Alert archive / New Mexico / Flash Flood Warnings in 2021

Flash Flood Warning 9, NWS El Paso, TX

July 1, 2021Otero County, New Mexico

NWS El Paso, TX issued this flash flood warning at Jul 1, 2021, 4:18 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 1, 2021, 4:18 PM MDT (22:18 UTC)
Expired
Jul 1, 2021, 7:30 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), 75 km from the middle of the area, began a volume at 22:20 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, 10.3 hours before the alert went out and 163 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 2021-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 966 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 2021-07-01The 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
966 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
903 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

481 
WGUS54 KEPZ 012218
FFWEPZ
NMC035-020130-
/O.NEW.KEPZ.FF.W.0009.210701T2218Z-210702T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service El Paso Tx/Santa Teresa NM
418 PM MDT Thu Jul 1 2021

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

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

* Until 730 PM MDT.

* At 417 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen over the last hour, in addition to several inches over 
  the past 3 to 5 days. Flash flooding is ongoing or expected to 
  begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Doppler radar.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  mainly rural areas of Northeastern Otero County

Additional rainfall amounts of 0.5 to 1 inch are possible in the 
warned area.

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 hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 3275 10535 3277 10545 3283 10547 3290 10544
      3292 10535 3288 10535 3286 10535 3283 10535
      3279 10535 3278 10535 3276 10535

FLASH FLOOD...RADAR INDICATED

$$

JD
1 follow-up statement
854 
WGUS74 KEPZ 020125
FFSEPZ

Flash Flood Statement
National Weather Service El Paso Tx/Santa Teresa NM
725 PM MDT Thu Jul 1 2021

NMC035-020135-
/O.EXP.KEPZ.FF.W.0009.000000T0000Z-210702T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Otero NM-
725 PM MDT Thu Jul 1 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 730 PM MDT THIS EVENING FOR 
NORTHEASTERN OTERO COUNTY...

The heavy rain has ended. 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 for portions 
of south central New Mexico and southwest New Mexico.

LAT...LON 3275 10535 3277 10545 3283 10547 3290 10544
      3292 10535 3288 10535 3286 10535 3283 10535
      3279 10535 3278 10535 3276 10535

$$

JD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 8:57 AM MDTAreal Flood AdvisoryEPZDoña Ana3 hr
Jul 1, 9:34 AM MDTAreal Flood AdvisoryEPZLuna3 hr
Jul 1, 11:21 AM MDTAreal Flood AdvisoryEPZDoña Ana3 hr
Jul 1, 12:05 PM MDTAreal Flood AdvisoryEPZSierra115 min
Jul 1, 12:42 PM MDTAreal Flood AdvisoryEPZSierra3 hr
Jul 1, 12:45 PM MDTAreal Flood AdvisoryEPZSierra3 hr
Jul 1, 12:51 PM MDTAreal Flood AdvisoryEPZOtero3 hr
Jul 1, 12:56 PM MDTAreal Flood AdvisoryEPZDoña Ana3 hr
Jul 1, 1:02 PM MDTAreal Flood AdvisoryEPZGrant, Hidalgo3 hr
Jul 1, 1:16 PM MDTAreal Flood AdvisoryEPZGrant, Hidalgo, Luna3 hr
Jul 1, 1:41 PM MDTAreal Flood AdvisoryEPZDoña Ana2 hr
Jul 1, 2:20 PM MDTFlash Flood WarningEPZOtero3 hr
Jul 1, 2:27 PM MDTAreal Flood AdvisoryEPZOtero3 hr
Jul 1, 3:02 PM MDTFlash Flood WarningEPZOtero3 hr
Jul 1, 3:04 PM MDTAreal Flood AdvisoryEPZDoña Ana, Luna116 min
Jul 1, 3:25 PM MDTAreal Flood AdvisoryEPZDoña Ana3 hr
Jul 1, 3:31 PM MDTAreal Flood AdvisoryEPZGrant, Luna, Sierra3 hr
Jul 1, 3:52 PM MDTAreal Flood AdvisoryEPZOtero3 hr
Jul 1, 3:56 PM MDTAreal Flood AdvisoryEPZGrant3 hr
Jul 1, 4:06 PM MDTAreal Flood AdvisoryEPZDoña Ana, Otero3 hr
Jul 1, 4:20 PM MDTAreal Flood AdvisoryEPZGrant3 hr
Jul 1, 4:34 PM MDTAreal Flood AdvisoryEPZSierra116 min
Jul 1, 5:15 PM MDTFlash Flood WarningEPZOtero3 hr
Jul 1, 5:38 PM MDTAreal Flood AdvisoryEPZOtero112 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.