Alert archive / California / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 26, NWS Reno, NV
NWS Reno, NV issued this severe thunderstorm warning at Aug 3, 2000, 3:50 PM PDT for Mono County, California. It was in force for 40 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Aug 3, 2000, 3:50 PM PDT (22:50 UTC)
- Expired
- Aug 3, 2000, 4:30 PM PDT
- In force
- 40 min
- Issued by
- NWS Reno, NV
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Mono County, CA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 3, 3:50 PM PDT | Hail 0.75 | Mammoth Lakes, CA | Spotter report of 3/4 inch hail in Mammoth Lakes, California. |
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
Reno, NV (KREV), launched 12:00Z, 10.8 hours before the alert went out and 213 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
- 64 J/kg
- Mixed-layer CIN
- -237 J/kg
- Mixed-layer LCL
- 2445 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KREV 032252 SVRRNO CAC051-032330- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RENO NV 350 PM PDT THU AUG 3 2000 THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL MONO COUNTY IN CENTRAL CALIFORNIA THIS INCLUDES THE CITY OF MAMMOTH LAKES * UNTIL 430 PM PDT * AT 340 PM PDT...THE PUBLIC REPORTED A SEVERE THUNDERSTORM OVER MAMMOTH LAKES...MOVING NORTHEAST AT 20 MPH. HAIL UP TO !3/4 INCHES IN DIAMETER HAS BEEN REPORTED WITH THIS STORM. IF YOU ARE IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A SUBSTANTIAL SHELTER. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORC1EMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN RENO. LAT...LON 3767 11907 3754 11891 3779 11856 3795 11876 &&
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 Reno, NV wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 3, 2:35 PM PDT, 1 hour 15 minutes earlier.
Area forecast discussion, Aug 3, 2:35 PM PDT, 1 hour 15 minutes before
NORTHEAST CALIFORNIA AND WESTERN NEVADA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
235 PM PDT THU AUG 3 2000
WEAK PERTURBATIONS MOVING NORTHWARD AROUND RIDGE WILL CONTINUE TO
PRODUCE THUNDERSTORM ACTIVITY THROUGH THE EVENING HOURS. A TROUGH
APPROACHING THE PACIFIC COAST WILL CAUSE A TIGHTENING SOUTHWEST
GRADIENT WHICH WILL BRING IN DRIER AND MORE STABLE AIRMASS FOR FRIDAY
INTO SATURDAY OVER THE FORECAST AREA. 12Z AVN SHOWS A WEAK SHORTWAVE
MOVING THROUGH THE SOUTHWEST FLOW INTO NRN CA BY SATURDAY AFTN. SO WL
KEEP SLIGHT CHC MENTION ACRS XTRME NRN PTN OF FORECAST AREA FOR
SATURDAY. DO EXPECT SLIGHT COOLING TO ACCOMPANY THE WEAK SHORTWAVE.
SOUTHWEST FLOW WILL CONTINUE THE DRY CONDITIONS THROUGH MONDAY. BY
TUESDAY...MOIST SOUTHERLY FLOW RETURNS INTO SRN AND ERN PTNS OF
FORECAST AREA WITH TEMPS INCREASING BACK TO ABOVE NORMAL READINGS.
ADAMS
.REV...EASTERN CALIFORNIA...NONE.
WESTERN NEVADA...SEVERE TSTM WATCH FOR PERSHING COUNTY
NVZ004 TIL 6PM.The office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 2:33 PM PDT | Severe Thunderstorm Warning | REV | El Dorado | 27 min |
| Aug 3, 2:56 PM PDT | Severe Thunderstorm Warning | REV | Alpine, El Dorado | 34 min |
| Aug 3, 3:30 PM PDT | Severe Thunderstorm Warning | REV | El Dorado, Placer | 45 min |
| Aug 3, 3:55 PM PDT | Severe Thunderstorm Warning | REV | Lassen, Sierra | 65 min |
| Aug 3, 4:38 PM PDT | Severe Thunderstorm Warning | REV | Alpine, Mono | 37 min |
Nearby
Severe Thunderstorm Warnings in California, 2000Every severe thunderstorm warning in 2000
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.