Alert archive / Idaho / Flash Flood Warnings in 1996

Flash Flood Warning 1, NWS Pocatello, ID

May 16, 1996Blaine County, Idaho

NWS Pocatello, ID issued this flash flood warning at May 16, 1996, 11:37 AM MDT for Blaine County, Idaho. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 16, 1996, 11:37 AM MDT (17:37 UTC)
Expired
May 16, 1996, 2:45 PM MDT
In force
3 hr
Issued by
NWS Pocatello, ID
Area
Whole counties

County Blaine County, ID

The radar

The Pocatello radar (KSFX), 110 km from the middle of the area, began a volume at 17:38 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 12:00Z, 5.6 hours before the alert went out and 180 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 1996-05-16Temperature 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°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 1996-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 square meters per square second.1939587897117Sfc1 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
866 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
80 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

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

NWS Pocatello, ID wrote its last area forecast discussion before this flash flood warning went out at May 16, 8:47 AM MDT, 2 hours 50 minutes earlier.

Area forecast discussion, May 16, 8:47 AM MDT, 2 hours 50 minutes before
UNSTABLE CONDITIONS OVER EASTERN IDAHO TODAY MEANS SHOWERS AND
THUNDERSTORMS THAT HAVE BEGUN TO REDEVELOP THIS MORNING WILL CONTINUE
INTO THIS AFTERNOON. STRONG SHORTWAVE IN NORTHERN NEVADA AND UPPER
DIVERGENCE IN THE LEFT EXIT REGION OF JET PROPAGATING NORTHEAST
THROUGH NEVADA AND INTO EASTERN IDAHO. THERE APPEARS TO BE A
WARMFRONTAL TYPE OF FORCING AS WELL WITH SHOWER ACTIVITY THAT PASSED
EAST AND SOUTH OF PIH/IDA OVERNIGHT AND HAS NOW BEGUN TO BUILD BACK
TO THE NORTH IN ADVANCE OF PREVIOSLY MENTIONED SHORTWAVE. WARM SECTOR
OVER UTAH WITH SALT LAKE IN THE 70S. PRESENT ZONES AND NOW COVER
THINGS WELL ENOUGH. NO MODEL DATA SO WILL LOOK AT LATER PERIODS IN
THE AFTERNOON AFD. DJB

PIH WE 065/048 065/047 067 06864
IDA WE 064/048 063/045 065 06864

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 11:55 AM MDTSevere Thunderstorm WarningPIHPower50 min
May 16, 12:06 PM MDTSevere Thunderstorm WarningPIHBingham, Blaine54 min
May 16, 12:22 PM MDTSevere Thunderstorm WarningPIHBannock38 min
May 16, 12:53 PM MDTSevere Thunderstorm WarningPIHCaribou37 min

Nearby

Flash Flood Warnings in Idaho, 1996Every flash flood warning in 1996

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.