Convective showers resulted in one observed funnel cloud in Aumsville.
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 episode as NWS PQR wrote it up.
Convective showers resulted in one observed funnel cloud in Aumsville.
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 Portland, OR wrote its last area forecast discussion before the first event at Apr 8, 8:14 AM PST, 2 hours 16 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PORTLAND 914 AM PDT WED APR 8 2015 .SYNOPSIS...AN UPPER TROUGH WILL LINGER INLAND OVER WASHINGTON AND A GOOD PART OF OREGON TODAY AND CONTINUE TO PRODUCE SOME SHOWERS AND POSSIBLY AN AFTERNOON OR EVENING THUNDERSTORM. WEAK LOWER PRESSURE INLAND OVER WASHINGTON AND OREGON WILL PERSIST INTO THURSDAY WITH AN ISOLATED SHOWER OR THUNDERSTORM POSSIBLE IN THE AFTERNOON AND EARLY EVENING MAINLY NEAR THE CASCADES. THE NEXT PACIFIC FRONTAL SYSTEM IS EXPECTED TO MOVE DOWN FROM THE GULF OF ALASKA AND PUSH INLAND LATE FRIDAY FOR MORE LOWLAND RAIN AND CASCADE SNOW FOR THE WEEKEND. && .UPDATE...RADAR SHOWS SCATTERED SHOWERS CONTINUING THIS MORNING OVER THE NORTH OREGON CASCADES AND FOOTHILLS AS WELL AS IN A CLUSTER STRETCHING AROUND NEWPORT. SHOWERS ARE MOVING SLOWLY EAST SOUTHEAST. BOTH THE 12Z NAM AND 12Z GFS ARE TRENDING FASTER WITH AN UPPER SHORTWAVE AND ASSOCIATED VORTICITY MAX MOVING THROUGH THE AREA TODAY...WHICH IS THE MAIN FORCING FOR SHOWERS AND ANY POSSIBLE THUNDERSTORMS. FASTER TIMING MAY MEAN THAT THUNDERSTORM INITIATION IS POSSIBLE A BIT EARLIER...POSSIBLY EVEN BEFORE NOON. HOWEVER 12Z SLE SOUNDING SHOWS A VERY SLIGHT SURFACE BASED INVERSION...SO TEMPS WILL NEED TO WARM ENOUGH FIRST TO OVERCOME THE SMALL CAP BEFORE THUNDER IS POSSIBLE. OVERALL IT WOULD SEEM FASTER TIMING OF THE SHORTWAVE IS MORE LIKELY TO END UP LIMITING THUNDER CHANCES DUE TO A SHORTER OVERLAP IN PERIODS OF GOOD FORCING AND DECENT LOW LEVEL DYNAMICS. WILL KEEP SLIGHT CHANCE THUNDER IN THE FORECAST FOR NOW BUT THINK SMALL HAIL IS MORE LIKELY THAN THUNDER WITH STRONGER SHOWERS. WITH WEAK WINDS THROUGHOUT A SIGNIFICANT PORTION OF THE ATMOSPHERE...SIMILAR TO YESTERDAY...CANNOT RULE OUT ANOTHER STRAY FUNNEL CLOUD TODAY EVEN EXCLUSIVE OF ANY THUNDER. BOWEN .SHORT TERM (PREVIOUS DISCUSSION)...THE FRONT THAT WAS EXPECTED TO BRING A GOOD SHOT OF SNOW TO THE CENTRAL OREGON CASCADES HAS WEAKENED AS THE PARENT UPPER LOW SHIFT FURTHER EAST INTO THE GREAT BASIN. MOST OF THE PCPN OCCURRED LATE TUE EVENING. ESTIMATED SNOW AMOUNTS WERE IN THE A COUPLE OF INCHES TO AROUND 5 INCHES. SUMMIT LATE AT 5600 FT REPORTED 5 INCHES...THREE CREEKS MEADOW AT 5600 FT AROUND 1 INCH. PCPN APPEARED TO BE MORE CONVECTIVE IN NATURE AS THERE WERE SPOTS OF HIGHER PCPN WITH NEARBY SITES REPORTING SIGNIFICANTLY LOWER AMOUNTS. OVER THE LAST FEW HOURS SCATTERED SHOWERS HAVE DEVELOPED OVER THE NORTHERN ZONES AHEAD OF AN UPPER TROUGH MOVING IN FROM THE NW. THIS TROUGH WILL BE OVER THE INLAND AREAS THIS AFTERNOON AND HAVE INCREASED INSTABILITY ENOUGH TO KICK OF A FEW THUNDERSTORMS. THE STORMS WILL BE CAPPED BELOW 500 MB AND THERE IS LITTLE WIND SHEAR SO EXPECT THEM TO BE MORE PULSE TYPE STORMS. ON THURSDAY...SOME LINGERING INSTABILITY IS EXPECTED ONE MORE DAY MAINLY NEAR THE CASCADES IN THE AFTERNOON AND EVENING IN THE LAST GASP OF RETURN FLOW ON THE BACK SIDE OF THE WEAK INLAND LOW. THE NEXT FRONT IS EXPECTED TO BEGIN TO SPREAD INTO SOUTHWEST WASHINGTON AND FAR NORTHWEST OREGON FRIDAY...AND THE REMAINDER OF THE AREA FRIDAY NIGHT. THE 00Z RUNS HAVE DELAYED THE ONSET OF RAIN INTO THE AREA COMPARED TO TUE MODEL RUNS SO HAVE TRIMMED BACK ON POPS FOR FRI AFTERNOON. WE SHALL SEE IF TODAYS MODEL RUNS HOLD ON TO THIS NEW TREND. /MH .LONG TERM...NO CHANGES. PREVIOUS DISCUSSION FOLLOWS... FRIDAY NIGHT THROUGH MONDAY...RECENT MODEL RUNS HAVE SPED UP THE TIMING OF THE WEEKEND FRONT...AND SEEM TO BE SETTLING ON RAIN AND MOUNTAIN SNOW RETURNING TO THE PACIFIC NORTHWEST FRIDAY NIGHT. AN UPPER LEVEL TROUGH WILL MAINTAIN SHOWERS THROUGH THE WEEKEND... ALTHOUGH MOST OF THE SHOWERS WILL BE OVER THE HIGHER TERRAIN SUNDAY. SNOW LEVELS SHOULD BE AROUND 4000 FEET BEHIND THE FRONT...LATE FRIDAY NIGHT AND THEN GRADUALLY LOWER THROUGH THE WEEKEND TO AROUND 2500 FEET. TJ && .AVIATION...A FEW SHOWERS ARE CURRENTLY SCATTERED ACROSS THE AREA...MAINLY ALONG AND EAST OF A LINE FROM LINCOLN CITY TO KELSO. THIS IS FROM A WEAK SURFACE TROUGH WHICH IS STALLED ACROSS THE AREA. UNSTABLE AIRMASS WITH THIS TROUGH IS KEEPING MOST INLAND SITES VFR...WHILE CIGS AT COASTAL SITES ARE HOVERING AROUND VFR/MVFR THIS MORNING WITH WEAK WINDS. AN MVFR/IFR CLOUD DECK HAS BEEN IN PLACE OVER KTTD THIS MORNING...BUT SHOULD CLEAR OUT BY 18-20Z AS CONDITIONS DESTABILIZE WITH DAYTIME HEATING. EXPECT VFR CONDITIONS TO SPREAD TO ALL TAF SITES FOR THIS AFTERNOON WITH SCATTERED SHOWERS MAINLY INLAND. UNSTABLE CONDITIONS LEADS TO A SLIGHT CHANCE THAT A THUNDERSTORM THAT DEVELOPS COULD IMPACT AN INLAND TAF SITE. AS TROUGH MOVES OFF TO THE EAST THIS EVENING...THERE IS A CHANCE THAT SOME FOG COULD DEVELOP AT A FEW TAF SITES AROUND 12Z THURSDAY. SITES WITH HEAVIER SHOWERS THIS AFTERNOON WILL BE MORE LIKELY TO SEE CONDITIONS DETERIORATE TO MVFR/IFR...ALONG WITH COASTAL SITES. KPDX AND APPROACHES...SCATTERED SHOWERS HAVE DEVELOPED AROUND THE TERMINAL. A DESTABILIZING ATMOSPHERE THIS AFTERNOON SHOULD LEAD TO ADDITIONAL SHOWER ACTIVITY WITH A SLIGHT CHANCE OF A THUNDERSTORM. EXPECT PRIMARILY VFR CONDITIONS TO CONTINUE THROUGH THIS EVENING. THERE IS A CHANCE CONDITIONS COULD DETERIORATE TO MVFR/IFR WITH FOG/LOW STRATUS DEVELOPMENT TOWARDS 12Z THURSDAY...BUT CONFIDENCE IS LOW. -MCCOY/NEUMAN && .MARINE...HIGH PRESSURE OVER THE WATERS IS KEEPING WINDS AND SEAS FAIRLY CALM THROUGH THURSDAY NIGHT. SEAS EXPECTED TO STAY AROUND 3 TO 4 FT DURING THIS PERIOD. A PACIFIC FRONT FORECAST TO MOVE THROUGH THE WATERS FRIDAY WILL BRING WINDS AND SEAS UP ON FRIDAY WITH WINDS LIKELY REACHING 25 TO 30 KT...POSSIBLY GUSTING TO 35 KT PARTICULARLY WITHIN 20 NM OF THE COAST WITH A COASTAL JET. PERSISTENT WESTERLY FLOW BEHIND THE FRONT WILL GENERATE A SWELL TRAIN WHICH WILL INCREASE SEAS BEHIND THE FRONT FOR THE WEEKEND. SEAS WILL LIKELY REACH 10 FT SATURDAY EVENING OR SUNDAY MORNING. CONFIDENCE IS RELATIVELY LOW AS OF NOW IN HOW HIGH SEAS WILL GET...AS MODELS HAVE INDICATED PREVIOUSLY THAT SEAS COULD GET AS HIGH AS 15 FT. RIGHT NOW THINKING IS THAT SEAS WILL STAY AROUND 10 TO 12 FT THROUGH SUNDAY BEFORE DROPPING OFF A BIT ON MONDAY. EARLY NEXT WEEK...MODELS HAVE BEEN INCONSISTENT AND ARE NOT IN AGREEMENT IN THE FORECAST FOR WHAT WILL OCCUR. THIS KEEPS CONFIDENCE FAIRLY LOW IN THE FORECAST FOR THE EXTENDED PERIOD. -MCCOY/NEUMAN && .PQR WATCHES/WARNINGS/ADVISORIES... OR...NONE. WA...NONE. PZ...NONE. && INTERACT WITH US VIA SOCIAL MEDIA WWW.FACEBOOK.COM/NWSPORTLAND WWW.TWITTER.COM/NWSPORTLAND THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS COMMONLY REFERRED TO AS THE FORECAST AREA.
The Portland,OR radar (KRTX), 74 km away, was scanning. The volume nearest the first event began at 18:28 UTC.
1 funnel cloud. Local standard time, as filed.
A funnel cloud was reported near the Blimp Hanger at the Tillamook Airport. The report was relayed by the Tillamook County Emergency Manager and was accompanied by photos.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oregon in 2015Every state in 2015This day in weather historyWarnings in Oregon, April 2015
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: 565336.