Alert archive / Colorado / Flash Flood Warnings in 2013
Flash Flood Warning 2, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this flash flood warning at Jul 7, 2013, 7:04 PM MDT for Logan 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 outline as issued.
The facts
- Issued
- Jul 7, 2013, 7:04 PM MDT (01:04 UTC)
- Expired
- Jul 7, 2013, 10:00 PM MDT
- In force
- 3 hr
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Flood severity
- None
County Logan County, CO
The radar
The Denver radar (KFTG), 163 km from the middle of the area, began a volume at 01:05 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, 1.1 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2812 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- -79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
089 WGUS55 KBOU 080104 FFWBOU COC075-080400- /O.NEW.KBOU.FF.W.0002.130708T0104Z-130708T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DENVER CO 704 PM MDT SUN JUL 7 2013 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTH CENTRAL LOGAN COUNTY IN NORTHEAST COLORADO... * UNTIL 1000 PM MDT * AT 703 PM MDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... ILIFF. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE. REMAIN ALERT FOR FLOODING EVEN IN LOCATIONS NOT RECEIVING RAIN. ARROYOS...STREAMS AND RIVERS CAN BECOME RAGING KILLER CURRENTS IN A MATTER OF MINUTES...EVEN FROM DISTANT RAINFALL. && LAT...LON 4077 10286 4044 10287 4044 10316 4077 10314 $$ RPK
3 follow-up statements
721 WGUS75 KBOU 080133 FFSBOU FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DENVER CO 733 PM MDT SUN JUL 7 2013 COC075-080400- /O.CON.KBOU.FF.W.0002.000000T0000Z-130708T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LOGAN CO- 733 PM MDT SUN JUL 7 2013 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 PM MDT FOR SOUTH CENTRAL LOGAN COUNTY... AT 730 PM MDT...DOPPLER RADAR INDICATED RAIN HAD ENDED OVER SOUTH CENTRAL LOGAN COUNTY. OVER THREE INCHES OF RAIN HAS FALLEN IN THE LAST 90 MINUTES. FLASH FLOODING IS EXPECTED TO OCCUR ESPECIALLY FROM SOUTH OF ILIFF TO THE REIRADON HILL AREA AND ALONG SANDY CREEK . SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... ILIFF. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. && LAT...LON 4077 10286 4044 10287 4044 10316 4077 10314 $$ RPK
606 WGUS75 KBOU 080240 FFSBOU FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DENVER CO 840 PM MDT SUN JUL 7 2013 COC075-080400- /O.CON.KBOU.FF.W.0002.000000T0000Z-130708T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LOGAN CO- 840 PM MDT SUN JUL 7 2013 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 PM MDT FOR SOUTH CENTRAL LOGAN COUNTY... AT 837 PM MDT...DOPPLER RADAR INDICATED RAIN HAD ENDED ACROSS THE WARNED AREA. OVER 3 INCHES OF RAIN HAVE FALLEN EARLIER FROM NEAR ILIFF TO REIRADON HILL OVER SOUTH CENTRAL LOGAN COUNTY. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... ILIFF. THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES... SANDY CREEK. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. && LAT...LON 4077 10286 4044 10287 4044 10316 4077 10314 $$ RPK
042 WGUS75 KBOU 080350 FFSBOU FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DENVER CO 950 PM MDT SUN JUL 7 2013 COC075-080400- /O.EXP.KBOU.FF.W.0002.000000T0000Z-130708T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LOGAN CO- 950 PM MDT SUN JUL 7 2013 ...THE FLASH FLOOD WARNING FOR CENTRAL LOGAN COUNTY WILL EXPIRE AT 1000 PM MDT... FLOOD WATERS HAVE RECEDED...AND ARE NO LONGER EXPECTED TO POSE A THREAT TO LIFE OR PROPERTY. LAT...LON 4077 10286 4044 10287 4044 10316 4077 10314 $$ RPK
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 6:02 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 43 min |
| Jul 7, 6:28 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Washington | 47 min |
| Jul 7, 6:29 PM MDT | Areal Flood Advisory | BOU | Logan | 91 min |
| Jul 7, 6:38 PM MDT | Areal Flood Advisory | BOU | Elbert | 97 min |
| Jul 7, 6:42 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 48 min |
| Jul 7, 7:14 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 31 min |
| Jul 7, 8:06 PM MDT | Special Weather Statement | BOU | Phillips | 24 min |
| Jul 7, 8:48 PM MDT | Special Weather Statement | BOU | Sedgwick | 27 min |
| Jul 8, 2:33 PM MDT | Special Weather Statement | BOU | Broomfield | 27 min |
| Jul 8, 3:04 PM MDT | Special Weather Statement | BOU | Broomfield | 41 min |
| Jul 8, 5:10 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips, Sedgwick | 50 min |
| Jul 8, 5:29 PM MDT | Special Weather Statement | BOU | Lincoln | 31 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.