Alert archive / Colorado / Flash Flood Warnings in 2013

Flash Flood Warning 39, NWS Pueblo, CO

September 12, 2013El Paso County, Colorado

NWS Pueblo, CO issued this flash flood warning at Sep 12, 2013, 3:24 AM MDT for El Paso County, Colorado. It was in force for 3 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, 3:24 AM MDT (09:24 UTC)
Expired: Sep 12, 2013, 6:30 AM MDT
In force: 3 hr
Issued by: NWS Pueblo, CO
Area: Storm-based polygon
Flood severity: None

County El Paso County, CO

The radar

The Pueblo radar (KPUX), 73 km from the middle of the area, began a volume at 09:24 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, 3:32 AM MDT	HEAVY RAIN 3.43	2 Wnw Colorado Springs, CO	SINCE 11 PM

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 9.4 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 362 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 580 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

242 
WGUS55 KPUB 120924
FFWPUB
COC041-121230-
/O.NEW.KPUB.FF.W.0039.130912T0924Z-130912T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
324 AM MDT THU SEP 12 2013

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL EL PASO COUNTY IN EAST CENTRAL COLORADO...

* UNTIL 630 AM MDT

* AT 323 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
  AREA OF VERY HEAVY RAINFALL ACROSS THE WARNED AREA. RAINFALL OF 2  
  TO 3 AND A HALF INCHES HAS FALLEN OVER WESTERN PORTIONS OF         
  COLORADO SPRINGS.  RAINFALL RATES OF 1 INCH PER HOUR ARE EXPECTED  
  TO CONTINUE PRODUCING CONTINUED FLASH FLOODING.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  COLORADO SPRINGS AND AIR FORCE ACADEMY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE. TURN
AROUND... DONT DROWN!

&&

LAT...LON 3902 10477 3875 10475 3873 10479 3876 10488
      3891 10489 3903 10490

$$

KAM

2 follow-up statements

691 
WGUS75 KPUB 121012
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
412 AM MDT THU SEP 12 2013

COC041-121230-
/O.CON.KPUB.FF.W.0039.000000T0000Z-130912T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EL PASO CO-
412 AM MDT THU SEP 12 2013

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WEST CENTRAL EL PASO
COUNTY UNTIL 630 AM MDT...

AT 405 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN 
AREA OF MODERATE TO HEAVY RAINFALL ACROSS THE WARNED AREA. A FEW 
RAIN GAUGES IN WESTERN COLORADO SPRINGS INDICATED THAT ADDITIONAL 
RAINFALL AMOUNTS SINCE 3 AM WERE AROUND 1 INCH. RADAR IS BEGINNING 
TO SHOW A DECREASE IN THE INTENSITY OF RAINFALL IN THE WARNING AREA.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO 
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING 
INCLUDE...COLORADO SPRINGS AND AIR FORCE ACADEMY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE.

&&

LAT...LON 3902 10477 3875 10475 3873 10479 3876 10488
      3891 10489 3903 10490

$$

018 
WGUS75 KPUB 121123
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
523 AM MDT THU SEP 12 2013

COC041-121138-
/O.CAN.KPUB.FF.W.0039.000000T0000Z-130912T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EL PASO CO-
523 AM MDT THU SEP 12 2013

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR WEST CENTRAL EL
PASO COUNTY IS CANCELLED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA WERE BEGINNING TO RECEDE...ENDING THE 
FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO 
YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3902 10477 3875 10475 3873 10479 3876 10488
      3891 10489 3903 10490

$$

The office that day

Everything else NWS Pueblo, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 11, 8:45 PM MDT	Flash Flood Warning	PUB	Pueblo	3 hr
Sep 11, 9:23 PM MDT	Areal Flood Advisory	PUB	El Paso	3 hr
Sep 11, 9:32 PM MDT	Flash Flood Warning	PUB	El Paso	3 hr
Sep 11, 9:36 PM MDT	Areal Flood Advisory	PUB	Fremont	114 min
Sep 12, 12:32 AM MDT	Flash Flood Warning	PUB	El Paso	3 hr
Sep 12, 1:43 AM MDT	Areal Flood Advisory	PUB	El Paso, Fremont, Teller	3 hr
Sep 12, 2:48 AM MDT	River Flood Warning	PUB	El Paso	2 hr
Sep 12, 3:45 AM MDT	Areal Flood Advisory	PUB	Fremont	3 hr
Sep 12, 6:37 AM MDT	Areal Flood Advisory	PUB	Fremont	3 hr
Sep 12, 8:33 AM MDT	Flash Flood Warning	PUB	El Paso, Fremont, Pueblo	3 hr
Sep 12, 10:01 AM MDT	Areal Flood Advisory	PUB	El Paso	3 hr
Sep 12, 10:18 AM MDT	Flash Flood Warning	PUB	El Paso	3 hr
Sep 12, 10:41 AM MDT	River Flood Warning	PUB	Fremont	4 hr
Sep 12, 4:15 PM MDT	Areal Flood Advisory	PUB	El Paso	5 hr
Sep 12, 5:08 PM MDT	Areal Flood Advisory	PUB	El Paso	3 hr
Sep 12, 5:26 PM MDT	Flash Flood Warning	PUB	El Paso	3 hr

Nearby

Flash Flood Warnings in Colorado, 2013 Every 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.