WHITE MOUNTAINS PRODUCING HEAVY RAIN
AND FREQUENT LIGHTNING...

AT 510 PM MST...FLAGSTAFF NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED NUMEROUS SHOWERS AND THUNDERSTORMS IN THE WHITE
MOUNTAINS WITH THE STRONGEST STORM BETWEEN HAWLEY AND LEE VALLEY
LAKES WITH ANOTHER STRONG THUNDERSTORM NEAR ALPINE. A WEATHER
SPOTTER IN ALPINE REPORTED .38 INCHES OF RAIN IN A HALF HOUR.

IF YOU ARE OUTDOORS AND A STORM APPROACHES...MOVE TO A PLACE OF
SHELTER IMMEDIATELY.  MOTORISTS SHOULD REMAIN ALERT FOR STREET
FLOODING AND REDUCED VISIBILITIES IN HEAVY RAIN.

SIGLER
Special weather statement, Aug 29, 6:36 PM MST, 1 hour 14 minutes before
AZZ007-300215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
635 PM MST THU AUG 29 1996

...THUNDERSTORMS WITH VERY HEAVY RAIN SHOWERS AND HAIL MOVING INTO
NORTHERN YAVAPAI COUNTY...

AT 630 PM MST FLAGSTAFF DOPPLER RADAR INDICATED THUNDERSTORMS
WITH HEAVY RAIN SHOWERS AND HAIL BETWEEN JEROME, SEDONA, AND
COTTONWOOD.  THESE STORMS WERE MOVING SOUTH AT ABOUT 20 MPH AND
WILL AFFECT CAMP VERDE AND MCGUIREVILLE AND HIGHWAYS 89A AND 260
BY 730 PM.

IF YOU ARE OUTDOORS AND A STORM APPROACHES, MOVE TO A PLACE OF
SHELTER IMMEDIATELY.  MOTORISTS SHOULD REMAIN ALERT FOR STREET
FLOODING AND REDUCED VISIBILITIES IN HEAVY RAIN.

LISTEN TO NOAA WEATHER RADIO OR COMMERCIAL NEWS SOURCES FOR THE
LATEST WEATHER INFORMATION.

MEC

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 5:22 PM MSTSevere Thunderstorm WarningFGZCoconino58 min
Aug 29, 5:35 PM MSTSevere Thunderstorm WarningFGZGila40 min
Aug 29, 6:17 PM MSTSevere Thunderstorm WarningFGZGila, Navajo43 min
Aug 29, 6:47 PM MSTSevere Thunderstorm WarningFGZYavapai48 min
Aug 29, 7:05 PM MSTSevere Thunderstorm WarningFGZGila45 min
Aug 29, 9:06 PM MSTSevere Thunderstorm WarningFGZYavapai44 min
Aug 30, 2:50 PM MSTSevere Thunderstorm WarningFGZYavapai40 min
Aug 30, 3:50 PM MSTSevere Thunderstorm WarningFGZYavapai30 min
Aug 30, 4:06 PM MSTSevere Thunderstorm WarningFGZYavapai44 min

Nearby

Tornado Warnings in Arizona, 1996Every tornado warning in 1996Tornadoes 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; radar from the NEXRAD Level II archive.