Alert archive / Idaho / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 13, NWS Spokane, WA

July 17, 2007Shoshone County, Idaho

NWS Spokane, WA issued this severe thunderstorm warning at Jul 17, 2007, 7:13 PM PDT for Shoshone County, Idaho. It was in force for 35 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 17, 2007, 7:13 PM PDT (02:13 UTC)
Expired
Jul 17, 2007, 7:48 PM PDT
In force
35 min
Issued by
NWS Spokane, WA
Area
Counties, with a storm outline in the text

County Shoshone County, ID

The radar

The Spokane radar (KOTX), 119 km from the middle of the area, began a volume at 02:15 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

Spokane, WA (KOTX), launched 00:00Z, 2.2 hours before the alert went out and 30 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, Spokane, WA at 00:00Z on 2007-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 00:00Z on 2007-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -40 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2858 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
-40 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS56 KOTX 180213
SVROTX
IDC079-180300-
/O.NEW.KOTX.SV.W.0013.070718T0213Z-070718T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
713 PM PDT TUE JUL 17 2007

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL SHOSHONE COUNTY IN THE PANHANDLE OF IDAHO...
    THIS INCLUDES THE CITIES OF...WALLACE...OSBURN...KELLOGG...

* UNTIL 800 PM PDT

* AT 707 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL.  THIS
  STORM WAS LOCATED NEAR OSBURN...AND MOVING NORTH AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   OSBURN BY 715 PM PDT...
   PRICHARD BY 745 PM PDT...

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.

LAT...LON 4741 11615 4742 11580 4785 11589 4787 11620

$$

FX
2 follow-up statements
000 
WWUS56 KOTX 180234
SVSOTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
734 PM PDT TUE JUL 17 2007

IDC079-180300-
/O.CON.KOTX.SV.W.0013.000000T0000Z-070718T0300Z/
SHOSHONE ID-
734 PM PDT TUE JUL 17 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM PDT
FOR NORTH CENTRAL SHOSHONE COUNTY...

AT 728 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL. 
THIS STORM WAS LOCATED NEAR OSBURN...MOVING NORTH AT 20 MPH. 

THE SEVERE THUNDERSTORM WILL BE NEAR...
  PRICHARD AND MURRAY BY 740 PM PDT...

LAT...LON 4741 11615 4742 11580 4785 11589 4787 11620

$$

FX
000 
WWUS56 KOTX 180248
SVSOTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
747 PM PDT TUE JUL 17 2007

IDC079-180257-
/O.CAN.KOTX.SV.W.0013.000000T0000Z-070718T0300Z/
SHOSHONE ID-
747 PM PDT TUE JUL 17 2007

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL SHOSHONE COUNTY
IS CANCELLED...

AS THE STORM TRACKED INTO THE MURRAY AREA...IT WEAKENED BELOW SEVERE 
LEVELS. 

LAT...LON 4741 11615 4742 11580 4785 11589 4787 11620

$$

FX

The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 17, 5:14 PM PDTSevere Thunderstorm WarningOTXShoshone46 min
Jul 17, 6:05 PM PDTSevere Thunderstorm WarningOTXBonner50 min

Nearby

Severe Thunderstorm Warnings in Idaho, 2007Every severe thunderstorm warning in 2007

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.