Alert archive / New Mexico / Flash Flood Warnings in 2012

Flash Flood Warning 9, NWS El Paso, TX

September 7, 2012Doña Ana County, New Mexico

NWS El Paso, TX issued this flash flood warning at Sep 7, 2012, 6:57 PM MDT for Doña Ana County, New Mexico. 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
Sep 7, 2012, 6:57 PM MDT (00:57 UTC)
Expired
Sep 7, 2012, 9:00 PM MDT
In force
2 hr
Issued by
NWS El Paso, TX
Area
Storm-based polygon
Flood severity
None

County Doña Ana County, NM

The radar

The El Paso radar (KEPZ), 89 km from the middle of the area, began a volume at 01:00 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

Santa Teresa, NM (KEPZ), launched 00:00Z, 1.0 hours before the alert went out and 89 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-pSkew-T log-p diagram, Santa Teresa, NM at 00:00Z on 2012-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Santa Teresa, NM at 00:00Z on 2012-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3009 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
46 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.

793 
WGUS54 KEPZ 080057
FFWEPZ
NMC013-080300-
/O.NEW.KEPZ.FF.W.0009.120908T0057Z-120908T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE EL PASO TX
657 PM MDT FRI SEP 7 2012

THE NATIONAL WEATHER SERVICE IN EL PASO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL DONA ANA COUNTY IN SOUTH CENTRAL NEW MEXICO...

* UNTIL 900 PM MDT

* AT 656 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
  WARNED AREA.

* LOCATIONS IMPACTED INCLUDE...
  RURAL AREAS OF CENTRAL DONA ANA COUNTY.

 HEAVY RAINFALL IS OCCURRING BETWEEN MILE MARKERS 22 TO 26 ON 
 HIGHWAY 185.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. IT ONLY TAKES A FEW INCHES OF SWIFTLY FLOWING WATER TO
CARRY VEHICLES AWAY.

&&

LAT...LON 3265 10714 3267 10707 3257 10697 3251 10703

$$

TRIPOLI
1 follow-up statement
314 
WGUS74 KEPZ 080227
FFSEPZ

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EL PASO TX
827 PM MDT FRI SEP 7 2012

NMC013-080300-
/O.CON.KEPZ.FF.W.0009.000000T0000Z-120908T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DONA ANA NM-
827 PM MDT FRI SEP 7 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CENTRAL DONA ANA COUNTY
UNTIL 900 PM MDT...

AT 816 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED
AREA.

AT 750 PM...STATE POLICE WERE UNABLE TO DRIVE PAST MILE MARKER 21 ON 
HIGHWAY 185. HEAVY RAIN HAS ENDED OVER IN THIS AREA...HOWEVER 
MODERATE RAIN CONTINUES TO FALL IN SOME AREAS OVER EAST SLOPES OF 
THE SIERRA DE LAS UVAS MOUNTAINS.  

LOCATIONS IMPACTED INCLUDE...
  RURAL AREAS OF CENTRAL DONA ANA COUNTY.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. IT ONLY TAKES A FEW INCHES OF SWIFTLY FLOWING WATER TO
CARRY VEHICLES AWAY.

&&

LAT...LON 3265 10714 3267 10707 3257 10697 3251 10703

$$

TRIPOLI

The office that day

Everything else NWS El Paso, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 7, 6:48 PM MDTAreal Flood AdvisoryEPZDoña Ana117 min
Sep 7, 7:31 PM MDTAreal Flood AdvisoryEPZDoña Ana119 min
Sep 7, 9:00 PM MDTAreal Flood AdvisoryEPZDoña Ana2 hr
Sep 7, 9:15 PM MDTAreal Flood AdvisoryEPZDoña Ana2 hr
Sep 7, 11:29 PM MDTAreal Flood AdvisoryEPZLuna2 hr

Nearby

Flash Flood Warnings in New Mexico, 2012Every flash flood warning in 2012

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.