Alert archive / Colorado / Flash Flood Warnings in 2007
Flash Flood Warning 3, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this flash flood warning at Jun 11, 2007, 8:58 PM MDT for Sedgwick County, Colorado. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 11, 2007, 8:58 PM MDT (02:58 UTC)
- Expired
- Jun 12, 2007, 12:00 AM MDT
- In force
- 3 hr
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Sedgwick County, CO
The radar
The Goodland radar (KGLD), 177 km from the middle of the area, began a volume at 03:02 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, 3.0 hours before the alert went out and 134 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
- 68 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 3006 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- -18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS55 KBOU 120302 FFWBOU COC115-120600- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DENVER CO 858 PM MDT MON JUN 11 2007 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * FLASH FLOOD WARNING FOR... EASTERN SEDGWICK COUNTY IN NORTHEAST COLORADO * UNTIL MIDNIGHT MDT * AT 858 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM 6 MILES NORTHEAST OF SIXTEEN-MILE CORNER...OR ABOUT 15 MILES SOUTHEAST OF JULESBURG. THIS STORM WAS MOVING NORTHEAST AT 15 MPH. OTHER STORMS WITH HEAVY RAIN WERE REDEVELOPING OVER SEDGWICK COUNTY AND WILL MOVE ACROSS THE WARNING AREA OVER THE NEXT 2 HOURS. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SIXTEEN-MILE CORNER. DOPPLER RADAR ESTIMATES THAT BETWEEN 2 AND 3 INCHES OF RAIN HAS FALLEN ACROSS THE SOUTHEASTERN HALF OF SEDGWICK COUNTY THIS EVENING. MORE STORMS WITH HEAVY RAIN WILL CONTINUE TO MOVE ACROSS THE WARNING AREA LATE THIS EVENING...EACH CAPABLE OF PRODUCING ANOTHER 1 TO 1.5 INCHES OF RAIN IN 30 MINUTES. SAND CREEK AND ITS TRIBUTARIES WILL BE ESPECIALLY VULNERABLE TO FLASH FLOODING. 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. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM MDT MONDAY EVENING FOR NORTHEAST COLORADO. LAT...LON 4075 10205 4099 10205 4088 10239 4075 10245 $$ BARJENBRUCH
3 follow-up statements
000 WGUS75 KBOU 120414 FFSBOU FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DENVER CO 1009 PM MDT MON JUN 11 2007 COC115-120600- SEDGWICK CO- 1009 PM MDT MON JUN 11 2007 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT FOR EASTERN SEDGWICK COUNTY... AT 1009 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED ANOTHER AREA OF THUNDERSTORMS WITH HEAVY RAIN MOVING INTO EASTERN SEDGWICK COUNTY. THESE STORMS WILL BE CAPABLE OF PRODUCING ANOTHER ONE HALF TO ONE AND ONE HALF INCHES OF RAIN BEFORE MIDNIGHT. LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SIXTEEN-MILE CORNER. DOPPLER RADAR ESTIMATES THAT BETWEEN 2 AND 4 INCHES OF RAIN HAS ALREADY FALLEN ACROSS THE WARNED AREA THIS EVENING. ADDITIONAL HEAVY RAIN WILL CAUSE FURTHER FLASH FLOODING...ESPECIALLY AROUND SIXTEEN-MILE CORNER...SAND CREEK...AND ITS TRIBUTARIES. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. LAT...LON 4075 10205 4099 10205 4088 10239 4075 10245 $$ BARJENBRUCH
000 WGUS75 KBOU 120528 FFSBOU FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DENVER CO 1126 PM MDT MON JUN 11 2007 COC115-120600- SEDGWICK CO- 1126 PM MDT MON JUN 11 2007 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT FOR EASTERN SEDGWICK COUNTY... AT 1126 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT HEAVY RAIN WAS BEGINNING TO MOVE OUT OF EASTERN SEDGWICK COUNTY. LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SIXTEEN-MILE CORNER. DOPPLER RADAR ESTIMATES THAT BETWEEN 2 AND 5 INCHES OF RAIN FELL OVER A LARGE PORTION OF EASTERN SEDGWICK COUNTY THIS EVENING. THE HEAVIEST RAIN FELL NORTHEAST OF SIXTEEN-MILE CORNER IN THE SAND CREEK BASIN AND ITS TRIBUTARIES. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. LAT...LON 4075 10205 4099 10205 4088 10239 4075 10245 $$ BARJENBRUCH
000 WGUS75 KBOU 120556 FFSBOU FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DENVER CO 1153 PM MDT MON JUN 11 2007 COC115-120603- SEDGWICK CO- 1153 PM MDT MON JUN 11 2007 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR EASTERN SEDGWICK COUNTY... MOST OF THE THUNDERSTORMS WITH HEAVY RAINFALL HAVE MOVED OUT OF THE AREA. IN ADDITION...THE SEDGWICK COUNTY SHERIFF REPORTED NO FLOODING TROUBLES. A FEW SHOWERS AND STORMS MAY STILL BRING A BRIEF PERIOD OF HEAVY RAIN TO THE AREA OVERNIGHT. HOWEVER...ADDITIONAL RAINFALL AMOUNTS ARE NOT EXPECTED TO BE ENOUGH TO PRODUCE FLOODING. LAT...LON 4075 10205 4099 10205 4088 10239 4075 10245 $$ BARJENBRUCH
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 8:05 PM MDT | Severe Thunderstorm Warning | BOU | Phillips | 25 min |
| Jun 11, 10:24 PM MDT | Severe Thunderstorm Warning | BOU | Phillips | 19 min |
| Jun 12, 9:23 AM MDT | Flash Flood Watch | BOU | Logan, Phillips, Sedgwick | 16 hr |
| Jun 12, 11:15 AM MDT | Flash Flood Warning | BOU | Phillips | 2 hr |
| Jun 12, 11:46 AM MDT | Flash Flood Warning | BOU | Sedgwick | 3 hr |
| Jun 12, 1:14 PM MDT | Flash Flood Warning | BOU | Phillips | 3 hr |
| Jun 12, 2:41 PM MDT | Flash Flood Warning | BOU | Sedgwick | 94 min |
| Jun 12, 4:14 PM MDT | Flash Flood Warning | BOU | Phillips, Sedgwick | 6 hr |
| Jun 12, 4:36 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 39 min |
| Jun 12, 5:13 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 47 min |
Nearby
Flash Flood Warnings in Colorado, 2007Every flash flood warning in 2007
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.