Alert archive / Arizona / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 69, NWS Las Vegas, NV
NWS Las Vegas, NV issued this severe thunderstorm warning at Sep 8, 1996, 4:14 PM MST for Mohave County, Arizona. It was in force for 61 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
- Sep 8, 1996, 4:14 PM MST (23:14 UTC)
- Expired
- Sep 8, 1996, 5:15 PM MST
- In force
- 61 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.
- Mixed-layer CAPE
- 4 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 1712 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
NWS Las Vegas, NV wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 8, 2:50 PM MST, 1 hour 24 minutes earlier.
Area forecast discussion, Sep 8, 2:50 PM MST, 1 hour 24 minutes before
MOJAVE DESERT/SOUTHERN GREAT BASIN AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 245 PM PDT SUN SEP 8 1996 LIKE YDA AFTN WDLY SCT TRWS FIRING GENERALLY S AND E OF A LINE FROM DAG TO P38. KESX RADAR SHOWED MOST OF THE ACTIVITY CONFINED TO HIR ELEVATIONS. ON THE WATER VAPOR LOOP THIS AFTN...UNABLE TO LOCATE VORT MAX THAT WAS PROGGED TO DVLP ACRS SRN CALIFORNIA/WRN ARIZONA. THEREFORE WITH A LACK OF A SYNOPTIC SCALE LIFTING MECHANISM... ACTIVITY SHOULD DECREASE AFTER SUNSET. 12Z MDLS INDICATED UPR TROF APCHG W CST TUE. THIS MAY HELP TO PUSH LOW LVL THETA E RDG S AND E INTO ERN ARIZONA THRU TIME AS SHOWN BY SOME MDLS BUT DO LITTLE TO SCOUR OUT THE MID LVL MSTR ALREADY IN PLACE. THRU TUE...EXPECT LITTLE CHANGE TO THE DVLPMT OF AFTN/EVE CONVECTION THAT HAS TAKEN PLACE THE LAST FEW DAYS. ACTIVITY ONCE AGAIN LIKELY TO DVLP ACRS THE HIR TRRN. THRU THE EXTND PD... STRENGTHENING SW FLO AHEAD OF UPR TROF LIKELY TO INTRO^DUCE DRIER AIR INTO FSCT RGN THU AND FRI. LAS ----. MATUSIEWICZ
In the hours before
Special weather statement, Sep 8, 3:01 PM MST, 1 hour 13 minutes before
NVZ009-AZZ003-CAZ019-090005- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 301 PM PDT (301 PM MST) SUN SEP 8 1996 ...STRONG THUNDERSTORMS IN FAR WESTERN SAN BERNADINO COUNTY IN CALIFORNIA AND FAR SOUTHWEST CLARK COUNTY IN NEVADA... AT 2:55 PDT LAS VEGAS DOPPLER RADAR INDICATED THUNDERSTORMS ALONG THE SPRING MOUNTAINDS AND OVER THE CLARK MOUNTAIN IN CALIFORNIA JUST WEST OF STATELINE. THE AREA OF THUNDERSTORMS OVER THE CLARK MOUNTAINS WERE THE STRONGEST AND COULD PRODUCE HEAVY DOWNPOURS AND WIND GUSTS TO 50 MPH. MOVEMENT OF THESE STORMS HAS BEEN TO THE NORTH AT 5 TO 10 MPH. REMEMBER...LIGHTNING MAY STRIKE SOME MILES AWAY FROM THE PARENT CLOUD. PRECAUTIONS SHOULD BE TzAKEN EVEN THOUGH THE THUNDERSTORM IS NOT DIRECTLY OVERHEAD. IF YOU ARE DRIVING...PROCEED WITH CAUTION. YOU MAY EXPERIENCE RAPID CHANGES IN VISIBILITY IN SHORT DISTANCES RESULTING IN POTENTIALLY HAZARDOUS DRIVING CONDITIONS.
Special weather statement, Sep 8, 3:03 PM MST, 1 hour 11 minutes before
NVZ009-CAZ019-090005- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 301 PM PDT (301 PM MST) SUN SEP 8 1996 ...STRONG THUNDERSTORMS IN FAR WESTERN SAN BERNADINO COUNTY IN CALIFORNIA AND FAR SOUTHWEST CLARK COUNTY IN NEVADA... AT 2:55 PDT LAS VEGAS DOPPLER RADAR INDICATED THUNDERSTORMS ALONG THE SPRING MOUNTAINDS AND OVER THE CLARK MOUNTAIN IN CALIFORNIA JUST WEST OF STATELINE. THE AREA OF THUNDERSTORMS OVER THE CLARK MOUNTAINS WERE THE STRONGEST AND COULD PRODUCE HEAVY DOWNPOURS AND WIND GUSTS TO 50 MPH. MOVEMENT OF THESE STORMS HAS BEEN TO THE NORTH AT 5 TO 10 MPH. REMEMBER...LIGHTNING MAY STRIKE SOME MILES AWAY FROM THE PARENT CLOUD. PRECAUTIONS SHOULD BE TAKEN EVEN THOUGH THE THUNDERSTORM IS NOT DIRECTLY OVERHEAD. IF YOU ARE DRIVING...PROCEED WITH CAUTION. YOU MAY EXPERIENCE RAPID CHANGES IN VISIBILITY IN SHORT DISTANCES RESULTING IN POTENTIALLY HAZARDOUS DRIVING CONDITIONS.
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 4:14 PM MST | Flash Flood Warning | VEF | Mohave | 61 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.