Severe Thunderstorm Warning 63, NWS Pocatello, ID

573 
WWUS55 KPIH 222220
SVSPIH

Severe Weather Statement
National Weather Service Pocatello ID
420 PM MDT WED AUG 22 2018

IDC011-019-222245-
/O.CON.KPIH.SV.W.0063.000000T0000Z-180822T2245Z/
Bonneville ID-Bingham ID-
420 PM MDT WED AUG 22 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM MDT
FOR CENTRAL BONNEVILLE AND CENTRAL BINGHAM COUNTIES...

At 418 PM MDT, a severe thunderstorm was located near Moreland or 7 
miles northwest of Blackfoot, moving east-northeast at 25 mph. 
Another potentially severe storm is located just southeast of Tabor. 

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Goshen, Shelley, Firth, Rose, Moreland, Groveland, Basalt and
Wapello.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4322 11259 4331 11259 4345 11210 4322 11205
TIME...MOT...LOC 2218Z 252DEG 21KT 4328 11243 

HAIL...1.00IN
WIND...60MPH
 
$$

JKEYES

957 
WWUS55 KPIH 222242
SVSPIH

Severe Weather Statement
National Weather Service Pocatello ID
442 PM MDT WED AUG 22 2018

IDC011-019-222251-
/O.EXP.KPIH.SV.W.0063.000000T0000Z-180822T2245Z/
Bonneville ID-Bingham ID-
442 PM MDT WED AUG 22 2018

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BONNEVILLE AND CENTRAL
BINGHAM COUNTIES WILL EXPIRE AT 445 PM MDT...
    
This warning has been replaced with a new warning for portions of 
Bonneville and Bingham Counties.  

A severe thunderstorm watch remains in effect until 900 PM MDT for
southeastern Idaho.


LAT...LON 4322 11259 4331 11259 4345 11210 4322 11205
TIME...MOT...LOC 2241Z 252DEG 21KT 4332 11226 

$$

JKEYES

Area Forecast Discussion
National Weather Service Pocatello ID
120 PM MDT Wed Aug 22 2018

.DISCUSSION...Main concern tonight will be the continuation of
convection south and east of Interstate 15 and 84. A SEVERE
THUNDERSTORM WATCH is in effect for our southeastern zones until 9
PM this evening. An upper low will slowly move from central Idaho
into western Montana tonight while a shortwave pivots around into
southeast Idaho. The area ahead of the shortwave will be a prime
area for convective initiation. Models show that shortwave and
upper low moving east after midnight. Fair weather is expected
tomorrow with transient ridging pushing through Idaho. Friday may
be breezy as the next upper trough makes its way into the area.
GFS and NAM both keep things dry, while the ECMWF hints at some
light precip Friday afternoon and evening. Both models continue to
show an amplification of upper troughing over the PAC NW this
weekend and into early next week. Have opted to continue with a
GFS/EC ensemble blend for PoPs Sunday through Wednesday. Guidance
is bringing in 70 degree highs to the Snake Plain for Monday and
Tuesday next week. Hinsberger

&&

.AVIATION...More showers and thunderstorms are likely through this
evening. Right now, the most affected TAF sites should be KPIH, KIDA
and KDIJ. We do have -SHRA or -TSRA on station at these airports.
We have VCTS for KSUN and KBYI since the chance is lower for on
station development. We could easily see winds around 40-50kts with
storms, if not higher as well as some hail.  Expect reduced ceilings
and visibility due to heavier rainfall. We should be all clear after
midnight and Thursday. Keyes

 &&

.FIRE WEATHER...We've already seen showers and thunderstorms today,
with more expected into this evening. Wetting rain are possible
especially with stronger storms. We've seen amounts already well
over 0.20 inches in several instances this morning. Wind gusts over
40 mph are still likely with most storms, with gusts of 60 mph or
higher across portions of Zones 410, 411 and 413. Hail may also be a
factor for field crews to contend with off and on. The RED FLAG
WARNINGS for 476 and 413 remain in effect, and hopefully we don't
have to do last minute expansions or extensions based on how things
play in the next few hours. We dry out overall tomorrow through
Sunday morning. There will be some pockets of poor overnight
recovery across portions of the central mountains and southern
highlands, but nothing like we saw under the persistent ridge in
recent weeks. The main concern will be gusty winds and low afternoon
humidity. We are seeing a couple of lows skirt by to the north
Friday and Saturday. There MIGHT be a storm or two along the Montana
border Friday, but that is a VERY LOW chance. Otherwise, Friday is
likely bringing gusts of 25-40mph winds over most of central and
eastern Idaho. With RHs dropping down again, we will likely see
critical or borderline critical over most of it not all fire zones
in the afternoon and evening hours. There is some wiggle room in
terms of speeds and humidity numbers, but even if winds come down
some or RH ends up a bit higher there will be smaller pockets of
critical conditions developing. Saturday will see strong gusts over
the central mountains and Upper Snake Plain/Highlands
(410/411/475/476) so those areas could see another round of critical
fire conditions play out. Early next week still looks much, much
cooler and showery. Highs for lower elevations look to only be in
the mid 60s to mid 70s, with 40s and 50s in the mountains. Keyes

&&

.AIR STAGNATION...Area wildfires continue to make for poor air
quality, though Pocatello/Chubbuck has noted slight improvements
over yesterday. The Burley and Shoshone areas, as well as Idaho Falls,
Rexburg, and Island Park have noted diminishing air quality, and
advisories have been put in place for those areas today. The advisory
for the Pocatello/Chubbuck area has also been extended through
tomorrow. Hinsberger

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
Red Flag Warning until 9 PM MDT this evening for IDZ413-476.

&&

Special Weather Statement
National Weather Service Pocatello ID
217 PM MDT WED AUG 22 2018

IDZ052-067>069-222100-
Arco/Mud Lake Desert ID-Beaverhead/Lemhi Highlands ID-
Lost River Range ID-Lost River Valleys ID-
217 PM MDT WED AUG 22 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN JEFFERSON...
NORTHEASTERN BUTTE AND WESTERN CLARK COUNTIES UNTIL 300 PM MDT...

At 216 PM MDT, Doppler radar was tracking a strong thunderstorm 19
miles northwest of Northwest Inl or 27 miles east of Mackay, moving
northeast at 35 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Lone Pine, Edie School and Small.

LAT...LON 4448 11265 4411 11218 4387 11315 4405 11328
      4424 11301 4423 11282 4437 11281
TIME...MOT...LOC 2016Z 241DEG 32KT 4401 11307

Hinsberger

Special Weather Statement
National Weather Service Pocatello ID
238 PM MDT WED AUG 22 2018

IDZ054>059-222130-
Eastern Magic Valley ID-Franklin/Eastern Oneida Region ID-
Marsh and Arbon Highlands ID-Raft River Region ID-
Southern Hills/Albion Mountains ID-Lower Snake River Plain ID-
238 PM MDT WED AUG 22 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN ONEIDA...
SOUTHWESTERN POWER AND SOUTHEASTERN CASSIA COUNTIES UNTIL 330 PM
MDT...

At 237 PM MDT, Doppler radar was tracking a strong thunderstorm near
Malta, moving northeast at 35 mph.

Dime size hail and wind gusts up to 50 mph will be possible with this
storm.

Locations impacted include...
Malta, Rockland, Sublett Reservoir, Roy, Sweetzer Summit and Bridge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

A severe thunderstorm watch remains in effect until 900 PM MDT for
southeastern Idaho.

LAT...LON 4208 11342 4231 11354 4272 11287 4230 11241
TIME...MOT...LOC 2037Z 233DEG 30KT 4225 11334

Hinsberger

Special Weather Statement
National Weather Service Pocatello ID
302 PM MDT WED AUG 22 2018

IDZ052-067-068-222145-
Arco/Mud Lake Desert ID-Beaverhead/Lemhi Highlands ID-
Lost River Valleys ID-
302 PM MDT WED AUG 22 2018

...STRONG THUNDERSTORM NORTH OF HOWE MOVING NORTHEAST ACROSS
NORTHWESTERN JEFFERSON...EAST CENTRAL BUTTE AND SOUTHWESTERN CLARK
COUNTIES...

At 301 PM MDT, Doppler radar was tracking a strong thunderstorm 13
miles west of Northwest Inl or 22 miles northeast of Arco, moving
northeast at 35 mph.

Nickel size hail, winds in excess of 40 mph, frequent lightning, and
heavy rain will be possible with this storm.

Locations impacted include...
Monteview.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4379 11304 4388 11314 4421 11266 4397 11244
TIME...MOT...LOC 2101Z 237DEG 29KT 4388 11300

KSMITH/HINSBERGER

Special Weather Statement
National Weather Service Pocatello ID
329 PM MDT WED AUG 22 2018

IDZ054>059-222215-
Eastern Magic Valley ID-Franklin/Eastern Oneida Region ID-
Marsh and Arbon Highlands ID-Raft River Region ID-
Southern Hills/Albion Mountains ID-Lower Snake River Plain ID-
329 PM MDT WED AUG 22 2018

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL ONEIDA...CENTRAL
BANNOCK...SOUTHEASTERN POWER AND SOUTHEASTERN CASSIA COUNTIES UNTIL
415 PM MDT...

At 328 PM MDT, Doppler radar was tracking a strong thunderstorm 10
miles south of Rockland or 21 miles south of Neeley, moving northeast
at 35 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Western Pocatello, Malta, Rockland, Elba, Fort Hall Bannock Peak,
Fort Hall Bannock Creek Lodge, Juniper, Pauline, Mink Creek Pass,
Sweetzer Summit, Daniels Reservoir, Holbrook, Arbon, Sublett
Reservoir, Malad Pass, Roy, Bridge and Hawkins Reservoir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

A severe thunderstorm watch remains in effect until 900 PM MDT for
southeastern Idaho.

LAT...LON 4225 11365 4290 11245 4227 11219 4200 11320
      4199 11360
TIME...MOT...LOC 2128Z 244DEG 30KT 4242 11286

Hinsberger

Special Weather Statement
National Weather Service Pocatello ID
339 PM MDT WED AUG 22 2018

IDZ052-053-066>068-222215-
Centennial Mountains/Island Park ID-Arco/Mud Lake Desert ID-
Upper Snake River Plain ID-Beaverhead/Lemhi Highlands ID-
Lost River Valleys ID-
339 PM MDT WED AUG 22 2018

...STRONG THUNDERSTORMS CROSSING THE NORTHERN INL HEADING TOWARD
INTERSTATE 15...

At 337 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 14 miles northwest of Monteview to Mud Lake.
Movement was east at 45 mph.

Nickel size hail, wind gusts up to 50 mph, frequent lightning, and
heavy rain will be possible with these storms.

Locations impacted include...
Dubois, Terreton, Mud Lake, Hamer, Egin, Monteview, Plano, southern
Saint Anthony Sand Dunes and Small.

This includes Interstate 15 from just south of Hamer to just north
of Dubois.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4435 11207 4389 11173 4379 11263 4410 11288
TIME...MOT...LOC 2137Z 257DEG 39KT 4408 11274 4384 11250

KSMITH/HINSBERGER

Special Weather Statement
National Weather Service Pocatello ID
344 PM MDT WED AUG 22 2018

IDZ052>054-062-222230-
Arco/Mud Lake Desert ID-Upper Snake River Plain ID-
Blackfoot Mountains ID-Lower Snake River Plain ID-
344 PM MDT WED AUG 22 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL JEFFERSON...
NORTHWESTERN BONNEVILLE AND CENTRAL BINGHAM COUNTIES UNTIL 430 PM
MDT...

At 343 PM MDT, Doppler radar was tracking a strong thunderstorm near
Taber or 11 miles northwest of Blackfoot, moving northeast at 35 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Idaho Falls, Goshen, Ammon, Shelley, Iona, Firth, Moreland, Rose,
Taber, Basalt and Osgood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

A severe thunderstorm watch remains in effect until 900 PM MDT for
southeastern Idaho.

LAT...LON 4317 11263 4332 11278 4368 11211 4337 11170
TIME...MOT...LOC 2143Z 241DEG 30KT 4332 11251

Hinsberger