Thunderstorms formed in eastern Colorado during the afternoon producing large hail and strong wind gusts. A thunderstorm wind gust produced minor damage during the evening in Winona (Logan County).
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 GLD wrote it up.
Thunderstorms formed in eastern Colorado during the afternoon producing large hail and strong wind gusts. A thunderstorm wind gust produced minor damage during the evening in Winona (Logan County).
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 Jul 12, 5:12 PM CST, 3 hours 18 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GOODLAND KS 512 PM MDT SUN JUL 12 2009 .DISCUSSION... 135 PM MDT SUN JUL 12 2009 ACTIVE WEATHER LOOKS TO CONTINUE TONIGHT AS ANOTHER ROUND OF THUNDERSTORMS ARE EXPECTED TO DEVELOP IN COLORADO AND MOVE EAST ACROSS THE FORECAST AREA TONIGHT. SATELLITE IMAGERY SHOWS THUNDERSTORMS DEVELOPING OFF THE FRONT RANGE. ONE MAIN CONCERN LOOKS TO BE THE POTENTIAL FOR ANOTHER ROUND OF HEAVY RAIN. OVER THE PAST FEW EVENINGS...AROUND 1.75-2.00 OF RAINFALL HAS BEEN REPORTED EACH NIGHT OVER CHEYENNE COUNTY CO WITH LESSER AMOUNTS ELSEWHERE. WILL HAVE TO WATCH AGAIN TONIGHT FOR FLASH FLOODING AS PWATS AT 00Z ARE AROUND 1.51 --OVER 150 PERCENT OF NORMAL. GFS/NAM HAVE DIFFERENT SOLUTIONS WHERE THE HIGHEST PRECIPITATION AMOUNTS WILL OCCUR. GFS KEEPS PRECIP ALONG AND NORTH OF I-70 WHILE THE NAM PULLS IT SOUTH ALONG THE CO/KS BORDER. WILL CONTINUE MONITOR CI AND STORM MOTION AS WELL AS NEWEST MODEL RUNS TO GET A HANDLE WHERE HIGHEST PRECIP AMOUNTS WILL OCCUR AND MAKE FURTHER ADJUSTMENTS. MONDAY LOOKS TO BE THE HOTTEST DAY OF THE FORECAST PERIOD AS TEMPERATURES ARE EXPECTED TO WARM INTO THE MIDDLE UPPER 90S. MONDAY NIGHT INTO TUESDAY QUASI-ZONAL FLOW DAMPENS THE SURFACE HIGH AND NORTHWEST FLOW BRINGS RELIEF TO THE HIGH PLAINS. PREVIOUS FORECAST DESIGNED THE EXTENDED FORECAST WELL WITH A SERIES OF COLD FRONTS PUSHING THROUGH THE AREA GIVING WAY TO COOLER TEMPERATURES ALONG WITH AFTERNOON/EVENING THUNDERSTORMS. EXPECT HIGH TEMPERATURES TO WARM INTO THE UPPER 80S/LOWER 90S WITH LOWS IN THE LOWER 60S THROUGH THE END OF THE WORK WEEK. BURTIS && .AVIATION... 512 PM MDT SUN JUL 12 2009 FOR THE 00Z TAF...KGLD RADAR GETTING RETURNS ON THUNDERSTORMS IN EASTERN COLORADO AT THIS TIME MOVING EAST. EXPECT THESE STORMS TO MOVE INTO KGLD AND KMCK BEFORE 03Z. AFTER STORMS MOVE PAST SOME STRATUS AND LIGHT FOG SHOULD DEVELOP OVER KMCK. OTHERWISE MID LEVEL CLOUDS WILL PREVAIL GRADUALLY DECREASING TOWARD SUNRISE. SINCE THE WEATHER PATTERN WILL PERSIST EXPECT ANOTHER ROUND OF STORMS MONDAY AFTERNOON/EVENING. FS && .GLD WATCHES/WARNINGS/ADVISORIES... KS...NONE. NE...NONE. CO...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GOODLAND KS 1046 AM MDT SUN JUL 12 2009 COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-131215- YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE KS-RAWLINS-DECATUR-NORTON- SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-GREELEY-WICHITA- DUNDY-HITCHCOCK-RED WILLOW- 1046 AM MDT SUN JUL 12 2009 /1146 AM CDT SUN JUL 12 2009/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHWEST NEBRASKA...NORTHWEST KANSAS AND EAST CENTRAL COLORADO. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED THUNDERSTORMS WILL DEVELOP LATE THIS AFTERNOON IN EASTERN COLORADO MOVING EAST INTO WESTERN KANSAS AND SOUTHWEST NEBRASKA THIS EVENING. THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING LARGE HAIL...DAMAGING WINDS AND LOCALLY HEAVY RAINFALL. THE GREATEST THREAT SHOULD REMAIN ALONG AND NORTH OF HIGHWAY 40. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THUNDERSTORMS ARE POSSIBLE BOTH MONDAY AND TUESDAY AFTERNOON AND EVENING. STRONG WINDS AND LIGHTNING WILL BE THE MAIN THREATS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED LATE THIS AFTERNOON AND EVENING.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
700 PM MDT SUN JUL 12 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0655 PM HAIL 4 W CLARKVILLE 40.38N 102.70W
07/12/2009 E0.88 INCH YUMA CO TRAINED SPOTTER
&&
HENDERSONPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
713 PM MDT SUN JUL 12 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0707 PM TSTM WND GST 4 S BURLINGTON 39.25N 102.27W
07/12/2009 M61 MPH KIT CARSON CO ASOS
&&
HENDERSONSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 753 PM MDT SUN JUL 12 2009 KSZ014-130245- THOMAS- 853 PM CDT SUN JUL 12 2009 ...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR THOMAS COUNTY IN NORTHWEST KANSAS... AT 850 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR BREWSTER...AND MOVING EAST AT 40 MPH. THIS STORM WILL PRODUCE WIND GUSTS TO 45 MPH AT BREWSTER AND COLBY. THESE STORMS ARE NOT EXPECTED TO BECOME SEVERE. MENTZER
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GOODLAND KS
758 PM MDT SUN JUL 12 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0508 PM HAIL 13 SW JOES 39.49N 102.82W
07/12/2009 M2.00 INCH KIT CARSON CO CO-OP OBSERVER
0510 PM HAIL 15 N SEIBERT 39.52N 102.87W
07/12/2009 E2.00 INCH KIT CARSON CO PUBLIC
0530 PM HAIL 13 SW JOES 39.52N 102.85W
07/12/2009 M2.50 INCH KIT CARSON CO CO-OP OBSERVER
CARS DENTED AND DAMAGED SHINGLES
0538 PM HAIL 1 W YUMA 40.12N 102.74W
07/12/2009 E1.00 INCH YUMA CO TRAINED SPOTTER
0619 PM TSTM WND GST 9 NNE KIT CARSON 38.88N 102.73W
07/12/2009 M67.00 MPH CHEYENNE CO CO-OP OBSERVER
0631 PM HAIL ECKLEY 40.11N 102.49W
07/12/2009 E1.50 INCH YUMA CO TRAINED SPOTTER
0640 PM TSTM WND GST CHEYENNE WELLS 38.82N 102.35W
07/12/2009 E60.00 MPH CHEYENNE CO NWS EMPLOYEE
BLOWING DUST REPORTED VISIBILITY 2 MILES AND AT TIMES
HALF A MILE.
0655 PM HAIL 4 W CLARKVILLE 40.38N 102.70W
07/12/2009 E0.88 INCH YUMA CO TRAINED SPOTTER
0707 PM TSTM WND GST 4 S BURLINGTON 39.25N 102.27W
07/12/2009 M61.00 MPH KIT CARSON CO ASOS
&&
HENDERSONSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 803 PM MDT SUN JUL 12 2009 KSZ027-028-130230- LOGAN-WALLACE- 903 PM CDT SUN JUL 12 2009 ...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR LOGAN COUNTY IN WEST CENTRAL KANSAS AND WALLACE COUNTY IN WEST CENTRAL KANSAS... AT 900 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM ACROSS EASTERN WALLACE AND WESTERN LOGAN COUNTIES. THE STORM WAS MOVING EAST AT 30 MPH. PENNY TO NICKEL SIZE HAIL...DANGEROUS LIGHTNING...AND WINDS TO 50 MPH ARE EXPECTED WITH THIS STORM. MENTZER
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 815 PM MDT SUN JUL 12 2009 KSZ001-130245- CHEYENNE- 915 PM CDT SUN JUL 12 2009 ...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR CHEYENNE COUNTY IN NORTHWEST KANSAS... AT 914 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR ST. FRANCIS...AND MOVING EAST AT 15 MPH. WIND GUSTS TO 45 MPH...DANGEROUS LIGHTNING...AND BRIEF HEAVY RAIN WILL OCCUR WITH THIS STORM. MENTZER
The Goodland radar (KGLD), 52 km away, was scanning. The volume nearest the first event began at 02:31 UTC.
1 thunderstorm wind. Local standard time, as filed.
A power line was downed by strong thunderstorm winds.
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, July 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: 179413.