Alert archive / Idaho / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 41, NWS Spokane, WA
NWS Spokane, WA issued this severe thunderstorm warning at Jul 20, 2012, 2:41 PM PDT for Kootenai County, Shoshone County, Idaho. It was in force for 49 min. 4 reports 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 20, 2012, 2:41 PM PDT (21:41 UTC)
- Expired
- Jul 20, 2012, 3:30 PM PDT
- In force
- 49 min
- Issued by
- NWS Spokane, WA
- Area
- Storm-based polygon
Counties Kootenai County, ID, Shoshone County, ID
The radar
The Spokane radar (KOTX), 124 km from the middle of the area, began a volume at 21:42 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 20, 3:11 PM PDT | TSTM WND DMG | 3 E Kellogg, ID | UTILITY LINES DOWN. |
| Jul 20, 3:15 PM PDT | TSTM WND DMG | Prichard, ID | PRICHARD TAVERN REPORTED SMALL UTILITY TRAILER BLOWN ABOUT 150 FEET. MANY TREE LIMBS DOWN. PEA SIZE HAIL REPORTED. |
| Jul 20, 3:16 PM PDT | TSTM WND DMG | 1 Ssw Prichard, ID | TREE ON POWER LINE AT COEUR D ALENE RIVER ROAD MILE POST 27. |
| Jul 20, 3:21 PM PDT | TSTM WND DMG | Cataldo, ID | TREE DOWN ON POWER LINE ON SCHOOL HOUSE LOOP ROAD |
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 |
|---|---|---|---|
| Jul 20, 11:38 AM PDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 9.7 hours before the alert went out and 35 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
- 2619 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
464
WUUS56 KOTX 202141
SVROTX
IDC055-079-202230-
/O.NEW.KOTX.SV.W.0041.120720T2141Z-120720T2230Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
241 PM PDT FRI JUL 20 2012
THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EAST CENTRAL KOOTENAI COUNTY IN THE PANHANDLE OF IDAHO...
CENTRAL SHOSHONE COUNTY IN THE PANHANDLE OF IDAHO...
THIS INCLUDES THE CITIES OF...WALLACE...KELLOGG...
* UNTIL 330 PM PDT
* AT 233 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES
NORTHWEST OF HUCKLEBERRY CAMPGROUND...OR 15 MILES SOUTH OF
KELLOGG...AND MOVING NORTHEAST AT 45 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CATALDO...KINGSTON...PINEHURST...WARDNER...SMELTERVILLE...
KELLOGG...WALLACE...OSBURN...PRICHARD...MURRAY AND MAGEE RANGER
STATION
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HAIL OF AT LEAST GOLF BALL SIZE WAS REPORTED EARLIER IN JULIETTA
WITH QUARTER SIZE HAIL REPORTED IN KENDRICK WITH THIS STORM. IF YOU
ARE IN THE PATH OF THE STORM...TAKE IMMEDIATE ACTION TO PROTECT LIFE
AND PROPERTY.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM PDT FRIDAY
EVENING FOR THE PANHANDLE AND NORTH CENTRAL IDAHO AND EASTERN
WASHINGTON.
&&
LAT...LON 4756 11573 4753 11572 4725 11610 4737 11633
4742 11634 4742 11641 4744 11645 4787 11632
4778 11583 4770 11572 4765 11572 4763 11569
4759 11569
TIME...MOT...LOC 2141Z 205DEG 38KT 4740 11612
$$
JW2 follow-up statements
259
WWUS56 KOTX 202204
SVSOTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
304 PM PDT FRI JUL 20 2012
IDC055-079-202230-
/O.CON.KOTX.SV.W.0041.000000T0000Z-120720T2230Z/
SHOSHONE ID-KOOTENAI ID-
304 PM PDT FRI JUL 20 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM PDT
FOR EAST CENTRAL KOOTENAI AND NORTH CENTRAL SHOSHONE COUNTIES...
AT 255 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR OSBURN...OR NEAR KELLOGG...MOVING NORTHEAST AT 45 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
PRICHARD...MURRAY AND MAGEE RANGER STATION.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY DEVELOP. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM PDT FRIDAY
EVENING FOR THE PANHANDLE AND NORTH CENTRAL IDAHO AND EASTERN
WASHINGTON.
&&
LAT...LON 4756 11573 4753 11572 4748 11598 4746 11640
4787 11632 4778 11583 4770 11572 4765 11572
4763 11569 4759 11569
TIME...MOT...LOC 2202Z 205DEG 38KT 4760 11598
$$
JW136
WWUS56 KOTX 202228
SVSOTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
328 PM PDT FRI JUL 20 2012
IDC055-079-202237-
/O.EXP.KOTX.SV.W.0041.000000T0000Z-120720T2230Z/
SHOSHONE ID-KOOTENAI ID-
328 PM PDT FRI JUL 20 2012
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL KOOTENAI AND
NORTH CENTRAL SHOSHONE COUNTIES WILL EXPIRE AT 330 PM PDT...
THIS STORM HAD WEAKENED NORTH OF OMAK BUT DID PRODUCE QUARTER SIZE HAIL
AND VERY HEAVY RAIN.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM PDT FRIDAY
EVENING FOR THE PANHANDLE AND NORTH CENTRAL IDAHO AND EASTERN
WASHINGTON.
LAT...LON 4756 11573 4753 11572 4748 11598 4746 11640
4787 11632 4778 11583 4770 11572 4765 11572
4763 11569 4759 11569
TIME...MOT...LOC 2227Z 205DEG 38KT 4784 11581
$$
RFOX.RFOXThe office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 7:09 PM PDT | Special Weather Statement | OTX | Nez Perce | 51 min |
| Jul 20, 12:39 PM PDT | Severe Thunderstorm Warning | OTX | Latah, Nez Perce | 51 min |
| Jul 20, 12:57 PM PDT | Severe Thunderstorm Warning | OTX | Latah, Nez Perce | 48 min |
| Jul 20, 1:04 PM PDT | Areal Flood Advisory | OTX | Nez Perce | 4 hr |
| Jul 20, 1:18 PM PDT | Severe Thunderstorm Warning | OTX | Benewah, Latah, Nez Perce, Shoshone | 42 min |
| Jul 20, 2:00 PM PDT | Severe Thunderstorm Warning | OTX | Benewah, Latah, Shoshone | 45 min |
| Jul 20, 2:07 PM PDT | Severe Thunderstorm Warning | OTX | Latah, Nez Perce | 38 min |
| Jul 20, 2:21 PM PDT | Severe Thunderstorm Warning | OTX | Bonner, Kootenai | 39 min |
| Jul 20, 2:58 PM PDT | Severe Thunderstorm Warning | OTX | Shoshone | 47 min |
| Jul 20, 3:17 PM PDT | Severe Thunderstorm Warning | OTX | Kootenai | 43 min |
| Jul 20, 3:18 PM PDT | Areal Flood Advisory | OTX | Latah | 117 min |
| Jul 20, 3:20 PM PDT | Severe Thunderstorm Warning | OTX | Benewah, Kootenai, Latah | 40 min |
| Jul 20, 3:35 PM PDT | Areal Flood Warning | OTX | Bonner, Boundary, Kootenai, Shoshone | 4 hr |
| Jul 20, 3:37 PM PDT | Severe Thunderstorm Warning | OTX | Bonner, Boundary | 53 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.