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 Pueblo, CO wrote its last area forecast discussion before the first event at Jul 21, 2:26 AM MST, 10 hours 34 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PUEBLO CO 326 AM MDT WED JUL 21 2004 .SHORT TERM... (TODAY AND TONIGHT) MAIN FCST CONCERNS TODAY WILL BE THUNDERSTORM COVERAGE AND ACCOMPANYING LOCALLY HEAVY RAIN ISSUES... FCST AREA WILL STILL BE POSITIONED UNDER THE NORTHERN PERIPHERY OF UPPER HIGH CENTERED ACROSS NRN AZ/NM. SHORTWAVE EVIDENT IN WV PICTURES ACROSS UT...WILL BE MOVING EASTWARD ACROSS NRN SECTIONS OF THE FCST AREA DURING THE DAY. LOW LVLS ARE STILL MOIST ACROSS THE LOWER ELEVATIONS OF THE FCST AREA...HOWEVER...HIGHER ELEVATIONS OF THE SAWATCH...LA GARITAS...AND THE EASTERN SAN JUAN MTNS ARE SEEING DEW POINTS A LITTLE LOWER THAN LAST NIGHT (IN THE UPPER 30S INSTEAD OF IN THE 40S LIKE PAST FEW NIGHTS)...SO THIS MAY BE THE BEGINNING OF A SLOW TREND OF DRIER AIR WORKING INTO THE REGION IN WESTERLY FLOW ALOFT. EXPECT THESE DEW POINTS WILL REBOUND SLIGHTLY AFTER DAWN AS TREND OF PAST SEVERAL DAYS HAS SHOWN...WITH READINGS BACK AROUND 40 BY AFTN. MEANWHILE...ACROSS SOUTHEAST PLAINS...NORTHERLY SURGE BEHIND DEPARTING LEE TROF...SHOULD MOVE INTO THE AREA BY LATER THIS MORNING. THIS SHOULD SET UP A CONVERGENCE ZONE ACROSS FAR EASTERN SECTIONS OF THE FCST AREA ALONG LEE TROF AXIS. DEW POINTS SHOULD STAY IN THE UPPER 50S/LOWER 60S ACROSS THIS REGION...WHICH WOULD YIELD CAPES OF AROUND 1000 J/KG. TOO LITTLE SHEAR TO BE CONCERNED WITH LONG LIVED SEVERE THUNDERSTORMS. HOWEVER... THUNDERSTORMS WILL BE SLOW MOVING DUE TO THE LIGHT WINDS ALOFT...AND COULD BE QUITE PULSEY (COULD BECOME BRIEFLY INTENSE WITH INITIAL DEVELOPMENT...THEN QUICKLY FALL APART)...SIMILAR TO YESTERDAY. PRECIPITABLE WATER VALUES RANGE FROM AROUND .9 TO 1.3 INCHES ACROSS SOUTHEAST PLAINS...WITH .5 TO .9 INCHES ACROSS WRN AREAS...AND DUE TO SLOW MOVEMENT OF STORMS...COULD BE COME LOCALLY HEAVY RAIN WITH THE MORE INTENSE STORMS. THIS POSES THE USUAL RISK FOR FLASH FLOODING PROBLEMS...MAINLY FOR BURN SCARS AND SUSCEPTIBLE URBAN AREAS. THANKFULLY...THIS SHOULDNT BE A WIDESPREAD OCCURRENCE TODAY...AND WILL NOT BE ISSUING ANY HIGHLIGHTS. PRECIPITABLE WATERS LOOK A LITTLE LOWER ACROSS INTERSTATE 25 CORRIDOR THAN YESTERDAY... WITH THUNDERSTORMS A BIT MORE HIGH BASED. THUS...ONLY 20 POPS FOR THIS REGION. HIGHER ELEVATIONS AND FAR EASTERN PLAINS WILL SEE BEST CHANCE FOR PRECIPITATION WHERE GRIDS HAVE 30 POPS PORTRAYED. TONIGHT...DOESNT LOOK QUITE AS IMPRESSIVE FOR NOCTURNAL PRECIPITATION TO CONTINUE PAST MIDNIGHT. BEST PARAMETERS FOR MCS DEVELOPMENT WILL BE WELL TO THE NORTH AND EAST OF THE FCST AREA. MODELS ARE PRINTING OUT SOME LIGHT AMOUNTS OF QPF...PROBABLY MORE IN RESPONSE TO EASTERLY UPSLOPE FLOW. THIS LOOKS OVERDONE GIVEN TREND OF PAST FEW NIGHTS. WILL HOLD ON TO SOME ISOLATED POPS BUT WILL REMOVE ALL THE SCATTERED POPS FOR POINTS FURTHER EAST...AS THUNDERSTORMS SHOULD BE FARTHER EAST ACROSS KS BY THIS TIME. -KT .LONG TERM... (THURSDAY THROUGH TUESDAY) THURSDAY...SHORTWAVE ROTATING AROUND LARGE LOW IN CENTRAL CANADA PUSHES COLD FRONT TOWARD THE AREA. MEANTIME...IN ADVANCE OF THE FRONT...TEMPERATURES SHOULD STILL BE QUITE WARM. BUMPED UP READING JUST A TAD ACROSS THE EASTERN PLAINS. TO BLEND IN WITH SURROUNDING OFFICES...HAVE PUT IN SOME ISOLATED POPS IN THE MORNING IN THE EASTERN PLAINS AND ADJACENT MOUNTAINS. WITH SURFACE HEATING AND MODERATE INSTABILITY...HAVE CHANCE POPS ACROSS ENTIRE CWFA IN THE AFTERNOON. THURSDAY NIGHT...THE HAMMER COMES DOWN AS SHORTWAVE TROUGH BRINGS SURGE OF COOLER AND MOISTER AIR TO THE EASTERN PLAINS. HAVE UPPED POPS TO LIKELY ACROSS THE EASTERN PLAINS AS THE EVENING PROGRESSES AND GUSTY NORTH TO NORTHEAST WINDS ENTER. ATMOSPHERE NOT ALL THAT UNSTABLE...BUT COULD GENERALLY WRING OUT AND FEW TENTHS OF AN INCH OF LIQUID...WITH SOME ISOLATED HIGHER AMOUNTS ACROSS THE EAST. FRIDAY...PROMISES TO BE A MOSTLY CLOUDY AND COOL DAY ACROSS THE EASTERN PLAINS AS STRONG PLAINS HIGH BRINGS MOIST EASTERLY FLOW TO OUR PLAINS. SOME CONVECTION FIRING UP IN THE AFTERNOON AREAWIDE. MODELS AGAIN NOT SHOWING VERY UNSTABLE AIR. PAINTED HIGHEST QPF ALONG THE EASTERN MOUNTAINS...WHERE ISOLATED HEAVY AMOUNTS OF RAIN COULD OCCUR. SATURDAY THROUGH MONDAY...AVN AND GFS SHOW A SLIGHT DRYING TREND AND SLIGHT WARM UP AS SURFACE HIGH OVER PLAINS MOVES TO THE EAST AND WEAKENS SOME. STILL HAVE SLIGHT CHANCE TO CHANCE POPS ACROSS THE AREA IN THE AFTERNOONS. SUNDAY AND MONDAY WE ARE IN MORE OF A NORTHWESTERLY FLOW ALOFT...WHICH GIVES A BIT MORE SHEAR...AND THE SLIGHTLY BETTER POTENTIAL FOR ISOLATED SEVERE CONVECTION. TUESDAY...MORE DRYING FORECAST FOR TUESDAY...BUT STILL ENOUGH MOISTURE TRAPPED IN THE TOP OF THE FLAT RIDGE FOR ISOLATED CONVECTION IN THE AFTERNOON AND EVENING HOURS. && .PUB WATCHES/WARNINGS/ADVISORIES...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PUEBLO CO 656 AM MDT WED JUL 21 2004 COZ058>089-093>099-221300- ALAMOSA VICINITY/CENTRAL SAN LUIS VALLEY BELOW 8500 FT- CANON CITY VICINITY/EASTERN FREMONT COUNTY- CENTRAL CHAFFEE COUNTY BELOW 9000 FT- COLORADO SPRINGS VICINITY/SOUTHERN EL PASO COUNTY/RAMPART RANGE BELOW 7500 FT-CROWLEY COUNTY- DEL NORTE VICINITY/NORTHERN SAN LUIS VALLEY BELOW 8500 FT- EASTERN KIOWA COUNTY-EASTERN LAS ANIMAS COUNTY- EASTERN SAN JUAN MOUNTAINS ABOVE 10000 FT- EASTERN SAWATCH MOUNTAINS ABOVE 11000 FT- LA GARITA MOUNTAINS ABOVE 10000 FT-LA JUNTA VICINITY/OTERO COUNTY- LAMAR VICINITY/PROWERS COUNTY-LAS ANIMAS VICINITY/BENT COUNTY- LEADVILLE VICINITY/LAKE COUNTY BELOW 11000 FT- NORTHERN EL PASO COUNTY/MONUMENT RIDGE/RAMPART RANGE BELOW 7500 FT- NORTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FEET- NORTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 8500 AND 11000 FT- NORTHWESTERN FREMONT COUNTY ABOVE 8500 FT-PIKES PEAK ABOVE 11000 FT- PUEBLO AND VICINITY/PUEBLO COUNTY BELOW 6300 FT- SAGUACHE COUNTY EAST OF CONTINENTAL DIVIDE BELOW 10000 FT- SAGUACHE COUNTY WEST OF CONTINENTAL DIVIDE BELOW 10000 FT- SOUTHERN SAN LUIS VALLEY- SOUTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FT- SOUTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 7500 AND 11000 FT- SPRINGFIELD VICINITY/BACA COUNTY- TELLER COUNTY/RAMPART RANGE ABOVE 7500 FT/PIKES PEAK BETWEEN 7500 AND 11000 FT- TRINIDAD VICINITY/WESTERN LAS ANIMAS COUNTY BELOW 7500 FT- UPPER RIO GRANDE VALLEY/EASTERN SAN JUAN MOUNTAINS BELOW 10000 FT- WALSENBURG VICINITY/UPPER HUERFANO RIVER BASIN BELOW 7500 FT- WESTERN CHAFFEE COUNTY BETWEEN 9000 AND 11000 FT- WESTERN KIOWA COUNTY- WESTERN MOSQUITO RANGE/EAST CHAFFEE COUNTY ABOVE 9000 FT- WESTERN MOSQUITO RANGE/EAST LAKE COUNTY ABOVE 11000 FT- WESTERN/CENTRAL FREMONT COUNTY BELOW 8500 FT- WET MOUNTAIN VALLEY BELOW 8500 FEET-WET MOUNTAINS ABOVE 10000 FT- WET MOUNTAINS BETWEEN 6300 AND 10000 FT- 656 AM MDT WED JUL 21 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL AND SOUTHEAST COLORADO. .DAY ONE...TODAY AND TONIGHT. ISOLATED TO SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS THE MOUNTAINS AROUND NOON...THEN SPREAD INTO THE PLAINS BY 200 PM. THUNDERSTORMS WILL BE MOST WIDESPREAD ACROSS THE MOUNTAINS...AND NEAR THE COLORADO KANSAS BORDER WHERE A LOW LEVEL BOUNDARY WILL BE LOCATED THIS AFTERNOON. THE MAIN THREAT FROM THUNDERSTORMS TODAY WILL BE LOCALLY HEAVY RAINFALL...WIND GUSTS UP TO 40 MPH...AND DANGEROUS CLOUD TO GROUND LIGHTNING. ONE OR TWO STORMS COULD BRIEFLY BECOME SEVERE...ESPECIALLY NEAR THE COLORADO KANSAS BORDER...PRODUCING HAIL AROUND 3/4 INCH IN DIAMETER. DUE TO THE SLOW MOVEMENT OF THUNDERSTORMS...RAINFALL ASSOCIATED WITH THE STRONGER STORMS COULD POSE A THREAT FOR LOCALIZED FLASH FLOODING...MAINLY FOR RUNOFF SENSITIVE AREAS SUCH AS THE OLD BURN SCARS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. ISOLATE TO SCATTERED THUNDERSTORMS WILL OCCUR THURSDAY AFTERNOON OVER THE ENTIRE AREA. A COLD FRONT WILL USHER IN COOLER AND MORE MOIST AIR TO THE SOUTHEAST MOUNTAINS AND PLAINS THURSDAY NIGHT AND FRIDAY. THIS WILL BRING AN INCREASED CHANCE OF SHOWERS AND THUNDERSTORMS FOR THE SOUTHEAST MOUNTAINS AND PLAINS. LOCALLY HEAVY RAIN AND FLASH FLOODING WILL BE A CONCERN...ESPECIALLY FOR RUNOFF SENSITIVE AREAS SUCH AS BURN SCARS AND URBAN AREAS. ONE OR TWO STORMS COULD BECOME SEVERE ACROSS THE SOUTHEAST PLAINS...WITH THE PRIMARY THREATS BEING LARGE HAIL AND DAMAGING WINDS POSSIBLE. ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE SATURDAY THROUGH TUESDAY. WITH GREATER WIND SHEAR ON SUNDAY AND MONDAY... THERE WILL BE A THREAT FOR ONE OR TWO SEVERE STORMS. THE PRIMARY THREATS FROM THE STORMS WILL BE LOCALLY HEAVY RAIN...LARGE HAIL AND DAMAGING WINDS. .SPOTTER INFORMATION STATEMENT... WEATHER CONDITIONS THAT MEET REPORTING CRITERIA FOR SPOTTERS WILL BE POSSIBLE BETWEEN 12 PM TODAY AND 9PM TONIGHT ACROSS THE SOUTH CENTRAL AND SOUTHEASTERN COLORADO. && METZE/KT
The national radar mosaic for the moment the first event began.
1 lightning. Local standard time, as filed.
While no humans were affected, a pig was struck by lightning and killed. The pig was a prized swine, scheduled to be entered in the 4-H competition at the Chaffee County Fair.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2004Every state in 2004This day in weather historyWarnings in Colorado, July 2004
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: 5413411.