Alert archive / Arizona / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 92, NWS Las Vegas, NV
NWS Las Vegas, NV issued this severe thunderstorm warning at Sep 11, 1997, 4:45 PM MST for Mohave County, Arizona. It was in force for 60 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 11, 1997, 4:45 PM MST (23:45 UTC)
- Expired
- Sep 11, 1997, 5:45 PM MST
- In force
- 60 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, 11.8 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
- 588 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 1069 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLAS 112346 RRA SVRLAS AZC015-120045- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 445 PM PDT (445 PM MST) THU SEP 11 1997 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 545 PM PDT (545 PM MST) FOR PEOPLE IN THE FOLLOWING LOCATIONS...... IN NORTHWEST ARIZONA ...SOUTHEASTERN MOHAVE COUNTY AT 440 PM...LAS VEGAS DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ABOUT 16 MILES SOUTHEAST OF WIKIEUP AND 24 MILES SOUTH OF WIKIEUP. MOVEMENT WAS TO THE NORTHEAST AT 10 MPH AND WILL MOVE ACROSS U.S. HIGHWAY 93 OVER EXTREME SOUTHEAST MOHAVE COUNTY DURING THE NEXT 30 MINUTES. 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 AR:EAS WHERE WATER COVERS THE ROAD. KOSIER
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 11, 2:09 PM MST, 2 hours 36 minutes earlier.
Area forecast discussion, Sep 11, 2:09 PM MST, 2 hours 36 minutes before
MOJAVE DESERT/SOUTHERN GREAT BASIN AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 205 PM PDT THU SEP 11 1997 STLT/88D SHWS TSTMS E OF FA WITH CU FIELD OVR AZ ZNS 1/3. RMNDR OF FA CLR AND BREEZY ATTM. WV LOOP SHWS VORT MAX OVR NE NV ACCELERATING NEWD WITH MDLS SIMILAR IN RAPIDLY LIFTING VORT MAX INTO ERN ID/WRN WY BY MIDNGT. DRY/SUBSIDENT AIRMASS WILL ENCOMPASS ENTIRE FA BY MRNG. NXT UPSTREAM S/WV IS NOW OVR THE WATERS OF THE WRN GULF OF AK. THIS S/WV WILL DIG SEWD...CARVING TROF OUT ALNG 135W BY LATE SAT AFTN. RH PROGS SHW LTL MSTR IN SWLY FLO NXT TWO DAYS. BREEZY AFTNS ONLY REAL SIGN WX OF ANY CONSEQUENCE. LGT WINDS/LOWER DWPTS WILL TRANSLATE INTO COOLER MRNG LOWS NXT FEW MRNGS. LTL TEMP CHG ANTICIPATED IN THE DAYS. HRCN LINDA IS NR 16N/109W AS OF 2 PM PDT THU. HURN FCST TO MOV IN A W-NW DIRECTION AS RDG BUILDS TO THE NE. BY ERLY NXT WEEK WILL LIKELY SEE SOM OF THE MSTR FRM LINDA BEING CAUGHT IN SW FLO AND BROUGHT INTO SWRN STATES. IN THE XTTND TROF IN THE ERN PAC APCHS W CST. DRY/BREEZY SW FLO CONTS. LAS 0000. PIERCE SRN NV...NONE ERN CA...NONE NW AZ ...NONE
Nearby
Severe Thunderstorm Warnings in Arizona, 1997Every severe thunderstorm warning in 1997
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.