Alert archive / Colorado / Flash Flood Warnings in 2010
Flash Flood Warning 13, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this flash flood warning at Jul 6, 2010, 7:27 PM MDT for Adams County, Arapahoe County, Elbert County, Colorado. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 6, 2010, 7:27 PM MDT (01:27 UTC)
- Expired
- Jul 6, 2010, 9:32 PM MDT
- In force
- 2 hr
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Adams County, CO, Arapahoe County, CO, Elbert County, CO
The radar
The Denver radar (KFTG), 26 km from the middle of the area, began a volume at 01:29 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.
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 1.5 hours before the alert went out and 88 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
- 152 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 3141 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
775 WGUS55 KBOU 070127 FFWBOU COC001-005-039-070430- /O.NEW.KBOU.FF.W.0013.100707T0127Z-100707T0430Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DENVER CO 727 PM MDT TUE JUL 6 2010 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTH CENTRAL ELBERT COUNTY IN EAST CENTRAL COLORADO CENTRAL ARAPAHOE COUNTY IN NORTHEAST COLORADO CENTRAL ADAMS COUNTY IN NORTHEAST COLORADO * UNTIL 1030 PM MDT * AT 724 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM 9 MILES SOUTHWEST OF BYERS...OR 37 MILES EAST OF DENVER. THIS STORM WAS MOVING NORTH AT 10 MPH. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO STRASBURG AND BYERS. DOPPLER RADAR ESTIMATES THAT BETWEEN ONE AND A HALF AND TWO AND A HALF INCHES OF RAIN HAS FALLEN FROM THIS STORM IN THE LAST 45 MINUTES. RAINFALL APPEARS TO HAVE CONCENTRATED OVER THE WOLF CREEK...COMANCHE CREEK AND WEST BIJOU CREEK DRAINAGES IN CENTRAL ARAPAHOE COUNTY. RISES ALONG THESE CREEKS WILL BE MOVING NORTHWARD WITH TIME. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. TURN AROUND...DO NOT DROWN. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT TUESDAY EVENING FOR NORTHEAST COLORADO. && LAT...LON 3990 10423 3990 10412 3951 10425 3951 10443 $$
2 follow-up statements
870 WGUS75 KBOU 070222 FFSBOU FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DENVER CO 822 PM MDT TUE JUL 6 2010 COC001-005-039-070430- /O.CON.KBOU.FF.W.0013.000000T0000Z-100707T0430Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ ELBERT CO-ARAPAHOE CO-ADAMS CO- 822 PM MDT TUE JUL 6 2010 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM MDT FOR CENTRAL ADAMS...CENTRAL ARAPAHOE AND NORTH CENTRAL ELBERT COUNTIES... AT 821 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED RAIN HAD ENDED. LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO STRASBURG AND BYERS. DOPPLER RADAR ESTIMATES THAT AROUND 2 INCHES OF RAIN FELL EARLIER FROM THUNDERSTORMS THIS EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER CLIMB TO HIGHER GROUND. && LAT...LON 3990 10423 3990 10412 3951 10425 3951 10443 $$
381 WGUS75 KBOU 070332 FFSBOU FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DENVER CO 932 PM MDT TUE JUL 6 2010 COC001-005-039-070342- /O.CAN.KBOU.FF.W.0013.000000T0000Z-100707T0430Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ ELBERT CO-ARAPAHOE CO-ADAMS CO- 932 PM MDT TUE JUL 6 2010 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL ADAMS... CENTRAL ARAPAHOE AND NORTH CENTRAL ELBERT COUNTIES... RAIN HAS ENDED AND FLASH FLOODING IS NO LONGER EXPECTED. LAT...LON 3990 10423 3990 10412 3951 10425 3951 10443 $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 6:04 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Sedgwick | 28 min |
| Jul 6, 6:18 PM MDT | Severe Thunderstorm Warning | BOU | Douglas, Elbert | 27 min |
| Jul 6, 6:41 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Elbert, Logan, Morgan, Weld | 49 min |
| Jul 6, 6:52 PM MDT | Areal Flood Advisory | BOU | Morgan | 83 min |
| Jul 6, 6:53 PM MDT | Severe Thunderstorm Warning | BOU | Douglas, Elbert | 22 min |
| Jul 6, 9:11 PM MDT | Areal Flood Advisory | BOU | Larimer | 94 min |
| Jul 7, 5:13 AM MDT | Areal Flood Advisory | BOU | Sedgwick | 12 hr |
| Jul 7, 2:47 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 28 min |
| Jul 7, 4:49 PM MDT | Areal Flood Advisory | BOU | Sedgwick | 24 hr |
Nearby
Flash Flood Warnings in Colorado, 2010Every flash flood warning in 2010
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.