Alert archive / Idaho / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 28, NWS Pocatello, ID

July 10, 20164 counties in Idaho

NWS Pocatello, ID issued this severe thunderstorm warning at Jul 10, 2016, 4:18 PM MDT for 4 counties in Idaho. It was in force for 42 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 10, 2016, 4:18 PM MDT (22:18 UTC)
Expired: Jul 10, 2016, 5:00 PM MDT
In force: 42 min
Issued by: NWS Pocatello, ID
Area: Storm-based polygon

Counties Bingham County, ID, Butte County, ID, Clark County, ID, Jefferson County, ID

The radar

The Pocatello radar (KSFX), 83 km from the middle of the area, began a volume at 22:18 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Boise Airport, ID (KBOI), launched 12:00Z, 10.3 hours before the alert went out and 301 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 12 J/kg
Mixed-layer CIN: -269 J/kg
Mixed-layer LCL: 1213 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: -58 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

515 
WUUS55 KPIH 102218
SVRPIH
IDC011-023-033-051-102300-
/O.NEW.KPIH.SV.W.0028.160710T2218Z-160710T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE POCATELLO ID
418 PM MDT SUN JUL 10 2016

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JEFFERSON COUNTY IN SOUTHEASTERN IDAHO...
  NORTHWESTERN BINGHAM COUNTY IN SOUTHEASTERN IDAHO...
  SOUTHWESTERN CLARK COUNTY IN EASTERN IDAHO...
  EAST CENTRAL BUTTE COUNTY IN CENTRAL IDAHO...

* UNTIL 500 PM MDT

* AT 416 PM MDT...SEVERE THUNDERSTORM OUTFLOW WAS REPORTED WITH
  DAMAGING WINDS IN EXCESS OF 60 MPH. THE LEADING EDGE OF THE
  OUTFLOW WAS LOCATED 7 MILES NORTHWEST OF SOUTHEAST INL...OR 18
  MILES SOUTHWEST OF MUD LAKE...AND MOVING NORTHEAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  TERRETON...MUD LAKE...HAMER...NORTHWEST INL...MONTEVIEW...
  SOUTHEAST INL...HOWE AND SAGE JUNCTION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE
HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR
PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

WIND DAMAGE WITH THIS STORM WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4382 11199 4355 11278 4377 11306 4424 11255
TIME...MOT...LOC 2216Z 223DEG 58KT 4367 11275 

$$

DMH

2 follow-up statements

682 
WWUS55 KPIH 102247
SVSPIH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
447 PM MDT SUN JUL 10 2016

IDC011-023-102255-
/O.CAN.KPIH.SV.W.0028.000000T0000Z-160710T2300Z/
BINGHAM ID-BUTTE ID-
447 PM MDT SUN JUL 10 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BINGHAM AND EAST
CENTRAL BUTTE COUNTIES IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED AND
MOVED OUT OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN
CANCELLED.

LAT...LON 4424 11255 4382 11199 4369 11237 4403 11278
TIME...MOT...LOC 2245Z 223DEG 58KT 4402 11229 

$$

IDC033-051-102300-
/O.CON.KPIH.SV.W.0028.000000T0000Z-160710T2300Z/
JEFFERSON ID-CLARK ID-
447 PM MDT SUN JUL 10 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM MDT
FOR WESTERN JEFFERSON AND SOUTHWESTERN CLARK COUNTIES...

AT 445 PM MDT...DAMAGING WINDS IN EXCESS OF 60 MPH WERE REPORTED AT
TERRETON. THE LEADING EDGE OF THE STRONG WINDS WAS LOCATED 8 MILES
NORTHWEST OF HAMER...OR 10 MILES SOUTH OF DUBOIS...MOVING NORTHEAST
AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
TERRETON...MUD LAKE...HAMER...MONTEVIEW AND SAGE JUNCTION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WIND DAMAGE WITH THIS STORM WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4424 11255 4382 11199 4369 11237 4403 11278
TIME...MOT...LOC 2245Z 223DEG 58KT 4402 11229 

$$

DMH

245 
WWUS55 KPIH 102254
SVSPIH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
454 PM MDT SUN JUL 10 2016

IDC033-051-102303-
/O.EXP.KPIH.SV.W.0028.000000T0000Z-160710T2300Z/
JEFFERSON ID-CLARK ID-
454 PM MDT SUN JUL 10 2016

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN JEFFERSON AND
SOUTHWESTERN CLARK COUNTIES WILL EXPIRE AT 500 PM MDT...
                
THE THUNDERSTORM OUTFLOW WHICH PROMPTED THE WARNING HAS WEAKENED
BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO
LIFE OR PROPERTY. THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.
HOWEVER GUSTY WINDS AROUND 50 MPH REMAIN POSSIBLE.

LAT...LON 4424 11255 4382 11199 4369 11237 4403 11278
TIME...MOT...LOC 2248Z 223DEG 58KT 4402 11229 

$$

DMH

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 Jul 10, 2:18 PM MDT, 2 hours earlier.

Area forecast discussion, Jul 10, 2:18 PM MDT, 2 hours before

Area Forecast Discussion
National Weather Service Pocatello ID
218 PM MDT SUN JUL 10 2016

.SHORT TERM...Low pressure system moving from Oregon into the Idaho
Central Mountains this afternoon, and may already be crossing into
Montana. The heavier precipitation amounts have been on the west
side of the state, but there have been a couple stations measure
precipitation around .30 inch. Any isolated thunderstorms with heavy
rain could add enough for rapid rise on small creeks or steep canyon
areas. We currently have a flash flood watch in effect for Custer
County and will be conservative in canceling it too quick. Wrap
around precipitation should take place late tonight over the central
mountains. To the south towards Rogerson, sun and heating is helping
to destabilize things, also over portions of the Arco Desert. Gusty
winds have shown up this afternoon. The strongly sheared environment
can still support select thunderstorms with some hail up to an
inch. By Monday, expected a few showers to linger near the Idaho and
Montana border. Both the GFS and ECMWF models have increased the
amplitude of the disturbance to cross the central mountains on
Tuesday, pops were raised in that area. RS

.LONG TERM...Little over all change to the extended forecast.
Wednesday through next Sunday. A weak front will depart the area
midweek. Models are hinting at another weak low pressure system
moving through northern Idaho Friday that could produce some showers
for the Central Mountains. Relatively new feature, so will keep long
term forecast dry or mostly dry for now. Temperatures will be at or
below normal. DV/RS

&&

.AVIATION...Winds have not picked up as much as expected but should
at PIH and IDA this afternoon.   Still expect 20 to 25 knot
sustained there and 15 to 20 at BYI and 10 to 15 knots at SUN
through sunset.   Winds should continue at the 20 or so knot range
Monday at IDA and PIH.   Should be VFR but showers and isolated
thunderstorms still possible through sunset at all sites.
GK

&&

.FIRE WEATHER...Showers, isolated thunderstorms and strong winds
expected this afternoon and evening.  Strongest winds in Snake Plain
and Caribou Range region with 20 to 30 sustained winds possible and
gusts 30 to 40 mph.   Humidity is very high today so no red flag
warnings in effect.   The breezy conditions will continue Monday
with most shower and thunderstorm activity in zone 411.   Humidity
will remain elevated above 20 percent in all locations.  Will see a
better chance for showers and thunderstorms Tuesday mainly in zones
475, 476, 422 and 411.
GK

&&

.PIH Watches/Warnings/Advisories...
Lake Wind Advisory until 9 PM MDT this evening for IDZ021.

Flash Flood Watch until 8 PM MDT this evening for IDZ018.

&&

In the hours before

Special weather statement, Jul 10, 12:27 PM MDT, 3 hours 51 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
1227 PM MDT SUN JUL 10 2016

IDZ023-101915-
CARIBOU HIGHLANDS ID-
1227 PM MDT SUN JUL 10 2016

...HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH AFFECTING
NORTHEASTERN CARIBOU AND SOUTHEASTERN BONNEVILLE COUNTIES UNTIL 115
PM MDT...

AT 1227 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
NEAR HENRY...MOVING NORTHEAST AT 25 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
WAYAN...SOUTHERN BLACKFOOT RESERVOIR...HENRY AND MILL CANYON
CAMPGROUND.

LAT...LON 4275 11148 4288 11159 4310 11124 4286 11108
TIME...MOT...LOC 1827Z 242DEG 24KT 4283 11148

RS

Special weather statement, Jul 10, 2:34 PM MDT, 1 hour 44 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
234 PM MDT SUN JUL 10 2016

IDZ017-022-031-102130-
BIG AND LITTLE WOOD RIVER REGION ID-SOUTH CENTRAL HIGHLANDS ID-
EASTERN MAGIC VALLEY ID-
234 PM MDT SUN JUL 10 2016

...WIND GUSTS UP TO 50 MPH FOR LINCOLN...WESTERN CASSIA...CENTRAL
BLAINE AND CENTRAL MINIDOKA COUNTIES UNTIL 330 PM MDT...

AT 229 PM MDT...DOPPLER RADAR IS TRACKING STRONG THUNDERSTORM OUT
FLOW WINDS NEAR WENDELL. THE WINDS ARE MOVING EAST TOWARDS
RICHFIELD, BURLEY, AND MINIDOKA.

WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH SOME BLOWING
DUST.

LOCATIONS IMPACTED INCLUDE...
BURLEY...RUPERT...HEYBURN...SHOSHONE...OAKLEY RESERVOIR...PAUL...
OAKLEY...RICHFIELD...DECLO...DIETRICH...SHOSHONE ICE CAVES...
LAIDLAW CORRALS AIRPORT...KIMAMA...MT HARRISON...
BOSTETTER RANGER STATION AND CITY OF ROCKS.

LAT...LON 4210 11428 4242 11429 4242 11407 4251 11407
      4254 11393 4276 11393 4277 11405 4281 11405
      4281 11435 4285 11438 4285 11459 4319 11460
      4322 11358 4207 11365
TIME...MOT...LOC 2029Z 242DEG 0KT 4269 11465

RS

Local storm report, Jul 10, 3:03 PM MDT, 1 hour 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO ID
303 PM MDT SUN JUL 10 2016

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

0235 PM     TSTM WND GST     RICHFIELD               43.05N 114.15W
07/10/2016  E66 MPH          LINCOLN            ID   MESONET

&&

RSURVICK

Special weather statement, Jul 10, 3:27 PM MDT, 51 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
327 PM MDT SUN JUL 10 2016

IDZ022>025-102230-
CARIBOU HIGHLANDS ID-CACHE VALLEY/IDAHO PORTION ID-
WASATCH MOUNTAINS/IDAHO PORTION ID-SOUTH CENTRAL HIGHLANDS ID-
327 PM MDT SUN JUL 10 2016

...HALF INCH HAIL AND WIND GUSTS UP TO 50 MPH AFFECTING SOUTHWESTERN
CARIBOU...FRANKLIN...SOUTHEASTERN BANNOCK...BEAR LAKE AND
SOUTHEASTERN ONEIDA COUNTIES UNTIL 430 PM MDT...

AT 327 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
ONEIDA NARROWS RESERVOIR...MOVING NORTHEAST AT 35 MPH.

HALF INCH HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
PRESTON...MONTPELIER...MALAD...SWANLAKE...
EASTERN BEAR LAKE IDAHO PORTION...GRACE...FRANKLIN...GEORGETOWN...
SAINT CHARLES...ONEIDA NARROWS RESERVOIR...DINGLE...
CHERRY CREEK REST AREA...THATCHER...PARIS...DAYTON...WESTON...
CLIFTON...BLOOMINGTON...OXFORD AND NITER.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4200 11239 4277 11182 4231 11105 4218 11105
      4200 11165
TIME...MOT...LOC 2127Z 216DEG 29KT 4221 11167

AD/DMH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 7:51 PM MDT	Severe Thunderstorm Warning	PIH	Bannock, Bingham, Power	39 min
Jul 9, 9:29 PM MDT	Special Weather Statement	PIH	Power	61 min
Jul 9, 10:13 PM MDT	Special Weather Statement	PIH	Bingham, Jefferson	62 min
Jul 9, 10:40 PM MDT	Severe Thunderstorm Warning	PIH	Bingham, Bonneville, Jefferson, Madison	50 min
Jul 9, 11:09 PM MDT	Severe Thunderstorm Warning	PIH	Clark, Fremont, Jefferson, Madison	36 min
Jul 9, 11:35 PM MDT	Special Weather Statement	PIH	Fremont	55 min
Jul 10, 10:55 AM MDT	Flash Flood Watch	PIH		8 hr
Jul 10, 12:27 PM MDT	Special Weather Statement	PIH	Caribou	48 min
Jul 10, 2:34 PM MDT	Special Weather Statement	PIH	Lincoln, Minidoka	56 min
Jul 10, 2:55 PM MDT	Severe Thunderstorm Warning	PIH	Blaine, Butte, Cassia, Lincoln, Minidoka	50 min
Jul 10, 3:16 PM MDT	Severe Thunderstorm Warning	PIH	Bannock, Bingham, Caribou, Power	44 min
Jul 10, 3:27 PM MDT	Special Weather Statement	PIH	Bear Lake, Franklin	63 min
Jul 10, 3:34 PM MDT	Severe Thunderstorm Warning	PIH	Bannock, Bingham, Bonneville, Caribou	41 min
Jul 10, 3:42 PM MDT	Severe Thunderstorm Warning	PIH	Bingham, Blaine, Butte, Minidoka, Power	48 min
Jul 10, 4:04 PM MDT	Severe Thunderstorm Warning	PIH	Bingham, Bonneville	41 min
Jul 10, 4:38 PM MDT	Special Weather Statement	PIH	Teton	3 hr

Nearby

Severe Thunderstorm Warnings in Idaho, 2016 Every severe thunderstorm warning in 2016

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.