Alert archive / New Mexico / Flash Flood Warnings in 2021

Flash Flood Warning 66, NWS El Paso, TX

August 14, 2021Otero County, New Mexico

NWS El Paso, TX issued this flash flood warning at Aug 14, 2021, 10:25 AM MDT for Otero County, New Mexico. 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
Aug 14, 2021, 10:25 AM MDT (16:25 UTC)
Expired
Aug 14, 2021, 1:15 PM MDT
In force
3 hr
Issued by
NWS El Paso, TX
Area
Storm-based polygon
Flood severity
None

County Otero County, NM

The radar

The Holloman AFB radar (KHDX), 69 km from the middle of the area, began a volume at 16:25 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 12:00Z, 4.4 hours before the alert went out and 167 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 12:00Z on 2021-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 533 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2021-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
533 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
541 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

762 
WGUS54 KEPZ 141625
FFWEPZ
NMC035-141915-
/O.NEW.KEPZ.FF.W.0066.210814T1625Z-210814T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service El Paso Tx/Santa Teresa NM
1025 AM MDT Sat Aug 14 2021

The National Weather Service in El Paso Tx/Santa Teresa has issued a

* Flash Flood Warning for...
  Central Otero County in south central New Mexico...

* Until 115 PM MDT.

* At 1025 AM MDT, trained weather spotters reported the Rio Penasco 
  out of its banks across Eastern Otero County, including Mayhill. 
  River gauges in the area show the River still rising. Light to 
  Moderate rain continues in the area.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Trained spotters reported.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Mayhill, Weed, Sixteen Springs, James Canyon and Cox Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Flooding is occurring. It is important to know where you are 
relative to streams, rivers, or creeks which can become killers in 
heavy rains. Campers and hikers should avoid streams or creeks.

&&

LAT...LON 3281 10535 3278 10546 3281 10561 3289 10567
      3293 10569 3303 10534 3299 10532 3298 10532
      3296 10532 3296 10534 3296 10535 3288 10535
      3287 10535 3283 10535

FLASH FLOOD...OBSERVED

$$

AB
1 follow-up statement
673 
WGUS74 KEPZ 141912
FFSEPZ

Flash Flood Statement
National Weather Service El Paso Tx/Santa Teresa NM
112 PM MDT Sat Aug 14 2021

NMC035-141922-
/O.EXP.KEPZ.FF.W.0066.000000T0000Z-210814T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Otero NM-
112 PM MDT Sat Aug 14 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 115 PM MDT THIS AFTERNOON FOR 
CENTRAL OTERO COUNTY...

This flood warning has been replaced with an areal flood warning, 
since water is still flowing and causing a problem.

A Flash Flood Watch remains in effect until 1200 AM MDT Sunday for 
portions of New Mexico and southwest Texas.

LAT...LON 3281 10535 3278 10546 3281 10561 3289 10567
      3293 10569 3303 10534 3299 10532 3298 10532
      3296 10532 3296 10534 3296 10535 3288 10535
      3287 10535 3283 10535

$$

TSB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 6:17 PM MDTFlash Flood WarningEPZDoña Ana3 hr
Aug 13, 8:21 PM MDTAreal Flood WarningEPZDoña Ana6 hr
Aug 14, 3:27 AM MDTFlash Flood Warning Considerable damage threatEPZDoña Ana, Otero3 hr
Aug 14, 4:48 AM MDTFlash Flood WarningEPZDoña Ana7 hr
Aug 14, 6:22 AM MDTFlash Flood WarningEPZDoña Ana6 hr
Aug 14, 7:43 AM MDTFlash Flood WarningEPZOtero3 hr
Aug 14, 8:20 AM MDTFlash Flood WarningEPZDoña Ana3 hr
Aug 14, 9:58 AM MDTFlash Flood WarningEPZLuna3 hr
Aug 14, 10:09 AM MDTFlash Flood Warning EmergencyCatastrophic damage threatEPZDoña Ana3 hr
Aug 14, 11:01 AM MDTAreal Flood AdvisoryEPZOtero, Sierra7 hr
Aug 14, 11:13 AM MDTAreal Flood AdvisoryEPZLuna2 hr
Aug 14, 1:06 PM MDTAreal Flood WarningEPZOtero5 hr
Aug 14, 1:16 PM MDTAreal Flood WarningEPZDoña Ana6 hr
Aug 14, 1:58 PM MDTAreal Flood AdvisoryEPZLuna2 hr
Aug 14, 2:55 PM MDTFlash Flood WarningEPZDoña Ana, Otero2 hr
Aug 14, 3:18 PM MDTFlash Flood WarningEPZDoña Ana117 min

Nearby

Flash Flood Warnings in New Mexico, 2021Every flash flood warning in 2021

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.