Alert archive / New Mexico / Flash Flood Warnings in 2021

Flash Flood Warning 48, NWS El Paso, TX

August 13, 2021Sierra County, New Mexico

NWS El Paso, TX issued this flash flood warning at Aug 13, 2021, 12:42 AM 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
Aug 13, 2021, 12:42 AM MDT (06:42 UTC)
Expired
Aug 13, 2021, 3:45 AM 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), 87 km from the middle of the area, began a volume at 06:40 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, 6.7 hours before the alert went out and 164 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 2021-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 676 joules per kilogram.LCLEL10008507005003002001001 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 2021-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
676 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1977 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

486 
WGUS54 KEPZ 130642
FFWEPZ
NMC051-130945-
/O.NEW.KEPZ.FF.W.0048.210813T0642Z-210813T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service El Paso Tx/Santa Teresa NM
1242 AM MDT Fri Aug 13 2021

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

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

* Until 345 AM MDT.

* At 1242 AM 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 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 Sierra County

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 small 
creeks and streams, country roads, farmland, and other low lying 
spots.

&&

LAT...LON 3334 10697 3326 10700 3329 10706 3336 10704

FLASH FLOOD...RADAR INDICATED

$$

JD
2 follow-up statements
540 
WGUS74 KEPZ 130805
FFSEPZ

Flash Flood Statement
National Weather Service El Paso Tx/Santa Teresa NM
205 AM MDT Fri Aug 13 2021

NMC051-130945-
/O.CON.KEPZ.FF.W.0048.000000T0000Z-210813T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sierra NM-
205 AM MDT Fri Aug 13 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 AM MDT EARLY THIS 
MORNING FOR NORTH CENTRAL SIERRA COUNTY...

At 205 AM MDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 1.5 and 3 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 Sierra County

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 small 
creeks and streams, country roads, farmland, and other low lying 
spots.

&&

LAT...LON 3334 10697 3326 10700 3329 10706 3336 10704

FLASH FLOOD...RADAR INDICATED

$$

JD
688 
WGUS74 KEPZ 130941
FFSEPZ

Flash Flood Statement
National Weather Service El Paso Tx/Santa Teresa NM
341 AM MDT Fri Aug 13 2021

NMC051-130951-
/O.EXP.KEPZ.FF.W.0048.000000T0000Z-210813T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sierra NM-
341 AM MDT Fri Aug 13 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 345 AM MDT EARLY THIS MORNING 
FOR NORTH CENTRAL SIERRA COUNTY...

Flood waters have receded. 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 900 AM MDT Saturday for 
portions of New Mexico and southwest Texas.

LAT...LON 3334 10697 3326 10700 3329 10706 3336 10704

$$

JD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 6:16 PM MDTAreal Flood AdvisoryEPZDoña Ana26 min
Aug 12, 6:20 PM MDTAreal Flood AdvisoryEPZDoña Ana115 min
Aug 12, 6:42 PM MDTFlash Flood WarningEPZDoña Ana3 hr
Aug 12, 6:55 PM MDTSpecial Weather StatementEPZ35 min
Aug 12, 6:57 PM MDTAreal Flood AdvisoryEPZDoña Ana2 hr
Aug 12, 7:23 PM MDTFlash Flood WarningEPZDoña Ana3 hr
Aug 12, 7:55 PM MDTFlash Flood WarningEPZDoña Ana4 hr
Aug 12, 8:05 PM MDTFlash Flood WarningEPZDoña Ana4 hr
Aug 12, 11:33 PM MDTAreal Flood AdvisoryEPZSierra5 hr
Aug 12, 11:56 PM MDTAreal Flood AdvisoryEPZSierra5 hr
Aug 13, 12:14 AM MDTFlash Flood WarningEPZSierra3 hr
Aug 13, 12:16 AM MDTFlash Flood WarningEPZSierra2 hr
Aug 13, 12:20 AM MDTAreal Flood AdvisoryEPZGrant3 hr
Aug 13, 12:32 AM MDTAreal Flood AdvisoryEPZSierra3 hr
Aug 13, 1:09 AM MDTFlash Flood WarningEPZSierra3 hr
Aug 13, 1:34 AM MDTAreal Flood AdvisoryEPZSierra3 hr
Aug 13, 2:30 AM MDTAreal Flood AdvisoryEPZOtero3 hr
Aug 13, 12:02 PM MDTAreal Flood AdvisoryEPZHidalgo118 min
Aug 13, 12:24 PM MDTAreal Flood AdvisoryEPZHidalgo2 hr
Aug 13, 12:30 PM MDTAreal Flood AdvisoryEPZHidalgo7 min
Aug 13, 12:37 PM MDTFlash Flood WarningEPZHidalgo113 min
Aug 13, 12:51 PM MDTAreal Flood AdvisoryEPZDoña Ana114 min
Aug 13, 1:20 PM MDTAreal Flood AdvisoryEPZOtero115 min
Aug 13, 2:47 PM MDTAreal Flood AdvisoryEPZOtero26 min
Aug 13, 2:52 PM MDTFlash Flood WarningEPZOtero3 hr
Aug 13, 3:13 PM MDTFlash Flood WarningEPZOtero3 hr
Aug 13, 3:21 PM MDTAreal Flood AdvisoryEPZOtero114 min
Aug 13, 3:58 PM MDTAreal Flood AdvisoryEPZOtero2 hr
Aug 13, 5:06 PM MDTFlash Flood WarningEPZDoña Ana3 hr
Aug 13, 5:39 PM MDTSpecial Weather StatementEPZDoña Ana36 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.