Tornado Warning 8, NWS Sacramento, CA

010 
WWUS56 KSTO 250337
SVSSTO

Severe Weather Statement
National Weather Service Sacramento CA
837 PM PDT Fri May 24 2019

CAC089-250400-
/O.CON.KSTO.TO.W.0008.000000T0000Z-190525T0400Z/
Shasta CA-
837 PM PDT Fri May 24 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM PDT FOR SOUTH
CENTRAL SHASTA COUNTY...
    
At 835 PM PDT, a severe thunderstorm capable of producing a tornado 
was located near interstate 5 and Anderson, or 9 miles south of 
Redding, moving south at 15 mph.

HAZARD...Tornado and two inch hail.

SOURCE...Radar indicated rotation and funnel cloud reported.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 4049 12242 4055 12228 4043 12216 4039 12237
TIME...MOT...LOC 0335Z 346DEG 15KT 4044 12232 

TORNADO...RADAR INDICATED
HAIL...2.00IN

$$

cs

695 
WWUS56 KSTO 250356
SVSSTO

Severe Weather Statement
National Weather Service Sacramento CA
856 PM PDT Fri May 24 2019

CAC089-250405-
/O.EXP.KSTO.TO.W.0008.000000T0000Z-190525T0400Z/
Shasta CA-
856 PM PDT Fri May 24 2019

...THE TORNADO WARNING FOR SOUTH CENTRAL SHASTA COUNTY WILL EXPIRE AT
900 PM PDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 4049 12242 4055 12228 4043 12216 4039 12237
TIME...MOT...LOC 0355Z 345DEG 22KT 4038 12230 

$$

cs

Area Forecast Discussion
National Weather Service Sacramento CA
154 PM PDT Fri May 24 2019

.SYNOPSIS...
Scattered rain showers and thunderstorms mainly mountains and
foothills today and Saturday as one low pressure system moves
east and another drops in to take its place. Locally heavy rain
possible. More widespread showers or thunderstorms on Sunday and
Sunday night with snow for the higher Sierra elevations.
Afternoon mountain showers continuing through mid week. &&

.DISCUSSION...
Showers and a few isolated thunderstorms have popped up over the
Sierra early this afternoon, thanks to a upper level disturbance
moving through the area. Favorable conditions for shower and
tstorm activity will likely continue into the early evening hours,
with most of the precip staying confined to the terrain. However,
some shower activity may slip into the Sacramento valley this
evening as the upper low drops farther southward. Overall
precipitation amounts are expected to remain light but some
embedded heavier showers/thunderstorms could bring locally heavier
precipitation.

Looking to Saturday a Pacific Northwest trough will drop
southward through Northern California and will mostly be an
inside slider type of system. Therefore, the biggest chance of
showers or thunderstorms will be over the eastern half of the
forecast area. Once again precip amounts overall will be light
but heavier showers will be possible. The passage of the trough
will also bring cooler air into the north state, putting our high
temperatures to a few to several degrees below normal.

Come Sunday, a stronger low pressure system is forecast to arrive
in northern California. Showers and thunderstorms will remain in
the forecast but over the entire CWA this time. This system will
usher in even cooler air which will drop snow levels and put our
daytime highs down to 10-15 degrees below normal. Snow levels will
likely drop to below pass levels, which will likely bring travel
impacts to the Sierra. The greatest threat for snowfall and
potential accumulation will be Sunday - Monday morning, so
travelers should take note of the road conditions and forecast
before heading out. This storm system will shift eastward into
the Great Basin on Monday, placing the shower threat on our
eastern mountains. By the afternoon, snow levels should be above
pass levels with daytime highs climbing a bit although remaining
below normal.

&&

.EXTENDED DISCUSSION (Tuesday THROUGH Friday)

Unsettled pattern continues through the period as ensembles
support troughing across the area through the week. Chances for
showers or thunderstorms expected over higher terrain throughout
the week, mainly in the afternoon and early evening hours.
Elsewhere, dry conditions are expected. Temperatures will be on
the rise through the period with Valley highs in the upper 70s to
low 80s Tuesday, reaching into the mid and upper 80s by late next
week.

&&

.AVIATION...

Mainly VFR conditions at TAF sites next 24 hours. Local MVFR/IFR
conditions in showers and thunderstorms mainly over the
foothills/mountains and the N Sac Valley through the overnite hrs
obscuring higher terrain Sustained winds less than 15 kts at TAF
sites with local gusts to 20 kts. After sunrise Sat morning,
marine cloudiness spreading inland into the Srn Sac Vly with MVFR
CIGS 015-025 expected.

&&

.STO WATCHES/WARNINGS/ADVISORIES...
None.
&&

Special Weather Statement
National Weather Service Sacramento CA
517 PM PDT Fri May 24 2019

CAZ063-064-250115-
Clear Lake/Southern Lake County-Mountains Southwestern Shasta County
to Northern Lake County-
517 PM PDT Fri May 24 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT WEST CENTRAL COLUSA AND
CENTRAL LAKE COUNTIES...

At 516 PM PDT, radar indicated strong thunderstorms located over
northern Lake county along a line extending from 9 miles west of
Fouts Springs to to Barkerville. Movement was south at 20 mph.

Half inch hail is possible with these storms.

Locations impacted include...
Lakeport, Upper Lake, Clearlake, Barkerville, Mount Konocti,
Glenhaven, Soda Bay, Hough Springs, North Lakeport, Konocti Bay,
Finley, Hidden Valley Lake, Kelseyville, Buckingham Park, Indian
Valley Reservoir, Lower Lake, Clearlake Oaks, Nice, Clearlake Park
and Lucerne.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 3901 12292 3878 12244 3927 12253 3942 12297
TIME...MOT...LOC 0016Z 344DEG 25KT 3932 12284 3921 12266 3914 12258

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Special Weather Statement
National Weather Service Sacramento CA
603 PM PDT Fri May 24 2019

CAZ013-250200-
Shasta Lake Area / Northern Shasta County-
603 PM PDT Fri May 24 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL SHASTA COUNTY...

At 603 PM PDT, a strong thunderstorm was located over Fisher, or 20
miles south of Mount Shasta, moving southeast at 10 mph.

Dime size hail is possible with this storm.

Locations impacted include...
Lakehead, Fisher, O'brien, Sims, Pollard Flat, Castle Crag and
Lakehead-Lakeshore.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 4103 12251 4115 12235 4095 12200 4077 12229
TIME...MOT...LOC 0103Z 315DEG 8KT 4103 12235

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Special Weather Statement
National Weather Service Sacramento CA
639 PM PDT Fri May 24 2019

CAZ013-250245-
Shasta Lake Area / Northern Shasta County-
639 PM PDT Fri May 24 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL SHASTA COUNTY...

At 639 PM PDT, a strong thunderstorm was located near Pollard Flat,
or 21 miles south of Mount Shasta, moving southeast at 15 mph.

Dime size hail is possible with this storm.

Locations impacted include...
Lakehead, Sugarloaf, Fisher, O'brien, Lakehead-Lakeshore, Vollmers,
Sims and Pollard Flat.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 4100 12211 4078 12234 4098 12258 4101 12255
      4101 12253 4106 12252 4107 12254 4109 12251
      4110 12246 4114 12244
TIME...MOT...LOC 0139Z 308DEG 12KT 4103 12246

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Special Weather Statement
National Weather Service Sacramento CA
728 PM PDT Fri May 24 2019

CAZ013-015-066-250315-
Northeast Foothills/Sacramento Valley-Northern Sacramento
Valley-Shasta Lake Area / Northern Shasta County-
728 PM PDT Fri May 24 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL SHASTA
COUNTY...

At 727 PM PDT, radar indicated strong thunderstorms were located
along a line extending from near Mountain Gate to Shasta Dam.
Movement was south at 20 mph.

Winds in excess of 40 mph and dime size hail are possible with these
storms.

Locations impacted include...
Redding, Shasta Dam, Shasta Lake, Central Valley Cdp, O'brien,
Central Valley and Mountain Gate.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

If you are on or near Shasta Lake, get out of the water and move
indoors or inside a vehicle. Remember, lightning can strike out to
10 miles from the parent thunderstorm. If you can hear thunder, you
are close enough to be struck by lightning. Move to safe shelter
now! Do not be caught on the water in a thunderstorm.

LAT...LON 4062 12204 4055 12244 4079 12249 4084 12217
TIME...MOT...LOC 0227Z 347DEG 19KT 4076 12224 4073 12240

cs

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SACRAMENTO CA
757 PM PDT FRI MAY 24 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0752 PM     HAIL             1 N PINE GROVE          40.68N 122.35W
05/24/2019  E1.75 INCH       SHASTA             CA   PUBLIC

            GOLF BALL SIZE HAIL REPORTED IN SHASTA LAKE
            CITY. PICTURE SENT VIA TWITTER.

&&

CM

Special Weather Statement
National Weather Service Sacramento CA
805 PM PDT Fri May 24 2019

CAZ015-016-250345-
Northern Sacramento Valley-Central Sacramento Valley-
805 PM PDT Fri May 24 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTH CENTRAL TEHAMA...
NORTHWESTERN BUTTE AND NORTHEASTERN GLENN COUNTIES...

At 804 PM PDT, radar indicated strong thunderstorms were located
along a line extending from near Orland to 7 miles southwest of
Corning. Movement was southeast at 20 mph.

Half inch hail is possible with these storms.

Locations impacted include...
Chico, Orland, Nord, Black Butte Dam, Hamilton City, Black Butte
Summit and Black Butte Lake.

LAT...LON 3977 12185 3960 12232 3990 12238 3987 12210
TIME...MOT...LOC 0304Z 316DEG 19KT 3978 12213 3983 12225

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