Another snow storm struck South Central Idaho on the 20th leaving 5 to 7 inches of snow across the Twin Falls area.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 episode as NWS BOI wrote it up.
Another snow storm struck South Central Idaho on the 20th leaving 5 to 7 inches of snow across the Twin Falls area.
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 Feb 19, 8:52 PM MST, 4 hours 8 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BOISE ID 852 PM MST TUE FEB 19 2013 .DISCUSSION...A LARGE UPPER LOW IS MOVING SOUTH OVER WEST CENTRAL CALIFORNIA THIS EVENING AND A SURFACE LOW REMAINS ANCHORED ACROSS SOUTHERN NEVADA. SNOW SHOWERS CONTINUE ACROSS THE SOUTHEASTERN PORTION OF THE CWA...NAMELY THE FAR UPPER TREASURE VALLEY... EASTERN OWYHEE COUNTY...THE WESTERN MAGIC VALLEY...AND SOUTHERN TWIN FALLS COUNTY. ACCUMULATIONS HAVE BEEN MINIMAL SO FAR. A WINTER WEATHER ADVISORY IS STILL SCHEDULED TO BEGIN AT 11 PM FOR SOUTHERN TWIN FALLS COUNTY. THIS WILL RUN UNTIL 11 AM WEDNESDAY MORNING. NO CHANGES ARE PLANNED AT THIS TIME. && .AVIATION...SCATTERED MVFR/IFR SNOW SHOWERS TONIGHT - MAINLY ACROSS SOUTH CENTRAL IDAHO. EXPECT SNOW SHOWERS TO CONTINUE ALONG THE IDAHO/NEVADA BORDER IN THE THE WESTERN MAGIC VALLEY THROUGH 18Z. LIGHT W/NW SURFACE WINDS GENERALLY 15 KTS. NORTHWESTERLY WINDS ALOFT AT 25 KTS. && .PREV DISCUSSION... SHORT TERM...MODELS STILL TARGETING SRN TWIN FALLS COUNTY FOR SNOW LATE TONIGHT THROUGH WEDNESDAY MORNING AND ADVISORY WILL CONTINUE THERE. THAT AREA IS ON THE NRN FRINGE OF A STORM IN SRN NEVADA THAT IS MOVING EAST. ELSEWHERE...SCATTERED LIGHT SNOW SHOWERS IN THE MOUNTAINS...LITTLE OR NONE IN THE VALLEYS TONIGHT THROUGH WEDNESDAY NIGHT. UPPER TREASURE VALLEY HAS BEEN SHADOWED BY SWLY WINDS GOING OVER THE OWYHEE MOUNTAINS. COLD ADVECTION TONIGHT VIA NW SURFACE WINDS UNDER UPPER LEVEL TROUGH. UPPER TROUGH AXIS WILL BE RIGHT OVER OUR CWA WEDNESDAY BUT MOISTURE WILL BE IN ERN IDAHO AT THAT TIME. ON THURSDAY MORE MOISTURE OVERRUNNING THE NEXT RIDGE UPSTREAM WILL REACH BAKER COUNTY AND WRN HARNEY COUNTY FOR A SLIGHT CHANCE OF SNOW SHOWERS THU AFTERNOON. LITTLE CHANGE IN TEMPERATURE THURSDAY FROM WEDNESDAY. LONG TERM...THURSDAY NIGHT THROUGH TUESDAY...POTENT STORM SYSTEM STILL ON TAP TO AFFECT THE AREA LATER THIS WEEK. HOWEVER...HAVE LOWERED CHANCES OF PRECIPITATION THURSDAY NIGHT AND EARLY FRIDAY AS MOST RECENT MODEL RUNS HAVE ALL BACKED OFF WARM-FRONTAL PRECIPITATION CONSIDERABLY. MAIN STORM FEATURE NOW THE COLD FRONT THAT IS TIMED TO MOVE EAST ACROSS THE FORECAST AREA FRIDAY NIGHT THROUGH SATURDAY MORNING - EXPECT MODERATE WINDS...VALLEY RAIN AND SNOW...AND SIGNIFICANT SNOWFALL ACROSS THE MOUNTAINS. GUSTY WINDS AND INSTABILITY SHOWERS WILL PERSIST THROUGH LATE SATURDAY. WARMER AND DRIER ON SUNDAY AS HEIGHTS REBOUND BEHIND THE EXITING SYSTEM. BREAK IN ACTIVE WEATHER WILL BE SHORT-LIVED...HOWEVER...AS ANOTHER UPPER LEVEL SYSTEM MOVES OVER THE INTERMOUNTAIN REGION MONDAY AFTERNOON. && .BOI WATCHES/WARNINGS/ADVISORIES... ID...WINTER WEATHER ADVISORY UNTIL 11 AM MST WEDNESDAY IDZ030. OR...NONE. && WEATHER.GOV/BOISE DISCUSSION...SP AVIATION.....JS PREV SHORT TERM...LC PREV LONG TERM....MT/WH
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE BOISE ID 1001 PM MST TUE FEB 19 2013 IDZ030-201200- SOUTHERN TWIN FALLS COUNTY- 1001 PM MST TUE FEB 19 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL IDAHO. .DAY ONE...TONIGHT A WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 11 AM MST WEDNESDAY. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 11 AM MST WEDNESDAY. LINGERING SNOW SHOWERS WEDNESDAY THROUGH FRIDAY WITH ANOTHER ROUND OF SNOW FOR THE WEEKEND. .SPOTTER INFORMATION STATEMENT... SNOW FALL REPORTS ARE ENCOURAGED. IDZ011>016-028-029-033-ORZ061>064-201200- WEST CENTRAL MOUNTAINS-LOWER TREASURE VALLEY ID-BOISE MOUNTAINS- UPPER TREASURE VALLEY-SOUTHWEST HIGHLANDS-WESTERN MAGIC VALLEY- CAMAS PRAIRIE-OWYHEE MOUNTAINS-UPPER WEISER RIVER-HARNEY COUNTY- BAKER COUNTY-MALHEUR COUNTY-LOWER TREASURE VALLEY OR- 1001 PM MST TUE FEB 19 2013 /901 PM PST TUE FEB 19 2013/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL IDAHO...SOUTHWEST IDAHO...WEST CENTRAL IDAHO...NORTHEAST OREGON AND SOUTHEAST OREGON. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
The national radar mosaic for the moment the first event began.
1 heavy snow. Local standard time, as filed.
Multiple reports of 5 to 7 inches of snow in the Twin Falls area via KMVT Facebook.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2013Every state in 2013This day in weather historyWarnings in Idaho, February 2013
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: 433539.