Alert archive / Idaho / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 5, NWS Spokane, WA

June 4, 2012Bonner County, Kootenai County, Shoshone County, Idaho

NWS Spokane, WA issued this severe thunderstorm warning at Jun 4, 2012, 6:01 PM PDT for Bonner County, Kootenai County, Shoshone County, Idaho. It was in force for 44 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 4, 2012, 6:01 PM PDT (01:01 UTC)
Expired
Jun 4, 2012, 6:45 PM PDT
In force
44 min
Issued by
NWS Spokane, WA
Area
Storm-based polygon

Counties Bonner County, ID, Kootenai County, ID, Shoshone County, ID

The radar

The Spokane radar (KOTX), 118 km from the middle of the area, began a volume at 01:04 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.

What was reported inside it

TimeReportWhereRemark
Jun 4, 6:41 PM PDTTSTM WND GST 613 W Granite, IDUS NAVY BUOY ON LAKE PEND OREILLE MEASURED WIND GUST

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 4, 12:46 PM PDTSevere Thunderstorm WatchSPC10 hr

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 1.0 hours before the alert went out and 57 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-pSkew-T log-p diagram, Spokane, WA at 00:00Z on 2012-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 00:00Z on 2012-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -34 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1397 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
-34 m²/s²
0-3 km storm-relative helicity
211 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.

497 
WUUS56 KOTX 050101
SVROTX
IDC017-055-079-050145-
/O.NEW.KOTX.SV.W.0005.120605T0101Z-120605T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
601 PM PDT MON JUN 4 2012

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BONNER COUNTY IN THE PANHANDLE OF IDAHO...
  THIS INCLUDES THE CITY OF SANDPOINT...
  NORTHEASTERN KOOTENAI COUNTY IN THE PANHANDLE OF IDAHO...
  NORTHWESTERN SHOSHONE COUNTY IN THE PANHANDLE OF IDAHO...

* UNTIL 645 PM PDT

* AT 555 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
A   SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE 
HAIL...WIND GUSTS TO 50 MPH...AND TORRENTIAL DOWNPOURS.  THIS   
STORM WAS LOCATED 10 MILES SOUTH OF BAYVIEW...OR 17 MILES 
NORTHEAST   OF COEUR D'ALENE...AND MOVING NORTH AT 45 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  BAYVIEW...CAREYWOOD...JORDAN CREEK CAMPGROUND...COCOLALLA...
  GRANITE...CABINET...CLARK FORK...DOVER...SANDPOINT...EAST HOPE...
  HOPE...PONDERAY...KOOTENAI...COLBURN AND ELMIRA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF ON OR NEAR LAKE PEND OREILLE...GET OUT OF THE WATER AND MOVE 
INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 
15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU 
ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER 
NOW. DON'T BE CAUGHT ON THE WATER IN A THUNDERSTORM!

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TUESDAY MORNING FOR THE PANHANDLE AND NORTH CENTRAL IDAHO AND EASTERN
WASHINGTON.

&&

LAT...LON 4850 11603 4800 11604 4769 11636 4774 11668
      4850 11657 4851 11605
TIME...MOT...LOC 0101Z 195DEG 41KT 4791 11646

$$

SB
2 follow-up statements
394 
WWUS56 KOTX 050120
SVSOTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
620 PM PDT MON JUN 4 2012

IDC055-079-050129-
/O.CAN.KOTX.SV.W.0005.000000T0000Z-120605T0145Z/
SHOSHONE ID-KOOTENAI ID-
620 PM PDT MON JUN 4 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN KOOTENAI AND
NORTHWESTERN SHOSHONE COUNTIES IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TUESDAY MORNING FOR THE PANHANDLE AND NORTH CENTRAL IDAHO AND
SOUTHEASTERN WASHINGTON.

LAT...LON 4850 11603 4800 11604 4799 11607 4803 11612
      4802 11616 4807 11626 4803 11632 4791 11632
      4790 11649 4799 11651 4800 11665 4850 11657
      4851 11605
TIME...MOT...LOC 0119Z 195DEG 41KT 4811 11638

$$

IDC017-050145-
/O.CON.KOTX.SV.W.0005.000000T0000Z-120605T0145Z/
BONNER ID-
620 PM PDT MON JUN 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM PDT
FOR SOUTHEASTERN BONNER COUNTY...

AT 613 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL.  THIS STORM WAS LOCATED NEAR GRANITE...OR 18 MILES SOUTHEAST OF
SANDPOINT...MOVING NORTH AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CABINET...CLARK FORK...DOVER...EAST HOPE...HOPE...PONDERAY...
KOOTENAI...COLBURN AND ELMIRA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

IF ON OR NEAR LAKE PEND OREILLE...GET OUT OF THE WATER AND MOVE 
INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 
15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU 
ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER 
NOW. DON'T BE CAUGHT ON THE WATER IN A THUNDERSTORM!

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TUESDAY MORNING FOR THE PANHANDLE AND NORTH CENTRAL IDAHO AND
SOUTHEASTERN WASHINGTON.

&&

LAT...LON 4850 11603 4800 11604 4799 11607 4803 11612
      4802 11616 4807 11626 4803 11632 4791 11632
      4790 11649 4799 11651 4800 11665 4850 11657
      4851 11605
TIME...MOT...LOC 0119Z 195DEG 41KT 4811 11638

$$

SB
054 
WWUS56 KOTX 050139
SVSOTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
639 PM PDT MON JUN 4 2012

IDC017-050148-
/O.EXP.KOTX.SV.W.0005.000000T0000Z-120605T0145Z/
BONNER ID-
639 PM PDT MON JUN 4 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BONNER COUNTY
WILL EXPIRE AT 645 PM PDT...

DOPPLER RADAR INDICATED THE STORM WAS NO LONGER SEVERE AND THE 
WARNING WAS ALLOWED TO EXPIRE. THIS STORM IS STILL CAPABLE OF DIME 
SIZE HAIL...HEAVY DOWNPOURS...AND FREQUENT LIGHTNING.

LAT...LON 4850 11603 4800 11604 4799 11607 4803 11612
      4802 11616 4807 11626 4803 11632 4791 11632
      4790 11649 4799 11651 4800 11665 4850 11657
      4851 11605
TIME...MOT...LOC 0138Z 195DEG 41KT 4832 11629

$$

SB

The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 4, 6:35 PM PDTSpecial Weather StatementOTXBoundary55 min
Jun 4, 6:50 PM PDTSpecial Weather StatementOTXLewis40 min
Jun 4, 7:07 PM PDTSpecial Weather StatementOTXBenewah38 min
Jun 4, 7:30 PM PDTSpecial Weather StatementOTXLewis15 min
Jun 4, 8:52 PM PDTSpecial Weather StatementOTXShoshone38 min
Jun 5, 10:53 AM PDTRiver Flood WarningOTXBoundary11 hr

Nearby

Severe Thunderstorm Warnings in Idaho, 2012Every severe thunderstorm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.