Alert archive / New Mexico / Flash Flood Warnings in 2021

Flash Flood Warning 31, NWS El Paso, TX

July 26, 2021Otero County, New Mexico

NWS El Paso, TX issued this flash flood warning at Jul 26, 2021, 5:03 PM 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: Jul 26, 2021, 5:03 PM MDT (23:03 UTC)
Expired: Jul 26, 2021, 8:15 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 El Paso radar (KEPZ), 73 km from the middle of the area, began a volume at 23:04 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, 11.1 hours before the alert went out and 73 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: 299 J/kg
Mixed-layer CIN: -151 J/kg
Mixed-layer LCL: 1680 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

154 
WGUS54 KEPZ 262303
FFWEPZ
NMC035-270215-
/O.NEW.KEPZ.FF.W.0031.210726T2303Z-210727T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service El Paso Tx/Santa Teresa NM
503 PM MDT Mon Jul 26 2021

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

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

* Until 815 PM MDT.

* At 503 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 and 2.5 inches of 
  rain have fallen. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  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...
  mainly rural areas of Southwestern Otero County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Excessive runoff from heavy rainfall will cause flooding of small 
creeks and streams, country roads, farmland, and other low lying 
spots.

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 3241 10625 3241 10618 3237 10617 3238 10617
      3238 10613 3236 10611 3233 10612 3230 10616
      3230 10625 3237 10629

FLASH FLOOD...RADAR INDICATED

$$

AB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 26, 1:58 AM MDT	Flash Flood Watch	EPZ	Otero	17 hr
Jul 26, 12:09 PM MDT	Areal Flood Advisory	EPZ	Otero	3 hr
Jul 26, 12:53 PM MDT	Areal Flood Advisory	EPZ	Sierra	3 hr
Jul 26, 1:05 PM MDT	Areal Flood Advisory	EPZ	Hidalgo	3 hr
Jul 26, 1:21 PM MDT	Areal Flood Advisory	EPZ	Otero	3 hr
Jul 26, 1:32 PM MDT	Areal Flood Advisory	EPZ	Doña Ana	3 hr
Jul 26, 1:38 PM MDT	Areal Flood Advisory	EPZ	Sierra	3 hr
Jul 26, 2:41 PM MDT	Areal Flood Advisory	EPZ	Doña Ana	3 hr
Jul 26, 3:20 PM MDT	Areal Flood Advisory	EPZ	Otero	115 min
Jul 26, 3:31 PM MDT	Areal Flood Advisory	EPZ	Otero	119 min
Jul 26, 4:02 PM MDT	Areal Flood Advisory	EPZ	Otero	3 hr
Jul 26, 4:07 PM MDT	Areal Flood Advisory	EPZ	Doña Ana, Otero	3 hr
Jul 26, 4:30 PM MDT	Special Weather Statement	EPZ	Otero	30 min
Jul 26, 4:48 PM MDT	Areal Flood Advisory	EPZ	Otero	117 min
Jul 26, 5:31 PM MDT	Special Weather Statement	EPZ	Otero	29 min

Nearby

Flash Flood Warnings in New Mexico, 2021 Every 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.