Alert archive / New Mexico / Flash Flood Warnings in 2021

Flash Flood Warning 19, NWS El Paso, TX

July 11, 2021Sierra County, New Mexico

NWS El Paso, TX issued this flash flood warning at Jul 11, 2021, 6:24 PM MDT for Sierra 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 11, 2021, 6:24 PM MDT (00:24 UTC)
Expired
Jul 11, 2021, 9:30 PM MDT
In force
3 hr
Issued by
NWS El Paso, TX
Area
Storm-based polygon
Flood severity
None

County Sierra County, NM

The radar

The Holloman AFB radar (KHDX), 77 km from the middle of the area, began a volume at 00:23 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, 0.4 hours before the alert went out and 119 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 2021-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 751 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 00:00Z on 2021-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
751 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
2875 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

As transmitted.

514 
WGUS54 KEPZ 120024
FFWEPZ
NMC051-120330-
/O.NEW.KEPZ.FF.W.0019.210712T0024Z-210712T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service El Paso Tx/Santa Teresa NM
624 PM MDT Sun Jul 11 2021

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

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

* Until 930 PM MDT.

* At 624 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen. Additional rainfall amounts up to 1.5 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...
  Upham, Cutter and Spaceport America.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3308 10686 3288 10687 3283 10690 3278 10690
      3278 10701 3306 10706

FLASH FLOOD...RADAR INDICATED

$$

JG

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 6:01 PM MDTSevere Thunderstorm WarningEPZOtero44 min
Jul 11, 6:05 PM MDTSevere Thunderstorm WarningEPZDoña Ana, Otero, Sierra40 min
Jul 11, 6:08 PM MDTSevere Thunderstorm WarningEPZOtero52 min
Jul 11, 6:13 PM MDTSevere Thunderstorm WarningEPZDoña Ana, Sierra47 min
Jul 11, 6:19 PM MDTSevere Thunderstorm WarningEPZDoña Ana, Otero26 min
Jul 11, 6:28 PM MDTSevere Thunderstorm WarningEPZDoña Ana, Otero47 min
Jul 11, 6:33 PM MDTSevere Thunderstorm WarningEPZOtero42 min
Jul 11, 6:43 PM MDTSevere Thunderstorm WarningEPZDoña Ana, Sierra47 min
Jul 11, 6:46 PM MDTAreal Flood AdvisoryEPZOtero3 hr
Jul 11, 7:00 PM MDTSevere Thunderstorm WarningEPZDoña Ana, Otero45 min
Jul 11, 7:04 PM MDTSpecial Weather StatementEPZSierra41 min
Jul 11, 7:06 PM MDTSevere Thunderstorm WarningEPZDoña Ana39 min
Jul 11, 7:16 PM MDTSevere Thunderstorm WarningEPZOtero29 min
Jul 11, 7:22 PM MDTAreal Flood AdvisoryEPZDoña Ana3 hr
Jul 11, 7:31 PM MDTSevere Thunderstorm WarningEPZDoña Ana, Otero44 min
Jul 11, 7:42 PM MDTAreal Flood AdvisoryEPZDoña Ana3 hr
Jul 11, 7:45 PM MDTSevere Thunderstorm WarningEPZDoña Ana, Otero30 min
Jul 11, 7:57 PM MDTSevere Thunderstorm WarningEPZDoña Ana, Sierra48 min
Jul 11, 8:08 PM MDTAreal Flood AdvisoryEPZDoña Ana3 hr
Jul 11, 8:11 PM MDTSevere Thunderstorm WarningEPZDoña Ana49 min
Jul 11, 8:26 PM MDTFlash Flood WarningEPZDoña Ana3 hr
Jul 11, 8:28 PM MDTSevere Thunderstorm WarningEPZDoña Ana29 min
Jul 11, 8:49 PM MDTSpecial Weather StatementEPZDoña Ana26 min
Jul 11, 8:51 PM MDTSpecial Weather StatementEPZLuna24 min
Jul 11, 9:48 PM MDTSpecial Weather StatementEPZHidalgo27 min
Jul 11, 10:10 PM MDTDust Storm WarningEPZHidalgo2 hr
Jul 11, 10:14 PM MDTAreal Flood AdvisoryEPZDoña Ana3 hr
Jul 11, 10:27 PM MDTAreal Flood AdvisoryEPZLuna3 hr
Jul 11, 11:04 PM MDTAreal Flood AdvisoryEPZGrant3 hr

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.