Alert archive / Idaho / Special Weather Statements in 2014

Special Weather Statement, NWS Pocatello, ID

August 7, 2014Bannock County, Idaho

NWS Pocatello, ID issued this special weather statement at Aug 7, 2014, 4:58 PM MDT for Bannock County, Idaho. It was in force for 47 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: Aug 7, 2014, 4:58 PM MDT (22:58 UTC)
Expired: Aug 7, 2014, 5:45 PM MDT
In force: 47 min
Issued by: NWS Pocatello, ID

County Bannock County, ID

The radar

The Pocatello radar (KSFX), 39 km from the middle of the area, began a volume at 23:00 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

Salt Lake City I, UT (KSLC), launched 12:00Z, 11.0 hours before the alert went out and 245 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: 15 J/kg
Mixed-layer CIN: -350 J/kg
Mixed-layer LCL: 1822 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 96 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.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 7, 1:14 PM MDT, 3 hours 44 minutes earlier.

Area forecast discussion, Aug 7, 1:14 PM MDT, 3 hours 44 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
114 PM MDT THU AUG 7 2014

.DISCUSSION...THE LOW PRESSURE SYSTEM THAT HAS BROUGHT HEAVY RAIN
TO THE AREA OVER THE PAST COUPLE DAYS IS BEGINNING TO MOVE
EASTWARD. THE LOW IS LOCATED NEAR THE IDAHO/UTAH BORDER AND WILL
CONTINUE TO MOVE EASTWARD THROUGH THE NIGHT. SHOWERS AND
THUNDERSTORMS WILL CONTINUE TO DEVELOP THROUGHOUT THE
AFTERNOON...MOST NOTABLY IN THE MOUNTAINS AND HIGHLANDS. SIMILAR
TO CONDITIONS ON WEDNESDAY...HEAVY DOWNPOURS ALONG WITH SMALL HAIL
ARE THE PRIMARY THREATS FROM THESE STORMS THIS AFTERNOON AND
TONIGHT.

SLIGHTLY DRIER AIR WILL WORK INTO THE REGION FOR THE WEEKEND.
HOWEVER THE ATMOSPHERE IS STILL VERY MOIST WITH PRECIPITABLE WATER
VALUES AROUND 0.9 INCHES. THE GFS AND NAM BOTH SHOW THUNDERSTORMS
MOVING THROUGH THE CENTRAL MOUNTAINS TOMORROW AFTERNOON...NOT SO
CERTAIN IN OTHER LOCATIONS. WILL ISSUE A FLASH FLOOD WATCH FOR
FRIDAY AFTERNOON PRIMARILY FOR BLAINE COUNTY AND THE BEAVER CREEK
BURN SCAR.

CONVECTION LOOKS A LITTLE MORE WIDESPREAD ON SATURDAY AS AN UPPER
LEVEL SHORTWAVE TROUGH WILL MOVE THROUGH THE REGION. ONCE
AGAIN...HEAVY RAIN IS POSSIBLE WITH THUNDERSTORMS. THE THREAT FOR
ISOLATED TO SCATTERED AFTERNOON THUNDERSTORMS WILL PERSIST THROUGH
AT LEAST MIDWEEK AS MODELS CONTINUE TO INDICATE THAT MONSOONAL FLOW
WILL PERSIST OVER THE REGION.

VALLE

&&

.AVIATION...HAVE SHOWERS AND VICINITY THUNDERSTORMS AT ALL TAF SITES
TODAY WITH MOST DEVELOPING NEAR SUN AND BYI EARLY.  EXPECT VFR
CONDITIONS EVEN IN SHOWERS BUT COULD SEE POCKETS OF MVFR IN HEAVIEST
DOWNPOURS.  EXPECT ISOLATED SHOWERS AND THUNDERSTORMS AGAIN FRIDAY
BUT EXPECT COVERAGE TO BE LESS WITH SUN MOST LIKELY SITE TO GET
ACTIVITY.  DO NOT EXPECT STRONG WINDS EXCEPT NEAR THUNDERSTORM
OUTFLOW.
GK

&&

.FIRE WEATHER...THE EXTREMELY MOIST AIRMASS INFLUENCED BY UPPER
LEVEL LOW PRESSURE SYSTEM MOVING THROUGH IDAHO TODAY REMAINS IN
PLACE.   VERY HIGH HUMIDITY CONTINUES WITH WIDESPREAD SHOWERS AND
ISOLATED TO WIDELY SCATTERED THUNDERSTORMS EXPECTED THROUGH EARLY
EVENING.   EXPECT SLIGHTLY DRIER CONDITIONS FRIDAY BUT HUMIDITY
SHOULD REMAIN WELL ABOVE CRITICAL LEVELS.  EXPECT ISOLATED TO WIDELY
SCATTERED SHOWERS AND THUNDERSTORMS ONCE AGAIN WITH LESS RAIN
COVERAGE EXPECTED.
GK

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH UNTIL MIDNIGHT MDT TONIGHT IDZ017>025-031-032.

FLASH FLOOD WATCH FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING
IDZ031.

&&

In the hours before

Special weather statement, Aug 7, 3:49 PM MDT, 1 hour 9 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
349 PM MDT THU AUG 7 2014

IDZ020-023-072245-
BINGHAM ID-BONNEVILLE ID-
349 PM MDT THU AUG 7 2014

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  CENTRAL BONNEVILLE COUNTY IN SOUTHEAST IDAHO
  EAST CENTRAL BINGHAM COUNTY IN SOUTHEAST IDAHO

AT 342 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 16 MILES EAST OF GOSHEN. THIS STORM WAS NEARLY
STATIONARY.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH
HEAVY RAIN AS IT LIFTS SLOWLY NORTH TOWARD BONE THROUGH 445 PM MDT.

LOCATIONS IMPACTED INCLUDE...
   BONE...

LAT...LON 4317 11169 4317 11187 4324 11190 4327 11187
      4328 11192 4340 11198 4341 11161
TIME...MOT...LOC 2148Z 177DEG 2KT 4324 11178

HUSTON

Special weather statement, Aug 7, 3:57 PM MDT, 1 hour 1 minute before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
357 PM MDT THU AUG 7 2014

IDZ019-020-072300-
JEFFERSON ID-BONNEVILLE ID-MADISON ID-FREMONT ID-
357 PM MDT THU AUG 7 2014

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  EXTREME SOUTH CENTRAL FREMONT COUNTY IN EASTERN IDAHO
  CENTRAL MADISON COUNTY IN SOUTHEAST IDAHO
  EXTREME NORTH CENTRAL BONNEVILLE COUNTY IN SOUTHEAST IDAHO
  EXTREME SOUTHEASTERN JEFFERSON COUNTY IN SOUTHEAST IDAHO

AT 348 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES NORTH OF POPLAR...MOVING NORTH AT 5 MPH.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH
HEAVY RAIN THROUGH 500 PM MDT.

LOCATIONS IMPACTED INCLUDE...
   ARCHER...

LAT...LON 4362 11153 4363 11161 4361 11163 4362 11178
      4392 11182 4390 11145
TIME...MOT...LOC 2157Z 184DEG 4KT 4371 11165

HUSTON

Special weather statement, Aug 7, 4:25 PM MDT, 33 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
425 PM MDT THU AUG 7 2014

IDZ019>021-023-072315-
TETON ID-JEFFERSON ID-BINGHAM ID-BONNEVILLE ID-MADISON ID-
425 PM MDT THU AUG 7 2014

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHEASTERN MADISON COUNTY IN SOUTHEAST IDAHO
  CENTRAL BONNEVILLE COUNTY IN SOUTHEAST IDAHO
  EAST CENTRAL BINGHAM COUNTY IN SOUTHEAST IDAHO
  EXTREME SOUTHEASTERN JEFFERSON COUNTY IN SOUTHEAST IDAHO
  WESTERN TETON COUNTY IN SOUTHEAST IDAHO

AT 418 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
NUMBER OF STRONG THUNDERSTORMS EXTENDING FROM SOUTH OF BONE TO THE
BIG HOLE MOUNTAINS EAST OF REXBURG. THESE STORMS WERE NEARLY
STATIONARY AND ARE EXPECTED TO PRODUCE WIND GUSTS UP TO 40 MPH AND
HEAVY RAIN THROUGH 515 PM MDT.

LOCATIONS IMPACTED INCLUDE...
  RURAL EASTERN BINGHAM COUNTY...
  CENTRAL BONNEVILLE COUNTY...
  EASTERN MADISON COUNTY...
  WESTERN TETON COUNTY...

LAT...LON 4323 11140 4315 11206 4383 11169 4385 11127
TIME...MOT...LOC 2222Z 319DEG 0KT 4322 11192

HUSTON

Special weather statement, Aug 7, 4:27 PM MDT, 31 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
427 PM MDT THU AUG 7 2014

IDZ017-018-031-032-072330-
BUTTE ID-BLAINE ID-CUSTER ID-
427 PM MDT THU AUG 7 2014

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHEASTERN CUSTER COUNTY IN CENTRAL IDAHO
  CENTRAL BLAINE COUNTY IN CENTRAL IDAHO
  EXTREME WEST CENTRAL BUTTE COUNTY IN EAST CENTRAL IDAHO

AT 424 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF THUNDERSTORMS EXTENDING FROM 16 MILES SOUTH OF CHILLY TO 9
MILES NORTHWEST OF GROUSE...MOVING SOUTH AT 20 MPH.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH
BRIEF HEAVY RAIN THROUGH 530 PM MDT.

LOCATIONS IMPACTED INCLUDE...
  RURAL NORTHERN BLAINE COUNTY...
  RURAL SOUTHEASTERN CUSTER COUNTY...
  RURAL WESTERN BUTTE COUNTY...
  RURAL CENTRAL BLAINE COUNTY...
  RURAL SOUTHWESTERN BUTTE COUNTY...

LAT...LON 4391 11401 4384 11363 4331 11364 4343 11418
TIME...MOT...LOC 2227Z 006DEG 19KT 4384 11394 4378 11369

HUSTON

Special weather statement, Aug 7, 4:35 PM MDT, 23 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
435 PM MDT THU AUG 7 2014

IDZ021-072315-
BINGHAM ID-POWER ID-BANNOCK ID-
435 PM MDT THU AUG 7 2014

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHWESTERN BANNOCK COUNTY IN SOUTHEAST IDAHO
  NORTHEASTERN POWER COUNTY IN SOUTHEAST IDAHO
  SOUTH CENTRAL BINGHAM COUNTY IN SOUTHEAST IDAHO

AT 430 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM WEST OF POCATELLO...MOVING SLOWLY NORTHWEST AT 5
MPH.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH
HEAVY RAIN. INDIVIDUALS LIVING ON THE WEST BENCH MAY SEE SWIFT
WATER RUNNING DOWN NORMALLY DRY GULLIES AND STREATS THROUGH 530 PM
MDT.

LOCATIONS IMPACTED INCLUDE...
   CHUBBUCK...
   POCATELLO WEST BENCH...

LAT...LON 4295 11270 4303 11248 4284 11240 4283 11242
      4280 11249
TIME...MOT...LOC 2234Z 142DEG 4KT 4287 11247

HUSTON

Special weather statement, Aug 7, 4:58 PM MDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
458 PM MDT THU AUG 7 2014

IDZ021-023-072345-
CARIBOU ID-BINGHAM ID-BANNOCK ID-
458 PM MDT THU AUG 7 2014

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  NORTH CENTRAL BANNOCK COUNTY IN SOUTHEAST IDAHO
  SOUTH CENTRAL BINGHAM COUNTY IN SOUTHEAST IDAHO
  NORTHWESTERN CARIBOU COUNTY IN SOUTHEAST IDAHO

UNTIL 545 PM MDT

AT 456 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS NEAR FORT HALL PUTNAM LODGE AND INKOM..MOVING
NORTH AT 5 MPH.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH
HEAVY RAIN.

LOCATIONS IMPACTED INCLUDE...
   FORT HALL PUTNAM LODGE...
   FORT HALL EAGLE LODGE...

LAT...LON 4300 11243 4318 11247 4317 11192 4275 11195
      4273 11222
TIME...MOT...LOC 2257Z 181DEG 6KT 4299 11233

EP

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 6:29 PM MDT	Special Weather Statement	PIH	Custer	61 min
Aug 7, 6:39 AM MDT	Special Weather Statement	PIH	Bingham, Power	51 min
Aug 7, 7:51 AM MDT	Special Weather Statement	PIH	Bannock, Bingham, Power	84 min
Aug 7, 2:13 PM MDT	Flash Flood Warning	PIH	Blaine	3 hr
Aug 7, 3:31 PM MDT	Special Weather Statement	PIH	Bonneville	59 min
Aug 7, 3:42 PM MDT	Special Weather Statement	PIH	Oneida	63 min
Aug 7, 3:49 PM MDT	Special Weather Statement	PIH	Bonneville	56 min
Aug 7, 3:57 PM MDT	Special Weather Statement	PIH	Madison	63 min
Aug 7, 4:25 PM MDT	Special Weather Statement	PIH	Bonneville, Madison	50 min
Aug 7, 4:27 PM MDT	Special Weather Statement	PIH	Blaine	63 min
Aug 7, 4:35 PM MDT	Special Weather Statement	PIH	Power	40 min
Aug 7, 4:48 PM MDT	Flash Flood Warning	PIH	Madison, Teton	3 hr
Aug 7, 5:12 PM MDT	Special Weather Statement	PIH	Jefferson	48 min
Aug 7, 5:27 PM MDT	Special Weather Statement	PIH	Custer	63 min
Aug 7, 5:30 PM MDT	Special Weather Statement	PIH	Blaine	60 min
Aug 7, 5:49 PM MDT	Special Weather Statement	PIH	Fremont	56 min

Nearby

Special Weather Statements in Idaho, 2014 Every special weather statement in 2014

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.