Alert archive / Idaho / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 16, NWS Pocatello, ID

June 6, 20194 counties in Idaho

NWS Pocatello, ID issued this severe thunderstorm warning at Jun 6, 2019, 7:53 PM MDT for 4 counties in Idaho. It was in force for 37 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
Jun 6, 2019, 7:53 PM MDT (01:53 UTC)
Expired
Jun 6, 2019, 8:30 PM MDT
In force
37 min
Issued by
NWS Pocatello, ID
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Bannock County, ID, Bingham County, ID, Bonneville County, ID, Jefferson County, ID

The radar

The Pocatello radar (KSFX), 48 km from the middle of the area, began a volume at 01:53 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 6, 1:54 PM MDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 00:00Z, 1.9 hours before the alert went out and 278 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, Salt Lake City I, UT at 00:00Z on 2019-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 98 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, Salt Lake City I, UT at 00:00Z on 2019-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
98 J/kg
Mixed-layer CIN
-151 J/kg
Mixed-layer LCL
2717 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
66 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 Pocatello, ID wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 6, 2:28 PM MDT, 5 hours 25 minutes earlier.

Area forecast discussion, Jun 6, 2:28 PM MDT, 5 hours 25 minutes before
Area Forecast Discussion
National Weather Service Pocatello ID
228 PM MDT Thu Jun 6 2019

.SHORT TERM...Tonight through Sun. SPC has put much of the
forecast area under a Severe Thunderstorm Watch (number 337) until
11 pm tonight. Very warm and unstable air will clash with some of
the coldest air the region has ever seen during the month of June.
This is not only powering the thunderstorms, but there should be
plenty of wind associated with the cold front. This will last
through Friday, although there should be a brief lull in the
coldest part of the morning, from sunrise to mid-morning. Then
very windy conditions should return. Local study keeps the
criteria in the Wind Advisory range. There is also a risk of
blowing dust after a couple of dry days in the Snake River plain.
Showers and thunderstorms will continue on Fri, although not to
the magnitude of tonight. On Saturday, as the cold front continues
its eastward track, showers will be more limited to the eastern
and northern highlands. The cold air will have settled in, with
high temperatures only reaching the 50s for places in the eastern
Magic Valley and Snake River plain. This of course means
accumulating snow in the higher elevations, but the precipitation
is not heavy for the locations expected to snow, so a storm total up
to 3 inches is about the limit for Fri night to Sat morning.
Conditions start to clear Sat night after midnight, and record to
near-record cold for this time of year is likely. Frost is nearly
likely for Sun morning. Messick

.LONG TERM...Sunday night through next Thursday. Ridging aloft will
prevail over the region through about mid-week, bringing mostly
clear skies and warmer temperatures. Starting Wednesday, a cutoff
low will begin to fill and lift through California ahead of a
shortwave trough around 140W. GFS is indicating showers Wednesday
night across southeast Idaho, while the ECMWF is dry. Both models
ramp up convection Thursday afternoon as the trough swings through
the region. Hinsberger

&&

.AVIATION...Main concern will be for severe thunderstorms late this
afternoon and evening while a cold front pushes through around 03Z
to 06Z. VFR conditions should prevail, but a passing shower could
briefly drop visibility below VFR. In the post-frontal airmass,
there will be a greater potential for MVFR ceilings beginning around
sunrise tomorrow, particularly at KSUN and KDIJ and maybe KIDA. MOS
guidance is bringing the strongest winds late tonight as pressure
gradient remains tight over the region behind the cold front.
Hinsberger

&&

.HYDROLOGY...Wood River in Hailey and the Lost River at Howell
Ranch (near Chilly Barton Flat) continue to be in or near minor
flood stage, and so the Warning and Advisory continue. All points
along the Wood, Little Wood, and both Big and Little Lost Rivers
will continue with rising stages due to snow melt until Fri night.
At that point, much colder air, bordering record cold for the
month of June, will severely slow melting and give the rivers a
chance at partial recovery to below even action stage. Snow melt
is not done, however, and expect the sunny skies next week to
bring back higher stages. Messick

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
Wind Advisory from 9 PM this evening to 10 PM MDT Friday for
IDZ052-053.

Wind Advisory from 11 AM to 10 PM MDT Friday for IDZ056>058-
062>065.

Wind Advisory from 3 AM to 10 PM MDT Friday for IDZ051-054-055.

&&

In the hours before

Local storm report, Jun 6, 6:40 PM MDT, 1 hour 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO ID
640 PM MDT THU JUN 6 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0630 PM     TSTM WND GST     BERN                    42.33N 111.38W
06/06/2019  M64 MPH          BEAR LAKE          ID   TRAINED SPOTTER

&&

GKAISER
Local storm report, Jun 6, 6:46 PM MDT, 1 hour 7 minutes before
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Special weather statement, Jun 6, 7:12 PM MDT, 41 minutes before
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Local storm report, Jun 6, 7:24 PM MDT, 29 minutes before
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Local storm report, Jun 6, 7:43 PM MDT, 10 minutes before
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Local storm report, Jun 6, 7:52 PM MDT, 1 minute before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 6:07 PM MDTSpecial Weather StatementPIHBear Lake38 min
Jun 6, 6:19 PM MDTSpecial Weather StatementPIHBonneville26 min
Jun 6, 6:31 PM MDTSpecial Weather StatementPIHOneida, Power44 min
Jun 6, 6:42 PM MDTSevere Thunderstorm WarningPIHBear Lake, Caribou33 min
Jun 6, 6:45 PM MDTSevere Thunderstorm WarningPIHBannock, Bingham, Blaine, Cassia, Power45 min
Jun 6, 7:12 PM MDTSpecial Weather StatementPIHJefferson33 min
Jun 6, 7:22 PM MDTSevere Thunderstorm WarningPIHBannock, Bingham, Blaine, Bonneville, Caribou, Power38 min
Jun 6, 7:58 PM MDTSpecial Weather StatementPIHFremont32 min
Jun 6, 8:26 PM MDTSevere Thunderstorm WarningPIHBingham, Bonneville, Clark, Fremont, Jefferson, Madison and 1 more49 min
Jun 6, 9:16 PM MDTSpecial Weather StatementPIHFremont44 min
Jun 6, 9:55 PM MDTSpecial Weather StatementPIHCassia50 min
Jun 6, 9:59 PM MDTSpecial Weather StatementPIHFremont46 min
Jun 6, 10:15 PM MDTSpecial Weather StatementPIHMinidoka45 min
Jun 6, 10:35 PM MDTSpecial Weather StatementPIHOneida40 min
Jun 6, 11:28 PM MDTSpecial Weather StatementPIHBingham, Madison62 min
Jun 6, 11:33 PM MDTSpecial Weather StatementPIHBannock, Caribou87 min
Jun 7, 12:06 PM MDTLake Wind AdvisoryPIHBannock, Bingham, Power6 hr

Nearby

Severe Thunderstorm Warnings in Idaho, 2019Every severe thunderstorm warning in 2019

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.