Alert archive / Idaho / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 13, NWS Pocatello, ID

June 12, 2017Clark County, Jefferson County, Idaho

NWS Pocatello, ID issued this severe thunderstorm warning at Jun 12, 2017, 10:55 AM MDT for Clark County, Jefferson County, Idaho. It was in force for 50 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: Jun 12, 2017, 10:55 AM MDT (16:55 UTC)
Expired: Jun 12, 2017, 11:45 AM MDT
In force: 50 min
Issued by: NWS Pocatello, ID
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Clark County, ID, Jefferson County, ID

The radar

The Pocatello radar (KSFX), 143 km from the middle of the area, began a volume at 16:55 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

Boise Airport, ID (KBOI), launched 12:00Z, 4.9 hours before the alert went out and 308 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 735 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 125 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

640 
WUUS55 KPIH 121655
SVRPIH
IDC033-051-121745-
/O.NEW.KPIH.SV.W.0013.170612T1655Z-170612T1745Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Pocatello ID
1055 AM MDT MON JUN 12 2017

The National Weather Service in Pocatello has issued a

* Severe Thunderstorm Warning for...
  Northwestern Jefferson County in southeastern Idaho...
  Western Clark County in southeastern Idaho...

* Until 1145 AM MDT

* At 1055 AM MDT, a severe thunderstorm was located 10 miles north of
  Monteview, or 15 miles west of Dubois, moving north at 35 mph.

  HAZARD...60 mph wind gusts and half dollar size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Small, Edie School and Bannack Pass. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4397 11229 4397 11262 4445 11282 4448 11279
      4449 11268 4448 11263 4449 11260 4448 11258
      4448 11254 4446 11250 4448 11247 4446 11243
      4446 11241 4445 11239 4447 11237 4454 11235
TIME...MOT...LOC 1655Z 165DEG 28KT 4409 11252 

HAIL...1.25IN
WIND...60MPH
 
$$

JKEYES

2 follow-up statements

388 
WWUS55 KPIH 121712
SVSPIH

Severe Weather Statement
National Weather Service Pocatello ID
1112 AM MDT MON JUN 12 2017

IDC051-121721-
/O.CAN.KPIH.SV.W.0013.000000T0000Z-170612T1745Z/
Jefferson ID-
1112 AM MDT MON JUN 12 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN JEFFERSON COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4411 11234 4411 11268 4445 11282 4448 11279
      4449 11268 4448 11263 4449 11260 4448 11258
      4448 11254 4446 11250 4448 11247 4446 11243
      4446 11241 4445 11239 4447 11237 4454 11235
TIME...MOT...LOC 1711Z 165DEG 28KT 4421 11257 

$$

IDC033-121745-
/O.CON.KPIH.SV.W.0013.000000T0000Z-170612T1745Z/
Clark ID-
1112 AM MDT MON JUN 12 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 AM MDT
FOR NORTHWESTERN CLARK COUNTY...

At 1111 AM MDT, a severe thunderstorm was located 16 miles west of
Dubois, moving north at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Small, Edie School and Bannack Pass. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4411 11234 4411 11268 4445 11282 4448 11279
      4449 11268 4448 11263 4449 11260 4448 11258
      4448 11254 4446 11250 4448 11247 4446 11243
      4446 11241 4445 11239 4447 11237 4454 11235
TIME...MOT...LOC 1711Z 165DEG 28KT 4421 11257 

HAIL...1.00IN
WIND...60MPH
 
$$

JKEYES

276 
WWUS55 KPIH 121737
SVSPIH

Severe Weather Statement
National Weather Service Pocatello ID
1137 AM MDT MON JUN 12 2017

IDC033-121746-
/O.EXP.KPIH.SV.W.0013.000000T0000Z-170612T1745Z/
Clark ID-
1137 AM MDT MON JUN 12 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CLARK COUNTY WILL
EXPIRE AT 1145 AM MDT...
        
The storm which prompted the warning is moving into southern Montana.
Therefore the warning will be allowed to expire. The risk of strong 
to severe storms continues through the day with the potential for 
hail, gusty winds and locally heavy rain. 

LAT...LON 4411 11234 4411 11268 4445 11282 4448 11279
      4449 11268 4448 11263 4449 11260 4448 11258
      4448 11254 4446 11250 4448 11247 4446 11243
      4446 11241 4445 11239 4447 11237 4454 11235
TIME...MOT...LOC 1736Z 165DEG 28KT 4437 11263 

$$

JKEYES

The office that day

Everything else NWS Pocatello, ID issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 11, 6:20 PM MDT	Special Weather Statement	PIH	Bingham	40 min
Jun 11, 6:29 PM MDT	Special Weather Statement	PIH	Blaine	46 min
Jun 11, 7:13 PM MDT	Special Weather Statement	PIH	Blaine	47 min
Jun 11, 7:15 PM MDT	Special Weather Statement	PIH	Bingham	45 min
Jun 11, 8:02 PM MDT	Severe Thunderstorm Warning	PIH	Blaine	22 min
Jun 11, 8:11 PM MDT	Special Weather Statement	PIH	Jefferson	49 min
Jun 11, 8:22 PM MDT	Special Weather Statement	PIH	Custer	38 min
Jun 11, 8:26 PM MDT	Severe Thunderstorm Warning	PIH	Blaine, Custer	34 min
Jun 11, 8:34 PM MDT	Severe Thunderstorm Warning	PIH	Clark, Fremont, Jefferson, Madison	41 min
Jun 11, 8:52 PM MDT	Tornado Warning	PIH	Clark, Fremont, Jefferson, Madison	23 min
Jun 11, 9:17 PM MDT	Tornado Warning	PIH	Clark, Fremont	28 min
Jun 12, 10:04 AM MDT	Special Weather Statement	PIH	Clark	26 min
Jun 12, 10:23 AM MDT	Severe Thunderstorm Warning	PIH	Butte, Clark, Jefferson	33 min
Jun 12, 10:40 AM MDT	Severe Thunderstorm Warning	PIH	Bingham, Bonneville, Jefferson	39 min
Jun 12, 12:18 PM MDT	Special Weather Statement	PIH	Bonneville, Clark, Fremont, Madison	42 min
Jun 12, 12:31 PM MDT	Severe Thunderstorm Warning	PIH	Clark	31 min
Jun 12, 1:10 PM MDT	Special Weather Statement	PIH	Fremont, Teton	50 min
Jun 12, 1:37 PM MDT	Wind Advisory	PIH		29 hr
Jun 12, 2:19 PM MDT	Special Weather Statement	PIH	Fremont, Teton	56 min
Jun 12, 2:32 PM MDT	Special Weather Statement	PIH	Butte, Clark, Jefferson, Madison	58 min
Jun 12, 5:38 PM MDT	River Flood Warning	PIH	Bonneville, Jefferson, Madison	4 days

Nearby

Severe Thunderstorm Warnings in Idaho, 2017 Every severe thunderstorm warning in 2017

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.