Alert archive / Idaho / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 21, NWS Boise, ID

July 25, 2003Canyon County, Owyhee County, Idaho

NWS Boise, ID issued this severe thunderstorm warning at Jul 25, 2003, 4:31 PM MDT for Canyon County, Owyhee County, Idaho. It was in force for 44 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 25, 2003, 4:31 PM MDT (22:31 UTC)
Expired
Jul 25, 2003, 5:15 PM MDT
In force
44 min
Issued by
NWS Boise, ID
Area
Counties, with a storm outline in the text

Counties Canyon County, ID, Owyhee County, ID

The nearest sounding before it

Boise Airport, ID (KBOI), launched 12:00Z, 10.5 hours before the alert went out and 57 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 2003-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 2003-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 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
1 J/kg
Mixed-layer CIN
-221 J/kg
Mixed-layer LCL
1274 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
50 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.

746 
WUUS55 KBOI 252231
SVRBOI
IDC027-073-252315-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BOISE ID
430 PM MDT FRI JUL 25 2003

THE NATIONAL WEATHER SERVICE IN BOISE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CANYON COUNTY IN SOUTHWEST IDAHO
  EXTREME NORTHWESTERN OWYHEE COUNTY IN SOUTHWEST IDAHO

* UNTIL 515 PM MDT

* AT 426 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES SOUTHWEST OF HOMEDALE...OR ABOUT 16
  MILES SOUTH OF PARMA...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  OVER HOMEDALE...7 MILES NORTHWEST OF MARSING AT 440 PM MDT   
  OVER MARSING AT 440 PM MDT
  3 MILES SOUTHEAST OF WILDER AT 450 PM MDT
  OVER GREENLEAF AT 455 PM MDT
  OVER NOTUS AT 505 PM MDT
  7 MILES NORTHWEST OF CALDWELL AT 510 PM MDT

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN BOISE.

LAT...LON 4346 11699 4349 11702 4364 11702 4377 11678
          4367 11661 4346 11695

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 3:08 PM MDTFlash Flood WarningBOIOwyhee67 min
Jul 25, 3:21 PM MDTSevere Thunderstorm WarningBOIAda, Owyhee54 min

Nearby

Severe Thunderstorm Warnings in Idaho, 2003Every severe thunderstorm warning in 2003

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.