Alert archive / Idaho / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 70, NWS Pocatello, ID

August 6, 20094 counties in Idaho

NWS Pocatello, ID issued this severe thunderstorm warning at Aug 6, 2009, 2:18 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 counties it named.

The facts

Issued
Aug 6, 2009, 2:18 PM MDT (20:18 UTC)
Expired
Aug 6, 2009, 3:00 PM MDT
In force
42 min
Issued by
NWS Pocatello, ID
Area
Storm-based polygon

Counties Bannock County, ID, Bingham County, ID, Bonneville County, ID, Caribou County, ID

The radar

The Pocatello radar (KSFX), 61 km from the middle of the area, began a volume at 20:18 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Aug 6, 12:34 PM MDTSevere Thunderstorm WatchSPC8 hr

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 Aug 6, 10:52 AM MDT, 3 hours 26 minutes earlier.

Area forecast discussion, Aug 6, 10:52 AM MDT, 3 hours 26 minutes before
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Hazardous weather outlook, Aug 6, 4:10 AM MDT, 10 hours 8 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE POCATELLO ID
410 AM MDT THU AUG 6 2009

IDZ017>025-031-032-071015-
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-
410 AM MDT WED AUG 5 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN IDAHO.

.DAY ONE...TODAY AND TONIGHT

NUMEROUS THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING OVER
THE CENTRAL MOUNTAINS AND THE UPPER SNAKE HIGHLANDS. ELSWHERE...
SCATTERED THUNDERSTORMS ARE EXPECTED. THERE IS THE POSSIBILITY FOR
AN ISOLATED SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WIND
THIS AFTERNOON AND EVENING IN CENTRAL AND EASTERN IDAHO.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED ON
FRIDAY. ISOLATED THUNDERSTORMS ARE EXPECTED IN THE CENTRAL MOUNTAINS
SATURDAY THROUGH WEDNESDAY.

.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

Special weather statement, Aug 6, 11:50 AM MDT, 2 hours 28 minutes before
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Local storm report, Aug 6, 12:59 PM MDT, 1 hour 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
1259 PM MDT THU AUG 06 2009

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

1240 PM     HAIL             ENE STANLEY             44.22N 114.93W
08/06/2009  M0.50 INCH       CUSTER             ID   TRAINED SPOTTER

            3/8 TO 1/2 INCH HAIL. VERY HEAVY RAIN. NORTHWEST WINDS AT
            12 MPH. TEMPERATURE 50 DEGREES. MOUNTAIN TOPS OBSCURED.

1249 PM     HAIL             STANLEY                 44.22N 114.94W
08/06/2009  M0.50 INCH       CUSTER             ID   OTHER FEDERAL

            HAIL AND HEAVY RAIN WITH WINDS FROM NORTH NORTHWEST AT
            12-15 MPH WITH GUSTS TO 18 MPH.

&&

GWICKLUN
Local storm report, Aug 6, 1:05 PM MDT, 1 hour 13 minutes before
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Special weather statement, Aug 6, 1:39 PM MDT, 39 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO
139 PM MDT THU AUG 6 2009

IDZ019-020-023-062030-
JEFFERSON ID-TETON ID-BONNEVILLE ID-MADISON ID-
139 PM MDT THU AUG 6 2009

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

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

UNTIL 230 PM MDT

AT 138 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 9 MILES NORTHEAST OF BONE..MOVING NORTHEAST AT 30
MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN.

LOCATIONS IMPACTED INCLUDE...
   POPLAR...

THIS STORM MAY INTENSIFY...AND A SEVERE THUNDERSTORM WATCH IS IN
EFFECT FOR THIS AREA. 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 4388 11156 4377 11125 4335 11161 4343 11181
TIME...MOT...LOC 1939Z 206DEG 26KT 4343 11168

HANKO

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 7:10 PM MDTSevere Thunderstorm WarningPIHBlaine, Butte, Custer, Lincoln58 min
Aug 6, 10:52 AM MDTFlash Flood WatchPIH8 hr
Aug 6, 11:50 AM MDTSpecial Weather StatementPIH40 min
Aug 6, 12:04 PM MDTSevere Thunderstorm WarningPIHCuster56 min
Aug 6, 12:21 PM MDTTornado WarningPIHCuster24 min
Aug 6, 12:43 PM MDTTornado WarningPIHCuster32 min
Aug 6, 1:03 PM MDTSevere Thunderstorm WarningPIHCuster42 min
Aug 6, 1:12 PM MDTTornado WarningPIHCuster18 min
Aug 6, 1:39 PM MDTSpecial Weather StatementPIHBonneville51 min
Aug 6, 1:52 PM MDTSevere Thunderstorm WarningPIHBingham, Bonneville38 min
Aug 6, 2:29 PM MDTSevere Thunderstorm WarningPIHFremont, Madison46 min
Aug 6, 2:41 PM MDTSevere Thunderstorm WarningPIHBonneville, Madison, Teton49 min
Aug 6, 2:49 PM MDTSevere Thunderstorm WarningPIHBingham, Bonneville, Caribou41 min
Aug 6, 2:58 PM MDTSevere Thunderstorm WarningPIHFremont, Madison, Teton47 min
Aug 6, 3:19 PM MDTSevere Thunderstorm WarningPIHBannock, Bingham, Blaine, Butte, Cassia, Minidoka and 2 more41 min
Aug 6, 3:33 PM MDTSevere Thunderstorm WarningPIHBonneville, Teton29 min
Aug 6, 3:37 PM MDTSpecial Weather StatementPIHBlaine, Butte, Custer, Lincoln38 min
Aug 6, 3:44 PM MDTSevere Thunderstorm WarningPIHClark, Fremont, Jefferson39 min
Aug 6, 4:02 PM MDTSpecial Weather StatementPIHBingham43 min
Aug 6, 4:16 PM MDTSevere Thunderstorm WarningPIHCuster29 min
Aug 6, 4:41 PM MDTSevere Thunderstorm WarningPIHBingham, Butte, Clark, Jefferson49 min
Aug 6, 4:51 PM MDTSevere Thunderstorm WarningPIHCuster24 min
Aug 6, 5:03 PM MDTSevere Thunderstorm WarningPIHClark27 min
Aug 6, 5:20 PM MDTSevere Thunderstorm WarningPIHButte, Clark, Jefferson25 min
Aug 6, 5:52 PM MDTSpecial Weather StatementPIHCuster53 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; radar from the NEXRAD Level II archive.