Severe Thunderstorm Warning 7, NWS Sacramento, CA

Issued

Jun 26, 2000, 5:50 PM PDT (00:50 UTC)

Expired

Jun 26, 2000, 7:00 PM PDT

In force

70 min

Issued by

NWS Sacramento, CA

Area

Whole counties; the outline is the Mesonet’s reconstruction

Counties Plumas County, CA, Sierra County, CA

000 
WUUS56 KSTO 270054
SVRSAC
CAC063-091-270200-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SACRAMENTO CA
550 PM PDT MON JUN 26 2000

THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN SIERRA COUNTY IN CALIFORNIA
  SOUTH CENTRAL PLUMAS COUNTY IN CALIFORNIA

* VALID UNTIL 700 PM PDT

* AT 542 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A SEVERE THUNDERSTORM CONTINUED OVER EXTREME SOUTH CENTRAL         
  PLUMAS COUNTY...OR   ABOUT 12 MILES NORTH OF DOWNIEVILLE. THE CELL 
  WAS NEARLY STATIONARY. 


VERY LARGE HAIL IS LIKELY WITH THIS SEVERE THUNDERSTORM. IF YOU ARE 
IN THE PATH OF THE STORM...MOVE TO A SUBSTANTIAL SHELTER. EARLIER 
REPORTS INDICATED A STORM NEAR TRUCKEE PRODUCED 3/4 INCH HAIL. RADAR 
INDICATES HAIL AT LEAST THAT SIZE OR LARGER WITH THIS STORM.

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. REFER TO FLASH FLOOD 
WARNING ABOUT INFORMATION CONCERNING FLOODING.

REPORT SIGNIFICANT WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN SACRAMENTO.

LAT...LON 3977 12091 3964 12075 4000 12019 4019 12044

BARUFFALDI

NWS Sacramento, CA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 26, 3:00 PM PDT, 2 hours 50 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
300 PM PDT MON JUN 26 2000

LATEST SATELLITE IMAGERY AND DOPPLER RADAR RETURNS IN CONJUNCTION
WITH THE 15 MINUTE LIGHTNING PLOT ON AWIPS INDICATE A FEW HOT SPOTS
THIS AFTERNOON IN THE COUNTY WARNING AREA. BEST CONVECTIVE ACTIVITY
CURRENTLY OCCURRING NEAR THE CREST IN THE SIERRA FROM JUST EAST OF
MINERAL IN THE NORTH TO SOUTHEAST OF BLACK SPRINGS IN THE SOUTH.
NUMEROUS LIGHTNING STRIKES PRECIPITATED A PAIR OF NOWCASTS FOR THAT
ACTION. SECONDARY LESS EXCITING ACTIVITY IN THE NORTHERN LAKE COUNTY
MOUNTAINS NORTH OF ALDER SPRINGS WILL BEAR WATCHING THIS EVENING.
EXPECT AT LEAST SOME TYPE OF ISOLATED CONVECTION IN THE SIERRA
THROUGH THE WEEK EVEN WITH THE HIGH CONTINUING TO BUILD...BUT AFTER
COORDINATION WITH EUREKA OFFICE HAVE DROPPED MENTION IN NORTHERN LAKE
COUNTY TUESDAY...RETURNING IT BY WEDNESDAY AS A WAD OF INSTABILITY
MOVES BACK INTO THAT REGION. DAYTIME TEMPERATURES EXPECTED TO REMAIN
VERY WARM TO HOT...ESPECIALLY IN THE VALLEY OVER THE NEXT FEW DAYS
WITH VERY HIGH HEIGHTS OVER THE AREA. IN THE EXTENDED PERIOD HIGH
PRESSURE CONTINUES TO BUILD OVER THE AREA THROUGH THURSDAY. BY FRIDAY
BOTH THE MRF AND THE EUROPEAN MODELS DIG A SIGNIFICANT ENOUGH TROUGH
TOWARD NORTHERN CALIFORNIA TO DEEPEN THE MARINE LAYER...DECREASE
HEIGHTS AND DROP MAXIMUM TEMPERATURES A NOTCH OR TWO BELOW THE MUCH
ABOVE SEASONAL NORMAL TEMPERATURES OF THE WEEK. BOTH MEDIUM RANGE AND
NO-GAS MODELS MAKE ENOUGH OF A CASE FOR ENTRAINING SOME MONSOONAL-
TYPE MOISTURE INTO THE SIERRA TO KEEP THE LOW CHANCES OF THUNDERSTORM
ACTIVITY IN THE MOUNTAINS THAT ARE CURRENTLY IN THERE. LOOKING EVEN
FURTHER OUT...THE MODERATING COOLING TREND SHOULD CONTINUE ON INTO
THE PRE-INDEPENDENCE DAY WEEKEND. Randy Hartley

.STO...NONE.

BLU AU 066/080 067/081 066 69211
RBL UU 068/103 065/102 066 69000
SAC UU 060/096 059/097 060 69000

N

Severe Thunderstorm Warnings in California, 2000Every severe thunderstorm warning in 2000

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.