Alert archive / New Mexico / Flash Flood Warnings in 2021

Flash Flood Warning 33, NWS El Paso, TX

August 2, 2021Grant County, New Mexico

NWS El Paso, TX issued this flash flood warning at Aug 2, 2021, 3:19 PM MDT for Grant County, New Mexico. It was in force for 116 min. 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 2, 2021, 3:19 PM MDT (21:19 UTC)
Expired: Aug 2, 2021, 5:15 PM MDT
In force: 116 min
Issued by: NWS El Paso, TX
Area: Storm-based polygon
Flood severity: None

County Grant County, NM

The radar

The El Paso radar (KEPZ), 178 km from the middle of the area, began a volume at 21:19 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, 9.3 hours before the alert went out and 178 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: 177 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 1116 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: 37 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

662 
WGUS54 KEPZ 022119
FFWEPZ
NMC017-022315-
/O.NEW.KEPZ.FF.W.0033.210802T2119Z-210802T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service El Paso Tx/Santa Teresa NM
319 PM MDT Mon Aug 2 2021

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

* Flash Flood Warning for...
  North Central Grant County in southwestern New Mexico...

* Until 515 PM MDT.

* At 319 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...
  Camp Thunderbird and Upper Mimbres Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3301 10809 3300 10804 3295 10800 3291 10809
      3288 10817 3294 10818

FLASH FLOOD...RADAR INDICATED

$$

LR

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 8:09 PM MDT	Areal Flood Advisory	EPZ	Hidalgo	3 hr
Aug 1, 11:52 PM MDT	Areal Flood Advisory	EPZ	Doña Ana	3 hr
Aug 2, 12:45 PM MDT	Areal Flood Advisory	EPZ	Grant	2 hr
Aug 2, 1:05 PM MDT	Areal Flood Advisory	EPZ	Grant	115 min
Aug 2, 2:07 PM MDT	Special Weather Statement	EPZ		23 min
Aug 2, 2:59 PM MDT	Areal Flood Advisory	EPZ	Grant	2 hr
Aug 2, 3:23 PM MDT	Areal Flood Advisory	EPZ	Sierra	112 min
Aug 2, 3:39 PM MDT	Special Weather Statement	EPZ	Grant	36 min
Aug 2, 3:42 PM MDT	Special Weather Statement	EPZ	Grant	33 min
Aug 2, 4:01 PM MDT	Areal Flood Advisory	EPZ	Grant	119 min
Aug 2, 4:12 PM MDT	Areal Flood Warning	EPZ	Grant	2 hr
Aug 2, 4:14 PM MDT	Areal Flood Advisory	EPZ	Grant	2 hr
Aug 2, 4:26 PM MDT	Special Weather Statement	EPZ	Grant	34 min
Aug 2, 4:29 PM MDT	Areal Flood Advisory	EPZ	Grant	2 hr
Aug 2, 4:49 PM MDT	Areal Flood Advisory	EPZ	Grant	116 min
Aug 2, 5:05 PM MDT	Areal Flood Warning	EPZ	Grant	115 min
Aug 2, 5:14 PM MDT	Special Weather Statement	EPZ	Grant	31 min
Aug 2, 5:34 PM MDT	Special Weather Statement	EPZ	Hidalgo	26 min
Aug 2, 5:42 PM MDT	Severe Thunderstorm Warning	EPZ	Hidalgo	48 min
Aug 2, 5:50 PM MDT	Special Weather Statement	EPZ	Luna	25 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.