1 lightning, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 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 Denver/Boulder, CO wrote its last area forecast discussion before the first event at Jun 25, 2:00 PM MST, 1 hour 30 minutes earlier.
NORTHEAST AND NORTH CENTRAL COLORADO AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DENVER COLORADO 300 PM MDT MON JUN 25 2001 SUBTROPICAL MOISTURE WHICH BROKE FROM THE ITCZ LAST WEEK CONTINUES UPON THE STATE TODAY AND THE REST OF THE SOUTHWEST UNITED STATES FOR THAT FACT. TONIGHT AND ESPECIALLY TOMORROW LOOK LIKE THE BEST PDS FOR THUNDERSTORMS THIS WEEK AS THE SOUTHERN END OF THIS MID AND UPPER LVL MOISTURE BATCH IS RIGHT NEAR THE WESTERN MEXICO BORDER WITH DRYNESS OVER SOUTHEASTERN PACIFIC. CURRENT SATELLITE AND GRIDS SHOWING SOME DEVELOPING CYCLONIC CURVATURE WITH THE NORTHERN ADVANCE OF THIS LAST BIT OF MOISTURE. THIS FEATURE MAY MOVE OVER EASTERN COLO IN GOOD TIMING WITH CANDIAN SURGE NOW EDGEING SOUTH INTO CENTRAL WYO ATTM. DIV-Q COUPLET MATCHES WELL WITH THE UPPER LOW OVER SOUTHERN ARIZONA ALONG WITH DEEPENING POT VORT IN THE DRY AIR OVER BAJA. THIS COMBINED WITH GOOD DIABATIC HEATING IS STARTING TO FIRE OFF STORMS OVER THE HIGHER TERRAIN AND SEE NO REASON WHY IT WONT CONTINUE FOR THE COLO NRN MTNS THIS EVENING WITH A FEW DRIFING OFF ONTO THE PLAINS. TOMORROW AFTERNOON LOOKS TO BE MORE FAVORABLE FOR STORMS. MESO-ETA HAS SFC FRONT WINDS TURNING SOUTHEASTERLY ON THE PLAINS BY MIDDAY. THIS MAY SET UP A DENVER CYCLONE AT THE SFC AS BETTER DYNAMICS INCREASE OVR THE NORTHERN REGION OF THE STATE DURING BEST HEATING. AT THIS TIME WILL NOT EXPECT STRATUS WITH SFC FRONT FOR THE OVERNIGHT PD BUT WILL BE NEED TO WATCHED BY LATER SHIFTS JUST IN CASE THERE IS BETTER COOLING FROM THE SFC THAN INDICATED. MESO-ETA THETA-E GRIDDS THEN HAS INCREASING MOISTURE IN THE THE 850-700MB LAYER THROUGH MIDDAY TUE OVR MTNS AND PLAINS AS DYNAMICS BEGING TO ENTER THE PICTURE. WITH WARM 700MB TEMPS... SCATTERED STORMS OVER MTS...FOOTHILLS URBAN CORRIDOR SHD SUFFICE WITH A LESSER CHANCE CLOSER TO KAN AND NEB BORDERS. FOR WED AND WED EVE...WEAK FLOW ALOFT RESIDES OVER THE REGION AS UPPER SHORT WAVE DISSOLVES INTO BUILDING RIDGE. 700MB TEMPS ONLY COOL SLIGHTLY FROM TUE WITH MOISTURE HANGING AROUND FOR ANOTHER DAY AND AVN DEPICTING CONTINUED EASTERLY SFC FLOW. IN XTNDD PRD...THURSDAY THROUGH MONDAY...MRF SENSES A LEE TROF FOR THURSDAY WITH WESTERLY SFC FLOW UNDER STRONG RIDGE. RETURN MOISTURE FROM THE SOUTHEAST ENTERS THE PLAINS AGAIN FOR FRIDAY PROBABLY DUE TO HEIGHT FALLS OVER GREAT BASIN FROM THE SWELTERING HEAT THERE. TYPICAL WEAK SUMMERTIME PATTERN UNDER STRONG RIDGE LOOKS TO CONTINUE THROUGH THE WEEKEND AND MONDAY. WILL NOT GO HOG WILD ON THE POPS BUT THERE SHOULD BE SOME CONVECTION IN THE VICINITY TO DEAL WITH EACH DAY WITH EARLY ADVENT OF MONSOON. MRF GUIDANCE TEMPS IN EXTENDED REALLY DONT GO TOO HOT DESPITE A 594 RIDGE OVR FOUR CORNERS. THIS PERHAPS SUPPORTS A CONTINUED CHANCE FOR AFTERNOON CLOUDS AND STORMS INSTEAD OF JUST PURE DRY. FREDIN DEN...NONE.
The Denver radar (KFTG), 64 km away, was scanning. The volume nearest the first event began at 22:31 UTC.
1 lightning. Local standard time, as filed.
Four golfers and one construction worker received minor injuries from a nearby lightning strike at the Broadlands Golf Course.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2001Every state in 2001This day in weather historyWarnings in Colorado, June 2001
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: 5252343.