A thunderstorm over Modoc County brought strong winds to the area on the evening|of 7/09/15.
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The episode as NWS MFR wrote it up.
A thunderstorm over Modoc County brought strong winds to the area on the evening|of 7/09/15.
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 Medford, OR wrote its last area forecast discussion before the first event at Jul 9, 5:31 PM PST, 21 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE MEDFORD OR 631 PM PDT THU JUL 9 2015 .DISCUSSION...THUNDERSTORMS ARE ONGOING AT THE MOMENT...WITH TWO FOCUS AREAS. THE FIRST IMPULSE REVOLVING AROUND THE UPPER LOW IN CALIFORNIA/NEVADA IS MAKING ITS WAY INTO THE CASCADES AND THE WESTSIDE NOW...BRINGING LOTS OF LIGHTNING AND WETTING RAINS. SOME OF THE RAIN HAS LIKELY BEEN HEAVY IN WESTERN SISKIYOU COUNTY BETWEEN OBSERVATION LOCATIONS...BUT ONLY ABOUT TWO TENTHS OF AN INCH HAS BEEN OBSERVED AT MEASURING STATIONS. THIS INITIAL ROUND OF STORMS MAY DISSIPATE LATER THIS AFTERNOON AS THE SHORTWAVE ENERGY PASSES THROUGH...THOUGH THE AFTERNOON HEATING COULD MAINTAIN STORMS INTO THE EVENING IN THE WEST SIDE...SO WILL MAINTAIN SCATTERED STORMS THERE. ADDITIONALLY...FROM THE CASCADES WESTWARD PRECIPITABLE WATER VALUES ARE VERY HIGH...ABOVE 1.3 INCHES WHICH IS TOP 5 PERCENT FOR THIS TIME OF YEAR. THIS MEANS HEAVY RAIN COULD ACCOMPANY ANY OF THESE STORMS...AND WITH STORM MOTION ONLY ABOUT 5- 10 KTS...STREET AND STREAM FLOODING IS A CONCERN AND WE ARE MONITORING THAT FOR PRODUCT ISSUANCES. THE NEXT IMPULSE IS MOVING INTO THE EAST SIDE NOW...AND IS GENERATING THUNDERSTORMS IN LAKE AND MODOC COUNTIES. AS THIS PROGRESSES FROM EAST TO WEST EXPECT THUNDERSTORMS TO BECOME SCATTERED...POTENTIALLY AFFECTING THE KLAMATH FALLS AREAS LATE THIS AFTERNOON AND EVENING. STORMS SHOULD DIMINISH OVERNIGHT...WITH BASICALLY A SLIGHT CHANCE OF THUNDER MAINTAINED OVERNIGHT FOR JACKSON COUNTY EASTWARD. THIS IS MAINLY BASED ON LINGERING SHORTWAVE ENERGY. A GOOD MARINE PUSH IS EXPECTED TONIGHT AT THE COAST AND COASTAL VALLEYS...WITH SOME DRIZZLE EXPECTED THERE AS THE MARINE LAYER DEEPENS. TOMORROW AND SATURDAY THE THUNDERSTORM CHANCES CONTINUE...BUT FOR DIFFERENT REASONS. ON FRIDAY THE UPPER LOW TO THE SOUTH STILL WILL AFFECT THE AREA...MAINTAINING WEAK SHORTWAVE ACTIVITY...MOISTURE...AND SOME INSTABILITY IN THE FORM OF NEGATIVE LIFTED INDICES. ON SATURDAY THAT LOW FINALLY FILLS AND ADDITIONAL SHORTWAVE TROUGHING ARRIVES FROM THE WEST. THOUGH NOT AS UNSTABLE AS PREVIOUS DAYS...THE ENERGY ARRIVING SHOULD BE ENOUGH TO GENERATE THUNDERSTORMS MOSTLY ALONG AND EAST OF THE CASCADES. THE NEVER-ENDING CHANCE FOR THUNDERSTORMS WANES BEGINNING ON SUNDAY AS NEGATIVE LIFTED INDICES BECOME FOCUSED OVER THE CASCADES...AND THEN ONLY OVER NORTHEAST LAKE COUNTY ON MONDAY. THIS IS BASED ON THE GFS40 MODEL...SO WILL NOT BE PERFECT...BUT IT PROVIDES A GOOD IDEA TO THE EVOLUTION OF THUNDERSTORM CHANCES INTO EARLY NEXT WEEK. JUST AS THUNDERSTORM CHANCES ARE TRENDING LOWER...SO ARE TEMPERATURES. WE EXPECT NEAR NORMAL TEMPERATURES THROUGH EARLY NEXT WEEK...THEN REBOUND BY THE MIDDLE OF THE WEEK...WITH DECENT AGREEMENT ON THIS PROGRESSION BY THE EC AND GFS. && .AVIATION...FOR THE 10/00Z TAF CYCLE...THE MAIN CONCERN THIS EVENING IS THUNDERSTORMS. AS OF 01Z STORMS ARE OCCURRING OVER THE DOUGLAS COUNTY FOOTHILLS AND IN JOSEPHINE COUNTY...TRACKING SLOWLY WESTWARD AND DIMINISHING SOMEWHAT IN INTENSITY...THOUGH UNCERTAINTY IS HIGH RE THUNDERSTORMS IN THE VCTY OF KRBG. CURRENT GUIDANCE HAS THUNDERSTORMS STAYING EAST OF KRBG...WITH MUCH OF THE UMPQUA BASIN AFFECTED BY STRATIFORM RAIN. THUNDERSTORMS ARE EXPECTED TO DIMINISH TONIGHT...BUT ISOLATED THUNDERSTORMS CAN'T BE RULED OUT IN JACKSON COUNTY...EASTERN DOUGLAS COUNTY...AND OVER THE CASCADES EASTWARD. THUNDERSTORMS CAN BRING AREAS OF MODERATE TO HEAVY RAIN...SMALL HAIL...AND GUSTY OUTFLOW WINDS. VFR CONDITIONS ARE EXPECTED IN INLAND AREAS SOUTH AND EAST OF THE UMPUA DIVIDE...BUT TEMPORARY MVFR CIGS AND REDUCED VIS ARE POSSIBLE IN SHOWERS. A MARINE PUSH IS EXPECTED ALONG THE COAST...BRINGING MVFR CIGS THE COAST AND UMPQUA BASIN. AREAS OF LOWER VIS IN PATCHY FOG AND DRIZZLE ARE EXPECTED ALONG THE COAST...AND IFR CIGS ARE LIKELY ALONG THE SOUTH COAST. THERE IS UNCERTAINTY IN CIGS ALONG THE NORTH COAST...BUT EXPECT THE TOP OF THE MARINE LAYER TO BE SUFFICIENTLY HIGH TO PREVENT IFR CIGS. -MSC && .MARINE...UPDATED 0300 PM PDT THURSDAY JULY 9 2015...VARIABLE WINDS WILL SHIFT TO SOUTH OF SOUTHWEST AND INCREASE THIS AFTERNOON. ISOLATED THUNDERSTORMS ARE EXPECTED ALONG THE SOUTH COAST THIS EVENING. LOW STRATUS WITH PATCHY FOG AND POSSIBLE DRIZZLE WILL FORM EARLY TOMORROW MORNING...PRIMARILY AFFECTING AREAS NORTH OF CAPE BLANCO. FOG AND DRIZZLE WILL CLEAR BY LATE MORNING...AND STRATUS WILL LIFT...BUT NOT CLEAR. SOUTH TO SOUTHWEST WINDS WILL DOMINATE THROUGH THE WEEKEND AS A SURFACE LOW PRESSURE SYSTEM FORMS 150 NM WEST OF PORTLAND. WINDS WILL CONTINUE TO INCREASE TOMORROW AFTERNOON. STRONGEST WINDS ARE EXPECTED NORTH OF CAPE BLANCO. WINDS AND SEAS WILL STAY BELOW ADVISORY CRITERIA THROUGH THE WEEKEND. SEAS OF 4 TO 6 FEET DUE TO MIXED NORTHWEST SWELL AND LONGER PERIOD SOUTHWEST SWELL WILL PERSIST THROUGH THE WEEKEND. WINDS WILL SHIFT TO WESTERLY SUNDAY...THEN SHIFT TO NORTHERLY MONDAY INTO TUESDAY AS A THERMAL TROUGH DEVELOPS...BRINGING INCREASED NORTH WINDS AND STEEP SEAS. CONDITIONS WILL LIKELY REACH ADVISORY LEVEL AS EARLY AS TUESDAY MORNING...BUT DETAILS ARE STILL BEING RESOLVED. -MSC && .FIRE WEATHER...UPDATED 245PM PDT, THURSDAY, JULY 9TH, 2015... PESKY LOW PRESSURE IS NOW MOVING INLAND FROM CALIFORNIA INTO THE GREAT BASIN. LOW PRESSURE IMPULSES ROTATING AROUND THIS LOW WILL CONTINUE TO RESULT IN SCATTERED THUNDERSTORMS THIS AFTERNOON AND EVENING FROM AREAS JUST WEST OF THE CASCADES AND NORTH OF THE SISKIYOUS AND EASTWARD AND ACROSS NORTHERN CALIFORNIA. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED THROUGH THIS EVENING FROM EASTERN DOUGLAS COUNTY SOUTHWESTWARD INTO JOSEPHINE COUNTY. CONCERNS FOR NEW FIRE STARTS ARE GREATEST IN THIS LATTER AREA DUE TO CURRENTLY DRY FUELS. ON FRIDAY, THE CURRENTLY STALLED PATTERN WILL SHIFT SLIGHTLY EAST FROM WHERE IT IS TODAY. THUNDERSTORMS WILL BRING MODERATE TO LOCALLY HEAVY RAINFALL IN STORM CORES, AS WELL AS THE POSSIBILITY OF HAIL IN AND GUSTY WINDS. COOLER TEMPERATURES ARE EXPECTED THROUGH THE WEEKEND ALONG WITH CHANCES FOR SHOWERS AND MOSTLY ISOLATED THUNDERSTORMS. GUSTY SOUTHWEST WINDS ARE EXPECTED FOR THE CASCADES EASTWARD THIS WEEKEND. BTL && .MFR WATCHES/WARNINGS/ADVISORIES... OR... RED FLAG WARNING UNTIL 8 PM PDT THIS EVENING FOR ORZ620>622. CA... PACIFIC COASTAL WATERS...NONE. NSK/BTL/MSC
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEDFORD OR 432 PM PDT THU JUL 9 2015 ORZ023-025>028-100000- EASTERN DOUGLAS COUNTY FOOTHILLS-JACKSON COUNTY-SISKIYOU MOUNTAINS AND SOUTHERN OREGON CASCADES-SOUTH CENTRAL OREGON CASCADES-CENTRAL DOUGLAS COUNTY- 432 PM PDT THU JUL 9 2015 AT 431 PM PDT...A STRONG THUNDERSTORM WAS OVER UNION CREEK...OR 16 MILES WEST OF CRATER LAKE...MOVING NORTHWEST AT 5 MPH. WINDS IN EXCESS OF 30 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... THOUSAND SPRINGS SNO-PARK...UNION CREEK...NATURAL BRIDGE CAMPGROUND AND ROGUE GORGE. FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE. THIS STORM 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. LAT...LON 4286 12226 4279 12260 4291 12287 4308 12226 TIME...MOT...LOC 2331Z 145DEG 6KT 4291 12246 SCHAAF
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
439 PM PDT THU JUL 9 2015
...TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
...DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0437 PM HEAVY RAIN 2 ENE MURPHY 42.36N 123.29W
07/09/2015 M0.60 INCH JOSEPHINE OR TRAINED SPOTTER
SPOTTER REPORTS 0.6" OF RAINFALL OVER THE
PAST 12 MINUTES FROM A STORM THAT PASSED
THROUGH. RAIN IS STILL FALLING, BUT HAS
LIGHTENED CONSIDERABLY. THERE IS MOVING
WATER ON HIS DRIVEWAY AT THE TOP OF THE
HILL. OBSERVER LOCATION GRANTS PASS.
&&
BSSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEDFORD OR 457 PM PDT THU JUL 9 2015 ORZ024-100100- EASTERN CURRY COUNTY AND JOSEPHINE COUNTY- 457 PM PDT THU JUL 9 2015 ...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN AROUND GRANTS PASS... AT 455 PM PDT...STRONG THUNDERSTORMS CONTINUE TO PRODUCE VERY HEAVY RAINFALL OVER GRANTS PASS. THE STORMS WERE MOVING SOUTHWEST AT 15 MPH. MINOR URBAN FLOODING COULD OCCUR BRIEFLY ON STREETS THROUGH 6 PM. LOCATIONS IMPACTED INCLUDE... GRANTS PASS...SCHROEDER PARK...TOM PEARCE PARK...REDWOOD AND HARBECK-FRUITDALE. LAT...LON 4240 12326 4240 12340 4248 12340 4248 12326 TIME...MOT...LOC 2353Z 180DEG 0KT 4244 12332 SANDLER
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEDFORD OR 554 PM PDT THU JUL 9 2015 CAZ083-084-100130- NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY-NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES- 554 PM PDT THU JUL 9 2015 ...A STRONG THUNDERSTORM WILL AFFECT EASTERN SISKIYOU COUNTY... AT 554 PM PDT...A STRONG THUNDERSTORM WAS NEAR LAVA BEDS NATIONAL MONUMENT...OR 33 MILES SOUTH OF KLAMATH FALLS...MOVING NORTHWEST AT 5 MPH. WINDS IN EXCESS OF 40 MPH AND HALF INCH HAIL ARE POSSIBLE WITH THIS STORM. THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF EAST CENTRAL NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY AND CENTRAL NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES COUNTIES. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE. LAT...LON 4178 12146 4168 12156 4178 12178 4197 12151 TIME...MOT...LOC 0054Z 140DEG 5KT 4177 12153 SCHAAF
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEDFORD OR 614 PM PDT THU JUL 9 2015 ORZ028-029-100145- KLAMATH BASIN-SISKIYOU MOUNTAINS AND SOUTHERN OREGON CASCADES- 614 PM PDT THU JUL 9 2015 ...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL KLAMATH COUNTY... AT 613 PM PDT...A STRONG THUNDERSTORM WAS NEAR CHILOQUIN...OR 20 MILES NORTH OF KLAMATH FALLS...MOVING NORTHWEST AT 15 MPH. WINDS IN EXCESS OF 30 MPH AND HALF INCH HAIL ARE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... CHILOQUIN...COLLIER MEMORIAL STATE PARK...MODOC POINT...WOOD RIVER WETLAND AND HENZEL PARK AT AGENCY LAKE. FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE. THIS STORM 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. LAT...LON 4250 12163 4238 12172 4249 12208 4270 12190 TIME...MOT...LOC 0113Z 121DEG 12KT 4251 12179 SCHAAF
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
628 PM PDT THU JUL 9 2015
...TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
...DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0615 PM HEAVY RAIN 5 N ROGUE RIVER 42.51N 123.16W
07/09/2015 M1.44 INCH JACKSON OR TRAINED SPOTTER
SPOTTER REPORTS 1.44 INCHES OF RAINFALL
ASSOCIATED WITH A STORM THAT OCCURRED
BETWEEN 3:50 PM AND 6:15 PM. OBSERVER
LOCATION 3 MILES FROM WIMER.
&&
BSThe Reno radar (KRGX), 195 km away, was scanning. The volume nearest the first event began at 01:49 UTC.
1 thunderstorm wind. Local standard time, as filed.
The Juniper Creek RAWS recorded a gust to 67 mph sometime during this hour.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2015Every state in 2015This day in weather historyWarnings in California, July 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: 578706.