Alert archive / Idaho / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 27, NWS Spokane, WA
NWS Spokane, WA issued this severe thunderstorm warning at Jul 16, 2012, 5:39 PM PDT for Benewah County, Latah County, Shoshone County, Idaho. It was in force for 51 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
- Jul 16, 2012, 5:39 PM PDT (00:39 UTC)
- Expired
- Jul 16, 2012, 6:30 PM PDT
- In force
- 51 min
- Issued by
- NWS Spokane, WA
- Area
- Storm-based polygon
Counties Benewah County, ID, Latah County, ID, Shoshone County, ID
The radar
The Spokane radar (KOTX), 124 km from the middle of the area, began a volume at 00:40 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 |
|---|---|---|---|
| Jul 16, 5:50 PM PDT | HAIL 1 | 6 Ne Harvard, ID | THE HAIL WAS REPORTED AT CAMP GRIZZLY. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Spokane, WA (KOTX), launched 00:00Z, 0.7 hours before the alert went out and 82 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
- 594 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 2101 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
022
WUUS56 KOTX 170039
SVROTX
IDC009-057-079-170130-
/O.NEW.KOTX.SV.W.0027.120717T0039Z-120717T0130Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
539 PM PDT MON JUL 16 2012
THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN BENEWAH COUNTY IN THE PANHANDLE OF IDAHO...
NORTHERN LATAH COUNTY IN THE PANHANDLE OF IDAHO...
SOUTHWESTERN SHOSHONE COUNTY IN THE PANHANDLE OF IDAHO...
* UNTIL 630 PM PDT
* AT 536 PM PDT...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 11
MILES EAST OF HARVARD...OR 25 MILES SOUTH OF ST. MARIES...AND
MOVING NORTHWEST AT 15 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HARVARD...SANTA...POTLATCH...ONAWAY AND EMIDA
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM WILL ALSO PRODUCE EXTREMELY HEAVY RAINFALL. IF DRIVING
THROUGH THE STORM REDUCE YOUR SPEED TO LOWER THE RISK OF
HYDROPLANING. ALSO BE PREPARED FOR PONDING OF WATER IN LOW LYING
AREAS.
&&
LAT...LON 4695 11604 4692 11614 4693 11631 4688 11632
4678 11689 4704 11700 4723 11629
TIME...MOT...LOC 0039Z 141DEG 14KT 4696 11651
$$
KELCH2 follow-up statements
650 WWUS56 KOTX 170103 SVSOTX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 603 PM PDT MON JUL 16 2012 IDC079-170111- /O.CAN.KOTX.SV.W.0027.000000T0000Z-120717T0130Z/ SHOSHONE ID- 603 PM PDT MON JUL 16 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN SHOSHONE COUNTY IS CANCELLED... LAT...LON 4704 11700 4718 11635 4688 11632 4678 11689 TIME...MOT...LOC 0101Z 141DEG 14KT 4703 11659 $$ IDC009-057-170130- /O.CON.KOTX.SV.W.0027.000000T0000Z-120717T0130Z/ BENEWAH ID-LATAH ID- 603 PM PDT MON JUL 16 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM PDT FOR NORTHERN LATAH AND SOUTHEASTERN BENEWAH COUNTIES... AT 559 PM PDT...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 6 MILES SOUTH OF EMIDA...OR 20 MILES SOUTH OF ST. MARIES... MOVING WEST AT 5 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SANTA...POTLATCH AND ONAWAY. THIS STORM WILL ALSO PRODUCE VERY HEAVY RAIN OVER STEEP TERRAIN. LAT...LON 4704 11700 4718 11635 4688 11632 4678 11689 TIME...MOT...LOC 0101Z 141DEG 14KT 4703 11659 $$ KELCH
166 WWUS56 KOTX 170133 SVSOTX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 633 PM PDT MON JUL 16 2012 IDC009-057-170142- /O.EXP.KOTX.SV.W.0027.000000T0000Z-120717T0130Z/ BENEWAH ID-LATAH ID- 633 PM PDT MON JUL 16 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN LATAH AND SOUTHEASTERN BENEWAH COUNTIES HAS EXPIRED... DOPPLER RADAR INDICATED THE STORM WAS NO LONGER SEVERE AND THE WARNING WAS ALLOWED TO EXPIRE. GUSTY WINDS TO 40 MPH...SMALL HAIL AND FREQUENT LIGHTNING WILL STILL BE POSSIBLE WITH THIS STORM. LAT...LON 4704 11700 4718 11635 4688 11632 4678 11689 TIME...MOT...LOC 0103Z 141DEG 14KT 4704 11660 $$ KELCH
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 5:09 PM PDT | Special Weather Statement | OTX | Benewah | 36 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.