Alert archive / Idaho / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 15, NWS Boise, ID
NWS Boise, ID issued this severe thunderstorm warning at Jul 14, 2015, 5:53 PM MDT for Canyon County, Owyhee County, Idaho. It was in force for 37 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
- Jul 14, 2015, 5:53 PM MDT (23:53 UTC)
- Expired
- Jul 14, 2015, 6:30 PM MDT
- In force
- 37 min
- Issued by
- NWS Boise, ID
- Area
- Storm-based polygon
Counties Canyon County, ID, Owyhee County, ID
The radar
The Boise radar (KCBX), 46 km from the middle of the area, began a volume at 23:57 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.
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 Boise, ID wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 14, 2:31 PM MDT, 3 hours 22 minutes earlier.
Area forecast discussion, Jul 14, 2:31 PM MDT, 3 hours 22 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BOISE ID 231 PM MDT TUE JUL 14 2015 .SHORT TERM...TONIGHT THROUGH THURSDAY...UPPER LEVEL SHORT WAVE MOVING EAST ACROSS NRN NV IS HELPING CONVECTION DEVELOP OVER THE REGION. AS OF 220 PM MDT...THE MOST SIGNIFICANT AREAS WERE IN WRN BAKER COUNTY...OWYHEE COUNTY...AND ERN VALLEY COUNTY. SOME OF THE ACTIVITY OVER THE OWYHEES WILL LIKELY HEAD INTO THE TREASURE VALLEY...INCLUDING THE BOISE METRO AREA...AFTER 330 PM. WE EXPECT THE SHOWERS AND THUNDERSTORMS TO LAST WELL INTO THE EVENING AS THEY MOVE NORTHEAST AT 15 TO 20 MPH. THERE IS AN UPPER LEVEL TROUGH WEST OF THE AREA...THE SAME BASIC ENTITY THAT HAS BEEN THERE FOR THE PAST SEVERAL DAYS. THIS WILL MOVE EAST OVERNIGHT AND PASS OVER THE AREA EARLY TOMORROW. CONVECTION TOMORROW AFTERNOON AND EVENING WILL BE RESTRICTED TO OUR FAR ERN SECTIONS. AFTER TOMORROW EVENING...WE WILL BE DRY THE REMAINDER OF WED NIGHT AND ON THU AS DRIER ZONAL FLOW BECOMES ESTABLISHED. THE UPPER LEVEL FLOW WILL BECOME SLIGHTLY NORTH OF WEST LATE THU AS THE NEXT UPPER TROUGH TAKES AIM ON THE PAC NW. TEMPS WILL BE A FEW DEGREES BELOW NORMAL FOR DAYTIME HIGHS AND NEAR NORMAL AT NIGHT. GUSTY WINDS ARE EXPECTED NEAR SHOWERS AND THUNDERSTORMS. OTHERWISE NW WINDS WED AND THU AFTERNOON AND EVENING WILL BE A LITTLE STRONGER THAN THEY HAVE BEEN LATELY DUE TO THE INFLUENCE OF THE PASSING TROUGH AND THE ZONAL FLOW. .LONG TERM...THURSDAY NIGHT THROUGH TUESDAY...UPPER LEVEL LOW POISED IN CENTRAL CANADA IS EXPECTED TO MOVE SLOWLY EAST...WITH A LOBE OF ENERGY BREAKING OFF AND MOVING OVER OUR AREA ON FRIDAY. CONFIDENCE IS GROWING THAT AN ASSOCIATED COLD FRONT WILL SLOWLY SWEEP THROUGH THE AREA SOMETIME FRIDAY AFTERNOON/EVENING. AS THAT ENERGY FORMS INTO A CUT-OFF LOW OVER NORTHERN CALIFORNIA...THE FRONT WILL LIKELY STALL OUT ALONG THE ID/NV BORDER. HOWEVER... CONFIDENCE IS LOW ON HOW MUCH MOISTURE THIS SYSTEM WILL BE ABLE TO TAP INTO...AND THE GFS IS SIGNIFICANTLY MORE MOIST THAN THE ECMWF. SO...FOR NOW...POPS ARE LOW DESPITE A CONFIDENT COLD FRONT PASSAGE...BUT TEMPERATURES WILL LIKELY BE COOLER...MAYBE 10 DEGREES BELOW NORMAL...FRIDAY AND SATURDAY. FOR SUNDAY AND BEYOND...MODELS DIVERGE QUITE SIGNIFICANTLY IN HOW TO HANDLE THE CUT-OFF LOW...THE NEXT UPPER LOW OFF OF THE BRITISH COLUMBIA COAST...AND THE PATH OF HURRICANE DOLORES. && .AVIATION...MOSTLY VFR WITH SHOWERS AND THUNDERSTORMS. VARIABLE GUSTY WINDS UP TO 45 KTS...AND MVFR/IFR CONDITIONS DUE TO HEAVY RAIN ARE ALL POSSIBLE WITH STRONGER THUNDERSTORMS THROUGH SUNSET. OTHERWISE...SURFACE WINDS GENERALLY 12 KTS OR LESS. WINDS ALOFT NEAR 10K FT MSL...VARIABLE UP TO 15 KTS...THEN AFTER 15/18Z...WEST 10-15 KTS. && .BOI WATCHES/WARNINGS/ADVISORIES... ID...NONE. OR...NONE. && WEATHER.GOV/BOISE SHORT TERM...SP LONG TERM....EP/DD AVIATION.....EP
In the hours before
Special weather statement, Jul 14, 3:21 PM MDT, 2 hours 32 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BOISE ID 321 PM MDT TUE JUL 14 2015 IDZ015-142200- SOUTHWEST HIGHLANDS ID- 321 PM MDT TUE JUL 14 2015 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN OWYHEE COUNTY UNTIL 400 PM MDT... AT 320 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR BLACK ROCK MOUNTAIN...OR 19 MILES NORTHWEST OF JARBIDGE...MOVING NORTHEAST AT 20 MPH. HALF INCH HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM. THIS STRONG THUNDERSTORM WILL BE NEAR... POISON BUTTE AROUND 330 PM MDT. SEVY FALLS AROUND 340 PM MDT. CLOVER BUTTE AND JUNIPER RANCH AROUND 400 PM MDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... WHEN SAFE TO DO SO...PLEASE RELAY STORM REPORTS TO THE NATIONAL WEATHER SERVICE IN BOISE IDAHO VIA LOCAL LAW ENFORCEMENT...OR NWS BOISE FACEBOOK AND TWITTER ACCOUNTS. && LAT...LON 4203 11551 4210 11573 4248 11555 4237 11522 TIME...MOT...LOC 2120Z 205DEG 18KT 4214 11558 KA
Special weather statement, Jul 14, 3:48 PM MDT, 2 hours 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BOISE ID
348 PM MDT TUE JUL 14 2015
IDZ015-142230-
SOUTHWEST HIGHLANDS ID-
348 PM MDT TUE JUL 14 2015
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN OWYHEE COUNTY UNTIL
430 PM MDT...
AT 348 PM MDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR TINDALL RANCH TO 12
MILES SOUTH OF BLACK ROCK CROSSING...AND MOVING EAST AT 25 MPH.
NICKEL SIZE HAIL AND WIND GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE WITH
THESE STORMS.
STRONG THUNDERSTORMS WILL BE NEAR...
BLACK STONE MOUNTAIN AROUND 400 PM MDT.
BLACK ROCK MOUNTAIN AND BLACK ROCK CROSSING AROUND 410 PM MDT.
BRUNEAU RIVER LAUNCH SITE AROUND 420 PM MDT.
SEVY FALLS...MURPHY HOT SPRINGS...POISON BUTTE AND MIDDLE BUTTE
AROUND 430 PM MDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 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 AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.
WHEN SAFE TO DO SO...PLEASE RELAY STORM REPORTS TO THE NATIONAL
WEATHER SERVICE IN BOISE IDAHO VIA LOCAL LAW ENFORCEMENT...OR NWS
BOISE FACEBOOK AND TWITTER ACCOUNTS.
&&
LAT...LON 4225 11594 4243 11538 4200 11523 4199 11528
4200 11585
TIME...MOT...LOC 2148Z 255DEG 20KT 4220 11585 4190 11574
KASpecial weather statement, Jul 14, 4:01 PM MDT, 1 hour 52 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BOISE ID 401 PM MDT TUE JUL 14 2015 IDZ015-030-142245- SOUTHERN TWIN FALLS COUNTY ID-SOUTHWEST HIGHLANDS ID- 401 PM MDT TUE JUL 14 2015 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN OWYHEE AND SOUTHWESTERN TWIN FALLS COUNTIES UNTIL 445 PM MDT... AT 401 PM MDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR JUNIPER BUTTE TO NEAR CRAWFISH CROSSING...AND MOVING EAST AT 25 MPH. NICKEL SIZE HAIL AND WIND GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE WITH THESE STORMS. STRONG THUNDERSTORMS WILL BE NEAR... JUNIPER BUTTE AND SALLS CROSSING AROUND 410 PM MDT. THREE CREEK AROUND 420 PM MDT. COONSKIN BUTTE AND BLACK BUTTE AROUND 430 PM MDT. ROSEWORTH AND CEDAR CREEK RESERVOIR AROUND 440 PM MDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE. WHEN SAFE TO DO SO...PLEASE RELAY STORM REPORTS TO THE NATIONAL WEATHER SERVICE IN BOISE IDAHO VIA LOCAL LAW ENFORCEMENT...OR NWS BOISE FACEBOOK AND TWITTER ACCOUNTS. && LAT...LON 4203 11535 4235 11542 4247 11493 4208 11485 TIME...MOT...LOC 2201Z 259DEG 20KT 4230 11533 4212 11529 KA
Special weather statement, Jul 14, 4:33 PM MDT, 1 hour 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BOISE ID 433 PM MDT TUE JUL 14 2015 IDZ015-030-142315- SOUTHERN TWIN FALLS COUNTY ID-SOUTHWEST HIGHLANDS ID- 433 PM MDT TUE JUL 14 2015 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN OWYHEE AND SOUTHWESTERN TWIN FALLS COUNTIES UNTIL 515 PM MDT... AT 433 PM MDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 6 MILES SOUTH OF CLOVER BUTTE TO NEAR MURPHY HOT SPRINGS...AND MOVING EAST AT 25 MPH. NICKEL SIZE HAIL AND WIND GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE WITH THESE STORMS. STRONG THUNDERSTORMS WILL BE NEAR... JUNIPER BUTTE...SALLS CROSSING AND CRAWFISH CROSSING AROUND 450 PM MDT. THREE CREEK AROUND 500 PM MDT. BLACK BUTTE...COONSKIN BUTTE...CHINA MOUNTAIN AND ROSEWORTH AROUND 510 PM MDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE. WHEN SAFE TO DO SO...PLEASE RELAY STORM REPORTS TO THE NATIONAL WEATHER SERVICE IN BOISE IDAHO VIA LOCAL LAW ENFORCEMENT...OR NWS BOISE FACEBOOK AND TWITTER ACCOUNTS. && LAT...LON 4229 11556 4248 11488 4200 11476 4199 11542 TIME...MOT...LOC 2233Z 260DEG 23KT 4228 11540 4199 11532 KA
Special weather statement, Jul 14, 4:44 PM MDT, 1 hour 9 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BOISE ID
444 PM MDT TUE JUL 14 2015
ORZ063-142330-
MALHEUR COUNTY OR-
444 PM MDT TUE JUL 14 2015
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL MALHEUR COUNTY UNTIL 530
PM MDT...
AT 443 PM MDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR RUFINO BUTTE TO NEAR
BIRCH CREEK CAMPGROUND...AND MOVING EAST AT 25 MPH.
NICKEL SIZE HAIL AND WIND GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE WITH
THESE STORMS.
STRONG THUNDERSTORMS WILL BE NEAR...
KNOTTINGHAM BUTTE AROUND 450 PM MDT.
BIRCH CREEK CAMPGROUND...FREEZEOUT MOUNTAIN AND COFFEEPOT CRATER
AROUND 500 PM MDT.
DIAMOND BUTTE AROUND 510 PM MDT.
TWIN SPRINGS CAMPGROUND...SLOCUM CREEK CAMPGROUND AND PELICAN POINT
AROUND 520 PM MDT.
LESLIE GULCH...MAHOGANY MOUNTAIN...OWYHEE DAM AND OWYHEE RESERVOIR
AROUND 530 PM MDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.
WHEN SAFE TO DO SO...PLEASE RELAY STORM REPORTS TO THE NATIONAL
WEATHER SERVICE IN BOISE IDAHO VIA LOCAL LAW ENFORCEMENT...OR NWS
BOISE FACEBOOK AND TWITTER ACCOUNTS.
IF ON OR NEAR OWYHEE RESERVOIR...GET OUT OF THE WATER AND MOVE
INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO
15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU
ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER
NOW. DO NOT BE CAUGHT ON THE WATER IN A THUNDERSTORM.
&&
LAT...LON 4362 11777 4376 11719 4374 11718 4374 11715
4316 11704 4314 11767
TIME...MOT...LOC 2243Z 259DEG 21KT 4356 11768 4323 11761
KASpecial weather statement, Jul 14, 5:07 PM MDT, 46 minutes before
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</html>The office that day
Everything else NWS Boise, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 2:23 PM MDT | Special Weather Statement | BOI | Owyhee | 22 min |
| Jul 14, 2:51 PM MDT | Special Weather Statement | BOI | 39 min | |
| Jul 14, 2:59 PM MDT | Severe Thunderstorm Warning | BOI | Owyhee | 46 min |
| Jul 14, 3:21 PM MDT | Special Weather Statement | BOI | 39 min | |
| Jul 14, 3:48 PM MDT | Special Weather Statement | BOI | 42 min | |
| Jul 14, 4:01 PM MDT | Special Weather Statement | BOI | Twin Falls | 44 min |
| Jul 14, 4:33 PM MDT | Special Weather Statement | BOI | Twin Falls | 42 min |
| Jul 14, 5:07 PM MDT | Special Weather Statement | BOI | Twin Falls | 38 min |
| Jul 14, 5:35 PM MDT | Severe Thunderstorm Warning | BOI | Owyhee | 25 min |
| Jul 14, 4:44 PM MDT | Special Weather Statement | BOI | Malheur | 46 min |
| Jul 14, 4:56 PM MDT | Severe Thunderstorm Warning | BOI | Malheur | 49 min |
Nearby
Severe Thunderstorm Warnings in Idaho, 2015Every severe thunderstorm warning in 2015
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.