Heavy rainfall occurred over the same areas that experienced flash flooding the previous evening. An additional two inches of precipitation resulted in water flowing over US highway 40 west of Oakley, Kansas.
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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 GLD wrote it up.
Heavy rainfall occurred over the same areas that experienced flash flooding the previous evening. An additional two inches of precipitation resulted in water flowing over US highway 40 west of Oakley, Kansas.
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 Goodland, KS wrote its last area forecast discussion before the first event at Sep 8, 11:42 PM CST, 2 hours 1 minute earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GOODLAND KS 1142 PM MDT TUE SEP 8 2009 .DISCUSSION... 157 PM MDT TUE SEP 8 2009 A MID/UPPER TROUGH OVER THE NORTHERN ROCKIES/NORTHERN PLAINS REGION IS PROGGED TO TRANSLATE EAST TOWARD THE UPPER MISSISSIPPI VALLEY AREA ON WED WHILE A TRAILING COLD MOVES SOUTH IMPACTING THE CENTRAL HIGH PLAINS TONIGHT. THIS RAISES CONCERNS FOR ADDITIONAL RAIN OVER AREAS THAT RECEIVED 3-5 INCHES LAST NIGHT. 300-305K MIXING RATIOS/STRMLNS INDICATE 12-14 G/KG OF MOISTURE AVAILABLE WHILE PWATS ARE PROGGED TO BE IN EXCESS OF 150 PERCENT OF NORMAL ACROSS THE AREA TONIGHT. WITH STORM MOTIONS IN THE 5-7 KNOT RANGE ANY STORM THAT DEVELOPS WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY RAIN. THE PREVIOUS FORECAST HOISTED THE HIGHEST POPS ACROSS THE NORTHERN HALF OF THE CWA, AND THIS APPEARS TO BE IN LINE WITH THE STRONGER CONVERGENCE ASSOCIATED WITH THE H85 LLJ. THUNDERSTORM ACTIVITY MAY LINGER INTO THE MORNING HOURS, ESPECIALLY ACROSS THE SOUTH. MAINTAINED LOW PROBABILITIES FOR DEEP MOIST CONVECTION AFTER 21Z IN POST-FRONTAL UPSLOPE REGIME WITH SEASONABLE HIGHS IN THE UPPER 70S. ANY THUNDERSTORMS THAT MANAGE TO DEVELOP WED AFTERNOON SHOULD BE MORE DIURNALLY DRIVEN WHICH WAS HANDLED WELL IN THE PREVIOUS FORECAST. THU-FRI...SHORT WAVE RIDGING WILL ALLOW FOR A SEASONABLY WARM AND DRY DAY ACROSS THE CENTRAL HIGH PLAINS ON THU WITH MAXIMUM VALUES IN THE LOWER 80S. A ROBUST MID/UPPER TROUGH IS PROGGED TO DIG INTO THE NORTHERN PLAINS ON FRIDAY DRIVING A COLD FRONT SOUTH ACROSS THE TR-STATE AREA FRI. MAINTAINED MID POPS AFTER 18Z WITH ANTICIPATED FROPA. PREFER THE SLOWER ECMWF SOLUTION AS THE GFS HAS TRENDED MUCH FURTHER WEST COMPARED TO EARLIER RUNS AND THEREFORE TRENDED MAXIMUM TEMPERATURE VALUES UP. DAYS 4 THROUGH 7...A LARGE UPPER LOW IS PROGGED TO DEVELOP OVER THE CENTRAL PLAINS AT THE START OF THE PERIOD. THE GFS HAS LACKED RUN-TO-RUN CONSISTENCY, HOWEVER THE NCEP ENS MEAN ADDS SUPPORT TO A MORE NORTHEAST POSITION WITH MID/UPPER LOW SIMILAR TO THE ECMWF. THIS WILL LEAD TO COOL AND UNSETTLED WEATHER ACROSS THE CENTRAL HIGH PLAINS THROUGH THE PERIOD AND GENERALLY TRENDED MAXIMUM TEMPERATURES LOWER WHILE MAINTAINING PROBABILITIES FOR PRECIPITATION THROUGH MUCH OF THE PERIOD. MCGUIRE && .AVIATION... 1136 PM MDT TUE SEP 8 2009 FOR THE 06Z TAFS..CONVECTION ONGOING AT KGLD WILL GRADUALLY DIMINISH IN INTENSITY OVER THE NEXT FEW HOURS. IN ITS WAKE...LOW STRATUS WITH SOME REDUCTION IN VISBY PROGGED TO DEVELOP AT BOTH TERMINALS BY AROUND 10Z. EXPECT SLOW RETURN TO VFR CIGS/VIS BY AROUND 16Z WEDNESDAY WITH POTENTIAL FOR DIURNAL CONVECTION BY EARLY AFTERNOON. TEMPORAL/SPATIAL DETAILS TOO VAGUE AT THIS JUNCTURE TO WARRANT INCLUSION IN THIS TAF ISSUANCE. STRONGER AGREEMENT IN FOG/LOW STRATUS POTENTIAL NEAR THE END OF THIS TAF CYCLE AND HAVE INSERTED SCT CLOUDS FOR NOW. FOLTZ && .GLD WATCHES/WARNINGS/ADVISORIES... KS...FLASH FLOOD WATCH THROUGH THIS AFTERNOON FOR KSZ014-015-028-029. NE...NONE. CO...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GOODLAND KS 1037 AM MDT TUE SEP 8 2009 COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-091415- YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE KS-RAWLINS-DECATUR-NORTON- SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-GREELEY-WICHITA- DUNDY-HITCHCOCK-RED WILLOW- 1037 AM MDT TUE SEP 8 2009 /1137 AM CDT TUE SEP 8 2009/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHWEST NEBRASKA...NORTHWEST KANSAS AND EAST CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT SHOWERS AND THUNDERSTORMS WILL BE LIKELY TONIGHT AS A COLD FRONT SWEEPS THROUGH THE AREA. STORMS MAY BECOME SEVERE WITH LARGE HAIL AND DAMAGING WINDS. HEAVY RAINFALL WILL ALSO BE POSSIBLE WITH THESE STORMS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH WEDNESDAY MORNING WITH HEAVY RAINFALL AMOUNTS POSSIBLE. ALSO...DENSE FOG IS EXPECTED TO FORM ACROSS TRI-STATE AREA DURING THE MORNING HOURS POTENTIALLY REDUCING VISIBILITIES TO LESS THAN A MILE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED LATE THIS AFTERNOON AND TONIGHT.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
800 PM MDT TUE SEP 08 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0759 PM HAIL 16 NNE SEIBERT 39.51N 102.75W
09/08/2009 E0.88 INCH KIT CARSON CO PUBLIC
ESTIMATED 40 MPH WIND GUSTS ALONG WITH HEAVY RAIN.
&&
KJAMESPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
934 PM MDT TUE SEP 08 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0930 PM HAIL 14 S STRATTON 39.10N 102.60W
09/08/2009 E0.75 INCH KIT CARSON CO TRAINED SPOTTER
LOTS OF DIME SIZED HAIL ALONG WITH HEAVY RAIN AND WINDS
ESTIMATED AT 35 MPH
&&
FOLTZSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 1028 PM MDT TUE SEP 8 2009 KSZ013-027-090515- SHERMAN-WALLACE- 1028 PM MDT TUE SEP 8 2009 ...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR SHERMAN COUNTY IN NORTHWEST KANSAS AND WALLACE COUNTY IN WEST CENTRAL KANSAS... AT 1027 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 10 MILES SOUTHEAST OF HALE TO KANORADO TO WESKAN...AND MOVING EAST AT 15 MPH. SMALL HAIL...HEAVY RAINFALL AND WINDS TO 50 MPH ARE EXPECTED WITH THESE STORMS. FLOYD
The Goodland radar (KGLD), 71 km away, was scanning. The volume nearest the first event began at 07:43 UTC.
1 flash flood. Local standard time, as filed.
Six to eight inches of water was running across US Highway 40 between mile markers 62 and 64 west of Oakley.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2009Every state in 2009This day in weather historyWarnings in Kansas, September 2009
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: 187393.