Alert archive / Idaho / Tornado Warnings in 1995

Tornado Warning 1, NWS Boise, ID

May 11, 1995Ada County, Elmore County, Idaho

NWS Boise, ID issued this tornado warning at May 11, 1995, 8:44 PM MDT for Ada County, Elmore County, Idaho. It was in force for 20 min.

The area

The counties it named.

The facts

Issued
May 11, 1995, 8:44 PM MDT (02:44 UTC)
Expired
May 11, 1995, 9:04 PM MDT
In force
20 min
Issued by
NWS Boise, ID
Area
Whole counties

Counties Ada County, ID, Elmore County, ID

The radar

The Boise radar (KCBX), 32 km from the middle of the area, began a volume at 02:45 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

Boise Airport, ID (KBOI), launched 00:00Z, 2.7 hours before the alert went out and 33 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 00:00Z on 1995-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 24 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 00:00Z on 1995-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -33 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
24 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
1568 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
-33 m²/s²
0-3 km storm-relative helicity
33 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 
TTAA00 KBOI 120245
TORBOI
IDC001-039-120315-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BOISE ID
844 PM MDT THU MAY 11 1995
 
THE NATIONAL WEATHER SERVICE IN BOISE ID HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  915 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST IDAHO
 
   ...EASTERN ADA COUNTY
   ...WESTERN ELMORE COUNTY
 
A FUNNEL CLOUD WAS SIGHTED ABOVE INTERSTATE 84 AT THE BLACKS CREEK EXIT
ABOUT EIGHT MILES SOUTHEAST OF BOISE.
 
THE ASSOCIATED THUNDERSTORM WAS MOVING SOUTHEAST ABOUT 20 MPH GENERALLY
ALONG THE INTERSTATE.
 
IF YOU ARE IN A CAR IN THE PATH OF A TORNADO...LEAVE THE CAR AND SEEK
SHELTER IN A STRONG BUILDING. IF NO BUILDING IS NEARBY TAKE SHELTER IN
A DITCH OR LOW SPOT.
 
 
 
&

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 7:35 PM MDTSevere Thunderstorm WarningBOICanyon25 min
May 11, 8:00 PM MDTSevere Thunderstorm WarningBOIAda, Canyon30 min

Nearby

Tornado Warnings in Idaho, 1995Every tornado warning in 1995Tornadoes in 1995

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.