During the mid afternoon, thunderstorms from east central Colorado moved into far west central Kansas. Hail reports ranged from quarter size to softball size in southern Greeley 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.
During the mid afternoon, thunderstorms from east central Colorado moved into far west central Kansas. Hail reports ranged from quarter size to softball size in southern Greeley 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 Aug 6, 1:22 PM MST, 23 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GOODLAND KS 222 PM MDT TUE AUG 6 2013 .SHORT TERM...(THIS EVENING THROUGH WEDNESDAY) ISSUED AT 222 PM MDT TUE AUG 6 2013 LATEST WV IMAGERY AND RAP ANALYSIS SHOWS NW FLOW STILL IN PLACE ACROSS THE NORTHERN AND CENTRAL CONUS...WITH A RIDGE CENTERED OVER TEXAS AND A WEAKENED CLOSED LOW OVER SOUTHERN ARIZONA. A VERY MOIST/UNSTABLE AIRMASS REMAINS IN PLACE OVER OUR CWA WITH TD VALUES ACROSS NW KANSAS IN THE MID 60S TO LOW 70S...AND SB CAPE VALUES IN THE 2000-4000 J/KG RANGE FROM THE WEST TO THE EAST. A SURFACE TROUGH IS CURRENTLY CENTERED ALONG THE KS/CO BORDER...WITH LOWER TD VALUES AND MUCH MORE STABLE AIRMASS TO THE WEST OF THIS FEATURE. THUNDERSTORMS HAVE ALREADY DEVELOPED ALONG THIS TROUGH AXIS IN OUR FAR SW CWA. I WOULD EXPECT ADDITIONAL THUNDERSTORM ACTIVITY TO INITIATE ALONG AND EAST OF THIS FEATURE THROUGH THIS AFTERNOON AND EVENING. LATEST HRRR INDICATED ACTIVITY FORMING AHEAD OF THIS AXIS AND FORMING INTO A CLUSTER/LINE AND SHIFTING TO THE SOUTH AND EAST. BASED ON NAM/GFS SUPPORTING BETTER COVERAGE IN THE SOUTH...WHICH IS IN LINE WITH SHORT RANGE GUIDANCE I KEPT THIS TREND. A COLD FRONT WILL APPROACH THE CWA TONIGHT...WITH ELEVATED INSTABILITY/GOOD MOISTURE LINGERING I DECIDED TO KEEP THUNDERSTORM MENTION THROUGH THE NIGHT. CONSIDERING STORM MOTION WITH INDIVIDUAL CELLS AND MOISTURE AVAILABILITY I AM CONCERNED WE COULD SEE LOCALIZED FLASH FLOODING THIS AFTERNOON/EVENING IN ADDITION TO SEVERE HAIL/WIND THREAT. COVERAGE IS A QUESTION THOUGH...WITH ANY CLUSTER/LINE LIKELY BEGINNING TO PROPAGATE QUICKER AS IT FORMS A COLD POOL IN OUR SOUTH. AS A RESULT WE MAY NOT ACTUALLY SEE AS WIDESPREAD OF A THREAT OF FLASH FLOODING TODAY/TONIGHT. WEDNESDAY...COLD FRONT WILL DROP SOUTH OF OUR CWA AND BE NEAR THE KS/OK BORDER BY LATE WED AFTERNOON. DEEP MOIST EASTERLY FLOW ALONG/NORTH OF THIS FEATURE COMBINED WITH INCREASING LARGE SCALE ASCENT WILL SUPPORT NUMEROUS TO WIDESPREAD SHOWERS/THUNDERSTORMS ACROSS OUR SOUTHERN CWA. I AM CONCERNED THAT THE BEST COVERAGE MAY BE TIED TO THE FRONT...WHICH WOULD PUT BETTER COVERAGE SOUTH OF OUR CWA. HOWEVER THERE IS ENOUGH MOISTURE/FORCING ALOFT TO SUPPORT HIGHER POPS ACROSS OUR SOUTHERN CWA IN THE AFTERNOON. A RESULT OF THICK CLOUD COVER AND CAA THROUGH THE DAY WILL BE HIGH TEMPERATURES WELL BELOW NORMAL (UPPER 60S TO MID 70S). PREVIOUS FORECAST HAD THIS COOLER TREND...SO ONLY MINOR ADJUSTMENTS MADE. WHILE WE MAY NEED A FLASH FLOOD WATCH FOR WED AFTERNOON DUE TO POSSIBLE TRAINING AND WIDESPREAD HEAVY RAIN COVERAGE IN THE SOUTH...I FELT IT WAS BEST TO CONCENTRATE PUBLIC ATTENTION ON ONGOING THUNDERSTORMS THIS AFTERNOON/EVENING TO AVOID CONFUSION. WE MAY NEED TO ISSUE A WATCH ON OVERNIGHT SHIFTS IF IT LOOKS LIKE OUR SOUTHERN CWA WILL REMAIN FAVORABLE FOR A LARGE SCALE FLASH FLOOD THREAT. .LONG TERM...(FRIDAY THROUGH MONDAY) ISSUED AT 220 AM MDT TUE AUG 6 2013 MODELS ARE IN REASONABLY GOOD AGREEMENT WITH THE SYNOPTIC SCALE PATTERN DURING THE EXTENDED PERIOD. MINOR DIFFERENCES EMERGE BY THE WEEKEND WHEN ECMWF IS STRONGER AND MORE AMPLIFIED THAN THE GFS WITH UPPER RIDGE THAT BUILDS OVER OUR AREA. OTHERWISE...TYPICAL DIFFERENCES EXIST WITH TIMING AND PLACEMENT OF SUBTLE SHORTWAVES IN THE MID/UPPER FLOW LEADING TO UNCERTAINTY AS TO WHEN THE MOST WIDESPREAD CONVECTION WILL OCCUR. BY EARLY FRIDAY...DEEP MOISTURE WILL HAVE SHIFTED EAST OF THE AREA AS RELATIVELY STRONG SHORTWAVE DEPARTS. COOL NORTHEASTERLY SURFACE FLOW EARLY SHOULD SHIFT TO SOUTHEASTERLY LATE FRIDAY CAUSING A RETURN OF LOW LEVEL MOISTURE AND HIGHER THETA-E VALUES. SOME CONVECTION MAY DEVELOP FRIDAY AND FRIDAY EVENING IN THE VICINITY OF LEE TROUGH / SURFACE CONVERGENCE OVER THE WESTERN PORTION OF THE AREA. SIGNIFICANT FORCING IS ABSENT AND A RELATIVELY DRY COLUMN WITH DEEP MIXED LAYER WILL LIKELY LIMIT COVERAGE OF CONVECTION. ON SATURDAY...MOISTURE INCREASES FURTHER AND MID/UPPER FLOW STRENGTHENS. LEE TROUGH SHARPENS AND MODELS INDICATE ONE OR TWO SMALL PERTURBATIONS IN THE WESTERLY FLOW ALOFT...ALL OF WHICH SUPPORTS A BETTER CHANCE OF CONVECTION ACROSS THE AREA. GFS IS MORE PROGRESSIVE FOR SUNDAY AND MONDAY SHOWING DEEP MIXING ACROSS THE WESTERN HALF OF THE AREA SUNDAY WITH CONVECTION CONFINED TO THE EASTERN PORTION OF THE AREA WHERE BETTER MOISTURE RESIDES. ECMWF HAS THE UPPER RIDGE AXIS FURTHER WEST AND THE GFS ENSEMBLE MEAN IS IN BETWEEN. && .AVIATION...(FOR THE 18Z TAFS THROUGH 18Z WEDNESDAY AFTERNOON) ISSUED AT 1144 AM MDT TUE AUG 6 2013 SCATTERED THUNDERSTORMS WILL DEVELOP ALONG TROUGH AXIS OVER NW KS/SW NE THIS AFTERNOON AND INCREASE IN COVERAGE THROUGH THIS EVENING AS THE ACTIVITY TRANSITIONS EAST. CURRENTLY COVERAGE IS STILL TOO MUCH OF A QUESTION AT EITHER TERMINAL WITH BETTER CHANCES FURTHER SOUTH AND EAST...SO I LIMITED MENTION TO VCTS. LATE TONIGHT FOG/STRATUS IS EXPECTED TO REDEVELOP...WITH LOWER CIGS/VIS AT BOTH TERMINALS BY SUNRISE. GUIDANCE CURRENTLY SUPPORTS MVFR CONDITIONS...HOWEVER CONSIDERING THE MOIST NATURE OF THE AIRMASS IF WINDS GO COMPLETELY CALM WE COULD SEE LOWER CONDITIONS DEVELOP. FOR NOW I CHOSE TO STAY IN LINE WITH CURRENT GUIDANCE...HOWEVER WE WILL NEED TO MONITOR THIS. && .GLD WATCHES/WARNINGS/ADVISORIES... KS...NONE. CO...NONE. NE...NONE. && SHORT TERM...DR LONG TERM...BRB AVIATION...DR
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GOODLAND KS 1056 AM MDT TUE AUG 6 2013 COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-071400- YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE KS-RAWLINS-DECATUR-NORTON- SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-GREELEY-WICHITA- DUNDY-HITCHCOCK-RED WILLOW- 1056 AM MDT TUE AUG 6 2013 /1156 AM CDT TUE AUG 6 2013/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHWEST NEBRASKA...NORTHWEST KANSAS AND EAST CENTRAL COLORADO. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON AND CONTINUE INTO THE OVERNIGHT HOURS. THE BEST THUNDERSTORM COVERAGE WILL BE EAST OF THE COLORADO STATE LINE. SOME OF THESE STORMS COULD BECOME SEVERE THIS AFTERNOON AND EVENING WITH LARGE HAIL AND DAMAGING WINDS THE MAIN THREATS. VERY SLOW STORM MOTION COMBINED WITH HEAVY RAINFALL FROM COULD LEAD TO A INCREASED THREAT FROM FLASH FLOODING THROUGH THE OVERNIGHT HOURS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SCATTERED TO NUMEROUS THUNDERSTORMS WILL CONTINUE WEDNESDAY INTO THURSDAY. THESE STORMS ARE NOT EXPECTED TO BE SEVERE. HOWEVER...VERY HEAVY RAINFALL WILL CONTINUE TO BE A LARGE THREAT FROM THESE STORMS. LOWER CHANCES OF THUNDERSTORMS WILL CONTINUE FROM FRIDAY INTO MONDAY. AT THIS TIME...WIDESPREAD SEVERE WEATHER IS NOT EXPECTED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND EVENING.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
136 PM MDT TUE AUG 06 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0134 PM HAIL 12 S ARAPAHOE 38.68N 102.17W
08/06/2013 M1.75 INCH CHEYENNE CO TRAINED SPOTTER
&&
JJMSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 231 PM MDT TUE AUG 6 2013 COZ092-062100- CHEYENNE COUNTY- 231 PM MDT TUE AUG 6 2013 ...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR CHEYENNE COUNTY IN EAST CENTRAL COLORADO... AT 228 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 8 MILES NORTH OF FIRSTVIEW...MOVING SOUTHWEST AT 5 MPH. PENNY TO NICKEL SIZE HAIL...WINDS TO 50 MPH AND LOCALLY HEAVY RAINFALL ARE EXPECTED WITH THIS STORM. && LAT...LON 3886 10257 3897 10262 3903 10241 3897 10235 TIME...MOT...LOC 2031Z 060DEG 4KT 3893 10251 THEDE
The Goodland radar (KGLD), 101 km away, was scanning. The volume nearest the first event began at 20:42 UTC.
5 hail. Local standard time, as filed.
Car windows broken out while traveling K-96 west into Kiowa County. Estimated time and location based on radar.
Baseball to softball size hail reported. Time estimated from radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2013Every state in 2013This day in weather historyWarnings in Kansas, August 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: 463868, 463869, 463870, 463871, 463872.