Alert archive / California / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 8, NWS Las Vegas, NV
NWS Las Vegas, NV issued this severe thunderstorm warning at Jun 5, 1997, 2:49 PM PDT for Inyo County, California. It was in force for 56 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 5, 1997, 2:49 PM PDT (21:49 UTC)
- Expired
- Jun 5, 1997, 3:45 PM PDT
- In force
- 56 min
- Issued by
- NWS Las Vegas, NV
- Area
- Whole counties
County Inyo County, CA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 5, 2:55 PM PDT | Hail 0.75 | Independence, CA | The Inyo County Sheriff observed marble and dime sized hail for a brief period. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Mercury/Desert R, NV (KDRA), launched 12:00Z, 9.8 hours before the alert went out and 127 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2273 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 110 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 Jun 5, 2:30 PM PDT, 19 minutes earlier.
Area forecast discussion, Jun 5, 2:30 PM PDT, 19 minutes before
MOJAVE DESERT/SOUTHERN GREAT BASIN AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 230 PM PDT THU JUN 5 1997 RAMSDIS DEPICTING NUMEROUS LGTG STRIKES OVR SRN SIERRA/INYO CO... AND NRN NYE CO ATTM. HAVE WORDED FCST AS SUCH TO KEEP THIS CONVECTIVE ACTIVITY OVR THESE AREAS INTO THE EVEG. AS UPR LOW MOVES INTO THE GULFOFCA VCNTY BY TMW AFTN THIS WL PRODUCE A SELY UPR FLO REGIME OVR THE ERN TWO THIRDS OF THE FA. THIS FLOW FAVORABLE IN BRINGING IN INCRG LOW LVL MSTR WITH AN IMPRESSIVE INCREASE IN H7/H8 MIXG RATIOS AND INCRG LAPSE RATES. THUS... BROAD BRUSH OF CONVECTIVE ACTIVITY WARRANTED THRU MOST OF THE FA. COLD POOL TO MOVE OVR TRI-SATE AREA WITH ETA DEPICTING BETWEEN -15 TO -18 DEGREES OVR THIS REGION. THIS COLD POOL COMBINED WITH DIURNAL HEATING SHOULD BE ENOUGH FOR THIS IMPORTED MSTR. BY SAT LOW PUSHES EWRD SLGTLY INTO SE AZ AND OVR THE STATE OF AZ BY SUN. THIS SHOULD SHUNT SOME OF THE MSTR FROM MOVG INTO SRN NV AND NW AZ. WITH NO REAL FORCING MECHANISM TO PUSH THIS MSTR OUT KEPT ISOLD TSRA- OVR AZ ZNS 1 AND 3 SAT AND FAR NRN REACHES OF FA. AS MAIN FEATURE TRANSLATES EWRD IN XNTDD SHOULD REMAIN DRY SRN TWO THIRDS OF FA WITH COOLER THAN NORMAL TEMPS WITH SOME LINGERING PRECIP TO THE N. LAS0100 CORDERO. SRN NV...NONE ERN CA...WND ADVSY DSRTS OF SAN BERNARDINO CO TIL 9 PM PDT NW AZ...NONE
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 2:49 PM PDT | Flash Flood Warning | VEF | Inyo | 56 min |
Nearby
Severe Thunderstorm Warnings in California, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.