Alert archive / New Mexico / Flash Flood Warnings in 2021

Flash Flood Warning 91, NWS El Paso, TX

September 4, 2021Otero County, New Mexico

NWS El Paso, TX issued this flash flood warning at Sep 4, 2021, 1:03 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: Sep 4, 2021, 1:03 PM MDT (19:03 UTC)
Expired: Sep 4, 2021, 4:15 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), 57 km from the middle of the area, began a volume at 19:04 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, 7.1 hours before the alert went out and 179 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: 761 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 1466 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -34 m²/s²
0-3 km storm-relative helicity: 11 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

287 
WGUS54 KEPZ 041903
FFWEPZ
NMC035-042215-
/O.NEW.KEPZ.FF.W.0091.210904T1903Z-210904T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service El Paso Tx/Santa Teresa NM
103 PM MDT Sat Sep 4 2021

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

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

* Until 415 PM MDT.

* At 103 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 and 2.5 inches of 
  rain have fallen. Additional rainfall amounts up to 1 inch are 
  possible in the warned area. 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 North Central 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.

In hilly terrain there are numerous of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 3315 10558 3318 10554 3319 10551 3313 10544
      3303 10539 3303 10552

FLASH FLOOD...RADAR INDICATED

$$

JD

2 follow-up statements

111 
WGUS74 KEPZ 042033
FFSEPZ

Flash Flood Statement
National Weather Service El Paso Tx/Santa Teresa NM
233 PM MDT Sat Sep 4 2021

NMC035-042215-
/O.CON.KEPZ.FF.W.0091.000000T0000Z-210904T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Otero NM-
233 PM MDT Sat Sep 4 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 415 PM MDT THIS 
AFTERNOON FOR NORTH CENTRAL OTERO COUNTY...

At 233 PM MDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 2 and 3.5 inches of rain have 
fallen. Additional rainfall amounts up to 0.5 inches are possible in 
the warned area. 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 North Central 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.

In hilly terrain there are numerous of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 3315 10558 3318 10554 3319 10551 3313 10544
      3303 10539 3303 10552

FLASH FLOOD...RADAR INDICATED

$$

JD

191 
WGUS74 KEPZ 042212
FFSEPZ

Flash Flood Statement
National Weather Service El Paso Tx/Santa Teresa NM
412 PM MDT Sat Sep 4 2021

NMC035-042222-
/O.EXP.KEPZ.FF.W.0091.000000T0000Z-210904T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Otero NM-
412 PM MDT Sat Sep 4 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 415 PM MDT THIS AFTERNOON FOR 
NORTH CENTRAL OTERO COUNTY...

Flooding is no longer expected to pose a threat. Please continue to 
heed remaining road closures.

A Flash Flood Watch remains in effect until 1200 AM MDT Sunday for a 
portion of south central New Mexico.

LAT...LON 3315 10558 3318 10554 3319 10551 3313 10544
      3303 10539 3303 10552

$$

JD

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 4, 6:02 AM MDT	Areal Flood Advisory	EPZ	Doña Ana, Sierra	118 min
Sep 4, 6:14 AM MDT	Areal Flood Advisory	EPZ	Sierra	2 hr
Sep 4, 11:45 AM MDT	Areal Flood Advisory	EPZ	Otero	3 hr
Sep 4, 12:03 PM MDT	Flash Flood Warning	EPZ	Otero	3 hr
Sep 4, 12:41 PM MDT	Areal Flood Advisory	EPZ	Otero	3 hr
Sep 4, 12:43 PM MDT	Areal Flood Advisory	EPZ	Otero	3 hr
Sep 4, 12:54 PM MDT	Areal Flood Advisory	EPZ	Otero	3 hr
Sep 4, 1:41 PM MDT	Areal Flood Advisory	EPZ	Grant, Sierra	3 hr
Sep 4, 2:03 PM MDT	Areal Flood Advisory	EPZ	Luna	117 min
Sep 4, 2:19 PM MDT	Areal Flood Advisory	EPZ	Grant	3 hr
Sep 4, 2:23 PM MDT	Flash Flood Warning	EPZ	Grant, Sierra	3 hr
Sep 4, 3:04 PM MDT	Areal Flood Advisory	EPZ	Grant, Sierra	3 hr
Sep 4, 3:13 PM MDT	Areal Flood Advisory	EPZ	Otero	3 hr
Sep 4, 4:00 PM MDT	Areal Flood Advisory	EPZ	Grant	2 hr
Sep 4, 4:16 PM MDT	Areal Flood Advisory	EPZ	Doña Ana	119 min
Sep 4, 4:23 PM MDT	Areal Flood Advisory	EPZ	Sierra	3 hr
Sep 4, 5:10 PM MDT	Areal Flood Advisory	EPZ	Sierra	3 hr

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.