Alert archive / Idaho / Tornado Warnings in 2009
Tornado Warning 2, NWS Pocatello, ID
NWS Pocatello, ID issued this tornado warning at Aug 6, 2009, 12:43 PM MDT for Custer County, Idaho. It was in force for 32 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
- Aug 6, 2009, 12:43 PM MDT (18:43 UTC)
- Expired
- Aug 6, 2009, 1:15 PM MDT
- In force
- 32 min
- Issued by
- NWS Pocatello, ID
- Area
- Storm-based polygon
County Custer County, ID
The radar
The Boise radar (KCBX), 153 km from the middle of the area, began a volume at 18:46 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 6, 12:49 PM MDT | HAIL 0.5 | Stanley, ID | HAIL AND HEAVY RAIN WITH WINDS FROM NORTH NORTHWEST AT 12-15 MPH WITH GUSTS TO 18 MPH. |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 6, 12:34 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Boise Airport, ID (KBOI), launched 12:00Z, 6.7 hours before the alert went out and 145 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1714 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- -60 m²/s²
- 0-3 km storm-relative helicity
- 324 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS55 KPIH 061843 TORPIH IDC037-061915- /O.NEW.KPIH.TO.W.0002.090806T1843Z-090806T1915Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE POCATELLO 1243 PM MDT THU AUG 6 2009 THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A * TORNADO WARNING FOR... WEST CENTRAL CUSTER COUNTY IN CENTRAL IDAHO... THIS INCLUDES THE CITY OF STANLEY... * UNTIL 115 PM MDT * AT 1240 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR STANLEY... MOVING NORTHEAST AT 30 MPH. LOCATIONS NEAR THE PATH OF THIS TORNADO INCLUDE...STANLEY...STANLEY LAKE REDFISH LAKE AND CUSTER. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING GOLF BALL SIZED SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT THURSDAY EVENING FOR SOUTHEASTERN IDAHO. && LAT...LON 4464 11480 4445 11448 4413 11493 4423 11514 TIME...MOT...LOC 1842Z 212DEG 24KT 4427 11496 $$
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 7:10 PM MDT | Severe Thunderstorm Warning | PIH | Blaine, Butte, Custer, Lincoln | 58 min |
| Aug 6, 10:52 AM MDT | Flash Flood Watch | PIH | 8 hr | |
| Aug 6, 11:50 AM MDT | Special Weather Statement | PIH | 40 min | |
| Aug 6, 12:04 PM MDT | Severe Thunderstorm Warning | PIH | Custer | 56 min |
| Aug 6, 12:21 PM MDT | Tornado Warning | PIH | Custer | 24 min |
| Aug 6, 1:03 PM MDT | Severe Thunderstorm Warning | PIH | Custer | 42 min |
| Aug 6, 1:12 PM MDT | Tornado Warning | PIH | Custer | 18 min |
| Aug 6, 1:39 PM MDT | Special Weather Statement | PIH | Bonneville | 51 min |
| Aug 6, 1:52 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville | 38 min |
| Aug 6, 2:18 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Bonneville, Caribou | 42 min |
| Aug 6, 2:29 PM MDT | Severe Thunderstorm Warning | PIH | Fremont, Madison | 46 min |
| Aug 6, 2:41 PM MDT | Severe Thunderstorm Warning | PIH | Bonneville, Madison, Teton | 49 min |
| Aug 6, 2:49 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville, Caribou | 41 min |
| Aug 6, 2:58 PM MDT | Severe Thunderstorm Warning | PIH | Fremont, Madison, Teton | 47 min |
| Aug 6, 3:19 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Blaine, Butte, Cassia, Minidoka and 2 more | 41 min |
| Aug 6, 3:33 PM MDT | Severe Thunderstorm Warning | PIH | Bonneville, Teton | 29 min |
| Aug 6, 3:37 PM MDT | Special Weather Statement | PIH | Blaine, Butte, Custer, Lincoln | 38 min |
| Aug 6, 3:44 PM MDT | Severe Thunderstorm Warning | PIH | Clark, Fremont, Jefferson | 39 min |
| Aug 6, 4:02 PM MDT | Special Weather Statement | PIH | Bingham | 43 min |
| Aug 6, 4:16 PM MDT | Severe Thunderstorm Warning | PIH | Custer | 29 min |
| Aug 6, 4:41 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Butte, Clark, Jefferson | 49 min |
| Aug 6, 4:51 PM MDT | Severe Thunderstorm Warning | PIH | Custer | 24 min |
| Aug 6, 5:03 PM MDT | Severe Thunderstorm Warning | PIH | Clark | 27 min |
| Aug 6, 5:20 PM MDT | Severe Thunderstorm Warning | PIH | Butte, Clark, Jefferson | 25 min |
| Aug 6, 5:52 PM MDT | Special Weather Statement | PIH | Custer | 53 min |
Nearby
Tornado Warnings in Idaho, 2009Every tornado warning in 2009Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.