Alert archive / Idaho / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 21, NWS Boise, ID
NWS Boise, ID issued this severe thunderstorm warning at Aug 26, 2012, 6:04 PM MDT for 4 counties in Idaho. It was in force for 56 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 26, 2012, 6:04 PM MDT (00:04 UTC)
- Expired
- Aug 26, 2012, 7:00 PM MDT
- In force
- 56 min
- Issued by
- NWS Boise, ID
- Area
- Storm-based polygon
Counties Gooding County, ID, Jerome County, ID, Owyhee County, ID, Twin Falls County, ID
The radar
The Boise radar (KCBX), 143 km from the middle of the area, began a volume at 00:04 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 26, 7:07 PM MDT | TSTM WND DMG | Jerome, ID | LARGE TREE UPROOTED. REPORTED TO LOCAL TWIN FALLS TV STATION KMVT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Boise Airport, ID (KBOI), launched 00:00Z, 0.1 hours before the alert went out and 147 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
- 4170 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
329 WUUS55 KBOI 270004 SVRBOI IDC047-053-073-083-270100- /O.NEW.KBOI.SV.W.0021.120827T0004Z-120827T0100Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BOISE ID 604 PM MDT SUN AUG 26 2012 THE NATIONAL WEATHER SERVICE IN BOISE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN GOODING COUNTY IN SOUTH CENTRAL IDAHO... WEST CENTRAL JEROME COUNTY IN SOUTH CENTRAL IDAHO... NORTHWESTERN TWIN FALLS COUNTY IN SOUTH CENTRAL IDAHO... AND EAST CENTRAL OWYHEE COUNTY IN SOUTHWEST IDAHO... * UNTIL 700 PM MDT. * AT 555 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 7 MILES NORTHWEST OF ROSEWORTH...OR 27 MILES WEST OF TWIN FALLS...AND WAS MOVING NORTHEAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... CASTLEFORD AROUND 610 PM MDT... BUHL AROUND 625 PM MDT... HAGERMAN AROUND 645 PM MDT... WENDELL AROUND 650 PM MDT... JEROME AROUND 655 PM MDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THE STORM...TAKE IMMEDIATE ACTION TO PROTECT LIFE AND PROPERTY. SEEK SHELTER INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS. && LAT...LON 4290 11493 4272 11448 4238 11492 4247 11512 TIME...MOT...LOC 0003Z 209DEG 25KT 4251 11495 $$ GSKARI
1 follow-up statement
091 WWUS55 KBOI 270036 SVSBOI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BOISE ID 636 PM MDT SUN AUG 26 2012 IDC047-053-073-083-270100- /O.CON.KBOI.SV.W.0021.000000T0000Z-120827T0100Z/ GOODING ID-JEROME ID-OWYHEE ID-TWIN FALLS ID- 636 PM MDT SUN AUG 26 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM MDT FOR NORTHWESTERN TWIN FALLS...EAST CENTRAL OWYHEE...WEST CENTRAL JEROME AND SOUTHEASTERN GOODING COUNTIES... AT 627 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR BUHL...OR 17 MILES WEST OF JEROME...AND WAS MOVING NORTHEAST AT 30 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... BUHL AND CASTLEFORD AROUND 635 PM MDT... HAGERMAN AROUND 645 PM MDT... WENDELL AROUND 650 PM MDT... JEROME AROUND 655 PM MDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THE STORM...TAKE IMMEDIATE ACTION TO PROTECT LIFE AND PROPERTY. SEEK SHELTER INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS. && LAT...LON 4290 11493 4272 11448 4238 11492 4247 11512 TIME...MOT...LOC 0036Z 209DEG 25KT 4271 11480 $$ GSKARI
The office that day
Everything else NWS Boise, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 6:48 PM MDT | Special Weather Statement | BOI | Twin Falls | 42 min |
| Aug 26, 7:29 PM MDT | Special Weather Statement | BOI | Jerome | 46 min |
| Aug 26, 7:41 PM MDT | Severe Thunderstorm Warning | BOI | Jerome, Twin Falls | 34 min |
| Aug 26, 10:08 PM MDT | Special Weather Statement | BOI | Jerome | 37 min |
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.