Alert archive / Colorado / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 76, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 4, 2015, 11:00 PM MDT for Denver County, Jefferson County, Colorado. It was in force for 30 min. 6 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 4, 2015, 11:00 PM MDT (05:00 UTC)
- Expired
- Jun 4, 2015, 11:30 PM MDT
- In force
- 30 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 50.0 mph
Counties Denver County, CO, Jefferson County, CO
The radar
The Denver radar (KFTG), 42 km from the middle of the area, began a volume at 05:01 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 4, 11:04 PM MDT | HAIL 1 | 1 Nw Sheridan, CO | |
| Jun 4, 11:10 PM MDT | HAIL 1.25 | E Denver, CO | |
| Jun 4, 11:10 PM MDT | HAIL 1.5 | 3 Ssw Denver, CO | |
| Jun 4, 11:11 PM MDT | HAIL 0.88 | 1 Sw Denver, CO | HEAVY RAIN...1.25 INCHES IN LESS THAN ONE HOUR. |
| Jun 4, 11:15 PM MDT | HAIL 1 | 2 S Denver, CO | |
| Jun 4, 11:23 PM MDT | HAIL 1 | 2 Wnw Denver, CO |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched 5 storm reports to this severe thunderstorm warning; the first came 4 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Denver, CO (KDEN), launched 00:00Z, 5.0 hours before the alert went out and 154 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 945 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 2145 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -49 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
015
WUUS55 KBOU 050500
SVRBOU
COC031-059-050530-
/O.NEW.KBOU.SV.W.0076.150605T0500Z-150605T0530Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
1100 PM MDT THU JUN 4 2015
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN DENVER COUNTY IN NORTHEASTERN COLORADO...
EAST CENTRAL JEFFERSON COUNTY IN CENTRAL COLORADO...
* UNTIL 1130 PM MDT
* AT 1100 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
SOUTHEASTERN LAKEWOOD...OR 6 MILES SOUTHWEST OF DENVER...MOVING
NORTHEAST AT 15 MPH.
HAZARD...HALF DOLLAR SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...DAMAGE TO VEHICLES IS EXPECTED.
* LOCATIONS IMPACTED INCLUDE...
DENVER...EASTERN LAKEWOOD...NORTHERN ENGLEWOOD...SOUTHEASTERN WHEAT
RIDGE AND SHERIDAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3969 10516 3979 10504 3980 10497 3974 10488
3972 10488 3966 10497 3967 10498 3966 10501
3968 10501 3966 10502 3965 10504 3963 10502
3963 10505 3959 10506
TIME...MOT...LOC 0500Z 214DEG 12KT 3968 10507
HAIL...1.25IN
WIND...<50MPH
$$
RPK2 follow-up statements
040
WWUS55 KBOU 050515
SVSBOU
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
1115 PM MDT THU JUN 4 2015
COC031-059-050530-
/O.CON.KBOU.SV.W.0076.000000T0000Z-150605T0530Z/
DENVER CO-JEFFERSON CO-
1115 PM MDT THU JUN 4 2015
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM MDT
FOR SOUTHWESTERN DENVER AND EAST CENTRAL JEFFERSON COUNTIES...
AT 1115 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED OVER WESTERN
DENVER...MOVING NORTHEAST AT 15 MPH.
HAZARD...HALF DOLLAR SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...DAMAGE TO VEHICLES IS EXPECTED.
LOCATIONS IMPACTED INCLUDE...
DENVER...EASTERN LAKEWOOD...NORTHERN ENGLEWOOD...SOUTHEASTERN WHEAT
RIDGE AND SHERIDAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3969 10516 3979 10504 3980 10497 3974 10488
3972 10488 3966 10497 3967 10498 3966 10501
3968 10501 3966 10502 3965 10504 3963 10502
3963 10505 3959 10506
TIME...MOT...LOC 0515Z 214DEG 12KT 3972 10503
HAIL...1.25IN
WIND...<50MPH
$$
RPK442
WWUS55 KBOU 050532
SVSBOU
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
1132 PM MDT THU JUN 4 2015
COC031-059-050542-
/O.EXP.KBOU.SV.W.0076.000000T0000Z-150605T0530Z/
DENVER CO-JEFFERSON CO-
1132 PM MDT THU JUN 4 2015
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN DENVER AND EAST
CENTRAL JEFFERSON COUNTIES HAS EXPIRED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE. HOWEVER SMALL HAIL
AND HEAVY RAIN WILL OCCUR WITH THIS THUNDERSTORM.
LAT...LON 3969 10516 3979 10504 3980 10497 3974 10488
3972 10488 3966 10497 3967 10498 3966 10501
3968 10501 3966 10502 3965 10504 3963 10502
3963 10505 3959 10506
TIME...MOT...LOC 0530Z 214DEG 12KT 3972 10503
$$
RPKWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jun 4, 10:01 PM MDT, 59 minutes earlier.
Area forecast discussion, Jun 4, 10:01 PM MDT, 59 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1001 PM MDT THU JUN 4 2015 .UPDATE... ISSUED AT 946 PM MDT THU JUN 4 2015 SEVERE/FLOOD EVENT IN PROGRESS ACROSS THE FRONT RANGE FROM DENVER NORTHWARD TO LOVELAND WITH PERSISTENT AND STATIONARY STORMS. WORST AREAS ARE FROM LYONS TO BERTHOUD BUT CONTINUOUS NEW STORMS DEVELOPING OVER NORTH AND WEST DENVER. LATEST HRRR HAS STORMS POTENTIALLY GOING THROUGH 07-09Z OVER THESE SAMES AREAS SO EXPECT POTENTIAL FOR MAJOR FLOODING EVENT. ALSO STILL SEEING SOME LARGE HAIL REPORTS AS WELL ACROSS NORTH DENVER. && .SHORT TERM...(THIS EVENING THROUGH FRIDAY) ISSUED AT 308 PM MDT THU JUN 4 2015 STORMS JUST STARTING TO GET ROLLING THIS AFTERNOON WITH INITIAL ISOLATED STORMS OVER HIGHER TERRAIN OF CYS RIDGE AND FURTHER SOUTH INTO ELBERT COUNTY. A BIT OF CONVERGENCE BOUNDARY ACROSS SOUTHERN DOUGLAS AND INTO WESTERN ELBERT COUNTY WILL BE THE FOCUS FOR INITIAL STORMS AND POSSIBLE WEAK TORNADOES ALONG THE BOUNDARY. MOST OF THE FRONT RANGE AND ADJACENT PLAINS AND PALMER DIVIDE WILL BE UNDER A TORNADO WATCH THRU THE EARLY EVENING HOURS. GIVEN WEAK E-SE LOW LEVEL FLOW ABLE TO HOLD LOW LEVEL MOISTURE WITH SURFACE DEWPOINTS IN THE UPPER 50S TO LOWER 60S AND SURFACE BASED CAPES FROM 2000-3000J/KG. OVERALL STORM COVERAGE WILL BE LESS THIS AFTERNOON VS YESTERDAY AS AREA STILL UNDER SYNOPTIC SCALE SUBSIDENCE WITH WEAK RIDGING. STILL ANY STORMS THAT DO GO HAVE POTENTIAL TO BECOME SEVERE. POTENTIAL FOR STORMS TO GO WELL INTO THE NIGHT AS SEVERAL SHORT RANGE MODELS SHOWING REDEVELOPMENT LATER ON DUE TO SOME WEAK ASCENT MOVING INTO COLORADO AND CONTINUED LOW LEVEL EASTERLY FLOW. SHOULD SEE HIGHER COVERAGE OF STORMS ON FRIDAY AFTERNOON AND EVENING AS MOISTURE INCREASES AND STREAMS IN FROM THE DESERT SOUTHWEST AHEAD OF BIG LOW OFF CALIFORNIA COAST. PW VALUES INCREASE AGAIN TOWARDS NEAR AN INCH WITH BETTER POTENTIAL FOR HEAVY RAIN WITH STORMS. STILL AN ISOLATED SEVERE HAIL THREAT WITH CAPE VALUES STILL FROM 1000-2000J/KG. WILL HAVE HIGH CHANCE POPS BY FRIDAY AFTERNOON. .LONG TERM...(FRIDAY NIGHT THROUGH THURSDAY) ISSUED AT 308 PM MDT THU JUN 4 2015 THIS WEEKEND WILL FEATURE A LIGHT SW FLOW ALOFT WITH LITTLE CHANGE IN THE AIRMASS. IT DOES LOOK LIKE WE ARE ALTERNATING DAYS WITH SATURDAY BEING SLIGHTLY DRIER SO A BIT LESS ACTIVITY...THEN A WEAK COLD FRONT SUNDAY WILL BRING A LITTLE COOLING...INCREASED MOISTURE...AND PROBABLY MORE INSTABILITY AGAIN. WINDS ALOFT WILL BE LIGHTER...ALREADY EVIDENCED BY SLOWER STORM MOTIONS TODAY...SO WE WILL BE MORE PRONE TO SLOW-MOVING OR BACK-BUILDING STORMS. WITH WARM AND INCREASINGLY MOIST AIR ALOFT...IT WILL BE A BETTER ENVIRONMENT FOR FLASH FLOODING FROM THE STRONGER STORMS. STILL SOME SEVERE THREAT AS WELL...BUT LESS OF A RISK THAN THE HAIL FESTS OF THE PREVIOUS FEW DAYS. BY MON THE MOISTURE WILL LIKELY BE STARTING TO DECREASE AS THERE IS SOME RIDGING TO OUR WEST. GFS AND ECMWF HAVE HAD CONSISTENT DIFFERENCES WITH THE STRENGTH OF THIS...WITH THE EC BEING MORE AGGRESSIVE. LOOKS LIKE THE GFS IS TRENDING IN THIS DIRECTION. THE RIDGING CUTS OFF OUR MOISTURE SUPPLY AND PROVIDES A MODEST WESTERLY FLOW ALOFT. IT WILL BE WARMER WITH DRIER AIR ALOFT AGAIN...BUT STILL ENOUGH INSTABILITY AND WITH A BIT MORE SHEAR THERE WILL STILL BE SOME STORMS AND PROBABLY SOME RISK OF SEVERE STORMS IN THESE DRIER DAYS THROUGH NEXT WEEK. CURRENT CONSENSUS IS THAT THE MOST SUPPRESSED DAY WILL BE WEDNESDAY WHEN THE RIDGE AXIS IS OVER US...THEN WE START TO GET SOUTHWEST FLOW ALOFT FOR MORE SHEAR AND LEE TROUGH DEVELOPMENT. STILL LOOKING FAIRLY DRY FOR THURSDAY THOUGH. && .AVIATION...(FOR THE TAFS THROUGH 06Z FRIDAY EVENING) ISSUED AT 946 PM MDT THU JUN 4 2015 SEVERE STORMS EXPECTED OVER BJC/DEN AT LEAST THROUGH 05Z POSSIBLY UP TO 07-09ZS WITH LARGE HAIL AND STRONG WINDS. GRADUAL IMPROVEMENT LATER TNT BUT STRATUS/FOG A POSSIBILITY TOWARD DAYBREAK. ANOTHER ROUND OF STORMS AGAIN FOR FRIDAY AFTERNOON. && .HYDROLOGY... ISSUED AT 946 PM MDT THU JUN 4 2015 MAJOR FLOODING CONCERNS NOW WITH STATIONARY STORMS ACROSS DENVER...BOULDER...SOUTHEAST LARIMER COUNTIES. RAINFALL ESTIMATES FROM RADAR UP TO 8 INCHES OF RAIN FROM LYONS TO BERTHOUD. FLASH FLOOD EMERGENCY ISSUED FOR SOUTHEAST LARIMER AND NORTHEAST BOULDER COUNTY UNTIL 4 AM MDT. EXPECT SIGNIFICANT RISES ON RIVERS AND STREAMS IN THE NEXT 6-12 HOURS DOWNSTREAM OF CURRENT WATER ISSUES. && .BOU WATCHES/WARNINGS/ADVISORIES... NONE. && UPDATE...ENTREKIN SHORT TERM...ENTREKIN LONG TERM...GIMMESTAD AVIATION...ENTREKIN HYDROLOGY...ENTREKIN
Hazardous weather outlook, Jun 4, 10:30 AM MDT, 12 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1030 AM MDT THU JUN 4 2015 COZ030>051-051630- JACKSON COUNTY BELOW 9000 FEET- WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 1030 AM MDT THU JUN 4 2015 ...SEVERE STORMS POSSIBLE AGAIN TODAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT LOW LEVEL MOISTURE WILL REMAIN ENTRENCHED ACROSS THE FRONT RANGE I-25 URBAN CORRIDOR AND ADJACENT PLAINS OF COLORADO TODAY. THIS WILL KEEP A THREAT OF SEVERE THUNDERSTORMS IN THE FORECAST... ALTHOUGH THE COVERAGE OF STORMS WILL BE LESS THAN THAT OBSERVED YESTERDAY. MOST STORMS WILL PRODUCE BRIEF HEAVY RAIN...GUSTY WINDS...FREQUENT LIGHTNING...AND SMALL HAIL...BUT ISOLATED SEVERE STORMS WILL BE CAPABLE OF PRODUCING UP TO GOLF BALL SIZED HAIL AND DAMAGING WINDS. THERE IS ALSO A LOW RISK OF A BRIEF TORNADO ALONG A CONVERGENCE ZONE WHICH IS EXPECTED TO DEVELOP FROM ACROSS DOUGLAS AND ELBERT COUNTIES LATER THIS AFTERNOON. RIVERS AND STREAMS WILL CONTINUE TO RUN HIGH WITH SNOWMELT RUNOFF. MINOR FLOODING IS EXPECTED ALONG THE CACHE LA POUDRE AND SOUTH PLATTE RIVERS IN CENTRAL AND EASTERN WELD COUNTY. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THERE WILL BE SCATTERED LATE DAY SHOWERS AND THUNDERSTORMS FRIDAY THROUGH MONDAY AS MOISTURE IS PLENTIFUL FOR THE FORECAST AREA. TUESDAY AND WEDNESDAY WILL BE A BIT WARMER WITH LESS ACTIVITY. THROUGH THE WEEKEND THE STORMS WILL BRING A RISK OF SEVERE WEATHER WITH BIG HAIL THE MAIN THREAT. HEAVY RAINFALL IS ALSO POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED AFTER 2 PM. THE MOST LIKELY LOCATION FOR SEVERE WEATHER WILL BE FROM THE PALMER DIVIDE AREA ACROSS DOUGLAS AND ELBERT COUNTIES. ENTREKIN/GIMMESTAD
In the hours before
Local storm report, Jun 4, 5:35 PM MDT, 5 hours 25 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
535 PM MDT THU JUN 04 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0322 PM HAIL 9 N MATHESON 39.30N 103.98W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
0342 PM HAIL 20 NW LIMON 39.47N 103.95W
06/04/2015 M1.00 INCH ELBERT CO TRAINED SPOTTER
0346 PM HAIL 7 N MATHESON 39.27N 103.98W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
0352 PM HAIL 1 S AGATE 39.46N 103.95W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
0422 PM HAIL 6 ENE DENVER 39.76N 104.86W
06/04/2015 E0.88 INCH DENVER CO PUBLIC
0515 PM TORNADO 1 N SIMLA 39.16N 104.08W
06/04/2015 ELBERT CO BROADCAST MEDIA
MULTIPLE REPORTS OF A TORNADO ON THE GROUND.
0518 PM TORNADO 1 N SIMLA 39.16N 104.08W
06/04/2015 ELBERT CO BROADCAST MEDIA
THE SAME TORNADO TOUCHED DOWN FOR A SECOND TIME.
0531 PM TORNADO 2 WNW SIMLA 39.15N 104.12W
06/04/2015 ELBERT CO BROADCAST MEDIA
LARGE TORNADO ON THE GROUND.
&&
FCOOPERLocal storm report, Jun 4, 6:20 PM MDT, 4 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
620 PM MDT THU JUN 04 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0608 PM HAIL 1 NW WELLINGTON 40.71N 105.02W
06/04/2015 M1.25 INCH LARIMER CO TRAINED SPOTTER
0605 PM HAIL SIMLA 39.14N 104.08W
06/04/2015 M2.75 INCH ELBERT CO AMATEUR RADIO
0559 PM HAIL 2 W SIMLA 39.14N 104.12W
06/04/2015 M2.50 INCH ELBERT CO TRAINED SPOTTER
0558 PM HAIL 1 NE LOVELAND 40.43N 105.06W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0557 PM HAIL 6 N FORT COLLINS 40.64N 105.07W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0552 PM HAIL 1 N FORT COLLINS 40.57N 105.07W
06/04/2015 M1.25 INCH LARIMER CO AMATEUR RADIO
0545 PM TORNADO 1 WSW SIMLA 39.14N 104.10W
06/04/2015 ELBERT CO BROADCAST MEDIA
LARGE TORNADO REMAINED ON THE GROUND FROM 531-545 PM MDT.
0540 PM HAIL 1 W SIMLA 39.14N 104.10W
06/04/2015 E2.75 INCH ELBERT CO BROADCAST MEDIA
0531 PM TORNADO 2 WNW SIMLA 39.15N 104.12W
06/04/2015 ELBERT CO BROADCAST MEDIA
LARGE TORNADO ON THE GROUND.
0518 PM TORNADO 1 N SIMLA 39.16N 104.08W
06/04/2015 ELBERT CO BROADCAST MEDIA
THE SAME TORNADO TOUCHED DOWN FOR A SECOND TIME.
0515 PM TORNADO 1 N SIMLA 39.16N 104.08W
06/04/2015 ELBERT CO BROADCAST MEDIA
MULTIPLE REPORTS OF A TORNADO ON THE GROUND.
0422 PM HAIL 6 ENE DENVER 39.76N 104.86W
06/04/2015 E0.88 INCH DENVER CO PUBLIC
0352 PM HAIL 1 S AGATE 39.46N 103.95W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
0346 PM HAIL 7 N MATHESON 39.27N 103.98W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
0342 PM HAIL 20 NW LIMON 39.47N 103.95W
06/04/2015 M1.00 INCH ELBERT CO TRAINED SPOTTER
0322 PM HAIL 9 N MATHESON 39.30N 103.98W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
&&
FCOOPERLocal storm report, Jun 4, 8:28 PM MDT, 2 hours 32 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
828 PM MDT THU JUN 04 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0810 PM HAIL 1 NNE LONGMONT 40.19N 105.10W
06/04/2015 M1.25 INCH BOULDER CO TRAINED SPOTTER
0713 PM HAIL 1 N LYONS 40.24N 105.27W
06/04/2015 M2.00 INCH BOULDER CO COCORAHS
DAMAGED SHINGLES AND SHREDDED LEAVES REPORTED.
0703 PM HAIL NNE LYONS 40.22N 105.27W
06/04/2015 M2.50 INCH BOULDER CO COCORAHS
CARS DAMAGED.
0635 PM TORNADO 4 NW LONGMONT 40.21N 105.17W
06/04/2015 BOULDER CO TRAINED SPOTTER
0634 PM TORNADO 8 NW KUTCH 38.98N 103.98W
06/04/2015 ELBERT CO STORM CHASER
LARGE TORNADO ON THE GROUND SINCE 623 PM MDT
0633 PM HAIL 2 SSE LOVELAND 40.39N 105.06W
06/04/2015 M1.00 INCH LARIMER CO COCORAHS
0620 PM HAIL 2 N LOVELAND 40.45N 105.07W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0608 PM HAIL 1 NW WELLINGTON 40.71N 105.02W
06/04/2015 M1.25 INCH LARIMER CO TRAINED SPOTTER
0605 PM HAIL SIMLA 39.14N 104.08W
06/04/2015 M2.75 INCH ELBERT CO AMATEUR RADIO
0600 PM HAIL 1 W SIMLA 39.14N 104.10W
06/04/2015 E2.50 INCH ELBERT CO TRAINED SPOTTER
BROKEN WINDOWS REPORTED.
0559 PM HAIL 2 W SIMLA 39.14N 104.12W
06/04/2015 M2.50 INCH ELBERT CO TRAINED SPOTTER
0558 PM HAIL 1 NE LOVELAND 40.43N 105.06W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0557 PM HAIL 6 N FORT COLLINS 40.64N 105.07W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0552 PM HAIL 1 N FORT COLLINS 40.57N 105.07W
06/04/2015 M1.25 INCH LARIMER CO AMATEUR RADIO
0551 PM HAIL 2 N LOVELAND 40.45N 105.07W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0548 PM HAIL SSE FORT COLLINS 40.56N 105.07W
06/04/2015 M1.00 INCH LARIMER CO COCORAHS
0545 PM TORNADO 1 WSW SIMLA 39.14N 104.10W
06/04/2015 ELBERT CO BROADCAST MEDIA
LARGE TORNADO REMAINED ON THE GROUND FROM 531-545 PM MDT.
0540 PM HAIL 1 W SIMLA 39.14N 104.10W
06/04/2015 E2.75 INCH ELBERT CO BROADCAST MEDIA
0531 PM TORNADO 2 WNW SIMLA 39.15N 104.12W
06/04/2015 ELBERT CO BROADCAST MEDIA
LARGE TORNADO ON THE GROUND.
0518 PM TORNADO 1 N SIMLA 39.16N 104.08W
06/04/2015 ELBERT CO BROADCAST MEDIA
THE SAME TORNADO TOUCHED DOWN FOR A SECOND TIME.
0515 PM TORNADO 1 N SIMLA 39.16N 104.08W
06/04/2015 ELBERT CO BROADCAST MEDIA
MULTIPLE REPORTS OF A TORNADO ON THE GROUND.
0422 PM HAIL 6 ENE DENVER 39.76N 104.86W
06/04/2015 E0.88 INCH DENVER CO PUBLIC
0352 PM HAIL 1 S AGATE 39.46N 103.95W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
0346 PM HAIL 7 N MATHESON 39.27N 103.98W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
0342 PM HAIL 20 NW LIMON 39.47N 103.95W
06/04/2015 M1.00 INCH ELBERT CO TRAINED SPOTTER
0322 PM HAIL 9 N MATHESON 39.30N 103.98W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
&&
SENTREKILocal storm report, Jun 4, 9:12 PM MDT, 1 hour 48 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
912 PM MDT THU JUN 04 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0830 PM HAIL NNE LYONS 40.22N 105.27W
06/04/2015 M2.50 INCH BOULDER CO COCORAHS
1.85 INCHES OF RAINFALL FROM 715-830 MDT. CONTINUOUS HAIL
FOR OVER ONE HOUR. AVERAGE HAIL SIZE AROUND ONE INCH.
0830 PM HAIL 2 N LONGMONT 40.20N 105.11W
06/04/2015 M1.00 INCH BOULDER CO COCORAHS
0830 PM HAIL 2 NW LONGMONT 40.20N 105.14W
06/04/2015 M1.00 INCH BOULDER CO TRAINED SPOTTER
0810 PM HAIL 1 NNE LONGMONT 40.19N 105.10W
06/04/2015 M1.25 INCH BOULDER CO TRAINED SPOTTER
0713 PM HAIL 1 N LYONS 40.24N 105.27W
06/04/2015 M2.00 INCH BOULDER CO COCORAHS
DAMAGED SHINGLES AND SHREDDED LEAVES REPORTED.
0703 PM HAIL NNE LYONS 40.22N 105.27W
06/04/2015 M2.50 INCH BOULDER CO COCORAHS
CARS DAMAGED.
0646 PM HAIL 4 WNW BERTHOUD 40.33N 105.15W
06/04/2015 M2.00 INCH LARIMER CO COCORAHS
0635 PM TORNADO 4 NW LONGMONT 40.21N 105.17W
06/04/2015 BOULDER CO TRAINED SPOTTER
0634 PM TORNADO 8 NW KUTCH 38.98N 103.98W
06/04/2015 ELBERT CO STORM CHASER
LARGE TORNADO ON THE GROUND SINCE 623 PM MDT
0633 PM HAIL 2 SSE LOVELAND 40.39N 105.06W
06/04/2015 M1.00 INCH LARIMER CO COCORAHS
0620 PM HAIL 2 N LOVELAND 40.45N 105.07W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0608 PM HAIL 1 NW WELLINGTON 40.71N 105.02W
06/04/2015 M1.25 INCH LARIMER CO TRAINED SPOTTER
0605 PM HAIL SIMLA 39.14N 104.08W
06/04/2015 M2.75 INCH ELBERT CO AMATEUR RADIO
0600 PM HAIL 1 W SIMLA 39.14N 104.10W
06/04/2015 E2.50 INCH ELBERT CO TRAINED SPOTTER
BROKEN WINDOWS REPORTED.
0559 PM HAIL 2 W SIMLA 39.14N 104.12W
06/04/2015 M2.50 INCH ELBERT CO TRAINED SPOTTER
0558 PM HAIL 1 NE LOVELAND 40.43N 105.06W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0557 PM HAIL 6 N FORT COLLINS 40.64N 105.07W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0552 PM HAIL 1 N FORT COLLINS 40.57N 105.07W
06/04/2015 M1.25 INCH LARIMER CO AMATEUR RADIO
0551 PM HAIL 2 N LOVELAND 40.45N 105.07W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0548 PM HAIL SSE FORT COLLINS 40.56N 105.07W
06/04/2015 M1.00 INCH LARIMER CO COCORAHS
0545 PM TORNADO 1 WSW SIMLA 39.14N 104.10W
06/04/2015 ELBERT CO BROADCAST MEDIA
LARGE TORNADO REMAINED ON THE GROUND FROM 531-545 PM MDT.
0540 PM HAIL 1 W SIMLA 39.14N 104.10W
06/04/2015 E2.75 INCH ELBERT CO BROADCAST MEDIA
0531 PM TORNADO 2 WNW SIMLA 39.15N 104.12W
06/04/2015 ELBERT CO BROADCAST MEDIA
LARGE TORNADO ON THE GROUND.
0518 PM TORNADO 1 N SIMLA 39.16N 104.08W
06/04/2015 ELBERT CO BROADCAST MEDIA
THE SAME TORNADO TOUCHED DOWN FOR A SECOND TIME.
0515 PM TORNADO 1 N SIMLA 39.16N 104.08W
06/04/2015 ELBERT CO BROADCAST MEDIA
MULTIPLE REPORTS OF A TORNADO ON THE GROUND.
0422 PM HAIL 6 ENE DENVER 39.76N 104.86W
06/04/2015 E0.88 INCH DENVER CO PUBLIC
0352 PM HAIL 1 S AGATE 39.46N 103.95W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
0346 PM HAIL 7 N MATHESON 39.27N 103.98W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
0342 PM HAIL 20 NW LIMON 39.47N 103.95W
06/04/2015 M1.00 INCH ELBERT CO TRAINED SPOTTER
0322 PM HAIL 9 N MATHESON 39.30N 103.98W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
&&
FCOOPERLocal storm report, Jun 4, 9:45 PM MDT, 1 hour 15 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
945 PM MDT THU JUN 04 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0944 PM HAIL ARVADA 39.82N 105.11W
06/04/2015 M1.00 INCH JEFFERSON CO 911 CALL CENTER
0830 PM HAIL NNE LYONS 40.22N 105.27W
06/04/2015 M2.50 INCH BOULDER CO COCORAHS
1.85 INCHES OF RAINFALL FROM 715-830 MDT. CONTINUOUS HAIL
FOR OVER ONE HOUR. AVERAGE HAIL SIZE AROUND ONE INCH.
0830 PM HAIL 2 NW LONGMONT 40.20N 105.14W
06/04/2015 M1.00 INCH BOULDER CO TRAINED SPOTTER
0830 PM HAIL 2 N LONGMONT 40.20N 105.11W
06/04/2015 M1.00 INCH BOULDER CO COCORAHS
0810 PM HAIL 1 NNE LONGMONT 40.19N 105.10W
06/04/2015 M1.25 INCH BOULDER CO TRAINED SPOTTER
0713 PM HAIL 1 N LYONS 40.24N 105.27W
06/04/2015 M2.00 INCH BOULDER CO COCORAHS
DAMAGED SHINGLES AND SHREDDED LEAVES REPORTED.
0703 PM HAIL NNE LYONS 40.22N 105.27W
06/04/2015 M2.50 INCH BOULDER CO COCORAHS
CARS DAMAGED.
0646 PM HAIL 4 WNW BERTHOUD 40.33N 105.15W
06/04/2015 M2.00 INCH LARIMER CO COCORAHS
0635 PM HAIL ARVADA 39.82N 105.11W
06/04/2015 M1.00 INCH JEFFERSON CO TRAINED SPOTTER
0635 PM TORNADO 4 NW LONGMONT 40.21N 105.17W
06/04/2015 BOULDER CO TRAINED SPOTTER
0634 PM TORNADO 8 NW KUTCH 38.98N 103.98W
06/04/2015 ELBERT CO STORM CHASER
LARGE TORNADO ON THE GROUND SINCE 623 PM MDT
0633 PM HAIL 2 SSE LOVELAND 40.39N 105.06W
06/04/2015 M1.00 INCH LARIMER CO COCORAHS
0620 PM HAIL 2 N LOVELAND 40.45N 105.07W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0608 PM HAIL 1 NW WELLINGTON 40.71N 105.02W
06/04/2015 M1.25 INCH LARIMER CO TRAINED SPOTTER
0605 PM HAIL SIMLA 39.14N 104.08W
06/04/2015 M2.75 INCH ELBERT CO AMATEUR RADIO
0600 PM HAIL 1 W SIMLA 39.14N 104.10W
06/04/2015 E2.50 INCH ELBERT CO TRAINED SPOTTER
BROKEN WINDOWS REPORTED.
0559 PM HAIL 2 W SIMLA 39.14N 104.12W
06/04/2015 M2.50 INCH ELBERT CO TRAINED SPOTTER
0558 PM HAIL 1 NE LOVELAND 40.43N 105.06W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0557 PM HAIL 6 N FORT COLLINS 40.64N 105.07W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0552 PM HAIL 1 N FORT COLLINS 40.57N 105.07W
06/04/2015 M1.25 INCH LARIMER CO AMATEUR RADIO
0551 PM HAIL 2 N LOVELAND 40.45N 105.07W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0548 PM HAIL SSE FORT COLLINS 40.56N 105.07W
06/04/2015 M1.00 INCH LARIMER CO COCORAHS
0545 PM TORNADO 1 WSW SIMLA 39.14N 104.10W
06/04/2015 ELBERT CO BROADCAST MEDIA
LARGE TORNADO REMAINED ON THE GROUND FROM 531-545 PM MDT.
0540 PM HAIL 1 W SIMLA 39.14N 104.10W
06/04/2015 E2.75 INCH ELBERT CO BROADCAST MEDIA
0531 PM TORNADO 2 WNW SIMLA 39.15N 104.12W
06/04/2015 ELBERT CO BROADCAST MEDIA
LARGE TORNADO ON THE GROUND.
0518 PM TORNADO 1 N SIMLA 39.16N 104.08W
06/04/2015 ELBERT CO BROADCAST MEDIA
THE SAME TORNADO TOUCHED DOWN FOR A SECOND TIME.
0515 PM TORNADO 1 N SIMLA 39.16N 104.08W
06/04/2015 ELBERT CO BROADCAST MEDIA
MULTIPLE REPORTS OF A TORNADO ON THE GROUND.
0422 PM HAIL 6 ENE DENVER 39.76N 104.86W
06/04/2015 E0.88 INCH DENVER CO PUBLIC
0352 PM HAIL 1 S AGATE 39.46N 103.95W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
0346 PM HAIL 7 N MATHESON 39.27N 103.98W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
&&
SENTREKILocal storm report, Jun 4, 10:08 PM MDT, 52 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
1008 PM MDT THU JUN 04 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0944 PM HAIL ARVADA 39.82N 105.11W
06/04/2015 M1.00 INCH JEFFERSON CO 911 CALL CENTER
0944 PM HAIL ARVADA 39.82N 105.11W
06/04/2015 M1.50 INCH JEFFERSON CO TRAINED SPOTTER
0930 PM HAIL ARVADA 39.82N 105.11W
06/04/2015 M1.00 INCH JEFFERSON CO TRAINED SPOTTER
HAIL SIZE VARIED FROM PENNY TO QUARTER SIZE. HEAVY RAIN
REPORTED AS WELL.
0830 PM HAIL 2 N LONGMONT 40.20N 105.11W
06/04/2015 M1.00 INCH BOULDER CO COCORAHS
0830 PM HAIL 2 NW LONGMONT 40.20N 105.14W
06/04/2015 M1.00 INCH BOULDER CO TRAINED SPOTTER
0830 PM HAIL NNE LYONS 40.22N 105.27W
06/04/2015 M2.50 INCH BOULDER CO COCORAHS
1.85 INCHES OF RAINFALL FROM 715-830 MDT. CONTINUOUS HAIL
FOR OVER ONE HOUR. AVERAGE HAIL SIZE AROUND ONE INCH.
0810 PM HAIL 1 NNE LONGMONT 40.19N 105.10W
06/04/2015 M1.25 INCH BOULDER CO TRAINED SPOTTER
0713 PM HAIL 1 N LYONS 40.24N 105.27W
06/04/2015 M2.00 INCH BOULDER CO COCORAHS
DAMAGED SHINGLES AND SHREDDED LEAVES REPORTED.
0703 PM HAIL NNE LYONS 40.22N 105.27W
06/04/2015 M2.50 INCH BOULDER CO COCORAHS
CARS DAMAGED.
0646 PM HAIL 4 WNW BERTHOUD 40.33N 105.15W
06/04/2015 M2.00 INCH LARIMER CO COCORAHS
0635 PM HAIL ARVADA 39.82N 105.11W
06/04/2015 M1.00 INCH JEFFERSON CO TRAINED SPOTTER
0635 PM TORNADO 4 NW LONGMONT 40.21N 105.17W
06/04/2015 BOULDER CO TRAINED SPOTTER
0634 PM TORNADO 8 NW KUTCH 38.98N 103.98W
06/04/2015 ELBERT CO STORM CHASER
LARGE TORNADO ON THE GROUND SINCE 623 PM MDT
0633 PM HAIL 2 SSE LOVELAND 40.39N 105.06W
06/04/2015 M1.00 INCH LARIMER CO COCORAHS
0620 PM HAIL 2 N LOVELAND 40.45N 105.07W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0608 PM HAIL 1 NW WELLINGTON 40.71N 105.02W
06/04/2015 M1.25 INCH LARIMER CO TRAINED SPOTTER
0605 PM HAIL SIMLA 39.14N 104.08W
06/04/2015 M2.75 INCH ELBERT CO AMATEUR RADIO
0600 PM HAIL 1 W SIMLA 39.14N 104.10W
06/04/2015 E2.50 INCH ELBERT CO TRAINED SPOTTER
BROKEN WINDOWS REPORTED.
0559 PM HAIL 2 W SIMLA 39.14N 104.12W
06/04/2015 M2.50 INCH ELBERT CO TRAINED SPOTTER
0558 PM HAIL 1 NE LOVELAND 40.43N 105.06W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0557 PM HAIL 6 N FORT COLLINS 40.64N 105.07W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0552 PM HAIL 1 N FORT COLLINS 40.57N 105.07W
06/04/2015 M1.25 INCH LARIMER CO AMATEUR RADIO
0551 PM HAIL 2 N LOVELAND 40.45N 105.07W
06/04/2015 M1.00 INCH LARIMER CO TRAINED SPOTTER
0548 PM HAIL SSE FORT COLLINS 40.56N 105.07W
06/04/2015 M1.00 INCH LARIMER CO COCORAHS
0545 PM TORNADO 1 WSW SIMLA 39.14N 104.10W
06/04/2015 ELBERT CO BROADCAST MEDIA
LARGE TORNADO REMAINED ON THE GROUND FROM 531-545 PM MDT.
0540 PM HAIL 1 W SIMLA 39.14N 104.10W
06/04/2015 E2.75 INCH ELBERT CO BROADCAST MEDIA
0531 PM TORNADO 2 WNW SIMLA 39.15N 104.12W
06/04/2015 ELBERT CO BROADCAST MEDIA
LARGE TORNADO ON THE GROUND.
0518 PM TORNADO 1 N SIMLA 39.16N 104.08W
06/04/2015 ELBERT CO BROADCAST MEDIA
THE SAME TORNADO TOUCHED DOWN FOR A SECOND TIME.
0515 PM TORNADO 1 N SIMLA 39.16N 104.08W
06/04/2015 ELBERT CO BROADCAST MEDIA
MULTIPLE REPORTS OF A TORNADO ON THE GROUND.
0422 PM HAIL 6 ENE DENVER 39.76N 104.86W
06/04/2015 E0.88 INCH DENVER CO PUBLIC
0352 PM HAIL 1 S AGATE 39.46N 103.95W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
0346 PM HAIL 7 N MATHESON 39.27N 103.98W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
0342 PM HAIL 20 NW LIMON 39.47N 103.95W
06/04/2015 M1.00 INCH ELBERT CO TRAINED SPOTTER
0322 PM HAIL 9 N MATHESON 39.30N 103.98W
06/04/2015 M1.50 INCH ELBERT CO STORM CHASER
&&
SENTREKIThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 6:11 PM MDT | Severe Thunderstorm Warning | BOU | Boulder, Larimer, Weld | 34 min |
| Jun 4, 6:26 PM MDT | Tornado Warning | BOU | Elbert | 34 min |
| Jun 4, 6:32 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 28 min |
| Jun 4, 6:37 PM MDT | Tornado Warning | BOU | Boulder | 23 min |
| Jun 4, 6:38 PM MDT | Tornado Warning | BOU | Boulder, Larimer, Weld | 22 min |
| Jun 4, 6:58 PM MDT | Tornado Warning | BOU | Elbert, Lincoln | 32 min |
| Jun 4, 7:03 PM MDT | Tornado Warning | BOU | Boulder, Larimer | 27 min |
| Jun 4, 7:15 PM MDT | Flash Flood Warning | BOU | Boulder, Larimer, Weld | 3 hr |
| Jun 4, 7:30 PM MDT | Tornado Warning | BOU | Elbert | 30 min |
| Jun 4, 7:54 PM MDT | Severe Thunderstorm Warning | BOU | Boulder | 51 min |
| Jun 4, 8:40 PM MDT | River Flood Advisory | BOU | Boulder | 6 hr |
| Jun 4, 8:49 PM MDT | Severe Thunderstorm Warning | BOU | Boulder | 26 min |
| Jun 4, 9:13 PM MDT | Areal Flood Warning | BOU | Boulder, Larimer, Weld | 12 hr |
| Jun 4, 9:17 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Boulder, Broomfield, Weld | 43 min |
| Jun 4, 9:19 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver | 26 min |
| Jun 4, 9:42 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Broomfield, Denver, Jefferson | 33 min |
| Jun 4, 9:47 PM MDT | Areal Flood Advisory | BOU | Adams, Denver, Jefferson | 3 hr |
| Jun 4, 9:58 PM MDT | Flash Flood Warning | BOU | Boulder, Larimer | 6 hr |
| Jun 4, 10:39 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver | 22 min |
| Jun 4, 11:16 PM MDT | Areal Flood Advisory | BOU | Denver, Jefferson | 3 hr |
| Jun 5, 12:42 AM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Denver, Jefferson | 33 min |
| Jun 5, 12:48 AM MDT | Areal Flood Advisory | BOU | Adams, Denver, Jefferson | 117 min |
| Jun 5, 12:52 AM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 23 min |
| Jun 5, 1:09 AM MDT | Severe Thunderstorm Warning | BOU | Elbert | 36 min |
| Jun 5, 1:45 AM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver | 30 min |
| Jun 5, 2:02 AM MDT | Severe Thunderstorm Warning | BOU | Elbert | 28 min |
| Jun 5, 2:21 AM MDT | Areal Flood Advisory | BOU | Arapahoe, Elbert, Lincoln, Washington | 3 hr |
| Jun 5, 2:26 AM MDT | Tornado Warning | BOU | Elbert | 34 min |
| Jun 5, 3:03 AM MDT | Flash Flood Warning | BOU | Elbert, Lincoln | 3 hr |
| Jun 5, 4:27 AM MDT | Flash Flood Watch | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 13 more | 18 hr |
| Jun 5, 6:12 AM MDT | River Flood Warning | BOU | Adams | 38 hr |
| Jun 5, 9:10 AM MDT | River Flood Warning | BOU | Morgan | 11 days |
| Jun 5, 9:10 AM MDT | River Flood Warning | BOU | Logan, Morgan, Washington | 4 days |
| Jun 5, 12:52 PM MDT | Tornado Warning | BOU | Arapahoe, Douglas | 23 min |
| Jun 5, 1:08 PM MDT | Tornado Warning | BOU | Arapahoe, Douglas, Elbert | 37 min |
| Jun 5, 1:25 PM MDT | Areal Flood Advisory | BOU | Adams, Arapahoe, Douglas | 3 hr |
| Jun 5, 1:48 PM MDT | Tornado Warning | BOU | Adams, Arapahoe | 42 min |
| Jun 5, 2:17 PM MDT | Tornado Warning | BOU | Arapahoe, Douglas, Elbert | 43 min |
| Jun 5, 3:04 PM MDT | Tornado Warning | BOU | Adams, Arapahoe | 26 min |
| Jun 5, 3:27 PM MDT | Tornado Warning | BOU | Adams, Arapahoe | 33 min |
| Jun 5, 3:41 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln, Washington | 49 min |
| Jun 5, 4:03 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan | 42 min |
| Jun 5, 4:21 PM MDT | River Flood Warning | BOU | Boulder | 65 hr |
| Jun 5, 4:31 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 29 min |
| Jun 5, 4:34 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln, Washington | 26 min |
| Jun 5, 4:36 PM MDT | Areal Flood Advisory | BOU | Lincoln, Washington | 3 hr |
| Jun 5, 4:44 PM MDT | Tornado Warning | BOU | Washington | 31 min |
| Jun 5, 4:58 PM MDT | Tornado Warning | BOU | Adams, Washington | 32 min |
| Jun 5, 5:24 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Washington | 39 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 2015Every severe thunderstorm warning in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.