Alert archive / California / Special Weather Statements in 2021

Special Weather Statement, NWS Hanford, CA

June 28, 2021Tuolumne County, California

NWS Hanford, CA issued this special weather statement at Jun 28, 2021, 5:44 PM PDT for Tuolumne County, California. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 28, 2021, 5:44 PM PDT (00:44 UTC)
Expired: Jun 28, 2021, 6:30 PM PDT
In force: 46 min
Issued by: NWS Hanford, CA

County Tuolumne County, CA

The nearest sounding before it

Reno, NV (KREV), launched 00:00Z, 0.7 hours before the alert went out and 203 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 135 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 4007 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: -42 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hanford, CA wrote its last area forecast discussion before this special weather statement went out at Jun 28, 5:34 PM PDT, 10 minutes earlier.

Area forecast discussion, Jun 28, 5:34 PM PDT, 10 minutes before

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In the hours before

Special weather statement, Jun 28, 3:59 PM PDT, 1 hour 45 minutes before

Special Weather Statement
National Weather Service San Joaquin Valley CA
359 PM PDT Mon Jun 28 2021

CAZ192-282330-
Central Sierra CA-
359 PM PDT Mon Jun 28 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN MARIPOSA...
SOUTHEASTERN TUOLUMNE AND NORTHEASTERN MADERA COUNTIES UNTIL 430 PM
PDT...

At 359 PM PDT, Doppler radar was tracking a strong thunderstorm 10
miles west of June Lake, moving southwest at 10 mph.

Winds in excess of 40 mph and dangerous lightning will be possible
with this storm.

Locations impacted include...
Merced Lake High Sierra Camp, Vogelsang High Sierra Camp, Merced Lake
Ranger Station and Green Mtn.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3782 11921 3780 11920 3774 11927 3773 11926
      3773 11924 3771 11922 3774 11919 3774 11917
      3773 11917 3755 11924 3767 11952 3786 11928
TIME...MOT...LOC 2259Z 027DEG 9KT 3776 11926

CMc

Special weather statement, Jun 28, 5:13 PM PDT, 31 minutes before

Special Weather Statement
National Weather Service San Joaquin Valley CA
513 PM PDT Mon Jun 28 2021

CAZ194-195-290100-
Lake Isabella CA-Sequoia Kings CA-
513 PM PDT Mon Jun 28 2021

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL TULARE COUNTY UNTIL
600 PM PDT...

At 512 PM PDT, Doppler radar was tracking a strong thunderstorm 10
miles southwest of Olancha, moving southwest at 15 mph.

Pea size hail and wind gusts up to 50 mph will be possible with this
storm.

Locations impacted include...
Casa Vieja Meadows, Blackrock and Beach Meadows.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3614 11808 3610 11807 3593 11813 3605 11843
      3629 11822 3625 11811 3622 11811 3617 11806
TIME...MOT...LOC 0012Z 025DEG 15KT 3619 11817

Barlow

Special weather statement, Jun 28, 5:44 PM PDT, 0 minutes before

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The office that day

Everything else NWS Hanford, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 28, 5:13 PM PDT	Special Weather Statement	HNX	Tulare	47 min
Jun 29, 2:14 PM PDT	Special Weather Statement	HNX	Mono	46 min
Jun 29, 3:15 PM PDT	Special Weather Statement	HNX	Mariposa	45 min
Jun 29, 3:54 PM PDT	Special Weather Statement	HNX	Kern	51 min
Jun 29, 4:23 PM PDT	Special Weather Statement	HNX	Kern	22 min

Nearby

Special Weather Statements in California, 2021 Every special weather statement in 2021

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.