Alert archive / Arizona / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 49, NWS Las Vegas, NV

August 29, 1996Mohave County, Arizona

NWS Las Vegas, NV issued this severe thunderstorm warning at Aug 29, 1996, 4:09 PM MST for Mohave County, Arizona. It was in force for 66 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, 4:09 PM MST (23:09 UTC)
Expired
Aug 29, 1996, 5:15 PM MST
In force
66 min
Issued by
NWS Las Vegas, NV
Area
Whole counties

County Mohave County, AZ

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 11.2 hours before the alert went out and 185 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, Flgstf/Belemont, AZ at 12:00Z on 1996-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 609 joules per kilogram.LCLLFCEL10008507005003002001001 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, Flgstf/Belemont, AZ at 12:00Z on 1996-08-29The 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
609 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
1655 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
-3 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 KLAS 292311
SVRLAS
AZC015-300015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
409 PM PDT (409 PM MST) THU AUG 29 1996
 
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  515 PM PDT (515 PM MST)
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN NORTHWEST ARIZONA
 
   ...SOUTH CENTRAL MOHAVE COUNTY
 
AT 400 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM ABOUT 5 MILES SOUTH OF KINGMAN ALONG
INTERSTATE 40.  THE STORM WAS MOVING SOUTH ALONG INTERSTATE 40
AT 10 MPH.  THIS WARNING DOES NOT INCLUDE THE CITY OF KINGMAN BUT
DOES INCLUDE THE TOWN OF YUCCA ABOUT 20 MILES TO THE SOUTH.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
SKRBAC

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 Las Vegas, NV wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 29, 2:18 PM MST, 1 hour 51 minutes earlier.

Area forecast discussion, Aug 29, 2:18 PM MST, 1 hour 51 minutes before
MOJAVE DESERT/SOUTHERN GREAT BASIN AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
215 PM PDT THU AUG 29 1996

TSTMS FORMING OVR YAVAPAI COUNTY AND WL MOV INTO MOHAVE COUNTY
LATER THIS AFTN AND EVENING.  EARLIER OUTFLOW FM SW AZ COMPLEX
JUICED UP THE AIR OVR SRN MOHAVE.  NEW 94O HAS SLGT RISK OVR
SRN MOHAVE JUST S OF IGM.  EVE CREW WL HAVE TO WATCH THIS AREA
CAPES APPEAR TO BE BTN 1000 AND 2000J/KG WITH SMALL CAP
(<100J/KG).  LARGER CAPES EXIST OVR SW AZ IN 70+ DEW PTS.
AMS MUCH MORE STABLE OVR SRN NV AND SERN CA.

MN CONCERN FOR TMW IS PATH OF LOW LVL MSTR.  MAJOR DIFFERENCES
BTN ETA AND NGM/AVN.  THE ETA KEEPS...EVEN INCREASES THE LOW LVL
MSTR OVRNGT WHILE THE NGM/AVN DRY IT OUT.  I LEAN TWD THE ETA
SOLUTION BASED ON WHAT HAPPENED LAST NIGHT AND CURRENT CONVECTION
MOVG WWD ACRS YAVAPAI COUNTY AND THEIR IMPLICATION ON FUTURE
OUTFLOWS AND POTENTIAL TO PUSH THE MSTR EVEN FARTHER NWD AND WWD.
BASED ON THIS WL INTRODUCE ISOLD TSTMS IN SRN ZONE 9 TMW...SOUTH
OF LAS.  TUF FCST BUT EVENING SHIFT CAN REEVALUATE DEVELOPING
SITUATION IN NW AZ.  WL KEEP WDLY SCT IN AZ ZONE 3 TMW AND GO
TO ISOLD ON SAT.

OTRW...TROF MOVG TWD PACNW SHD SLOWLY LOWER THE HGHTS NXT 48-72
HRS AND BRING SOME BREEZY CONDS BY SATURDAY.  WL INTRODUCE SOME
S WNDS 10 TO 20 MPH EVEN TMW FOR GRAD WNDS IN ZONE 8 AND SLY SURGE
POTENTIAL IN ZONE 9 ALONG THE RIVER.  IN THE EXTENDED PD...TEMPS
TO RETURN TO NR NORMAL WITH LOCAL BREEZES.  WL KEEP EVERYBODY DRY
...EVEN NW AZ.  LAS 0000.  SKRBAC

In the hours before

Special weather statement, Aug 29, 3:05 PM MST, 1 hour 4 minutes before
AZZ003-292305-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
305 PM PDT (305 PM MST) THU AUG 29 1996

...STRONG THUNDERSTORM OVER SOUTHEAST MOHAVE COUNTY...

AT 255 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A STRONG THUNDERSTORM ABOUT 15 MILES NORTHEAST OF WIKIEUP OVER
THE AQUARIUS MOUNTAINS.  THE STORM HAD JUST FORMED BUT MOVEMENT
APPEARED TO BE SOUTHWEST AT 5 TO 10 MPH.

PERSONS IN EXTREME SOUTHEAST MOHAVE COUNTY SHOULD BE ALERT FOR
THIS STORM.  THE STORM IS LIKELY PRODUCING VERY HEAVY RAIN...HAIL
...STRONG WIND GUSTS AND DANGEROUS LIGHTNING.  VISIBILITIES MAY
ALSO BE REDUCED IN BLOWING DUST AND SAND.  ANOTHER STORM WAS
DEVELOPING OVER THE HUALAPAI MOUN@TAINS ABOUT 20 MILES SOUTHEAST
OF KINGMAN.  OTHER THUNDERSTORMS ARE EXPECTED ACROSS SOUTHERN
MOHAVE COUNTY THROUGH THIS EVENING.

SKRBAC
Special weather statement, Aug 29, 3:35 PM MST, 34 minutes before
AZZ003-292340-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
335 PM PDT (335 PM MST) THU AUG 29 1996

...STRONG THUNDERSTORM JUST WEST OF KINGMAN...

AT 330 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
A STRONG THUNDERSTORM ABOUT 10 MILES WEST OF KINGMAN.  THE STORM
WAS MOVING SOUTHWARD AROUND 10 MPH.  THE STORM WILL CROSS INTERSTATE
40 SOUTH OF KINGMAN AND NEAR YUCCA AROUND 400 PM MST.  TRAVELLERS
ON OR NEAR INTERSTATE 40 SHOULD BE PREPARED FOR BRIEF HEAVY RAIN...
STRONG WIND GUSTS...SMALL HAIL AND DANGEROUS LIGHTNING.  AVOID
HYDROPLANING BY SLOWING YOUR SPEED DURING PERIODS OF HEAVIER RAIN.

OTHER THUNDERSTORMS ARE EXPECTED AROUND THE REGION THROUGH THIS
EVENING.  LISTEN TO THIS STATION FOR FURTHER STATEMENTS FROM THE
NATIONAL WEATHER SERVICE.

SKRBAC

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.