1 tornado, as filed by the National Weather Service.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, 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 the first event at Sep 13, 3:15 PM MST, 45 minutes earlier.
SOUTHWEST IDAHO/SOUTHEAST OREGON AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BOISE IDAHO 415 PM MDT THU SEP 13 2001 18Z RAOB SHOWED MODIFIED CAPE TO 1600 WHILE SCAN LOCAL CAPES SHOWS UP TO 2200 J/KG. LI -6. SATELLITE IN RSO SINCE 1PM SHOWING OVERSHOOTING TOPS IN VIS/IR WITH LOCAL REPORTS OF DIME HAIL NR ARROWROCK DAM AND OUTFLOW BOUNDARY THRU UPPER TREASURE VALLEY EARLY AFTN AND IN LOWER T.V. AT 415 PM. HEAVY RAIN REPORTS ALL OVER LAST NIGHT AND TODAY WITH ONE HOUR TOTALS TO 0.4 AND STORM TOTALS TO 0.8 AT HIGH ELEVATION RAWS. SHORTWAVE TROF WITH COMMAHEAD OVER TREASURE VALLEY TO CONTINUE MOVING NORTH AS UPPER LOW IN SOUTH CENTRAL OREGON, WITH LESS IMPRESSIVE RW/TRW, SHIFTS NE THROUGH THE CWFA. SOME CLOUDS LINGERING TONIGHT BUT JUST ISOLATED BY MIDNIGHT. LOTS OF MOISTURE FROM BRIEF HEAVY RAIN FOR SOME CLOUDS FRIDAY. SOME CLEARING FRIDAY NIGHT FOR COOLER NIGHT. WEAK SHORTWAVE SATURDAY AFTERNOON FOR SLIM CHANCE POPS. SUNDAY DRY. YESTERDAYS 12Z AVN AND ABOUT 3 RUNS AGO MRF COMING TOGETHER WITH A CHANCE OF RAIN MONDAY. DRYING AND WARMER TUESDAY THROUGH THURSDAY. .BOI...NONE.
The national radar mosaic for the moment the first event began.
1 tornado. Local standard time, as filed.
A tornado touched down briefly and moved east, crossing US Highway 95 about 7 miles north of Weiser. A barn, shed and mobile home received some damage before the tornado lifted.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2001Every state in 2001This day in weather historyThe tornado archive for Idaho, 2001Warnings in Idaho, September 2001
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5269248.