Alert archive / Colorado / Flash Flood Warnings in 2013
Flash Flood Warning 66, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this flash flood warning at Sep 12, 2013, 10:52 PM MDT for Boulder County, Jefferson County, Colorado. It was in force for 5 hr. 1 report 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
- Sep 12, 2013, 10:52 PM MDT (04:52 UTC)
- Expired
- Sep 13, 2013, 3:45 AM MDT
- In force
- 5 hr
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Emergency
- Flash flood emergency
- Flood severity
- None
Counties Boulder County, CO, Jefferson County, CO
The radar
The Denver radar (KFTG), 66 km from the middle of the area, began a volume at 04:54 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 |
|---|---|---|---|
| Sep 12, 11:30 PM MDT | FLASH FLOOD | Boulder, CO | 36 TURNPIKE IS 3 FEET UNDER WATER AT THE INTERSECTION OF US 36 AND FOOTHILLS PARKWAY |
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 one storm report to this flash flood warning; the first came 38 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, 4.9 hours before the alert went out and 175 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
- 175 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 680 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -116 m²/s²
- 0-3 km storm-relative helicity
- -58 m²/s²
- Significant tornado parameter
- -0.1
- Supercell composite
- -1.1
The text
As transmitted, in the capitals the NWS used until 2016.
525
WGUS55 KBOU 130452
FFWBOU
COC013-059-130945-
/O.NEW.KBOU.FF.W.0066.130913T0452Z-130913T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
1052 PM MDT THU SEP 12 2013
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN JEFFERSON COUNTY IN NORTHEAST COLORADO...
BOULDER COUNTY IN NORTHEAST COLORADO...
* UNTIL 345 AM MDT
* AT 1045 PM MDT...WIDESPREAD AND LIFE THREATENING FLASH FLOODING
WAS OCCURRING ACROSS BOULDER AND NORTHERN JEFFERSON COUNTIES.
...THIS IS A FLASH FLOOD EMERGENCY FOR BOULDER AND NORTHERN
JEFFERSON COUNTY. SEEK HIGHER GROUND NOW! THIS IS LIFE THREATENING
SITUATION!
NEW EVACUATIONS HAVE BEEN ORDERED FROM THE MOUTH OF BOULDER CANYON
ALONG BROADWAY...AND THEN PEARL TO MARINE.
WIDESPREAD FLASH FLOODING WAS CAUSING NUMEROUS AND WIDESPREAD ROAD
CLOSURES WERE REPORTED ACROSS ALL OF BOULDER COUNTY...AS WELL AS
NORTHWESTERN JEFFERSON COUNTY. TRAVEL IS VIRTUALLY
IMPOSSIBLE...STAY OFF THE ROADS AND STAY SAFE.
LEYDEN RESERVOIR IN NORTHWESTERN ARVADA IS ALSO RELEASING FLOWS AT A
HIGH RATE...WITH EVACUATIONS NOW OCCURRING DOWNSTREAM OF THE DAM TO
ALKIRE STREET.
DOPPLER RADAR INDICATED RAIN HAD DIMINISHED SOMEWHAT IN
INTENSITY...BUT ANOTHER HALF INCH OF RAIN CAN STILL BE EXPECTED IN
THE NEXT HOUR OR TWO. THIS WILL CONTINUE TO PRODUCE FLASH
FLOODING.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WESTERN ARVADA...WESTERN WESTMINSTER...BOULDER...WESTERN
LONGMONT...SOUTHWESTERN BROOMFIELD...LAFAYETTE...NORTHWESTERN
GOLDEN...LOUISVILLE...SUPERIOR...LYONS...NEDERLAND...JAMESTOWN...
WARD...SALINA...NIWOT...ELDORA...ALLENSPARK...WALLSTREET...ROCKY
FLATS...BRAINARD LAKE...WHITE RANCH OPEN SPACE...ELDORADO
SPRINGS...CRISMAN...GOLD HILL...SUMMERVILLE...PEACEFUL VALLEY...
RAYMOND...MEEKER PARK...SUNSHINE AND LONGS PEAK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. THIS IS AN EXTREMELY DANGEROUS AND LIFE
THREATENING SITUATION. DO NOT ATTEMPT TO TRAVEL UNLESS YOU ARE
FLEEING AN AREA SUBJECT TO FLOODING OR UNDER AN EVACUATION ORDER.
TRAVEL IS NEARLY IMPOSSIBLE.
THIS IS A LIFE THREATENING SITUATION...INCLUDING PEOPLE ALONG
BOULDER CREEK IN THE CITY OF BOULDER...IN THE FOURMILE BURN
AREA...IN BOULDER CANYON....LEFTHAND CANYON...AND ST VRAIN CANYON
THROUGH THE TOWN OF LYONS...ALONG SOUTH BOULDER CREEK THROUGH
ELDORADO SPRINGS...AND COAL CREEK CANYON. HEAVY RAINFALL WILL CAUSE
EXTENSIVE AND SEVERE FLASH FLOODING. NUMEROUS ROADS AND BRIDGES HAVE
BEEN WASHED OUT.
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS
HARDER TO RECOGNIZE THE DANGERS OF FLOODING.
&&
LAT...LON 4009 10510 3990 10514 3991 10516 3990 10516
3989 10514 3990 10511 3982 10510 3972 10527
3986 10540 3993 10541 3993 10565 4010 10561
4026 10563 4026 10515
$$
BARJENBRUCH3 follow-up statements
407
WGUS75 KBOU 130537
FFSBOU
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
1137 PM MDT THU SEP 12 2013
COC013-059-130945-
/O.CON.KBOU.FF.W.0066.000000T0000Z-130913T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JEFFERSON CO-BOULDER CO-
1137 PM MDT THU SEP 12 2013
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 AM MDT FOR
NORTHERN JEFFERSON AND BOULDER COUNTIES...
...THIS IS A FLASH FLOOD EMERGENCY FOR BOULDER AND NORTHERN
JEFFERSON COUNTIES ESPECIALLY FOURMILE CREEK AND BOULDER
CANYON INTO THE CITY OF BOULDER...
AT 1131 PM MDT...LOCAL LAW ENFORCEMENT REPORTED SEVERE FLASH
FLOODING ALONG FOURMILE CREEK. A VERY LARGE FLOW OF WATER WAS COMING
OUT OF EMERSON GULCH IN THE FOURMILE BURN AREA AND DOWN FOURMILE
CREEK. THIS WILL CAUSE ANOTHER SUDDED RISE IN FOURMILE CREEK AND
BOULDER CANYON OVER THE NEXT HOUR. LARGE AMOUNTS OF DEBRIS AND
VEHICLES WERE BEING CARRIED IN THIS FLOOD WAVE. WATER ALONG BOULDER
CREEK IN THE CITY OF BOULDER WILL BE INCREASING THROUGH MIDNIGHT...
AND THIS NEW FLOOD WAVE WILL LIKELY REACH BOULDER SHORTLY AFTER
MIDNIGHT.
THE WATER CURRENTLY COMING INTO BOULDER WILL BRING EVEN HIGHER FLOWS
THAN THOSE CURRENTLY EXPERIENCED...WITH A WALL OF WATER POSSIBLE IN
BOULDER CANYON. IF YOU ARE NEAR BOULDER CREEK DO NOT TRY TO
OUTRUN THE FLOOD WATERS...MOVE TO HIGHER GROUND NOW!
EXTENSIVE FLASH FLOODING ALSO CONTINUES ACROSS THE REMAINDER OF
BOULDER AND NORTHERN JEFFERSON COUNTIES.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WESTERN ARVADA...WESTERN WESTMINSTER...BOULDER...WESTERN LONGMONT...
SOUTHWESTERN BROOMFIELD...LAFAYETTE...NORTHWESTERN GOLDEN...
LOUISVILLE...SUPERIOR...LYONS...NEDERLAND...JAMESTOWN...WARD...
SALINA...NIWOT...ELDORA...ALLENSPARK...WALLSTREET...ROCKY FLATS...
BRAINARD LAKE...WHITE RANCH OPEN SPACE...ELDORADO SPRINGS...
CRISMAN...GOLD HILL...SUMMERVILLE...PEACEFUL VALLEY...RAYMOND...
MEEKER PARK...SUNSHINE AND LONGS PEAK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. THIS IS AN EXTREMELY DANGEROUS AND LIFE
THREATENING SITUATION. DO NOT ATTEMPT TO TRAVEL UNLESS YOU ARE
FLEEING AN AREA SUBJECT TO FLOODING OR UNDER AN EVACUATION ORDER.
THIS IS A LIFE THREATENING SITUATION FOR PEOPLE ALONG BOULDER CREEK
IN THE CITY OF BOULDER...IN THE FOURMILE BURN AREA...AND IN BOULDER
CANYON. HEAVY RAINFALL WILL CAUSE EXTENSIVE AND SEVERE FLASH
FLOODING OF CREEKS AND STREAMS FROM THE FOURMILE BURN AREA DOWNSTREAM
THROUGH THE CITY OF BOULDER. SOME DRAINAGE BASINS IMPACTED INCLUDE
BOULDER CREEK...FOURMILE CREEK...GOLD RUN...FOURMILE CANYON CREEK...
AND WONDERLAND CREEK. SEVERE DEBRIS FLOWS CAN ALSO BE ANTICIPATED
ACROSS ROADS. ROADWAYS AND BRIDGES MAY BE WASHED AWAY IN PLACES. IF
YOU ENCOUNTER FLOOD WATERS...CLIMB TO SAFETY.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
&&
LAT...LON 4009 10510 3990 10514 3991 10516 3990 10516
3989 10514 3990 10511 3982 10510 3972 10527
3986 10540 3993 10541 3993 10565 4010 10561
4026 10563 4026 10515
$$
GIMMESTAD855
WGUS75 KBOU 130741
FFSBOU
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
141 AM MDT FRI SEP 13 2013
COC013-059-130945-
/O.CON.KBOU.FF.W.0066.000000T0000Z-130913T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JEFFERSON CO-BOULDER CO-
141 AM MDT FRI SEP 13 2013
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 AM MDT FOR
NORTHERN JEFFERSON AND BOULDER COUNTIES...
...THIS IS A FLASH FLOOD EMERGENCY FOR BOULDER AND NORTHERN
JEFFERSON COUNTIES...
AT 131 AM MDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING
CONTINUING IN NORTHERN JEFFERSON AND BOULDER COUNTIES.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WESTERN ARVADA...WESTERN WESTMINSTER...BOULDER...WESTERN LONGMONT...
SOUTHWESTERN BROOMFIELD...LAFAYETTE...NORTHWESTERN GOLDEN...
LOUISVILLE...SUPERIOR...LYONS...NEDERLAND...JAMESTOWN...WARD...
SALINA...NIWOT...ELDORA...ALLENSPARK...WALLSTREET...ROCKY FLATS...
BRAINARD LAKE...WHITE RANCH OPEN SPACE...ELDORADO SPRINGS...
CRISMAN...GOLD HILL...SUMMERVILLE...PEACEFUL VALLEY...RAYMOND...
MEEKER PARK...SUNSHINE AND LONGS PEAK.
THE FLOOD SURGES COMING DOWN BOULDER CANYON AND LEFTHAND CANYONS
HAVE DIMINISHED...AND THE PEAK OF THE FLOOD IS MOVING ONTO THE
PLAINS. NEW EVACUATIONS WERE RECENTLY ORDERED FOR ELDORADO SPRINGS.
HIGHWAY 119 IS NOW FLOODED ON THE SOUTHWEST SIDE OF LONGMONT FROM
LEFTHAND CREEK. EXTENSIVE FLOODING IS OCCURRING ON ALMOST ALL
STREAMS IN THE WARNING AREA WITH MAJOR IMPACTS IN
BOULDER...LONGMONT...AND LYONS. WHILE STREAM LEVELS ARE FALLING IN
THE FOOTHILLS...LIFE THREATENING FLOODING IS STILL OCCURRING AND
MANY ROADS ARE CLOSED. STAY OUT OF FLOODED AREAS...AND HEED LOCAL
OFFICIALS ADVICE TO AVOID TRAVEL IF POSSIBLE. ADDITIONAL FLOODING
WILL DEVELOP QUICKLY IF RAINFALL INTENSIFIES AGAIN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. THIS IS AN EXTREMELY DANGEROUS AND LIFE
THREATENING SITUATION. DO NOT ATTEMPT TO TRAVEL UNLESS YOU ARE
FLEEING AN AREA SUBJECT TO FLOODING OR UNDER AN EVACUATION ORDER.
THIS IS A LIFE THREATENING SITUATION FOR PEOPLE ALONG BOULDER CREEK
IN THE CITY OF BOULDER...IN THE FOURMILE BURN AREA...AND IN BOULDER
CANYON. HEAVY RAINFALL WILL CAUSE EXTENSIVE AND SEVERE FLASH
FLOODING OF CREEKS AND STREAMS FROM THE FOURMILE BURN AREA DOWNSTREAM
THROUGH THE CITY OF BOULDER. SOME DRAINAGE BASINS IMPACTED INCLUDE
BOULDER CREEK...FOURMILE CREEK...GOLD RUN...FOURMILE CANYON CREEK...
AND WONDERLAND CREEK. SEVERE DEBRIS FLOWS CAN ALSO BE ANTICIPATED
ACROSS ROADS. ROADWAYS AND BRIDGES MAY BE WASHED AWAY IN PLACES. IF
YOU ENCOUNTER FLOOD WATERS...CLIMB TO SAFETY.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
&&
LAT...LON 4009 10510 3990 10514 3991 10516 3990 10516
3989 10514 3990 10511 3982 10510 3972 10527
3986 10540 3993 10541 3993 10565 4010 10561
4026 10563 4026 10515
$$
GIMMESTAD973
WGUS75 KBOU 130933
FFSBOU
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
333 AM MDT FRI SEP 13 2013
COC013-059-130945-
/O.CON.KBOU.FF.W.0066.000000T0000Z-130913T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JEFFERSON CO-BOULDER CO-
333 AM MDT FRI SEP 13 2013
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 AM MDT FOR
NORTHERN JEFFERSON AND BOULDER COUNTIES...
AT 323 AM MDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING
CONTINUING IN BOULDER AND NORTHERN JEFFERSON COUNTIES.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WESTERN ARVADA...WESTERN WESTMINSTER...BOULDER...WESTERN LONGMONT...
SOUTHWESTERN BROOMFIELD...LAFAYETTE...NORTHWESTERN GOLDEN...
LOUISVILLE...SUPERIOR...LYONS...NEDERLAND...JAMESTOWN...WARD...
SALINA...NIWOT...ELDORA...ALLENSPARK...WALLSTREET...ROCKY FLATS...
BRAINARD LAKE...WHITE RANCH OPEN SPACE...ELDORADO SPRINGS...
CRISMAN...GOLD HILL...SUMMERVILLE...PEACEFUL VALLEY...RAYMOND...
MEEKER PARK...SUNSHINE AND LONGS PEAK.
ON BOULDER CREEK IN THE CITY OF BOULDER WATER HAD RECEDED ABOUT ONE
FOOT FROM THE CREST AROUND MIDNIGHT. SIGNIFICANT FLOODING WAS STILL
OCCURRING AND WATER LEVELS WERE OUT OF THE BANKS AND STEADY
UPSTREAM. THE CREST WAS PROCEEDING DOWNSTREAM...WITH SIGNIFICANT
FLOODING OF LOW LYING AREAS AND ROADS EAST OF BOULDER TO NEAR ERIE.
FLOODING WAS ALSO CONTINUING ON SOUTH BOULDER CREEK FROM ELDORADO
SPRINGS THROUGH EASTERN BOULDER AND ALONG ROCK CREEK AND COAL CREEK
FROM JEFFERSON COUNTY DOWNSTREAM TO LAFAYETTE AND ERIE.
IN NORTHERN BOULDER COUNTY THE CREST ON THE ST VRAIN RIVER WAS NEAR
HYGIENE...AND WATER CONTINUED TO RISE ON THE ST VRAIN RIVER IN
LONGMONT. LEFTHAND CREEK WAS ALSO FLOODING ACROSS HIGHWAY 119
SOUTHWEST OF LONGMONT...WHILE IT HAD FALLEN SLIGHTLY BUT WAS STILL
HIGH IF LEFTHAND CANYON. THESE FLOOD WATERS WILL CONTINUE TO MOVE
DOWNSTREAM AND ADDITIONAL ROAD CLOSURES MAY BE NECESSARY IN EASTERN
BOULDER COUNTY AND POSSIBLY INTO WELD COUNTY OVER THE NEXT SEVERAL
HOURS.
EVEN WHERE THE STREAMS HAVE CRESTED...MANY REMAIN OUT OF THEIR BANKS
AND ARE STILL DANGEROUS. STAY AWAY FROM FLOODED AREAS AND ERODED
STREAM BANKS. CHECK WITH LOCAL AUTHORITIES FOR EVACUATION STATUS AND
ROAD CLOSURES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES WILL
CONTINUE THIS MORNING. ADDITIONALLY... COUNTRY ROADS AND FARMLANDS
ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE
SUBJECT TO FLOODING.
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 4009 10510 3990 10514 3991 10516 3990 10516
3989 10514 3990 10511 3982 10510 3972 10527
3986 10540 3993 10541 3993 10565 4010 10561
4026 10563 4026 10515
$$
GIMMESTADWhat forecasters said that day
The local office's own words before this flash flood 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 flash flood warning went out at Sep 12, 9:28 PM MDT, 1 hour 24 minutes earlier.
Area forecast discussion, Sep 12, 9:28 PM MDT, 1 hour 24 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DENVER/BOULDER CO 928 PM MDT THU SEP 12 2013 .UPDATE...FLOODING RAINS CONTINUE OVER THE FRONT RANGE FOOTHILLS AS WELL AS OVER THE PALMER DIVIDE EAST TO THE KANSAS BORDER. WHILE OTHER AREAS HAVE DECREASE IN RAIN LATELY....THE RAIN AREA OVER THE PALMER DIVIDE IS BEGINNING TO MOVE NORTH...AND IS EXPECTED TO CONTINUE TO DO SO INTO THE DENVER AREAS AND NORTH. RAIN RATES CONTINUE TO VARY BETWEEN TWO TENTHS OF AN INCH TO AN INCH PER HOUR. AS THIS AREA OF RAIN MOVES NORTH...THIS MAY PUSH RAIN RATES HIGHER TO 1-2 INCHES AN HOUR. && .AVIATION...WATCHING THE PALMER DIVIDE AREA OF RAIN AS IT PUSHES NORTH. RECENT IMPROVEMENTS IN CEILINGS AND VISIBILITY ARE EXPECTED TO GO DOWN AGAIN AS IT MORE NORTH. THEREFORE CONTINUED LOW CEILINGS AND VISIBILITIES WITH RAIN AND STRATUS WILL BE THE MAIN STORY THROUGH THE NIGHT. IMPROVEMENTS ARE EXPECTED FRIDAY MORNING AS SLIGHTLY DRIER AIR MAKES ITS WAY INTO THE AREA. CONTINUED EASTERLY TO SOUTHEASTERLY SURFACE WINDS...LESS THAN 12 KNOTS. && .HYDROLOGY...MULTIPLE FLOOD AND FLASH FLOOD WARNINGS IN EFFECT WITH SIGNIFICANT IMPACTS. RELIEF NOT EXPECTED UNTIL FRIDAY LATE MORNING. RAIN EXPECTED FRIDAY AGAIN...BUT AT LESS INTENSITY. && .PREV DISCUSSION... /ISSUED 332 PM MDT THU SEP 12 2013/ SHORT TERM...MAJOR FLOODING EVENT CONTINUES ACROSS FOOTHILLS AND MUCH OF THE URBAN CORRIDOR AS SOUTHERLY FLOW ALOFT PERSISTS IN PUSHING MOISTURE INTO THE AREA. GPS MEASURED PRECIPITABLE WATER VALUES HOLDING THEIR OWN AROUND 1.25 INCHES OVER DENVER AREA WITH HIGHER AMOUNTS NORTH AND SOUTH /PUEBLO A WHOPPING 1.42 AND CLIMBING AT 21Z/. RAIN WILL GO THROUGH MUCH OF THE NIGHT IN THE FOOTHILLS AND URBAN CORRIDOR WITH LESS COVERAGE OVER THE FAR NORTHEAST PLAINS AND GRAND/JACKSON/SUMMIT COUNTIES. DPROG/DT OF HRRR MODEL SHOWS THAT ITS LATER RUNS HAVE BACKED OFF ON TOTAL PRECIPITATION AMOUNTS ALTHOUGH THEY ARE STILL SUBSTANTIAL... ESPECIALLY GIVEN THE CURRENT CONDITIONS. THAT MODEL AS WELL AS RAP STARTING TO FOCUS SOME HEAVIER PRECIPITATION FURTHER SOUTH IN THE FOOTHILLS AS WELL AS ATOP THE PALMER DIVIDE IN WESTERN ELBERT COUNTY FOR TONIGHT. THESE AREAS ALREADY IN THE FLASH FLOOD WATCH WHICH IS NOT BEING CHANGED IN EITHER TIME OR AREAL EXTENT AT THIS TIME. MODELS SUGGESTING THE PRECIPITATION FOCUS MAY BE FURTHER EAST ON THE PLAINS TOMORROW AS QG LIFT ASSOCIATED WITH GREAT BASIN LOW AFFECTS THOSE AREAS. LONG TERM...SLIGHTLY DRIER AND MORE SUBSIDENT AIRMASS TO SPREAD ACROSS REGION FRIDAY EVENING AS SHORTWAVE MOVES EAST OF COLORADO. THIS WILL RESULT IN A DECREASE IN SHOWERS AND THUNDERSTORMS... ESPECIALLY ALONG THE FOOTHILLS WHERE LOCAL DOWNSLOPE WINDS WILL LIMIT ACTIVITY. BRIEF MODERATE RAINFALL WILL BE POSSIBLE... ESPECIALLY NEAR THE FOOTHILLS. ON SATURDAY...UPPER TROUGH MOVES INTO NORTHERN GREAT BASIN WITH FLOW ALOFT BECOMING WESTERLY. AIRMASS TO BECOME DRIER AS NOTED BY A DECREASE IN PRECIPITABLE WATER VALUES. STILL SOME CHANCE FOR SHOWERS AND THUNDERSTORMS BY AFTERNOON...PARTICULARLY ACROSS MOUNTAINS AS WELL AS IN AND NEAR FOOTHILLS...ONCE AIRMASS BECOMES UNSTABLE. AIRMASS TO BECOME SLIGHTLY WARMER WITH HIGHS WARMING TO NEAR 80 DEGREES ACROSS THE PLAINS. SHOWERS AND STORMS TO DECREASE DURING THE EVENING WITH THE CHANCE FOR SHOWERS CONTINUING OVERNIGHT WITH SOME INCREASE IN MID LEVEL QG ASCENT. FOR SUNDAY...UPPER TROUGH TO MOVE ACROSS WYOMING WITH INCREASING MID LEVEL QG ASCENT OVER COLORADO. FRONT TO MOVE ACROSS PLAINS DURING THE MORNING WITH INCREASING UPSLOPE. LIFT AND UPSLOPE COMBINING WITH DECENT MOISTURE TO INCREASE CHANCES FOR SHOWERS AND THUNDERSTORMS...ESPECIALLY IN AND NEAR FOOTHILLS WHERE UPSLOPE WILL BE BEST. MODERATE TO BRIEF HEAVY RAIN WILL BE POSSIBLE DURING THE AFTERNOON. FLOOD THREAT APPEARS LOW AT THIS TIME. TEMPERATURES TO COOL ABOUT 5 DEGREES CELSIUS ACROSS THE PLAINS...WITH LITTLE CHANGE OVER MOUNTAINS. ON MONDAY...TROUGH TO MOVE INTO NORTHERN AND CENTRAL PLAINS WITH AXIS OVER EASTERN WYOMING. FLOW ALOFT BECOMES NORTHWESTERLY AS SLIGHTLY DRIER AND MORE SUBSIDENT AIR MOVES INTO COLORADO. THUS THE CHANCE FOR SHOWERS AND THUNDERSTORMS TO DECREASE...WITH THE BEST CHANCE ACROSS THE MOUNTAINS. TEMPERATURES LOOK TO WARM BACK TO NEAR 80 DEGREES ACROSS THE PLAINS. FOR THE LATER DAYS...TUESDAY THROUGH THURSDAY...WEST TO SOUTHWEST FLOW ALOFT TO PREVAIL AS UPPER TROUGH MOVES INTO THE PACIFIC NORTHWEST. AIRMASS TO BECOME DRIER AND SLIGHTLY WARMER THOUGH ENOUGH MOISTURE FOR A SLIGHT CHANCE OF AFTERNOON AND EVENING THUNDERSTORMS ACROSS THE HIGH COUNTRY. SOME COOLING NOTED THURSDAY AS MODELS SHOW FRONT MOVING ACROSS PLAINS. AIRMASS LOOKS STABLE...WILL KEEP THE SLIGHT CHANCE OF STORMS OVER THE HIGH COUNTRY. AVIATION...STRATUS...SHOWERS AND SOME FOG THE MAIN STORY FOR MOST OF THE PERIOD WITH FREQUENT LOW CEILINGS AND VISIBILITIES. SOME IMPROVEMENT IN THESE PARAMETERS LATER FRIDAY MORNING AND PRESENT THINKING SUGGESTS LESS RAIN AT THE TERMINALS BY FRIDAY AFTERNOON. EASTERLY WINDS THROUGH TONIGHT AND MOST OF FRIDAY. HYDROLOGY...MOST AREAS IN THE FOOTHILLS...CERTAINLY NORTH OF INTERSTATE 70...ARE EXPERIENCING SIGNIFICANT FLOODING IMPACTS FROM THE RECENT RAINS. WITH MORE PRECIPITATION EXPECTED OVERNIGHT SITUATION WILL IMPROVE LITTLE. LESS PRECIPITATION ACTIVITY IN THE BURN AREAS FRIDAY. && .BOU WATCHES/WARNINGS/ADVISORIES... FLASH FLOOD WATCH UNTIL 6 AM MDT FRIDAY FOR COZ035-036-038>041- 043. && SHORT TERM...ET LONG TERM....D-L UPDATE/AVIATION...KRIEDERMAN
Hazardous weather outlook, Sep 12, 11:05 AM MDT, 11 hours 47 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1105 AM MDT THU SEP 12 2013 COZ030>051-131715- 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- 1105 AM MDT THU SEP 12 2013 ...MAJOR FOOTHILLS AND URBAN CORRIDOR FLOODING EVENT ONGOING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT PERIODS OF MODERATE TO HEAVY RAIN WILL CONTINUE THROUGH THE AFTERNOON AND OVERNIGHT IN MANY AREAS EAST OF THE MOUNTAINS ...ESPECIALLY IN AND CLOSE TO THE FOOTHILLS. MAJOR AMOUNTS OF RAIN OVER THE LAST SEVERAL DAYS HAVE SATURATED SOILS IN MANY FOOTHILL AND URBAN CORRIDOR LOCATIONS AND ADDITIONAL RAINFALL IN THESE LOCATIONS TODAY AND TONIGHT WILL ONLY EXACERBATE AN ALREADY SERIOUS SITUATION. THE HIGH PARK AND FOUR MILE BURN AREAS WILL BE ESPECIALLY SUSCEPTIBLE TO THE HEAVY RAINS. LOCATIONS IN JACKSON AND GRAND COUNTIES AND THE FAR NORTHEAST PLAINS STILL HAVE A CHANCE OF RAIN TODAY AND TONIGHT BUT THE THREAT OF FLOODING IN THOSE LOCATIONS IS LOWER. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SHOWERS AND THUNDERSTORMS CAN AGAIN BE EXPECTED ON FRIDAY WITH LOCALLY HEAVY RAINFALL POSSIBLE. SOMEWHAT DRIER AND WARMER CONDITIONS ARE EXPECTED ON SATURDAY. THE CHANCE FOR SHOWERS AND THUNDERSTORMS WILL INCREASE AGAIN ON SUNDAY ALONG THE FRONT RANGE WITH THE PASSAGE OF A COLD FRONT. DRIER AND WARMER CONDITIONS SHOULD RETURN TO THE REGION NEXT WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. HOWEVER REPORTS OF HEAVY RAINFALL AND FLASH FLOODING WOULD BE APPRECIATED.
In the hours before
Local storm report, Sep 12, 5:09 PM MDT, 5 hours 43 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE DENVER CO
509 PM MDT THU SEP 12 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0600 PM HEAVY RAIN 5 NE NORTHGLENN 39.96N 104.91W
09/11/2013 M2.10 INCH ADAMS CO NWS EMPLOYEE
SINCE NOON YESTERDAY
0628 PM HEAVY RAIN ERIE 40.03N 105.05W
09/11/2013 M2.50 INCH WELD CO BROADCAST MEDIA
PAST TWO HOURS.
0650 PM FLASH FLOOD 2 SE NIWOT 40.08N 105.13W
09/11/2013 BOULDER CO NWS EMPLOYEE
WATER AT A DEPTH OF 9 TO 12 INCHES DEEP AND 50 FEET WIDE
WAS RUNNING OVER THE INTERSECTION OF 95TH STREET AND
LOOKOUT ROAD.
0700 PM HEAVY RAIN 5 NE BOULDER 40.08N 105.18W
09/11/2013 M4.03 INCH BOULDER CO TRAINED SPOTTER
1.41 INCHES PAST 12 HOURS
0803 PM HEAVY RAIN 1 NW LOUISVILLE 39.98N 105.15W
09/11/2013 M1.10 INCH BOULDER CO TRAINED SPOTTER
PAST HOUR
0830 PM HEAVY RAIN 7 E FORT COLLINS 40.56N 104.93W
09/11/2013 M1.05 INCH WELD CO TRAINED SPOTTER
PAST 25 MINUTES
0846 PM HEAVY RAIN SUPERIOR 39.93N 105.15W
09/11/2013 M1.90 INCH BOULDER CO TRAINED SPOTTER
1.3 INCHES SINCE 5 PM
0914 PM HEAVY RAIN LYONS 40.22N 105.27W
09/11/2013 M3.50 INCH BOULDER CO BROADCAST MEDIA
PAST 24 HOURS
0920 PM HEAVY RAIN 2 SE BOULDER 40.01N 105.22W
09/11/2013 M3.35 INCH BOULDER CO MESONET
PAST 6 HOURS
1000 PM HEAVY RAIN 5 E BOULDER 40.03N 105.16W
09/11/2013 M6.29 INCH BOULDER CO TRAINED SPOTTER
2.35 INCHES PAST 3 HOURS. THE 6.29 INCHES IS THE TOTAL SO
FAR SINCE 5 PM MONDAY
1000 PM HEAVY RAIN 13 NW GOLDEN 39.87N 105.39W
09/11/2013 M2.31 INCH JEFFERSON CO TRAINED SPOTTER
PAST 16 HOURS. BEAVER CREEK IS BANKFULL. COAL CREEK IS
OVERBANK AND WASHING OVER HWY 72 AT TWIN SPRUCE
1000 PM FLASH FLOOD BOULDER 40.03N 105.25W
09/11/2013 BOULDER CO EMERGENCY MNGR
3RD ST AND CANYON AND EASTBOUND BASELINE AT FOOTHILLS
HAVE PARTIAL CLOSURES DUE TO DEBRIS. FLOODING AT 9TH AND
BALSAM.
1025 PM FLASH FLOOD 9 S BOULDER 39.90N 105.25W
09/11/2013 JEFFERSON CO EMERGENCY MNGR
FLOODING AND DEBRIS HIGHWAY 72 WEST OF HIGHWAY 93 AT THE
BASE OF COAL CREEK CANYON
1038 PM FLASH FLOOD 5 W BOULDER 40.03N 105.35W
09/11/2013 BOULDER CO TRAINED SPOTTER
INGRAM GULCH IS CLOSED AND WATER IS NOW FLOWING OVER GOLD
RUN ROAD.
1038 PM HEAVY RAIN 3 E LAFAYETTE 39.99N 105.04W
09/11/2013 M4.52 INCH BROOMFIELD CO TRAINED SPOTTER
2.97 INCHES SO FAR TODAY
1039 PM FLASH FLOOD 12 N FORT COLLINS 40.73N 105.07W
09/11/2013 LARIMER CO TRAINED SPOTTER
ROAD CLOSED DUE TO WATER OVER THE ROAD
1039 PM FLASH FLOOD 18 WNW FORT COLLINS 40.65N 105.39W
09/11/2013 LARIMER CO TRAINED SPOTTER
HIGHWAY 14 FROM RUSTIC TO TEDS PLACE IS CLOSED DUE TO
FLOODING AND DEBRIS
1100 PM FLASH FLOOD 8 WSW LOVELAND 40.37N 105.21W
09/11/2013 LARIMER CO TRAINED SPOTTER
4.12 INCHES OF RAIN PAST 4 HOURS. ROADS ARE WASHED OUT
1115 PM FLASH FLOOD 5 E LAPORTE 40.62N 105.03W
09/11/2013 LARIMER CO LAW ENFORCEMENT
ROAD CLOSED AT 27E AND 25E BETWEEN 52E AND 54E DUE TO
FLASH FLOODING.
1126 PM HEAVY RAIN 5 E BOULDER 40.03N 105.16W
09/11/2013 M6.65 INCH BOULDER CO TRAINED SPOTTER
STORM TOTAL SINCE MONDAY WITH 0.36 INCHES PAST HOUR
1130 PM HEAVY RAIN 2 SSW NIWOT 40.07N 105.17W
09/11/2013 M2.93 INCH BOULDER CO TRAINED SPOTTER
STORM TOTAL SO FAR WITH 0.79 INCHES PAST HOUR
1130 PM HEAVY RAIN 3 W FORT COLLINS 40.56N 105.13W
09/11/2013 M2.51 INCH LARIMER CO TRAINED SPOTTER
STORM TOTAL SINCE MONDAY. 1.53 INCHES PAST 15 HOURS
1210 AM HEAVY RAIN 1 NW BOULDER 40.04N 105.26W
09/12/2013 M5.50 INCH BOULDER CO TRAINED SPOTTER
4.00 INCHES PAST 4 HOURS
0101 AM HEAVY RAIN 5 NE WARD 40.12N 105.44W
09/12/2013 M6.16 INCH BOULDER CO TRAINED SPOTTER
SINCE MONDAY. 4.04 INCHES FROM MIDNIGHT TO MIDNIGHT ON
THE 11TH
0102 AM FLASH FLOOD JAMESTOWN 40.12N 105.39W
09/12/2013 BOULDER CO EMERGENCY MNGR
*** 1 FATAL *** MULTIPLE HOMES COLLAPSED AND DESTROYED
NEAR JAMESTOWN.
0124 AM FLASH FLOOD BOULDER 40.03N 105.25W
09/12/2013 BOULDER CO TRAINED SPOTTER
SIGNIFICANT FLOODING AT THE JUSTICE CENTER IN DOWNTOWN
BOULDER
0130 AM HEAVY RAIN 2 S ESTES PARK 40.34N 105.52W
09/12/2013 M2.22 INCH LARIMER CO TRAINED SPOTTER
PAST 2 HOURS
0220 AM HEAVY RAIN LYONS 40.22N 105.27W
09/12/2013 M2.80 INCH BOULDER CO TRAINED SPOTTER
SINCE 6 30 PM LAST NIGHT
0228 AM FLASH FLOOD BOULDER 40.03N 105.25W
09/12/2013 BOULDER CO TRAINED SPOTTER
WATER TO A DEPTH OF 2 TWO FEET RUNNNG DOWN THE HAWTHORNE
ST IN THE NORTHERN PART OF BOULDER
0236 AM HEAVY RAIN 9 WNW LYONS 40.27N 105.43W
09/12/2013 E0.00 INCH LARIMER CO TRAINED SPOTTER
ONE OF THE FOUR DAMS IN THE BIG ELK MEADOWS AREA HAS
BREACHED WHICH MAY COMPROMISE THE OTHER DAMS.
0400 AM FLASH FLOOD 6 N BOULDER 40.11N 105.25W
09/12/2013 BOULDER CO EMERGENCY MNGR
20 FT WALL OF WATER MOVED DOWN LEFT HAND CANYON. A
FIREFIGHTER WAS TRAPPED IN A TREE BUT HAS BEEN RESCUED.
0505 AM HEAVY RAIN 1 W FIRESTONE 40.12N 104.95W
09/12/2013 M4.80 INCH WELD CO NWS EMPLOYEE
LOTS OF RAIN WITH COUNTY ROAD 18 AND 20 FLOODED. ROADS
PARALLEL TO I-25 AROUND COUNTY ROAD 11 FLOODED 6-8 INCHES
DEEP
0508 AM FLASH FLOOD JAMESTOWN 40.12N 105.39W
09/12/2013 BOULDER CO EMERGENCY MNGR
SEVERAL MAJOR CREEK FLOODED WITH PEOPLE TRAPPED. CREEKS
INCLUDE COAL CREEK, LEFT HAND CANYON, 4 MILE CREEK, SAINT
VRAIN. PEOPLE ARE REPORTED TO BE TRAPPED ON THEIR ROOFS.
0542 AM HEAVY RAIN 2 NE THORNTON 39.92N 104.93W
09/12/2013 M2.82 INCH ADAMS CO TRAINED SPOTTER
2.82 INCHES OF RAIN IN THE LAST 24 HOURS WITH A 5.37 INCH
STORM TOTAL
0542 AM HEAVY RAIN 1 SSW LAFAYETTE 39.99N 105.10W
09/12/2013 M3.50 INCH BOULDER CO TRAINED SPOTTER
HEAVY RAIN WITH 3 FEET OF FLOODING IN SOME AREAS.
0542 AM HEAVY RAIN 1 SE FREDERICK 40.09N 104.93W
09/12/2013 M6.15 INCH WELD CO NWS EMPLOYEE
6.15 INCHES SINCE 9 PM LAST NIGHT WITH 7.15 STORM TOTAL.
0655 AM HEAVY RAIN 3 W JAMESTOWN 40.11N 105.44W
09/12/2013 M4.54 INCH BOULDER CO TRAINED SPOTTER
1 HOUR TOTAL IS 1.07 WITH A 24 HOUR TOTAL OF 4.54 AND
SINCE MONDAY HAVE RECEIEVD 7.24 INCHES
0722 AM HEAVY RAIN 1 SSE ESTES PARK 40.36N 105.51W
09/12/2013 M6.32 INCH LARIMER CO TRAINED SPOTTER
0728 AM HEAVY RAIN 3 S ESTES PARK 40.33N 105.52W
09/12/2013 M6.00 INCH LARIMER CO TRAINED SPOTTER
6 INCHES IN THE PAST 48 HOURS
0728 AM HEAVY RAIN ARVADA 39.82N 105.11W
09/12/2013 M2.82 INCH JEFFERSON CO NWS EMPLOYEE
TOTAL RAINFAL 2.82 SINCE MONDAY
0744 AM HEAVY RAIN 7 N GLEN HAVEN 40.55N 105.44W
09/12/2013 M5.20 INCH LARIMER CO TRAINED SPOTTER
0750 AM FLOOD LONGMONT 40.17N 105.11W
09/12/2013 BOULDER CO EMERGENCY MNGR
CITY OF LONGMONT SEEING FLOODING WITH LEFT HAND CREEK
AREA BEING EVACUATED
0809 AM HEAVY RAIN 1 WNW ELDORADO SPRINGS 39.93N 105.28W
09/12/2013 M4.95 INCH BOULDER CO TRAINED SPOTTER
4.95 INCHES OF RAIN IN 24 HOURS WITH A 3 DAY TOTAL OF
7.71 INCHES
0814 AM HEAVY RAIN 2 ENE FORT COLLINS 40.57N 105.04W
09/12/2013 M3.57 INCH LARIMER CO TRAINED SPOTTER
0828 AM HEAVY RAIN 5 NE NORTHGLENN 39.96N 104.91W
09/12/2013 M3.08 INCH ADAMS CO NWS EMPLOYEE
24 HOUR TOTAL IS 3.08 INCHES WITH A 14 HOUR TOTAL OF 4.53
0912 AM HEAVY RAIN 1 WNW AURORA 39.71N 104.84W
09/12/2013 E8.00 INCH ARAPAHOE CO TRAINED SPOTTER
ESTIMATED 8 INCHES SINCE MONDAY
0942 AM HEAVY RAIN 1 NNW ERIE 40.04N 105.06W
09/12/2013 M8.00 INCH BOULDER CO TRAINED SPOTTER
1007 AM FLOOD LONGMONT 40.17N 105.11W
09/12/2013 BOULDER CO NWS EMPLOYEE
ST VRAIN ROAD AND HYGIENE ROAD ARE FLOODED
1007 AM FLOOD 2 W AURORA 39.69N 104.85W
09/12/2013 ARAPAHOE CO COCORAHS
3.80 INCHES OF RAIN IN THE PAST 5 HOURS. FLOODING OVER
MISSISSIPPI AVE
1007 AM HEAVY RAIN 2 NW AURORA 39.71N 104.84W
09/12/2013 M4.30 INCH ARAPAHOE CO TRAINED SPOTTER
0150 PM HEAVY RAIN 2 NW AURORA 39.71N 104.84W
09/12/2013 M11.50 INCH ARAPAHOE CO TRAINED SPOTTER
0150 PM HEAVY RAIN 2 ENE BROOMFIELD 39.95N 105.03W
09/12/2013 M4.01 INCH BROOMFIELD CO COCORAHS
4.01 INCHES WITH 1 INCH IN THE PAST 6 HOURS.
0206 PM FLOOD VIRGINIA DALE 40.95N 105.35W
09/12/2013 LARIMER CO PUBLIC
MILE MARKER 379 ALONG HIGHWAY 287 IS FLOODED ACROSS THE
HIGHWAY
0300 PM HEAVY RAIN 3 NW LOUISVILLE 40.00N 105.18W
09/12/2013 M10.21 INCH BOULDER CO COCORAHS
TOTAL RAINFALL IS 10.21 WITH 1.81 INCHES IN THE LAST 8
HOURS
&&
KBOWENLocal storm report, Sep 12, 6:50 PM MDT, 4 hours 2 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
650 PM MDT THU SEP 12 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0645 PM FLASH FLOOD 2 E BOULDER 40.03N 105.21W
09/12/2013 BOULDER CO EMERGENCY MNGR
76TH AND BASELINE FLOODED AND IMPASSIBLE
0645 PM FLASH FLOOD 1 N BOULDER 40.04N 105.25W
09/12/2013 BOULDER CO EMERGENCY MNGR
ROAD IS WASHED OUT AT 4TH AND HAWTHORNE
0630 PM FLASH FLOOD 4 SSE BOULDER 39.97N 105.22W
09/12/2013 BOULDER CO EMERGENCY MNGR
TABLE MESA LEHIGH TO BROADWAY ALL CROSS BRIDGES HAVE
WATER OVER THE TOP.
0630 PM FLASH FLOOD SUPERIOR 39.93N 105.15W
09/12/2013 BOULDER CO EMERGENCY MNGR
MCCASLIN SOUTH OF THE 36 TURNPIKE IS WASHING AWAY
0630 PM HEAVY RAIN SUPERIOR 39.93N 105.15W
09/12/2013 U0.00 INCH BOULDER CO EMERGENCY MNGR
BOTH DIRECTIONS OF 36 HAVE TWO FEET OF STANDING WATER IN
BOTH DIRECTIONS
0300 PM HEAVY RAIN 3 NW LOUISVILLE 40.00N 105.18W
09/12/2013 M10.21 INCH BOULDER CO COCORAHS
TOTAL RAINFALL IS 10.21 WITH 1.81 INCHES IN THE LAST 8
HOURS
0206 PM FLOOD VIRGINIA DALE 40.95N 105.35W
09/12/2013 LARIMER CO PUBLIC
MILE MARKER 379 ALONG HIGHWAY 287 IS FLOODED ACROSS THE
HIGHWAY
0150 PM HEAVY RAIN 2 ENE BROOMFIELD 39.95N 105.03W
09/12/2013 M4.01 INCH BROOMFIELD CO COCORAHS
4.01 INCHES WITH 1 INCH IN THE PAST 6 HOURS.
0150 PM HEAVY RAIN 2 NW AURORA 39.71N 104.84W
09/12/2013 M11.50 INCH ARAPAHOE CO TRAINED SPOTTER
1007 AM HEAVY RAIN 2 NW AURORA 39.71N 104.84W
09/12/2013 M4.30 INCH ARAPAHOE CO TRAINED SPOTTER
1007 AM FLOOD LONGMONT 40.17N 105.11W
09/12/2013 BOULDER CO NWS EMPLOYEE
ST VRAIN ROAD AND HYGIENE ROAD ARE FLOODED
1007 AM FLOOD 2 W AURORA 39.69N 104.85W
09/12/2013 ARAPAHOE CO COCORAHS
3.80 INCHES OF RAIN IN THE PAST 5 HOURS. FLOODING OVER
MISSISSIPPI AVE
0942 AM HEAVY RAIN 1 NNW ERIE 40.04N 105.06W
09/12/2013 M8.00 INCH BOULDER CO TRAINED SPOTTER
0912 AM HEAVY RAIN 1 WNW AURORA 39.71N 104.84W
09/12/2013 E8.00 INCH ARAPAHOE CO TRAINED SPOTTER
ESTIMATED 8 INCHES SINCE MONDAY
0828 AM HEAVY RAIN 5 NE NORTHGLENN 39.96N 104.91W
09/12/2013 M3.08 INCH ADAMS CO NWS EMPLOYEE
24 HOUR TOTAL IS 3.08 INCHES WITH A 14 HOUR TOTAL OF 4.53
0814 AM HEAVY RAIN 2 ENE FORT COLLINS 40.57N 105.04W
09/12/2013 M3.57 INCH LARIMER CO TRAINED SPOTTER
0809 AM HEAVY RAIN 1 WNW ELDORADO SPRINGS 39.93N 105.28W
09/12/2013 M4.95 INCH BOULDER CO TRAINED SPOTTER
4.95 INCHES OF RAIN IN 24 HOURS WITH A 3 DAY TOTAL OF
7.71 INCHES
0750 AM FLOOD LONGMONT 40.17N 105.11W
09/12/2013 BOULDER CO EMERGENCY MNGR
CITY OF LONGMONT SEEING FLOODING WITH LEFT HAND CREEK
AREA BEING EVACUATED
0744 AM HEAVY RAIN 7 N GLEN HAVEN 40.55N 105.44W
09/12/2013 M5.20 INCH LARIMER CO TRAINED SPOTTER
0728 AM HEAVY RAIN 3 S ESTES PARK 40.33N 105.52W
09/12/2013 M6.00 INCH LARIMER CO TRAINED SPOTTER
6 INCHES IN THE PAST 48 HOURS
0728 AM HEAVY RAIN ARVADA 39.82N 105.11W
09/12/2013 M2.82 INCH JEFFERSON CO NWS EMPLOYEE
TOTAL RAINFAL 2.82 SINCE MONDAY
0722 AM HEAVY RAIN 1 SSE ESTES PARK 40.36N 105.51W
09/12/2013 M6.32 INCH LARIMER CO TRAINED SPOTTER
0655 AM HEAVY RAIN 3 W JAMESTOWN 40.11N 105.44W
09/12/2013 M4.54 INCH BOULDER CO TRAINED SPOTTER
1 HOUR TOTAL IS 1.07 WITH A 24 HOUR TOTAL OF 4.54 AND
SINCE MONDAY HAVE RECEIEVD 7.24 INCHES
0542 AM HEAVY RAIN 1 SSW LAFAYETTE 39.99N 105.10W
09/12/2013 M3.50 INCH BOULDER CO TRAINED SPOTTER
HEAVY RAIN WITH 3 FEET OF FLOODING IN SOME AREAS.
0542 AM HEAVY RAIN 1 SE FREDERICK 40.09N 104.93W
09/12/2013 M6.15 INCH WELD CO NWS EMPLOYEE
6.15 INCHES SINCE 9 PM LAST NIGHT WITH 7.15 STORM TOTAL.
0542 AM HEAVY RAIN 2 NE THORNTON 39.92N 104.93W
09/12/2013 M2.82 INCH ADAMS CO TRAINED SPOTTER
2.82 INCHES OF RAIN IN THE LAST 24 HOURS WITH A 5.37 INCH
STORM TOTAL
0508 AM FLASH FLOOD JAMESTOWN 40.12N 105.39W
09/12/2013 BOULDER CO EMERGENCY MNGR
SEVERAL MAJOR CREEK FLOODED WITH PEOPLE TRAPPED. CREEKS
INCLUDE COAL CREEK, LEFT HAND CANYON, 4 MILE CREEK, SAINT
VRAIN. PEOPLE ARE REPORTED TO BE TRAPPED ON THEIR ROOFS.
0505 AM HEAVY RAIN 1 W FIRESTONE 40.12N 104.95W
09/12/2013 M4.80 INCH WELD CO NWS EMPLOYEE
LOTS OF RAIN WITH COUNTY ROAD 18 AND 20 FLOODED. ROADS
PARALLEL TO I-25 AROUND COUNTY ROAD 11 FLOODED 6-8 INCHES
DEEP
0400 AM FLASH FLOOD 6 N BOULDER 40.11N 105.25W
09/12/2013 BOULDER CO EMERGENCY MNGR
20 FT WALL OF WATER MOVED DOWN LEFT HAND CANYON. A
FIREFIGHTER WAS TRAPPED IN A TREE BUT HAS BEEN RESCUED.
0236 AM HEAVY RAIN 9 WNW LYONS 40.27N 105.43W
09/12/2013 E0.00 INCH LARIMER CO TRAINED SPOTTER
ONE OF THE FOUR DAMS IN THE BIG ELK MEADOWS AREA HAS
BREACHED WHICH MAY COMPROMISE THE OTHER DAMS.
0228 AM FLASH FLOOD BOULDER 40.03N 105.25W
09/12/2013 BOULDER CO TRAINED SPOTTER
WATER TO A DEPTH OF 2 TWO FEET RUNNNG DOWN THE HAWTHORNE
ST IN THE NORTHERN PART OF BOULDER
0220 AM HEAVY RAIN LYONS 40.22N 105.27W
09/12/2013 M2.80 INCH BOULDER CO TRAINED SPOTTER
SINCE 6 30 PM LAST NIGHT
0130 AM HEAVY RAIN 2 S ESTES PARK 40.34N 105.52W
09/12/2013 M2.22 INCH LARIMER CO TRAINED SPOTTER
PAST 2 HOURS
0124 AM FLASH FLOOD BOULDER 40.03N 105.25W
09/12/2013 BOULDER CO TRAINED SPOTTER
SIGNIFICANT FLOODING AT THE JUSTICE CENTER IN DOWNTOWN
BOULDER
0102 AM FLASH FLOOD JAMESTOWN 40.12N 105.39W
09/12/2013 BOULDER CO EMERGENCY MNGR
*** 1 FATAL *** MULTIPLE HOMES COLLAPSED AND DESTROYED
NEAR JAMESTOWN.
0101 AM HEAVY RAIN 5 NE WARD 40.12N 105.44W
09/12/2013 M6.16 INCH BOULDER CO TRAINED SPOTTER
SINCE MONDAY. 4.04 INCHES FROM MIDNIGHT TO MIDNIGHT ON
THE 11TH
1210 AM HEAVY RAIN 1 NW BOULDER 40.04N 105.26W
09/12/2013 M5.50 INCH BOULDER CO TRAINED SPOTTER
4.00 INCHES PAST 4 HOURS
1130 PM HEAVY RAIN 2 SSW NIWOT 40.07N 105.17W
09/11/2013 M2.93 INCH BOULDER CO TRAINED SPOTTER
STORM TOTAL SO FAR WITH 0.79 INCHES PAST HOUR
1130 PM HEAVY RAIN 3 W FORT COLLINS 40.56N 105.13W
09/11/2013 M2.51 INCH LARIMER CO TRAINED SPOTTER
STORM TOTAL SINCE MONDAY. 1.53 INCHES PAST 15 HOURS
1126 PM HEAVY RAIN 5 E BOULDER 40.03N 105.16W
09/11/2013 M6.65 INCH BOULDER CO TRAINED SPOTTER
STORM TOTAL SINCE MONDAY WITH 0.36 INCHES PAST HOUR
1115 PM FLASH FLOOD 5 E LAPORTE 40.62N 105.03W
09/11/2013 LARIMER CO LAW ENFORCEMENT
ROAD CLOSED AT 27E AND 25E BETWEEN 52E AND 54E DUE TO
FLASH FLOODING.
1100 PM FLASH FLOOD 8 WSW LOVELAND 40.37N 105.21W
09/11/2013 LARIMER CO TRAINED SPOTTER
4.12 INCHES OF RAIN PAST 4 HOURS. ROADS ARE WASHED OUT
1039 PM FLASH FLOOD 12 N FORT COLLINS 40.73N 105.07W
09/11/2013 LARIMER CO TRAINED SPOTTER
ROAD CLOSED DUE TO WATER OVER THE ROAD
1039 PM FLASH FLOOD 18 WNW FORT COLLINS 40.65N 105.39W
09/11/2013 LARIMER CO TRAINED SPOTTER
HIGHWAY 14 FROM RUSTIC TO TEDS PLACE IS CLOSED DUE TO
FLOODING AND DEBRIS
1038 PM HEAVY RAIN 3 E LAFAYETTE 39.99N 105.04W
09/11/2013 M4.52 INCH BROOMFIELD CO TRAINED SPOTTER
2.97 INCHES SO FAR TODAY
1038 PM FLASH FLOOD 5 W BOULDER 40.03N 105.35W
09/11/2013 BOULDER CO TRAINED SPOTTER
INGRAM GULCH IS CLOSED AND WATER IS NOW FLOWING OVER GOLD
RUN ROAD.
1025 PM FLASH FLOOD 9 S BOULDER 39.90N 105.25W
09/11/2013 JEFFERSON CO EMERGENCY MNGR
FLOODING AND DEBRIS HIGHWAY 72 WEST OF HIGHWAY 93 AT THE
BASE OF COAL CREEK CANYON
1000 PM HEAVY RAIN 5 E BOULDER 40.03N 105.16W
09/11/2013 M6.29 INCH BOULDER CO TRAINED SPOTTER
2.35 INCHES PAST 3 HOURS. THE 6.29 INCHES IS THE TOTAL SO
FAR SINCE 5 PM MONDAY
1000 PM FLASH FLOOD BOULDER 40.03N 105.25W
09/11/2013 BOULDER CO EMERGENCY MNGR
3RD ST AND CANYON AND EASTBOUND BASELINE AT FOOTHILLS
HAVE PARTIAL CLOSURES DUE TO DEBRIS. FLOODING AT 9TH AND
BALSAM.
1000 PM HEAVY RAIN 13 NW GOLDEN 39.87N 105.39W
09/11/2013 M2.31 INCH JEFFERSON CO TRAINED SPOTTER
PAST 16 HOURS. BEAVER CREEK IS BANKFULL. COAL CREEK IS
OVERBANK AND WASHING OVER HWY 72 AT TWIN SPRUCE
0920 PM HEAVY RAIN 2 SE BOULDER 40.01N 105.22W
09/11/2013 M3.35 INCH BOULDER CO MESONET
PAST 6 HOURS
0914 PM HEAVY RAIN LYONS 40.22N 105.27W
09/11/2013 M3.50 INCH BOULDER CO BROADCAST MEDIA
PAST 24 HOURS
0846 PM HEAVY RAIN SUPERIOR 39.93N 105.15W
09/11/2013 M1.90 INCH BOULDER CO TRAINED SPOTTER
1.3 INCHES SINCE 5 PM
0830 PM HEAVY RAIN 7 E FORT COLLINS 40.56N 104.93W
09/11/2013 M1.05 INCH WELD CO TRAINED SPOTTER
PAST 25 MINUTES
0803 PM HEAVY RAIN 1 NW LOUISVILLE 39.98N 105.15W
09/11/2013 M1.10 INCH BOULDER CO TRAINED SPOTTER
PAST HOUR
0700 PM HEAVY RAIN 5 NE BOULDER 40.08N 105.18W
09/11/2013 M4.03 INCH BOULDER CO TRAINED SPOTTER
1.41 INCHES PAST 12 HOURS
&&
JKLocal storm report, Sep 12, 8:19 PM MDT, 2 hours 33 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
819 PM MDT THU SEP 12 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0800 PM HEAVY RAIN 5 E BOULDER 40.03N 105.16W
09/12/2013 M11.66 INCH BOULDER CO TRAINED SPOTTER
SINCE MONDAY EVENING
0800 PM HEAVY RAIN 2 NW AURORA 39.71N 104.84W
09/12/2013 M11.88 INCH ARAPAHOE CO TRAINED SPOTTER
SINCE NOON YESTERDAY
0800 PM HEAVY RAIN 6 NE KARVAL 38.79N 103.46W
09/12/2013 M7.80 INCH LINCOLN CO TRAINED SPOTTER
SINCE NOON
0645 PM FLASH FLOOD 1 N BOULDER 40.04N 105.25W
09/12/2013 BOULDER CO EMERGENCY MNGR
ROAD IS WASHED OUT AT 4TH AND HAWTHORNE
0645 PM FLASH FLOOD 2 E BOULDER 40.03N 105.21W
09/12/2013 BOULDER CO EMERGENCY MNGR
76TH AND BASELINE FLOODED AND IMPASSIBLE
0630 PM HEAVY RAIN SUPERIOR 39.93N 105.15W
09/12/2013 U0.00 INCH BOULDER CO EMERGENCY MNGR
BOTH DIRECTIONS OF 36 HAVE TWO FEET OF STANDING WATER IN
BOTH DIRECTIONS
0630 PM FLASH FLOOD SUPERIOR 39.93N 105.15W
09/12/2013 BOULDER CO EMERGENCY MNGR
MCCASLIN SOUTH OF THE 36 TURNPIKE IS WASHING AWAY
0630 PM FLASH FLOOD 4 SSE BOULDER 39.97N 105.22W
09/12/2013 BOULDER CO EMERGENCY MNGR
TABLE MESA LEHIGH TO BROADWAY ALL CROSS BRIDGES HAVE
WATER OVER THE TOP.
0300 PM HEAVY RAIN 3 NW LOUISVILLE 40.00N 105.18W
09/12/2013 M10.21 INCH BOULDER CO COCORAHS
TOTAL RAINFALL IS 10.21 WITH 1.81 INCHES IN THE LAST 8
HOURS
0206 PM FLOOD VIRGINIA DALE 40.95N 105.35W
09/12/2013 LARIMER CO PUBLIC
MILE MARKER 379 ALONG HIGHWAY 287 IS FLOODED ACROSS THE
HIGHWAY
0150 PM HEAVY RAIN 2 NW AURORA 39.71N 104.84W
09/12/2013 M11.50 INCH ARAPAHOE CO TRAINED SPOTTER
0150 PM HEAVY RAIN 2 ENE BROOMFIELD 39.95N 105.03W
09/12/2013 M4.01 INCH BROOMFIELD CO COCORAHS
4.01 INCHES WITH 1 INCH IN THE PAST 6 HOURS.
1007 AM HEAVY RAIN 2 NW AURORA 39.71N 104.84W
09/12/2013 M4.30 INCH ARAPAHOE CO TRAINED SPOTTER
1007 AM FLOOD LONGMONT 40.17N 105.11W
09/12/2013 BOULDER CO NWS EMPLOYEE
ST VRAIN ROAD AND HYGIENE ROAD ARE FLOODED
1007 AM FLOOD 2 W AURORA 39.69N 104.85W
09/12/2013 ARAPAHOE CO COCORAHS
3.80 INCHES OF RAIN IN THE PAST 5 HOURS. FLOODING OVER
MISSISSIPPI AVE
0942 AM HEAVY RAIN 1 NNW ERIE 40.04N 105.06W
09/12/2013 M8.00 INCH BOULDER CO TRAINED SPOTTER
0912 AM HEAVY RAIN 1 WNW AURORA 39.71N 104.84W
09/12/2013 E8.00 INCH ARAPAHOE CO TRAINED SPOTTER
ESTIMATED 8 INCHES SINCE MONDAY
0828 AM HEAVY RAIN 5 NE NORTHGLENN 39.96N 104.91W
09/12/2013 M3.08 INCH ADAMS CO NWS EMPLOYEE
24 HOUR TOTAL IS 3.08 INCHES WITH A 14 HOUR TOTAL OF 4.53
0814 AM HEAVY RAIN 2 ENE FORT COLLINS 40.57N 105.04W
09/12/2013 M3.57 INCH LARIMER CO TRAINED SPOTTER
0809 AM HEAVY RAIN 1 WNW ELDORADO SPRINGS 39.93N 105.28W
09/12/2013 M4.95 INCH BOULDER CO TRAINED SPOTTER
4.95 INCHES OF RAIN IN 24 HOURS WITH A 3 DAY TOTAL OF
7.71 INCHES
0750 AM FLOOD LONGMONT 40.17N 105.11W
09/12/2013 BOULDER CO EMERGENCY MNGR
CITY OF LONGMONT SEEING FLOODING WITH LEFT HAND CREEK
AREA BEING EVACUATED
0744 AM HEAVY RAIN 7 N GLEN HAVEN 40.55N 105.44W
09/12/2013 M5.20 INCH LARIMER CO TRAINED SPOTTER
0728 AM HEAVY RAIN 3 S ESTES PARK 40.33N 105.52W
09/12/2013 M6.00 INCH LARIMER CO TRAINED SPOTTER
6 INCHES IN THE PAST 48 HOURS
0728 AM HEAVY RAIN ARVADA 39.82N 105.11W
09/12/2013 M2.82 INCH JEFFERSON CO NWS EMPLOYEE
TOTAL RAINFAL 2.82 SINCE MONDAY
0722 AM HEAVY RAIN 1 SSE ESTES PARK 40.36N 105.51W
09/12/2013 M6.32 INCH LARIMER CO TRAINED SPOTTER
0655 AM HEAVY RAIN 3 W JAMESTOWN 40.11N 105.44W
09/12/2013 M4.54 INCH BOULDER CO TRAINED SPOTTER
1 HOUR TOTAL IS 1.07 WITH A 24 HOUR TOTAL OF 4.54 AND
SINCE MONDAY HAVE RECEIEVD 7.24 INCHES
0542 AM HEAVY RAIN 1 SE FREDERICK 40.09N 104.93W
09/12/2013 M6.15 INCH WELD CO NWS EMPLOYEE
6.15 INCHES SINCE 9 PM LAST NIGHT WITH 7.15 STORM TOTAL.
0542 AM HEAVY RAIN 2 NE THORNTON 39.92N 104.93W
09/12/2013 M2.82 INCH ADAMS CO TRAINED SPOTTER
2.82 INCHES OF RAIN IN THE LAST 24 HOURS WITH A 5.37 INCH
STORM TOTAL
0542 AM HEAVY RAIN 1 SSW LAFAYETTE 39.99N 105.10W
09/12/2013 M3.50 INCH BOULDER CO TRAINED SPOTTER
HEAVY RAIN WITH 3 FEET OF FLOODING IN SOME AREAS.
0508 AM FLASH FLOOD JAMESTOWN 40.12N 105.39W
09/12/2013 BOULDER CO EMERGENCY MNGR
SEVERAL MAJOR CREEK FLOODED WITH PEOPLE TRAPPED. CREEKS
INCLUDE COAL CREEK, LEFT HAND CANYON, 4 MILE CREEK, SAINT
VRAIN. PEOPLE ARE REPORTED TO BE TRAPPED ON THEIR ROOFS.
0505 AM HEAVY RAIN 1 W FIRESTONE 40.12N 104.95W
09/12/2013 M4.80 INCH WELD CO NWS EMPLOYEE
LOTS OF RAIN WITH COUNTY ROAD 18 AND 20 FLOODED. ROADS
PARALLEL TO I-25 AROUND COUNTY ROAD 11 FLOODED 6-8 INCHES
DEEP
0400 AM FLASH FLOOD 6 N BOULDER 40.11N 105.25W
09/12/2013 BOULDER CO EMERGENCY MNGR
20 FT WALL OF WATER MOVED DOWN LEFT HAND CANYON. A
FIREFIGHTER WAS TRAPPED IN A TREE BUT HAS BEEN RESCUED.
0236 AM HEAVY RAIN 9 WNW LYONS 40.27N 105.43W
09/12/2013 E0.00 INCH LARIMER CO TRAINED SPOTTER
ONE OF THE FOUR DAMS IN THE BIG ELK MEADOWS AREA HAS
BREACHED WHICH MAY COMPROMISE THE OTHER DAMS.
0228 AM FLASH FLOOD BOULDER 40.03N 105.25W
09/12/2013 BOULDER CO TRAINED SPOTTER
WATER TO A DEPTH OF 2 TWO FEET RUNNNG DOWN THE HAWTHORNE
ST IN THE NORTHERN PART OF BOULDER
0220 AM HEAVY RAIN LYONS 40.22N 105.27W
09/12/2013 M2.80 INCH BOULDER CO TRAINED SPOTTER
SINCE 6 30 PM LAST NIGHT
0130 AM HEAVY RAIN 2 S ESTES PARK 40.34N 105.52W
09/12/2013 M2.22 INCH LARIMER CO TRAINED SPOTTER
PAST 2 HOURS
0124 AM FLASH FLOOD BOULDER 40.03N 105.25W
09/12/2013 BOULDER CO TRAINED SPOTTER
SIGNIFICANT FLOODING AT THE JUSTICE CENTER IN DOWNTOWN
BOULDER
0102 AM FLASH FLOOD JAMESTOWN 40.12N 105.39W
09/12/2013 BOULDER CO EMERGENCY MNGR
*** 1 FATAL *** MULTIPLE HOMES COLLAPSED AND DESTROYED
NEAR JAMESTOWN.
0101 AM HEAVY RAIN 5 NE WARD 40.12N 105.44W
09/12/2013 M6.16 INCH BOULDER CO TRAINED SPOTTER
SINCE MONDAY. 4.04 INCHES FROM MIDNIGHT TO MIDNIGHT ON
THE 11TH
1210 AM HEAVY RAIN 1 NW BOULDER 40.04N 105.26W
09/12/2013 M5.50 INCH BOULDER CO TRAINED SPOTTER
4.00 INCHES PAST 4 HOURS
1130 PM HEAVY RAIN 2 SSW NIWOT 40.07N 105.17W
09/11/2013 M2.93 INCH BOULDER CO TRAINED SPOTTER
STORM TOTAL SO FAR WITH 0.79 INCHES PAST HOUR
1130 PM HEAVY RAIN 3 W FORT COLLINS 40.56N 105.13W
09/11/2013 M2.51 INCH LARIMER CO TRAINED SPOTTER
STORM TOTAL SINCE MONDAY. 1.53 INCHES PAST 15 HOURS
1126 PM HEAVY RAIN 5 E BOULDER 40.03N 105.16W
09/11/2013 M6.65 INCH BOULDER CO TRAINED SPOTTER
STORM TOTAL SINCE MONDAY WITH 0.36 INCHES PAST HOUR
1115 PM FLASH FLOOD 5 E LAPORTE 40.62N 105.03W
09/11/2013 LARIMER CO LAW ENFORCEMENT
ROAD CLOSED AT 27E AND 25E BETWEEN 52E AND 54E DUE TO
FLASH FLOODING.
1100 PM FLASH FLOOD 8 WSW LOVELAND 40.37N 105.21W
09/11/2013 LARIMER CO TRAINED SPOTTER
4.12 INCHES OF RAIN PAST 4 HOURS. ROADS ARE WASHED OUT
1039 PM FLASH FLOOD 12 N FORT COLLINS 40.73N 105.07W
09/11/2013 LARIMER CO TRAINED SPOTTER
ROAD CLOSED DUE TO WATER OVER THE ROAD
1039 PM FLASH FLOOD 18 WNW FORT COLLINS 40.65N 105.39W
09/11/2013 LARIMER CO TRAINED SPOTTER
HIGHWAY 14 FROM RUSTIC TO TEDS PLACE IS CLOSED DUE TO
FLOODING AND DEBRIS
1038 PM FLASH FLOOD 5 W BOULDER 40.03N 105.35W
09/11/2013 BOULDER CO TRAINED SPOTTER
INGRAM GULCH IS CLOSED AND WATER IS NOW FLOWING OVER GOLD
RUN ROAD.
1038 PM HEAVY RAIN 3 E LAFAYETTE 39.99N 105.04W
09/11/2013 M4.52 INCH BROOMFIELD CO TRAINED SPOTTER
2.97 INCHES SO FAR TODAY
1025 PM FLASH FLOOD 9 S BOULDER 39.90N 105.25W
09/11/2013 JEFFERSON CO EMERGENCY MNGR
FLOODING AND DEBRIS HIGHWAY 72 WEST OF HIGHWAY 93 AT THE
BASE OF COAL CREEK CANYON
1000 PM HEAVY RAIN 13 NW GOLDEN 39.87N 105.39W
09/11/2013 M2.31 INCH JEFFERSON CO TRAINED SPOTTER
PAST 16 HOURS. BEAVER CREEK IS BANKFULL. COAL CREEK IS
OVERBANK AND WASHING OVER HWY 72 AT TWIN SPRUCE
1000 PM HEAVY RAIN 5 E BOULDER 40.03N 105.16W
09/11/2013 M6.29 INCH BOULDER CO TRAINED SPOTTER
2.35 INCHES PAST 3 HOURS. THE 6.29 INCHES IS THE TOTAL SO
FAR SINCE 5 PM MONDAY
1000 PM FLASH FLOOD BOULDER 40.03N 105.25W
09/11/2013 BOULDER CO EMERGENCY MNGR
3RD ST AND CANYON AND EASTBOUND BASELINE AT FOOTHILLS
HAVE PARTIAL CLOSURES DUE TO DEBRIS. FLOODING AT 9TH AND
BALSAM.
0920 PM HEAVY RAIN 2 SE BOULDER 40.01N 105.22W
09/11/2013 M3.35 INCH BOULDER CO MESONET
PAST 6 HOURS
0914 PM HEAVY RAIN LYONS 40.22N 105.27W
09/11/2013 M3.50 INCH BOULDER CO BROADCAST MEDIA
PAST 24 HOURS
0846 PM HEAVY RAIN SUPERIOR 39.93N 105.15W
09/11/2013 M1.90 INCH BOULDER CO TRAINED SPOTTER
1.3 INCHES SINCE 5 PM
0830 PM HEAVY RAIN 7 E FORT COLLINS 40.56N 104.93W
09/11/2013 M1.05 INCH WELD CO TRAINED SPOTTER
PAST 25 MINUTES
&&
JKLocal storm report, Sep 12, 8:33 PM MDT, 2 hours 19 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
833 PM MDT THU SEP 12 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0815 PM HEAVY RAIN GENESEE 39.69N 105.27W
09/12/2013 M8.90 INCH JEFFERSON CO TRAINED SPOTTER
STORM RAIN TOTAL SINCE MONDAY AFTERNOON. 2.80 INCHES PAST
SIX HOURS.
0800 PM HEAVY RAIN 5 E BOULDER 40.03N 105.16W
09/12/2013 M11.66 INCH BOULDER CO TRAINED SPOTTER
SINCE MONDAY EVENING
0800 PM HEAVY RAIN 6 NE KARVAL 38.79N 103.46W
09/12/2013 M7.80 INCH LINCOLN CO TRAINED SPOTTER
SINCE NOON
0800 PM HEAVY RAIN 2 NW AURORA 39.71N 104.84W
09/12/2013 M11.88 INCH ARAPAHOE CO TRAINED SPOTTER
SINCE NOON YESTERDAY
0645 PM FLASH FLOOD 2 E BOULDER 40.03N 105.21W
09/12/2013 BOULDER CO EMERGENCY MNGR
76TH AND BASELINE FLOODED AND IMPASSIBLE
0645 PM FLASH FLOOD 1 N BOULDER 40.04N 105.25W
09/12/2013 BOULDER CO EMERGENCY MNGR
ROAD IS WASHED OUT AT 4TH AND HAWTHORNE
0630 PM FLASH FLOOD SUPERIOR 39.93N 105.15W
09/12/2013 BOULDER CO EMERGENCY MNGR
MCCASLIN SOUTH OF THE 36 TURNPIKE IS WASHING AWAY
0630 PM HEAVY RAIN SUPERIOR 39.93N 105.15W
09/12/2013 U0.00 INCH BOULDER CO EMERGENCY MNGR
BOTH DIRECTIONS OF 36 HAVE TWO FEET OF STANDING WATER IN
BOTH DIRECTIONS
0630 PM FLASH FLOOD 4 SSE BOULDER 39.97N 105.22W
09/12/2013 BOULDER CO EMERGENCY MNGR
TABLE MESA LEHIGH TO BROADWAY ALL CROSS BRIDGES HAVE
WATER OVER THE TOP.
0525 PM FLASH FLOOD 8 NNW BOULDER 40.13N 105.31W
09/12/2013 BOULDER CO TRAINED SPOTTER
BRIDGE REPORTED OUT FROM GLENDALE GULCH TO LEFTHAND
STATION
0300 PM HEAVY RAIN 3 NW LOUISVILLE 40.00N 105.18W
09/12/2013 M10.21 INCH BOULDER CO COCORAHS
TOTAL RAINFALL IS 10.21 WITH 1.81 INCHES IN THE LAST 8
HOURS
0206 PM FLOOD VIRGINIA DALE 40.95N 105.35W
09/12/2013 LARIMER CO PUBLIC
MILE MARKER 379 ALONG HIGHWAY 287 IS FLOODED ACROSS THE
HIGHWAY
0150 PM HEAVY RAIN 2 ENE BROOMFIELD 39.95N 105.03W
09/12/2013 M4.01 INCH BROOMFIELD CO COCORAHS
4.01 INCHES WITH 1 INCH IN THE PAST 6 HOURS.
0150 PM HEAVY RAIN 2 NW AURORA 39.71N 104.84W
09/12/2013 M11.50 INCH ARAPAHOE CO TRAINED SPOTTER
1007 AM FLOOD LONGMONT 40.17N 105.11W
09/12/2013 BOULDER CO NWS EMPLOYEE
ST VRAIN ROAD AND HYGIENE ROAD ARE FLOODED
1007 AM HEAVY RAIN 2 NW AURORA 39.71N 104.84W
09/12/2013 M4.30 INCH ARAPAHOE CO TRAINED SPOTTER
1007 AM FLOOD 2 W AURORA 39.69N 104.85W
09/12/2013 ARAPAHOE CO COCORAHS
3.80 INCHES OF RAIN IN THE PAST 5 HOURS. FLOODING OVER
MISSISSIPPI AVE
0942 AM HEAVY RAIN 1 NNW ERIE 40.04N 105.06W
09/12/2013 M8.00 INCH BOULDER CO TRAINED SPOTTER
0912 AM HEAVY RAIN 1 WNW AURORA 39.71N 104.84W
09/12/2013 E8.00 INCH ARAPAHOE CO TRAINED SPOTTER
ESTIMATED 8 INCHES SINCE MONDAY
0828 AM HEAVY RAIN 5 NE NORTHGLENN 39.96N 104.91W
09/12/2013 M3.08 INCH ADAMS CO NWS EMPLOYEE
24 HOUR TOTAL IS 3.08 INCHES WITH A 14 HOUR TOTAL OF 4.53
0814 AM HEAVY RAIN 2 ENE FORT COLLINS 40.57N 105.04W
09/12/2013 M3.57 INCH LARIMER CO TRAINED SPOTTER
0809 AM HEAVY RAIN 1 WNW ELDORADO SPRINGS 39.93N 105.28W
09/12/2013 M4.95 INCH BOULDER CO TRAINED SPOTTER
4.95 INCHES OF RAIN IN 24 HOURS WITH A 3 DAY TOTAL OF
7.71 INCHES
0750 AM FLOOD LONGMONT 40.17N 105.11W
09/12/2013 BOULDER CO EMERGENCY MNGR
CITY OF LONGMONT SEEING FLOODING WITH LEFT HAND CREEK
AREA BEING EVACUATED
0744 AM HEAVY RAIN 7 N GLEN HAVEN 40.55N 105.44W
09/12/2013 M5.20 INCH LARIMER CO TRAINED SPOTTER
0728 AM HEAVY RAIN 3 S ESTES PARK 40.33N 105.52W
09/12/2013 M6.00 INCH LARIMER CO TRAINED SPOTTER
6 INCHES IN THE PAST 48 HOURS
0728 AM HEAVY RAIN ARVADA 39.82N 105.11W
09/12/2013 M2.82 INCH JEFFERSON CO NWS EMPLOYEE
TOTAL RAINFAL 2.82 SINCE MONDAY
0722 AM HEAVY RAIN 1 SSE ESTES PARK 40.36N 105.51W
09/12/2013 M6.32 INCH LARIMER CO TRAINED SPOTTER
0655 AM HEAVY RAIN 3 W JAMESTOWN 40.11N 105.44W
09/12/2013 M4.54 INCH BOULDER CO TRAINED SPOTTER
1 HOUR TOTAL IS 1.07 WITH A 24 HOUR TOTAL OF 4.54 AND
SINCE MONDAY HAVE RECEIEVD 7.24 INCHES
0542 AM HEAVY RAIN 2 NE THORNTON 39.92N 104.93W
09/12/2013 M2.82 INCH ADAMS CO TRAINED SPOTTER
2.82 INCHES OF RAIN IN THE LAST 24 HOURS WITH A 5.37 INCH
STORM TOTAL
0542 AM HEAVY RAIN 1 SE FREDERICK 40.09N 104.93W
09/12/2013 M6.15 INCH WELD CO NWS EMPLOYEE
6.15 INCHES SINCE 9 PM LAST NIGHT WITH 7.15 STORM TOTAL.
0542 AM HEAVY RAIN 1 SSW LAFAYETTE 39.99N 105.10W
09/12/2013 M3.50 INCH BOULDER CO TRAINED SPOTTER
HEAVY RAIN WITH 3 FEET OF FLOODING IN SOME AREAS.
0508 AM FLASH FLOOD JAMESTOWN 40.12N 105.39W
09/12/2013 BOULDER CO EMERGENCY MNGR
SEVERAL MAJOR CREEK FLOODED WITH PEOPLE TRAPPED. CREEKS
INCLUDE COAL CREEK, LEFT HAND CANYON, 4 MILE CREEK, SAINT
VRAIN. PEOPLE ARE REPORTED TO BE TRAPPED ON THEIR ROOFS.
0505 AM HEAVY RAIN 1 W FIRESTONE 40.12N 104.95W
09/12/2013 M4.80 INCH WELD CO NWS EMPLOYEE
LOTS OF RAIN WITH COUNTY ROAD 18 AND 20 FLOODED. ROADS
PARALLEL TO I-25 AROUND COUNTY ROAD 11 FLOODED 6-8 INCHES
DEEP
0400 AM FLASH FLOOD 6 N BOULDER 40.11N 105.25W
09/12/2013 BOULDER CO EMERGENCY MNGR
20 FT WALL OF WATER MOVED DOWN LEFT HAND CANYON. A
FIREFIGHTER WAS TRAPPED IN A TREE BUT HAS BEEN RESCUED.
0236 AM HEAVY RAIN 9 WNW LYONS 40.27N 105.43W
09/12/2013 E0.00 INCH LARIMER CO TRAINED SPOTTER
ONE OF THE FOUR DAMS IN THE BIG ELK MEADOWS AREA HAS
BREACHED WHICH MAY COMPROMISE THE OTHER DAMS.
0228 AM FLASH FLOOD BOULDER 40.03N 105.25W
09/12/2013 BOULDER CO TRAINED SPOTTER
WATER TO A DEPTH OF 2 TWO FEET RUNNNG DOWN THE HAWTHORNE
ST IN THE NORTHERN PART OF BOULDER
0220 AM HEAVY RAIN LYONS 40.22N 105.27W
09/12/2013 M2.80 INCH BOULDER CO TRAINED SPOTTER
SINCE 6 30 PM LAST NIGHT
0130 AM HEAVY RAIN 2 S ESTES PARK 40.34N 105.52W
09/12/2013 M2.22 INCH LARIMER CO TRAINED SPOTTER
PAST 2 HOURS
0124 AM FLASH FLOOD BOULDER 40.03N 105.25W
09/12/2013 BOULDER CO TRAINED SPOTTER
SIGNIFICANT FLOODING AT THE JUSTICE CENTER IN DOWNTOWN
BOULDER
0102 AM FLASH FLOOD JAMESTOWN 40.12N 105.39W
09/12/2013 BOULDER CO EMERGENCY MNGR
*** 1 FATAL *** MULTIPLE HOMES COLLAPSED AND DESTROYED
NEAR JAMESTOWN.
0101 AM HEAVY RAIN 5 NE WARD 40.12N 105.44W
09/12/2013 M6.16 INCH BOULDER CO TRAINED SPOTTER
SINCE MONDAY. 4.04 INCHES FROM MIDNIGHT TO MIDNIGHT ON
THE 11TH
1210 AM HEAVY RAIN 1 NW BOULDER 40.04N 105.26W
09/12/2013 M5.50 INCH BOULDER CO TRAINED SPOTTER
4.00 INCHES PAST 4 HOURS
1130 PM HEAVY RAIN 3 W FORT COLLINS 40.56N 105.13W
09/11/2013 M2.51 INCH LARIMER CO TRAINED SPOTTER
STORM TOTAL SINCE MONDAY. 1.53 INCHES PAST 15 HOURS
1130 PM HEAVY RAIN 2 SSW NIWOT 40.07N 105.17W
09/11/2013 M2.93 INCH BOULDER CO TRAINED SPOTTER
STORM TOTAL SO FAR WITH 0.79 INCHES PAST HOUR
1126 PM HEAVY RAIN 5 E BOULDER 40.03N 105.16W
09/11/2013 M6.65 INCH BOULDER CO TRAINED SPOTTER
STORM TOTAL SINCE MONDAY WITH 0.36 INCHES PAST HOUR
1115 PM FLASH FLOOD 5 E LAPORTE 40.62N 105.03W
09/11/2013 LARIMER CO LAW ENFORCEMENT
ROAD CLOSED AT 27E AND 25E BETWEEN 52E AND 54E DUE TO
FLASH FLOODING.
1100 PM FLASH FLOOD 8 WSW LOVELAND 40.37N 105.21W
09/11/2013 LARIMER CO TRAINED SPOTTER
4.12 INCHES OF RAIN PAST 4 HOURS. ROADS ARE WASHED OUT
1039 PM FLASH FLOOD 12 N FORT COLLINS 40.73N 105.07W
09/11/2013 LARIMER CO TRAINED SPOTTER
ROAD CLOSED DUE TO WATER OVER THE ROAD
1039 PM FLASH FLOOD 18 WNW FORT COLLINS 40.65N 105.39W
09/11/2013 LARIMER CO TRAINED SPOTTER
HIGHWAY 14 FROM RUSTIC TO TEDS PLACE IS CLOSED DUE TO
FLOODING AND DEBRIS
1038 PM HEAVY RAIN 3 E LAFAYETTE 39.99N 105.04W
09/11/2013 M4.52 INCH BROOMFIELD CO TRAINED SPOTTER
2.97 INCHES SO FAR TODAY
1038 PM FLASH FLOOD 5 W BOULDER 40.03N 105.35W
09/11/2013 BOULDER CO TRAINED SPOTTER
INGRAM GULCH IS CLOSED AND WATER IS NOW FLOWING OVER GOLD
RUN ROAD.
1025 PM FLASH FLOOD 9 S BOULDER 39.90N 105.25W
09/11/2013 JEFFERSON CO EMERGENCY MNGR
FLOODING AND DEBRIS HIGHWAY 72 WEST OF HIGHWAY 93 AT THE
BASE OF COAL CREEK CANYON
1000 PM FLASH FLOOD BOULDER 40.03N 105.25W
09/11/2013 BOULDER CO EMERGENCY MNGR
3RD ST AND CANYON AND EASTBOUND BASELINE AT FOOTHILLS
HAVE PARTIAL CLOSURES DUE TO DEBRIS. FLOODING AT 9TH AND
BALSAM.
1000 PM HEAVY RAIN 5 E BOULDER 40.03N 105.16W
09/11/2013 M6.29 INCH BOULDER CO TRAINED SPOTTER
2.35 INCHES PAST 3 HOURS. THE 6.29 INCHES IS THE TOTAL SO
FAR SINCE 5 PM MONDAY
1000 PM HEAVY RAIN 13 NW GOLDEN 39.87N 105.39W
09/11/2013 M2.31 INCH JEFFERSON CO TRAINED SPOTTER
PAST 16 HOURS. BEAVER CREEK IS BANKFULL. COAL CREEK IS
OVERBANK AND WASHING OVER HWY 72 AT TWIN SPRUCE
0920 PM HEAVY RAIN 2 SE BOULDER 40.01N 105.22W
09/11/2013 M3.35 INCH BOULDER CO MESONET
PAST 6 HOURS
0914 PM HEAVY RAIN LYONS 40.22N 105.27W
09/11/2013 M3.50 INCH BOULDER CO BROADCAST MEDIA
PAST 24 HOURS
0846 PM HEAVY RAIN SUPERIOR 39.93N 105.15W
09/11/2013 M1.90 INCH BOULDER CO TRAINED SPOTTER
1.3 INCHES SINCE 5 PM
&&
JKLocal storm report, Sep 12, 10:05 PM MDT, 47 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
1005 PM MDT THU SEP 12 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0948 PM FLASH FLOOD 5 E BOULDER 40.03N 105.16W
09/12/2013 BOULDER CO TRAINED SPOTTER
WATER FLOWING SOUTH TO NORTH ABOUT 40 FT ACROSS ARAPAHOE
ROAD
0945 PM FLASH FLOOD 4 NW BOULDER 40.07N 105.30W
09/12/2013 BOULDER CO TRAINED SPOTTER
LEE HILL HAS TURNED INTO A RIVER AND IS IMPASSIBLE
0941 PM HEAVY RAIN 4 WSW ELDORADO SPRINGS 39.91N 105.34W
09/12/2013 M14.60 INCH JEFFERSON CO TRAINED SPOTTER
SINCE MONDAY AFTERNOON.
0849 PM HEAVY RAIN 1 SW EVERGREEN 39.62N 105.36W
09/12/2013 M3.47 INCH JEFFERSON CO TRAINED SPOTTER
SINCE MONDAY
0815 PM HEAVY RAIN GENESEE 39.69N 105.27W
09/12/2013 M8.90 INCH JEFFERSON CO TRAINED SPOTTER
STORM RAIN TOTAL SINCE MONDAY AFTERNOON. 2.80 INCHES PAST
SIX HOURS.
0800 PM HEAVY RAIN 6 NE KARVAL 38.79N 103.46W
09/12/2013 M7.80 INCH LINCOLN CO TRAINED SPOTTER
SINCE NOON
0800 PM HEAVY RAIN 2 NW AURORA 39.71N 104.84W
09/12/2013 M11.88 INCH ARAPAHOE CO TRAINED SPOTTER
SINCE NOON YESTERDAY
0800 PM HEAVY RAIN 5 E BOULDER 40.03N 105.16W
09/12/2013 M11.66 INCH BOULDER CO TRAINED SPOTTER
SINCE MONDAY EVENING
0645 PM FLASH FLOOD 2 E BOULDER 40.03N 105.21W
09/12/2013 BOULDER CO EMERGENCY MNGR
76TH AND BASELINE FLOODED AND IMPASSIBLE
0645 PM FLASH FLOOD 1 N BOULDER 40.04N 105.25W
09/12/2013 BOULDER CO EMERGENCY MNGR
ROAD IS WASHED OUT AT 4TH AND HAWTHORNE
0630 PM FLASH FLOOD 4 SSE BOULDER 39.97N 105.22W
09/12/2013 BOULDER CO EMERGENCY MNGR
TABLE MESA LEHIGH TO BROADWAY ALL CROSS BRIDGES HAVE
WATER OVER THE TOP.
0630 PM FLASH FLOOD SUPERIOR 39.93N 105.15W
09/12/2013 BOULDER CO EMERGENCY MNGR
MCCASLIN SOUTH OF THE 36 TURNPIKE IS WASHING AWAY
0630 PM HEAVY RAIN SUPERIOR 39.93N 105.15W
09/12/2013 U0.00 INCH BOULDER CO EMERGENCY MNGR
BOTH DIRECTIONS OF 36 HAVE TWO FEET OF STANDING WATER IN
BOTH DIRECTIONS
0525 PM FLASH FLOOD 8 NNW BOULDER 40.13N 105.31W
09/12/2013 BOULDER CO TRAINED SPOTTER
BRIDGE REPORTED OUT FROM GLENDALE GULCH TO LEFTHAND
STATION
0300 PM HEAVY RAIN 3 NW LOUISVILLE 40.00N 105.18W
09/12/2013 M10.21 INCH BOULDER CO COCORAHS
TOTAL RAINFALL IS 10.21 WITH 1.81 INCHES IN THE LAST 8
HOURS
0206 PM FLOOD VIRGINIA DALE 40.95N 105.35W
09/12/2013 LARIMER CO PUBLIC
MILE MARKER 379 ALONG HIGHWAY 287 IS FLOODED ACROSS THE
HIGHWAY
0150 PM HEAVY RAIN 2 ENE BROOMFIELD 39.95N 105.03W
09/12/2013 M4.01 INCH BROOMFIELD CO COCORAHS
4.01 INCHES WITH 1 INCH IN THE PAST 6 HOURS.
0150 PM HEAVY RAIN 2 NW AURORA 39.71N 104.84W
09/12/2013 M11.50 INCH ARAPAHOE CO TRAINED SPOTTER
1007 AM HEAVY RAIN 2 NW AURORA 39.71N 104.84W
09/12/2013 M4.30 INCH ARAPAHOE CO TRAINED SPOTTER
1007 AM FLOOD 2 W AURORA 39.69N 104.85W
09/12/2013 ARAPAHOE CO COCORAHS
3.80 INCHES OF RAIN IN THE PAST 5 HOURS. FLOODING OVER
MISSISSIPPI AVE
1007 AM FLOOD LONGMONT 40.17N 105.11W
09/12/2013 BOULDER CO NWS EMPLOYEE
ST VRAIN ROAD AND HYGIENE ROAD ARE FLOODED
0942 AM HEAVY RAIN 1 NNW ERIE 40.04N 105.06W
09/12/2013 M8.00 INCH BOULDER CO TRAINED SPOTTER
0912 AM HEAVY RAIN 1 WNW AURORA 39.71N 104.84W
09/12/2013 E8.00 INCH ARAPAHOE CO TRAINED SPOTTER
ESTIMATED 8 INCHES SINCE MONDAY
0828 AM HEAVY RAIN 5 NE NORTHGLENN 39.96N 104.91W
09/12/2013 M3.08 INCH ADAMS CO NWS EMPLOYEE
24 HOUR TOTAL IS 3.08 INCHES WITH A 14 HOUR TOTAL OF 4.53
0814 AM HEAVY RAIN 2 ENE FORT COLLINS 40.57N 105.04W
09/12/2013 M3.57 INCH LARIMER CO TRAINED SPOTTER
0809 AM HEAVY RAIN 1 WNW ELDORADO SPRINGS 39.93N 105.28W
09/12/2013 M4.95 INCH BOULDER CO TRAINED SPOTTER
4.95 INCHES OF RAIN IN 24 HOURS WITH A 3 DAY TOTAL OF
7.71 INCHES
0750 AM FLOOD LONGMONT 40.17N 105.11W
09/12/2013 BOULDER CO EMERGENCY MNGR
CITY OF LONGMONT SEEING FLOODING WITH LEFT HAND CREEK
AREA BEING EVACUATED
0744 AM HEAVY RAIN 7 N GLEN HAVEN 40.55N 105.44W
09/12/2013 M5.20 INCH LARIMER CO TRAINED SPOTTER
0728 AM HEAVY RAIN ARVADA 39.82N 105.11W
09/12/2013 M2.82 INCH JEFFERSON CO NWS EMPLOYEE
TOTAL RAINFAL 2.82 SINCE MONDAY
0728 AM HEAVY RAIN 3 S ESTES PARK 40.33N 105.52W
09/12/2013 M6.00 INCH LARIMER CO TRAINED SPOTTER
6 INCHES IN THE PAST 48 HOURS
0722 AM HEAVY RAIN 1 SSE ESTES PARK 40.36N 105.51W
09/12/2013 M6.32 INCH LARIMER CO TRAINED SPOTTER
0655 AM HEAVY RAIN 3 W JAMESTOWN 40.11N 105.44W
09/12/2013 M4.54 INCH BOULDER CO TRAINED SPOTTER
1 HOUR TOTAL IS 1.07 WITH A 24 HOUR TOTAL OF 4.54 AND
SINCE MONDAY HAVE RECEIEVD 7.24 INCHES
0542 AM HEAVY RAIN 1 SSW LAFAYETTE 39.99N 105.10W
09/12/2013 M3.50 INCH BOULDER CO TRAINED SPOTTER
HEAVY RAIN WITH 3 FEET OF FLOODING IN SOME AREAS.
0542 AM HEAVY RAIN 2 NE THORNTON 39.92N 104.93W
09/12/2013 M2.82 INCH ADAMS CO TRAINED SPOTTER
2.82 INCHES OF RAIN IN THE LAST 24 HOURS WITH A 5.37 INCH
STORM TOTAL
0542 AM HEAVY RAIN 1 SE FREDERICK 40.09N 104.93W
09/12/2013 M6.15 INCH WELD CO NWS EMPLOYEE
6.15 INCHES SINCE 9 PM LAST NIGHT WITH 7.15 STORM TOTAL.
0508 AM FLASH FLOOD JAMESTOWN 40.12N 105.39W
09/12/2013 BOULDER CO EMERGENCY MNGR
SEVERAL MAJOR CREEK FLOODED WITH PEOPLE TRAPPED. CREEKS
INCLUDE COAL CREEK, LEFT HAND CANYON, 4 MILE CREEK, SAINT
VRAIN. PEOPLE ARE REPORTED TO BE TRAPPED ON THEIR ROOFS.
0505 AM HEAVY RAIN 1 W FIRESTONE 40.12N 104.95W
09/12/2013 M4.80 INCH WELD CO NWS EMPLOYEE
LOTS OF RAIN WITH COUNTY ROAD 18 AND 20 FLOODED. ROADS
PARALLEL TO I-25 AROUND COUNTY ROAD 11 FLOODED 6-8 INCHES
DEEP
0400 AM FLASH FLOOD 6 N BOULDER 40.11N 105.25W
09/12/2013 BOULDER CO EMERGENCY MNGR
20 FT WALL OF WATER MOVED DOWN LEFT HAND CANYON. A
FIREFIGHTER WAS TRAPPED IN A TREE BUT HAS BEEN RESCUED.
0236 AM HEAVY RAIN 9 WNW LYONS 40.27N 105.43W
09/12/2013 E0.00 INCH LARIMER CO TRAINED SPOTTER
ONE OF THE FOUR DAMS IN THE BIG ELK MEADOWS AREA HAS
BREACHED WHICH MAY COMPROMISE THE OTHER DAMS.
0228 AM FLASH FLOOD BOULDER 40.03N 105.25W
09/12/2013 BOULDER CO TRAINED SPOTTER
WATER TO A DEPTH OF 2 TWO FEET RUNNNG DOWN THE HAWTHORNE
ST IN THE NORTHERN PART OF BOULDER
0220 AM HEAVY RAIN LYONS 40.22N 105.27W
09/12/2013 M2.80 INCH BOULDER CO TRAINED SPOTTER
SINCE 6 30 PM LAST NIGHT
0130 AM HEAVY RAIN 2 S ESTES PARK 40.34N 105.52W
09/12/2013 M2.22 INCH LARIMER CO TRAINED SPOTTER
PAST 2 HOURS
0124 AM FLASH FLOOD BOULDER 40.03N 105.25W
09/12/2013 BOULDER CO TRAINED SPOTTER
SIGNIFICANT FLOODING AT THE JUSTICE CENTER IN DOWNTOWN
BOULDER
0102 AM FLASH FLOOD JAMESTOWN 40.12N 105.39W
09/12/2013 BOULDER CO EMERGENCY MNGR
*** 1 FATAL *** MULTIPLE HOMES COLLAPSED AND DESTROYED
NEAR JAMESTOWN.
0101 AM HEAVY RAIN 5 NE WARD 40.12N 105.44W
09/12/2013 M6.16 INCH BOULDER CO TRAINED SPOTTER
SINCE MONDAY. 4.04 INCHES FROM MIDNIGHT TO MIDNIGHT ON
THE 11TH
1210 AM HEAVY RAIN 1 NW BOULDER 40.04N 105.26W
09/12/2013 M5.50 INCH BOULDER CO TRAINED SPOTTER
4.00 INCHES PAST 4 HOURS
1130 PM HEAVY RAIN 2 SSW NIWOT 40.07N 105.17W
09/11/2013 M2.93 INCH BOULDER CO TRAINED SPOTTER
STORM TOTAL SO FAR WITH 0.79 INCHES PAST HOUR
1130 PM HEAVY RAIN 3 W FORT COLLINS 40.56N 105.13W
09/11/2013 M2.51 INCH LARIMER CO TRAINED SPOTTER
STORM TOTAL SINCE MONDAY. 1.53 INCHES PAST 15 HOURS
1126 PM HEAVY RAIN 5 E BOULDER 40.03N 105.16W
09/11/2013 M6.65 INCH BOULDER CO TRAINED SPOTTER
STORM TOTAL SINCE MONDAY WITH 0.36 INCHES PAST HOUR
1115 PM FLASH FLOOD 5 E LAPORTE 40.62N 105.03W
09/11/2013 LARIMER CO LAW ENFORCEMENT
ROAD CLOSED AT 27E AND 25E BETWEEN 52E AND 54E DUE TO
FLASH FLOODING.
1100 PM FLASH FLOOD 8 WSW LOVELAND 40.37N 105.21W
09/11/2013 LARIMER CO TRAINED SPOTTER
4.12 INCHES OF RAIN PAST 4 HOURS. ROADS ARE WASHED OUT
1039 PM FLASH FLOOD 12 N FORT COLLINS 40.73N 105.07W
09/11/2013 LARIMER CO TRAINED SPOTTER
ROAD CLOSED DUE TO WATER OVER THE ROAD
1039 PM FLASH FLOOD 18 WNW FORT COLLINS 40.65N 105.39W
09/11/2013 LARIMER CO TRAINED SPOTTER
HIGHWAY 14 FROM RUSTIC TO TEDS PLACE IS CLOSED DUE TO
FLOODING AND DEBRIS
1038 PM FLASH FLOOD 5 W BOULDER 40.03N 105.35W
09/11/2013 BOULDER CO TRAINED SPOTTER
INGRAM GULCH IS CLOSED AND WATER IS NOW FLOWING OVER GOLD
RUN ROAD.
1038 PM HEAVY RAIN 3 E LAFAYETTE 39.99N 105.04W
09/11/2013 M4.52 INCH BROOMFIELD CO TRAINED SPOTTER
2.97 INCHES SO FAR TODAY
1025 PM FLASH FLOOD 9 S BOULDER 39.90N 105.25W
09/11/2013 JEFFERSON CO EMERGENCY MNGR
FLOODING AND DEBRIS HIGHWAY 72 WEST OF HIGHWAY 93 AT THE
BASE OF COAL CREEK CANYON
&&
JKThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 12, 6:07 PM MDT | Flash Flood Warning | BOU | Larimer | 3 hr |
| Sep 12, 6:28 PM MDT | Flash Flood Warning | BOU | Lincoln | 4 hr |
| Sep 12, 7:23 PM MDT | Flash Flood Warning | BOU | Clear Creek, Gilpin, Jefferson, Park | 6 hr |
| Sep 12, 7:35 PM MDT | Areal Flood Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 6 more | 12 hr |
| Sep 12, 7:44 PM MDT | River Flood Warning | BOU | Boulder | 11 hr |
| Sep 12, 8:41 PM MDT | Areal Flood Advisory | BOU | Elbert, Lincoln | 3 hr |
| Sep 12, 9:03 PM MDT | Flash Flood Warning | BOU | Larimer | 11 hr |
| Sep 12, 9:35 PM MDT | Flash Flood Warning | BOU | Adams, Denver | 6 hr |
| Sep 12, 9:55 PM MDT | Flash Flood Warning | BOU | Larimer | 4 hr |
| Sep 12, 10:47 PM MDT | River Flood Warning | BOU | Douglas | 9 hr |
| Sep 12, 10:47 PM MDT | River Flood Warning | BOU | Larimer | 26 hr |
| Sep 12, 11:26 PM MDT | River Flood Advisory | BOU | Boulder | 30 hr |
| Sep 12, 11:38 PM MDT | River Flood Warning | BOU | Jefferson | 8 hr |
| Sep 12, 11:58 PM MDT | Flash Flood Warning | BOU | Boulder, Jefferson | 6 hr |
| Sep 13, 12:07 AM MDT | River Flood Warning | BOU | Jefferson | 24 hr |
| Sep 13, 12:09 AM MDT | Flash Flood Warning | BOU | Clear Creek, Gilpin, Jefferson, Park | 6 hr |
| Sep 13, 12:26 AM MDT | River Flood Warning | BOU | Larimer | 23 hr |
| Sep 13, 12:50 AM MDT | Flash Flood Warning | BOU | Lincoln | 3 hr |
| Sep 13, 7:34 AM MDT | Areal Flood Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 6 more | 24 hr |
| Sep 13, 5:20 PM MDT | Areal Flood Advisory | BOU | Adams, Denver, Jefferson | 85 min |
Nearby
Flash Flood Warnings in Colorado, 2013Every flash flood warning in 2013
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.