Alert archive / California / Special Weather Statements in 2009

Special Weather Statement, NWS Reno, NV

June 19, 2009Lassen County, California

NWS Reno, NV issued this special weather statement at Jun 19, 2009, 7:15 PM PDT for Lassen County, California. It was in force for 45 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 19, 2009, 7:15 PM PDT (02:15 UTC)
Expired: Jun 19, 2009, 8:00 PM PDT
In force: 45 min
Issued by: NWS Reno, NV

County Lassen County, CA

The radar

The Medford radar (KMAX), 167 km from the middle of the area, began a volume at 02:17 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Reno, NV (KREV), launched 00:00Z, 2.3 hours before the alert went out and 305 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: 45 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 2689 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Reno, NV wrote its last area forecast discussion before this special weather statement went out at Jun 19, 2:00 PM PDT, 5 hours 15 minutes earlier.

Area forecast discussion, Jun 19, 2:00 PM PDT, 5 hours 15 minutes before

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Hazardous weather outlook, Jun 19, 2:42 PM PDT, 4 hours 33 minutes before

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In the hours before

Local storm report, Jun 19, 4:04 PM PDT, 3 hours 11 minutes before

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Special weather statement, Jun 19, 4:10 PM PDT, 3 hours 5 minutes before

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Special weather statement, Jun 19, 4:31 PM PDT, 2 hours 44 minutes before

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Special weather statement, Jun 19, 6:31 PM PDT, 44 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RENO NV
631 PM PDT FRI JUN 19 2009

CAZ071-200230-
LASSEN-EASTERN PLUMAS-EASTERN SIERRA COUNTIES-
631 PM PDT FRI JUN 19 2009

...STRONG THUNDERSTORMS OVER NORTHERN AND WESTERN LASSEN COUNTY...

AT 623 PM PDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
THREE STRONG THUNDERSTORMS OVER NORTHERN LASSEN COUNTY...THE FIRST
STORM LOCATED SOUTH OF BIEBER...THE SECOND NEAR HIGHWAY 139 ABOUT 15
MILES NORTH OF EAGLE LAKE...AND THE THIRD NEAR EAGLE LAKE. THESE
STORMS ARE MOVING NORTHEAST AT 10 MPH.

OCCASIONAL LIGHTNING...HEAVY RAIN WITH RAINFALL AMOUNTS OF AROUND ONE
INCH PER HOUR REDUCING VISIBILITIES TO LESS THAN ONE MILE...PENNY
SIZE HAIL...AND GUSTY WINDS OF AROUND 30 TO 40 MPH... ARE EXPECTED
WITH THESE STORMS.

* LOCATIONS AFFECTED INCLUDE...EAGLE LAKE...SPAULDING...JUNCTION
  CA 139 AND CA 513...AND CHRISTIE CAMPGROUND.

BOATERS ON EAGLE LAKE SHOULD HEAD TO SHORE AS A STRONG THUNDERSTORM
WILL AFFECT EAGLE LAKE THROUGH 615 PM.

THESE STORMS WILL ALSO AFFECT TRAVELERS ON HIGHWAY 299 NEAR
BIEBER...AND HIGHWAY 139 NORTH OF EAGLE LAKE DRIVERS SHOULD EXPECT
STRONG GUSTY CROSS WINDS...WITH RAPID VISIBILITY REDUCTIONS. HEAVY
RAINFALL WILL RESULT IN PONDING WATER. SLOW DOWN WHEN ENCOUNTERING
HEAVY RAIN AND TURN ON YOUR HEADLIGHTS.

&&

LAT...LON 4092 12133 4094 12133 4104 12115 4105 12065
      4065 12065 4050 12094 4089 12094 4089 12132
      4091 12134
TIME...MOT...LOC 0125Z 235DEG 8KT 4094 12122 4095 12084
          4064 12084

MJD

Special weather statement, Jun 19, 6:57 PM PDT, 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RENO NV
657 PM PDT FRI JUN 19 2009

CAZ071-200230-
LASSEN-EASTERN PLUMAS-EASTERN SIERRA COUNTIES-
657 PM PDT FRI JUN 19 2009

...STRONG THUNDERSTORMS OVER NORTHERN AND WESTERN LASSEN COUNTY...

AT 623 PM PDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
THREE STRONG THUNDERSTORMS OVER NORTHERN LASSEN COUNTY...THE FIRST
STORM LOCATED SOUTH OF BIEBER...THE SECOND NEAR HIGHWAY 139 ABOUT 15
MILES NORTH OF EAGLE LAKE...AND THE THIRD NEAR EAGLE LAKE. THESE
STORMS ARE MOVING NORTHEAST AT 10 MPH.

OCCASIONAL LIGHTNING...HEAVY RAIN WITH RAINFALL AMOUNTS OF AROUND ONE
INCH PER HOUR REDUCING VISIBILITIES TO LESS THAN ONE MILE...PENNY
SIZE HAIL...AND GUSTY WINDS OF AROUND 30 TO 40 MPH... ARE EXPECTED
WITH THESE STORMS.

* LOCATIONS AFFECTED INCLUDE...EAGLE LAKE...SPAULDING...JUNCTION
  CA 139 AND CA 513...AND CHRISTIE CAMPGROUND.

BOATERS ON EAGLE LAKE SHOULD HEAD TO SHORE AS A STRONG THUNDERSTORM
WILL AFFECT EAGLE LAKE THROUGH 715 PM.

THESE STORMS WILL ALSO AFFECT TRAVELERS ON HIGHWAY 299 NEAR
BIEBER...AND HIGHWAY 139 NORTH OF EAGLE LAKE DRIVERS SHOULD EXPECT
STRONG GUSTY CROSS WINDS...WITH RAPID VISIBILITY REDUCTIONS. HEAVY
RAINFALL WILL RESULT IN PONDING WATER. SLOW DOWN WHEN ENCOUNTERING
HEAVY RAIN AND TURN ON YOUR HEADLIGHTS.

&&

LAT...LON 4092 12133 4094 12133 4104 12115 4105 12065
      4065 12065 4050 12094 4089 12094 4089 12132
      4091 12134
TIME...MOT...LOC 0125Z 235DEG 8KT 4094 12122 4095 12084
          4064 12084

MJD

Special weather statement, Jun 19, 7:15 PM PDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RENO NV
715 PM PDT FRI JUN 19 2009

CAZ071-200300-
LASSEN-EASTERN PLUMAS-EASTERN SIERRA COUNTIES-
715 PM PDT FRI JUN 19 2009

...STRONG THUNDERSTORM WITH VERY HEAVY RAIN IN NORTHWEST LASSEN
COUNTY INCLUDING PITTVILLE...

AT 706 PM PDT...NATIONAL WEATHER SERVICE METEOROLOGISTS ARE TRACKING
A STRONG THUNDERSTORM NEAR PITTVILLE...OR 7 MILES SOUTHWEST OF
NUBIEBER...MOVING SLOWLY NORTH NORTHWEST AT 10 MPH.

OCCASIONAL LIGHTNING...TORRENTIAL RAIN WITH RAINFALL AMOUNTS OVER
ONE INCH PER HOUR REDUCING VISIBILITY TO LESS THAN ONE HALF
MILE...HAIL UP TO PENNY SIZE...AND GUSTY WINDS OF AROUND 30 TO 40
MPH...ARE EXPECTED WITH THIS STORM.

* LOCATIONS AFFECTED INCLUDE...PITTVILLE...BIEBER...NUBIEBER...AND
  CA 299 AT SHASTA-LASSEN CO LINE.

THIS STORM WILL AFFECT TRAVELERS ON HIGHWAY 299 BETWEEN BIEBER AND
SHASTA-LASSEN COUNTY LINE. DRIVERS SHOULD EXPECT STRONG GUSTY CROSS
WINDS...WITH RAPID VISIBILITY REDUCTIONS. HEAVY RAINFALL WILL RESULT
IN PONDING WATER. SLOW DOWN OR PULL OVER TO A SAFE LOCATION WHEN
ENCOUNTERING HEAVY RAIN AND TURN ON YOUR HEADLIGHTS.

&&

LAT...LON 4119 12128 4119 12092 4113 12085 4092 12130
      4096 12133 4114 12134
TIME...MOT...LOC 0210Z 143DEG 12KT 4106 12132

MJD

The office that day

Everything else NWS Reno, NV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 19, 11:35 PM PDT	Special Weather Statement	REV	Storey	40 min
Jun 19, 11:42 PM PDT	Severe Thunderstorm Warning	REV	Churchill	33 min
Jun 20, 12:21 AM PDT	Special Weather Statement	REV	Churchill	54 min
Jun 20, 12:07 PM PDT	Special Weather Statement	REV	Pershing	53 min
Jun 20, 2:07 PM PDT	Special Weather Statement	REV	Storey	53 min
Jun 19, 6:31 PM PDT	Special Weather Statement	REV	Lassen	59 min
Jun 19, 6:57 PM PDT	Special Weather Statement	REV	Lassen	33 min
Jun 19, 7:30 PM PDT	Special Weather Statement	REV	Sierra	30 min
Jun 19, 8:51 PM PDT	Special Weather Statement	REV	Sierra	39 min
Jun 20, 10:43 AM PDT	Special Weather Statement	REV	Sierra	47 min

Nearby

Special Weather Statements in California, 2009 Every special weather statement in 2009

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; radar from the NEXRAD Level II archive.