Alert archive / Idaho / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 21, NWS Pocatello, ID
NWS Pocatello, ID issued this severe thunderstorm warning at May 30, 2020, 9:04 PM MDT for 6 counties in Idaho. It was in force for 41 min. 3 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
- May 30, 2020, 9:04 PM MDT (03:04 UTC)
- Expired
- May 30, 2020, 9:45 PM MDT
- In force
- 41 min
- Issued by
- NWS Pocatello, ID
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bonneville County, ID, Butte County, ID, Clark County, ID, Fremont County, ID, Jefferson County, ID, Madison County, ID
The radar
The Pocatello radar (KSFX), 131 km from the middle of the area, began a volume at 03:06 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 |
|---|---|---|---|
| May 30, 9:15 PM MDT | TSTM WND GST 58 | 1 N Roberts, ID | MESONET STATION ROB ROBERTS. |
| May 30, 9:16 PM MDT | TSTM WND DMG | Lewisville, ID | TREE UPROOTED IN LEWISVILLE. LOCATION APPROXIMATED. TIME ESTIMATED BY RADAR. RECEIVED VIA SOCIAL MEDIA. |
| May 30, 9:45 PM MDT | TSTM WND GST 83 | 1 S Dubois, ID | MESONET STATION ITDE3 D6 - CAMAS. |
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, 3.1 hours before the alert went out and 297 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
- 134 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 4066 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
603
WUUS55 KPIH 310304
SVRPIH
IDC019-023-033-043-051-065-310345-
/O.NEW.KPIH.SV.W.0021.200531T0304Z-200531T0345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Pocatello ID
904 PM MDT Sat May 30 2020
The National Weather Service in Pocatello has issued a
* Severe Thunderstorm Warning for...
Southwestern Fremont County in southeastern Idaho...
Jefferson County in southeastern Idaho...
Northeastern Butte County in southeastern Idaho...
Northwestern Bonneville County in southeastern Idaho...
Northwestern Madison County in southeastern Idaho...
Clark County in southeastern Idaho...
* Until 945 PM MDT.
* At 903 PM MDT, severe thunderstorms were located along a line
extending from 14 miles north of Northwest Inl to near Terreton to
10 miles northwest of Idaho Falls, moving north at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Dubois, Menan, Roberts, Lewisville, Hamer, Spencer, Egin,
Monteview, Plano, Small, Sage Junction, southern Saint Anthony Sand
Dunes and Edie School.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4450 11269 4449 11266 4449 11265 4436 11212
4398 11179 4343 11222 4384 11242 4404 11290
4423 11286 4423 11281 4439 11281 4442 11283
4445 11283 4448 11278 4449 11274 4450 11273
TIME...MOT...LOC 0303Z 202DEG 29KT 4406 11279 4390 11239 4355 11223
HAIL...<.75IN
WIND...60MPH
$$
DMH2 follow-up statements
175
WWUS55 KPIH 310323
SVSPIH
Severe Weather Statement
National Weather Service Pocatello ID
923 PM MDT Sat May 30 2020
IDC023-310332-
/O.CAN.KPIH.SV.W.0021.000000T0000Z-200531T0345Z/
Butte ID-
923 PM MDT Sat May 30 2020
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BUTTE COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 4450 11269 4449 11266 4449 11265 4436 11212
4398 11179 4363 11207 4363 11232 4384 11242
4406 11254 4423 11286 4423 11281 4439 11281
4442 11283 4445 11283 4448 11278 4449 11274
4450 11273
TIME...MOT...LOC 0322Z 202DEG 29KT 4419 11272 4403 11231 4368 11215
$$
IDC019-033-043-051-065-310345-
/O.CON.KPIH.SV.W.0021.000000T0000Z-200531T0345Z/
Fremont ID-Jefferson ID-Madison ID-Bonneville ID-Clark ID-
923 PM MDT Sat May 30 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM MDT
FOR SOUTHWESTERN FREMONT...CENTRAL JEFFERSON...NORTHWESTERN
MADISON...NORTHWESTERN BONNEVILLE AND CENTRAL CLARK COUNTIES...
At 922 PM MDT, severe thunderstorms were located along a line
extending from 20 miles northwest of Monteview to 9 miles northwest
of Hamer to near Roberts, moving north at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Dubois, Menan, Roberts, Lewisville, Hamer, Spencer, Plano, Egin,
southern Saint Anthony Sand Dunes, Edie School, Small and Sage
Junction.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4450 11269 4449 11266 4449 11265 4436 11212
4398 11179 4363 11207 4363 11232 4384 11242
4406 11254 4423 11286 4423 11281 4439 11281
4442 11283 4445 11283 4448 11278 4449 11274
4450 11273
TIME...MOT...LOC 0322Z 202DEG 29KT 4419 11272 4403 11231 4368 11215
HAIL...<.75IN
WIND...60MPH
$$
DMH328
WWUS55 KPIH 310341
SVSPIH
Severe Weather Statement
National Weather Service Pocatello ID
941 PM MDT Sat May 30 2020
IDC019-033-043-051-065-310351-
/O.EXP.KPIH.SV.W.0021.000000T0000Z-200531T0345Z/
Fremont ID-Jefferson ID-Madison ID-Bonneville ID-Clark ID-
941 PM MDT Sat May 30 2020
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN FREMONT...CENTRAL
JEFFERSON...NORTHWESTERN MADISON...BONNEVILLE AND CENTRAL CLARK
COUNTIES WILL EXPIRE AT 945 PM MDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with these thunderstorms.
LAT...LON 4450 11269 4449 11266 4449 11265 4436 11212
4398 11179 4363 11207 4363 11232 4384 11242
4406 11254 4423 11286 4423 11281 4439 11281
4442 11283 4445 11283 4448 11278 4449 11274
4450 11273
TIME...MOT...LOC 0341Z 202DEG 29KT 4433 11264 4417 11223 4382 11207
$$
DMHThe office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 6:14 PM MDT | Special Weather Statement | PIH | Lincoln | 46 min |
| May 30, 6:36 PM MDT | Special Weather Statement | PIH | Oneida | 39 min |
| May 30, 6:46 PM MDT | Severe Thunderstorm Warning | PIH | Cassia, Oneida, Power | 29 min |
| May 30, 7:16 PM MDT | Special Weather Statement | PIH | Bingham, Power | 44 min |
| May 30, 7:30 PM MDT | Special Weather Statement | PIH | Butte, Custer | 60 min |
| May 30, 7:36 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Power | 28 min |
| May 30, 7:38 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Power | 28 min |
| May 30, 8:11 PM MDT | Special Weather Statement | PIH | Bingham, Clark, Jefferson, Madison | 64 min |
| May 31, 11:13 AM MDT | River Flood Advisory | PIH | Blaine | 46 hr |
Nearby
Severe Thunderstorm Warnings in Idaho, 2020Every severe thunderstorm warning in 2020
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.