Alert archive / Idaho / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 22, NWS Boise, ID

July 26, 2003Washington County, Idaho; Malheur County, Oregon

NWS Boise, ID issued this severe thunderstorm warning at Jul 26, 2003, 3:35 PM MDT for Washington County, Idaho; Malheur County, Oregon. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 26, 2003, 3:35 PM MDT (21:35 UTC)
Expired
Jul 26, 2003, 4:15 PM MDT
In force
40 min
Issued by
NWS Boise, ID
Area
Counties, with a storm outline in the text

Counties Washington County, ID, Malheur County, OR

The nearest sounding before it

Boise Airport, ID (KBOI), launched 12:00Z, 9.6 hours before the alert went out and 85 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 2003-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 283 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 2003-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 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
283 J/kg
Mixed-layer CIN
-178 J/kg
Mixed-layer LCL
1448 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
4 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Boise, ID wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 26, 3:30 PM MDT, 5 minutes earlier.

Area forecast discussion, Jul 26, 3:30 PM MDT, 5 minutes before
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Hazardous weather outlook, Jul 26, 6:00 AM MDT, 9 hours 35 minutes before
IDZ011>016-028>030-ORZ061>064-271200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BOISE IDAHO
600 AM MDT SAT JUL 26 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWEST IDAHO AND SOUTHEAST
OREGON.

.DAY ONE...TODAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 1:31 PM MDTFlash Flood WarningBOIAdams, Washington89 min
Jul 26, 4:21 PM MDTSevere Thunderstorm WarningBOIWashington39 min
Jul 26, 5:03 PM MDTSevere Thunderstorm WarningBOICanyon, Owyhee, Payette, Washington42 min
Jul 26, 5:46 PM MDTSevere Thunderstorm WarningBOIAda, Canyon, Owyhee, Payette44 min

Nearby

Severe Thunderstorm Warnings in Idaho, 2003Severe Thunderstorm Warnings in Oregon, 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.