Alert archive / Idaho / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 40, NWS Missoula, MT
NWS Missoula, MT issued this severe thunderstorm warning at Jul 16, 2012, 1:27 PM PDT for Idaho County, Idaho. It was in force for 33 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
- Jul 16, 2012, 1:27 PM PDT (20:27 UTC)
- Expired
- Jul 16, 2012, 2:00 PM PDT
- In force
- 33 min
- Issued by
- NWS Missoula, MT
- Area
- Storm-based polygon
County Idaho County, ID
The radar
The Missoula radar (KMSX), 185 km from the middle of the area, began a volume at 20:29 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
Spokane, WA (KOTX), launched 12:00Z, 8.5 hours before the alert went out and 234 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
- 136 J/kg
- Mixed-layer CIN
- -116 J/kg
- Mixed-layer LCL
- 888 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 295 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
336 WUUS55 KMSO 162027 SVRMSO IDC049-162115- /O.NEW.KMSO.SV.W.0040.120716T2027Z-120716T2115Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MISSOULA MT 127 PM PDT MON JUL 16 2012 THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL IDAHO COUNTY IN CENTRAL IDAHO... * UNTIL 215 PM PDT. * AT 115 PM PDT...THE PUBLIC REPORTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING HAIL UP TO ONE INCH IN DIAMETER. THIS STORM WAS LOCATED NEAR RED RIVER HOT SPRINGS...OR ABOUT 43 MILES EAST OF GRANGEVILLE...AND WAS SLOWLY DRIFTING WEST AT 10 MPH. THIS STORM WAS ALSO PRODUCE VERY HEAVY RAINFALL AND COULD RESULT IN LOCAL FLASH FLOOD IMPACTS. * LOCATIONS IMPACTED INCLUDE...ELK CITY...FALL CREEK...GOLDEN... OROGRANDE...RED RIVER HOT SPRINGS AND DIXIE. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND HAIL...ALONG WITH FREQUENT LIGHTNING AND HEAVY RAIN. FOR YOUR PROTECTION...GO INDOORS AND STAY AWAY FROM WINDOWS. IF YOU ARE CAUGHT OUTSIDE...MOVE TO A WELL PROTECTED AREA. && LAT...LON 4550 11561 4579 11582 4609 11512 4564 11492 TIME...MOT...LOC 2024Z 072DEG 17KT 4577 11531 $$ DICKERSON
1 follow-up statement
716 WWUS55 KMSO 162100 SVSMSO SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MISSOULA MT 300 PM MDT MON JUL 16 2012 IDC049-162109- /O.CAN.KMSO.SV.W.0040.000000T0000Z-120716T2115Z/ IDAHO ID- 200 PM PDT MON JUL 16 2012 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL IDAHO COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BUT HEAVY RAINFALL REMAINS POSSIBLE WITH THE WEAKER STORM. LAT...LON 4550 11561 4579 11582 4609 11512 4564 11492 TIME...MOT...LOC 2059Z 072DEG 17KT 4572 11554 $$ DICKERSON
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 2:04 PM PDT | Flash Flood Watch | MSO | Clearwater, Idaho | 5 hr |
| Jul 16, 3:29 PM PDT | Special Weather Statement | MSO | Clearwater | 46 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.