Alert archive / Idaho / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 21, NWS Pocatello, ID

July 22, 2008Custer County, Idaho

NWS Pocatello, ID issued this severe thunderstorm warning at Jul 22, 2008, 1:10 PM MDT for Custer 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
Jul 22, 2008, 1:10 PM MDT (19:10 UTC)
Expired
Jul 22, 2008, 2:00 PM MDT
In force
50 min
Issued by
NWS Pocatello, ID
Area
Storm-based polygon

County Custer County, ID

The radar

The Boise radar (KCBX), 176 km from the middle of the area, began a volume at 19:10 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 22, 1:00 PM MDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Boise Airport, ID (KBOI), launched 12:00Z, 7.2 hours before the alert went out and 168 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-pSkew-T log-p diagram, Boise Airport, ID at 12:00Z on 2008-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 209 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Boise Airport, ID at 12:00Z on 2008-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
209 J/kg
Mixed-layer CIN
-113 J/kg
Mixed-layer LCL
1735 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS55 KPIH 221910
SVRPIH
IDC037-222000-
/O.NEW.KPIH.SV.W.0021.080722T1910Z-080722T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID
110 PM MDT TUE JUL 22 2008

THE NATIONAL WEATHER SERVICE IN POCATELLO/IDAHO FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN CUSTER COUNTY IN CENTRAL IDAHO...

* UNTIL 200 PM MDT

* AT 107 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED OVER
  WEST CENTRAL CUSTER COUNTY...OR 7 MILES NORTH OF STANLEY...AND
  MOVING NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL
  AREAS OF THE INDICATED COUNTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT
TUESDAY EVENING FOR SOUTHEASTERN IDAHO.

LAT...LON 4479 11479 4474 11481 4465 11473 4465 11462
      4462 11458 4458 11458 4457 11454 4460 11451
      4459 11448 4464 11442 4460 11431 4423 11495
      4431 11514 4476 11491 4480 11482
TIME...MOT...LOC 1910Z 219DEG 34KT 4433 11496

$$
2 follow-up statements
000 
WWUS55 KPIH 221936
SVSPIH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID
135 PM MDT TUE JUL 22 2008

IDC037-222000-
/O.CON.KPIH.SV.W.0021.000000T0000Z-080722T2000Z/
CUSTER ID-
135 PM MDT TUE JUL 22 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM MDT
FOR NORTHWESTERN CUSTER COUNTY...

AT 134 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED OVER NORTHWESTERN CUSTER COUNTY...OR 22 MILES NORTHEAST OF
STANLEY...MOVING NORTHEAST AT 39 MPH.

THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT
TUESDAY EVENING FOR SOUTHEASTERN IDAHO.

LAT...LON 4479 11479 4474 11481 4465 11473 4465 11462
      4462 11458 4458 11458 4457 11454 4460 11451
      4459 11448 4464 11442 4460 11431 4423 11495
      4431 11514 4476 11491 4480 11482
TIME...MOT...LOC 1935Z 219DEG 34KT 4451 11475

$$

DSH
000 
WWUS55 KPIH 221957
SVSPIH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID
157 PM MDT TUE JUL 22 2008

IDC037-222007-
/O.EXP.KPIH.SV.W.0021.000000T0000Z-080722T2000Z/
CUSTER ID-
157 PM MDT TUE JUL 22 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CUSTER COUNTY
WILL EXPIRE AT 200 PM MDT...

THIS STORM IS MOVING INTO LEMHI COUNTY AND THEREFORE THE WARING WILL 
BE ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT
TUESDAY EVENING FOR SOUTHEASTERN IDAHO.

LAT...LON 4479 11479 4474 11481 4465 11473 4465 11462
      4462 11458 4458 11458 4457 11454 4460 11451
      4459 11448 4464 11442 4460 11431 4423 11495
      4431 11514 4476 11491 4480 11482
TIME...MOT...LOC 1957Z 219DEG 34KT 4467 11456

$$

DSH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 2:44 AM MDTFlash Flood WatchPIH18 hr
Jul 22, 12:48 PM MDTFlash Flood WarningPIHBlaine, Custer117 min
Jul 22, 2:02 PM MDTSevere Thunderstorm WarningPIHCuster43 min
Jul 22, 2:20 PM MDTSevere Thunderstorm WarningPIHCuster25 min
Jul 22, 2:34 PM MDTFlash Flood WarningPIHBlaine, Custer116 min
Jul 22, 2:39 PM MDTSevere Thunderstorm WarningPIHLincoln, Minidoka51 min
Jul 22, 3:28 PM MDTSevere Thunderstorm WarningPIHBlaine, Minidoka32 min
Jul 22, 3:35 PM MDTSevere Thunderstorm WarningPIHBonneville, Madison, Teton33 min
Jul 22, 4:00 PM MDTSevere Thunderstorm WarningPIHBlaine, Minidoka, Power45 min
Jul 22, 4:12 PM MDTSevere Thunderstorm WarningPIHBingham, Bonneville, Madison, Teton48 min
Jul 22, 4:26 PM MDTSevere Thunderstorm WarningPIHTeton19 min
Jul 22, 4:45 PM MDTSevere Thunderstorm WarningPIHBannock, Bingham, Power45 min
Jul 22, 4:58 PM MDTSevere Thunderstorm WarningPIHBonneville, Teton32 min
Jul 22, 5:31 PM MDTSevere Thunderstorm WarningPIHBingham29 min

Nearby

Severe Thunderstorm Warnings in Idaho, 2008Every severe thunderstorm warning in 2008

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.