Alert archive / Texas / Areal Flood Advisories in 2021

Areal Flood Advisory 310, NWS El Paso, TX

August 15, 2021El Paso County, Texas

NWS El Paso, TX issued this areal flood advisory at Aug 15, 2021, 1:00 AM MDT for El Paso County, Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Aug 15, 2021, 1:00 AM MDT (07:00 UTC)
Expired: Aug 15, 2021, 7:00 AM MDT
In force: 6 hr
Issued by: NWS El Paso, TX
Area: Storm-based polygon

County El Paso County, TX

The radar

The El Paso radar (KEPZ), 56 km from the middle of the area, began a volume at 07:04 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 00:00Z, 7.0 hours before the alert went out and 56 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: 351 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 1077 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 90 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

870 
WGUS84 KEPZ 150700
FLSEPZ

Flood Advisory
National Weather Service El Paso Tx/Santa Teresa NM
100 AM MDT Sun Aug 15 2021

TXC141-151300-
/O.NEW.KEPZ.FA.Y.0310.210815T0700Z-210815T1300Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
El Paso TX-
100 AM MDT Sun Aug 15 2021

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

* Flood Advisory for Poor Drainage Areas for...
  Southeastern El Paso County in western Texas...

* Until 700 AM MDT.

* At 100 AM MDT, Doppler radar indicated heavy rain due to 
  thunderstorms. Overflowing poor drainage areas will cause minor 
  flooding in the advisory area. Between 0.5 and 1 inch of rain has 
  already fallen.

* Some locations that will experience flooding include...
  East El Paso, Far East El Paso, Mission Valley, Horizon City, 
  Clint, Fabens, Tornillo, San Elizario, Socorro, Sparks, Dairyland, 
  Agua Dulce, Colonia del Paso, Lake Way Estates and Montana Vista.

Additional rainfall of up to 0.5 to 1 inch is expected over the 
area. This additional rain will result in minor flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Excessive runoff from heavy rainfall will cause flooding of arroyos 
and washes, urban areas, highways, streets and underpasses. Do not 
cross flooded roads. Find an alternate route.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3168 10634 3181 10629 3183 10616 3179 10606
      3141 10610 3142 10611 3143 10614 3146 10618
      3147 10621 3154 10625 3156 10628 3162 10630

$$

TAB

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 15, 3:18 AM MDT	Areal Flood Advisory	EPZ	Hudspeth	4 hr

Nearby

Areal Flood Advisories in Texas, 2021 Every areal flood advisory 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.