Alert archive / California / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 6, NWS Reno, NV
NWS Reno, NV issued this severe thunderstorm warning at Jul 11, 2001, 10:57 AM PDT for Lassen County, Plumas County, California. It was in force for 33 min. No storm report in the archive falls 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.
The facts
- Issued
- Jul 11, 2001, 10:57 AM PDT (17:57 UTC)
- Expired
- Jul 11, 2001, 11:30 AM PDT
- In force
- 33 min
- Issued by
- NWS Reno, NV
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Lassen County, CA, Plumas County, CA
The nearest sounding before it
Reno, NV (KREV), launched 12:00Z, 6.0 hours before the alert went out and 232 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
- 242 J/kg
- Mixed-layer CIN
- -136 J/kg
- Mixed-layer LCL
- 1348 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KREV 111758 SVRRNO CAC035-063-111830- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RENO NV 1057 AM PDT WED JUL 11 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL LASSEN COUNTY IN NORTHERN CALIFORNIA THIS INCLUDES EAGLE LAKE AND SUSANVILLE EXTREME NORTH CENTRAL PLUMAS COUNTY IN NORTHERN CALIFORNIA * UNTIL 1130 AM PDT * AT 1048 AM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES SOUTH OF SUSANVILLE...OR ABOUT 24 MILES SOUTH OF EAGLE LAKE...MOVING NORTH AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... OVER SUSANVILLE AT 1105 AM PDT 6 MILES SOUTHEAST OF EAGLE LAKE...8 MILES SOUTHEAST OF SPAULDING AT 1130 AM PDT LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A SUBSTANTIAL SHELTER. REPORT5 DAMAGING WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE. LAT...LON 4026 12077 4027 12053 4067 12054 4065 12083
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 Jul 11, 9:30 AM PDT, 1 hour 27 minutes earlier.
Area forecast discussion, Jul 11, 9:30 AM PDT, 1 hour 27 minutes before
WESTERN NEVADA AND EASTERN CALIFORNIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RENO NV 930 AM PDT WED JUL 11 2001 UPPER TROF OFF NORTHERN CALIFORNIA COAST AS UPPER RIDGE REMAINS CENTERED OVER THE PLAIN STATES. UNSTABLE ATMOSPHERE WITH A GOOD AMOUNT OF MID AND LOWER LEVEL MOISTURE ACROSS WESTERN NEVADA TODAY. 12Z SOUNDINGS SHOW A FAIR AMOUNT OF DRYING ABOVE H5 HOWEVER. ISOLATED SHOWERS ALREADY OVER WESTERN PERSHING COUNTY AND NORTHERN WASHOE COUNTIES. CONVECTIVE TEMPERATURE WILL BE REACHED BY 18Z SO SCATTERED THUNDERSTORMS WILL FIRE UP EARLY. ALL MODELS SUPPORT AFTERNOON WESTERLY SURFACE WIND SETTING UP SURFACE CONVERGENCE IN AN ARC FROM NORTHERN WASHOE COUNTY ACROSS THE BASIN AND RANGE INTO MINERAL COUNTY. WILL HIT THESE AREAS THE HARDEST MENTIONING LOCALLY HEAVY RAIN THOUGH SHEAR AND PROPAGATION MORE LIKELY TO SUPPORT SEVERE STORMS AS OPPOSED TO HEAVY RAIN PRODUCERS. UPPER RIDGE EXPANDS BACK TOWARD THE 4 CORNERS AREA TONIGHT AND TOMORROW AS TROF IS PUSHED TO THE PACIFIC NW. A DRIER SW FLOW WILL RESULT. MODELS HANG ON TO INSTABILITY ACROSS THE FAR NORTH THURSDAY BUT MOST AREAS SHOULD SEE MOSTLY SUNNY SKIES AND SEASONABLE TEMPERATURES. SGW .REV...NONE.
The office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 6:45 PM PDT | Flash Flood Warning | REV | Mono | 45 min |
| Jul 10, 7:35 PM PDT | Flash Flood Warning | REV | Mono | 40 min |
Nearby
Severe Thunderstorm Warnings in California, 2001Every severe thunderstorm warning in 2001
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.