Alert archive / Idaho / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 33, NWS Pocatello, ID
NWS Pocatello, ID issued this severe thunderstorm warning at Jun 26, 2009, 3:06 PM MDT for Bingham County, Bonneville County, Jefferson County, Idaho. It was in force for 39 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 26, 2009, 3:06 PM MDT (21:06 UTC)
- Expired
- Jun 26, 2009, 3:45 PM MDT
- In force
- 39 min
- Issued by
- NWS Pocatello, ID
- Area
- Storm-based polygon
Counties Bingham County, ID, Bonneville County, ID, Jefferson County, ID
The radar
The Pocatello radar (KSFX), 62 km from the middle of the area, began a volume at 21:06 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, 9.1 hours before the alert went out and 300 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.
- Mixed-layer CAPE
- 58 J/kg
- Mixed-layer CIN
- -144 J/kg
- Mixed-layer LCL
- 1146 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- -34 m²/s²
- 0-3 km storm-relative helicity
- -117 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 26, 2:54 PM MDT, 12 minutes earlier.
Area forecast discussion, Jun 26, 2:54 PM MDT, 12 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE POCATELLO ID 254 PM MDT FRI JUN 26 2009 .SHORT TERM...THE UPPER LEVEL TROUGH AXIS WILL BE CROSSING THE EASTERN HIGHLANDS ABOUT 630 PM THIS EVENING AND THUNDERSTORM ACITVITY WILL TAPPER OFF QUICKLY THIS EVENING AS IT CROSS THE STATE LINE BEFORE MIDNIGHT. THE NEVADA LOW FROM THIS MORNING TRAVELED ACROSS THE SOUTHEAST CORNER OF THE STATE. THUNDERSTORMS BEGAN TRAINING IN THE POCATELLO AREA RESULTING IN FLASH FLOODING. ONCE THIS TROUGH AXIS MOVES EAST...A PREDOMINATELY WESTERLY FLOW OR ZONAL PATTERN DEVELOPS WITH LARGELY DRY CONDITONS THE NEXT SEVERAL DAYS. RS .AVIATION...SHOWERS AND THUNDERSTORMS OVE THE EASTERN HIGHLANDS AND UPPER SNAKE PLAIN ENDING BY 06Z. THEN...WIDESPREAD VFR. RS && .PIH WATCHES/WARNINGS/ADVISORIES... FLOOD WARNING FOR THE SNAKE RIVER AT BLACKFOOT CONTINUES. &&
Hazardous weather outlook, Jun 26, 4:41 AM MDT, 10 hours 25 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE POCATELLO ID 441 AM MDT FRI JUN 26 2009 IDZ017>025-031-032-271045- EASTERN MAGIC VALLEY-SAWTOOTH MOUNTAINS-UPPER SNAKE HIGHLANDS- UPPER SNAKE RIVER PLAIN-LOWER SNAKE RIVER PLAIN- SOUTH CENTRAL HIGHLANDS-CARIBOU HIGHLANDS- CACHE VALLEY/IDAHO PORTION-WASATCH MOUNTAINS/IDAHO PORTION- BIG AND LITTLE WOOD RIVER REGION-LOST RIVER/PAHSIMEROI- 441 AM MDT FRI JUN 26 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO. .DAY ONE...TODAY AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS ARE EPXECTED TO CONTINUE ACROSS THE AREA THROUGH THIS EVENING. LOCALLY HEAVY RAINFALL...PEAS SIZED HAIL AND WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THUNDERSTORMS. AREA WATERWAYS CONTINUE TO RUN HIGH DUE TO RECENT HEAVY RAINFALL. ADDITIONAL RAINFALL TTODAY COULD AGGRAVATE THE SITUATION. THE SNAKE RIVER NEAR BLACKFOOT IS EXPECTED TO CONTINUE TO FLOW NEAR MODERATE FLOOD STAGE TODAY. CONTINUE TO MONITOR THE LATEST RIVER FORECASTS FOR UPDATES ON THIS SITUATION. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY HIGH PRESSURE IS EXPECTED TO BRING DRIER WEATHER TO THE REGION SATURDAY THROUGH MONDAY. .SPOTTER INFORMATION STATEMENT... WE ASK TRAINED SPOTTERS AND CITIZENS TO REPORT SIGNIFICANT WEATHER CONDITIONS WHEN IT IS SAFE TO DO SO. THESE CONDITIONS MAY INCLUDE HAIL...TORNADOES...STRONG WIND...DUST STORMS...SNOWFALL... EXTREME COLD TEMPERATURES...FREEZING RAIN OR HEAVY RAIN...DENSE FOG...AND FLOODING OR ICE JAMS. INFORMATION ABOUT THESE HAZARDOUS CONDITIONS SHOULD BE CALLED INTO YOUR NATIONAL WEATHER SERVICE OFFICE IN POCATELLO USING THE 1-800 SEVERE WEATHER HOTLINE...OR 208-233-0834.
In the hours before
Local storm report, Jun 26, 2:07 PM MDT, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
207 PM MDT FRI JUN 26 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0149 PM FLASH FLOOD 2 S POCATELLO 42.85N 112.47W
06/26/2009 BANNOCK ID CO-OP OBSERVER
HEAVY FLOODING IN JUNIPER HILLS AT 2ND AND FREDRIGILL,
JUST NORTH OF ROSS PARK.
&&
GWICKLUNLocal storm report, Jun 26, 2:20 PM MDT, 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
220 PM MDT FRI JUN 26 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0210 PM HAIL POCATELLO 42.88N 112.47W
06/26/2009 M0.25 INCH BANNOCK ID NWS EMPLOYEE
HAIL FROM PHILBIN ROAD, ALONG I-86, TO CLARK STREET. 20
DEGREE TEMPERATURE DROP NOTED FROM AIRPORT TO PHILBIN
ROAD.
0215 PM HAIL 5 N PORTNEUF 42.87N 112.33W
06/26/2009 M0.25 INCH BANNOCK ID TRAINED SPOTTER
HAIL ON BUCKSKIN WITH 0.46 INCHES OF RAINFALL IN 20
MINUTES.
&&
GWICKLUNSpecial weather statement, Jun 26, 2:24 PM MDT, 42 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO
224 PM MDT FRI JUN 26 2009
IDZ019-020-032-262115-
CLARK ID-JEFFERSON ID-CUSTER ID-FREMONT ID-BUTTE ID-BONNEVILLE
ID-BINGHAM ID-
224 PM MDT FRI JUN 26 2009
THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY FOR...
SOUTHEASTERN CUSTER COUNTY IN CENTRAL IDAHO
CENTRAL BUTTE COUNTY IN EAST CENTRAL IDAHO
EXTREME SOUTHWESTERN FREMONT COUNTY IN EASTERN IDAHO
WESTERN CLARK COUNTY IN EASTERN IDAHO
EXTREME NORTH CENTRAL BINGHAM COUNTY IN SOUTHEAST IDAHO
NORTHWESTERN BONNEVILLE COUNTY IN SOUTHEAST IDAHO
JEFFERSON COUNTY IN SOUTHEAST IDAHO
UNTIL 315 PM MDT
AT 217 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES NORTH OF BERENICE..MOVING EAST AT 25 MPH.
HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN.
LOCATIONS IMPACTED INCLUDE...
NORTHWEST INL...
MONTEVIEW...
IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.
LAT...LON 4360 11200 4345 11322 4387 11355 4409 11310
4423 11285 4423 11281 4426 11280 4439 11259
4443 11212
TIME...MOT...LOC 2023Z 267DEG 20KT 4392 11293
WYATTLocal storm report, Jun 26, 2:37 PM MDT, 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
237 PM MDT FRI JUN 26 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0218 PM HAIL 2 S POCATELLO 42.85N 112.47W
06/26/2009 M0.50 INCH BANNOCK ID TRAINED SPOTTER
MARBLE SIZE HAIL OBSERVED. CURRENTLY OBSERVING VEHICLES
WITH SMALL DENTS ON SOUTH 5TH STREET, NEAR THE COMMON
CENTS STORE, AND NEAR JASON AND NORA STREETS.
0220 PM FLOOD POCATELLO 42.88N 112.47W
06/26/2009 BANNOCK ID CO-OP OBSERVER
FLOODING AT THE SOUTH 5TH INTERCHANGE WITH I-15, TO
INCLUDE NORA AVENUE. FIRE AND POLICE INDICATE NUMEROUS
HOMES IN AREA FLOODED.
0229 PM FLOOD POCATELLO 42.88N 112.47W
06/26/2009 BANNOCK ID NWS EMPLOYEE
WATER TO HOOD OF VEHICLE ON BANNOCK HIGHWAY NEAR GOLF
COURSE AT SOUTH END OF CITY.
&&
GWICKLUNLocal storm report, Jun 26, 2:44 PM MDT, 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
244 PM MDT FRI JUN 26 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0225 PM HAIL HOWE 43.78N 113.00W
06/26/2009 M0.25 INCH BUTTE ID CO-OP OBSERVER
HAIL WITH VERY LITTLE ACCUMULATION. NO FLOODING IN AREA.
&&
GWICKLUNLocal storm report, Jun 26, 3:03 PM MDT, 3 minutes before
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</html>The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 6:20 PM MDT | Special Weather Statement | PIH | Bannock | 55 min |
| Jun 26, 12:01 PM MDT | Special Weather Statement | PIH | Bannock | 44 min |
| Jun 26, 12:19 PM MDT | Flash Flood Warning | PIH | Bannock | 86 min |
| Jun 26, 1:32 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Caribou | 28 min |
| Jun 26, 1:49 PM MDT | Special Weather Statement | PIH | Oneida | 41 min |
| Jun 26, 1:50 PM MDT | Flash Flood Warning | PIH | Bannock | 55 min |
| Jun 26, 2:24 PM MDT | Special Weather Statement | PIH | Butte, Clark, Jefferson | 51 min |
| Jun 26, 2:44 PM MDT | Flash Flood Warning | PIH | Bannock | 61 min |
| Jun 26, 3:16 PM MDT | Special Weather Statement | PIH | Franklin | 59 min |
| Jun 26, 3:45 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville, Jefferson | 45 min |
| Jun 26, 3:46 PM MDT | Flash Flood Warning | PIH | Bannock | 119 min |
| Jun 26, 4:19 PM MDT | Special Weather Statement | PIH | Bear Lake, Caribou, Franklin | 56 min |
| Jun 26, 4:22 PM MDT | Severe Thunderstorm Warning | PIH | Butte | 19 min |
| Jun 26, 4:28 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville | 47 min |
| Jun 26, 4:46 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bear Lake, Caribou | 24 min |
| Jun 26, 5:09 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville | 33 min |
Nearby
Severe Thunderstorm Warnings in Idaho, 2009Every severe thunderstorm warning in 2009
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.