Alert archive / New Mexico / Flash Flood Warnings in 2018

Flash Flood Warning 21, NWS El Paso, TX

August 22, 2018Otero County, New Mexico

NWS El Paso, TX issued this flash flood warning at Aug 22, 2018, 2:04 PM MDT for Otero 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 22, 2018, 2:04 PM MDT (20:04 UTC)
Expired
Aug 22, 2018, 4:00 PM MDT
In force
116 min
Issued by
NWS El Paso, TX
Area
Storm-based polygon
Flood severity
None

County Otero County, NM

The radar

The Holloman AFB radar (KHDX), 35 km from the middle of the area, began a volume at 20:04 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 12:00Z, 8.1 hours before the alert went out and 169 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 2018-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 122 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 2018-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 148 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
122 J/kg
Mixed-layer CIN
-172 J/kg
Mixed-layer LCL
1729 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
148 m²/s²
0-3 km storm-relative helicity
151 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

227 
WGUS54 KEPZ 222004
FFWEPZ
NMC035-222200-
/O.NEW.KEPZ.FF.W.0021.180822T2004Z-180822T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service El Paso TX
204 PM MDT WED AUG 22 2018

The National Weather Service in El Paso has issued a

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

* Until 400 PM MDT.
    
* At 202 PM MDT, Doppler radar indicated heavy rain across the 
  Soldier Canyon Burn Area.  Flash flooding will continue across
  the area..

  Flood waters are likely to carry a thick flow of mud, ash, rock, 
  and other loose debris.

* Some locations that will continue to experience flooding include...
  Mescalero and Soldier Canyon. 

  Some drainage basins impacted include Soldier Canyon and North 
  Fork Tularosa Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy rainfall will cause extensive flash flooding of creeks,
streams, ditches, and roads in and downstream of the Soldier Canyon
burn area, including Mescalero. Water, mud, and debris may flow
across roads, including U.S. Highway 70. Roads and driveways may be
washed away in places. If you encounter flood waters...climb to
safety.

Move away from recently burned areas. Life-threatening flooding of
creeks, roads and normally dry arroyos is likely. The heavy rains
will likely trigger rockslides, mudslides and debris flows in steep
terrain, especially in and around these areas.

&&

LAT...LON 3320 10571 3315 10574 3315 10576 3315 10577
      3315 10583 3317 10583 3317 10578 3320 10577

$$

TRIPOLI
2 follow-up statements
636 
WGUS74 KEPZ 222046
FFSEPZ

Flash Flood Statement
National Weather Service El Paso TX
246 PM MDT WED AUG 22 2018

NMC035-222200-
/O.CON.KEPZ.FF.W.0021.000000T0000Z-180822T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Otero NM-
246 PM MDT WED AUG 22 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 PM MDT FOR
NORTHERN OTERO COUNTY...

At 242 PM MDT, Doppler radar indicated heavy rain across the warned
area.  Flash flooding is expected to begin shortly.

Highway 70 is reportedly closed in the mescalero area due water and 
debris across the road.  Excessive rainfall over the burn scar will 
continue to result in debris flow moving near Mescalero. The debris 
flow can consist of rock, mud, vegetation and other loose materials. 
Low lying areas of the tribal village may also be affected. 

Some locations that will experience flooding include...
Mescalero...
and Soldier Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

Move away from recently burned areas. Life-threatening flooding of
creeks, roads and normally dry arroyos is likely. The heavy rains
will likely trigger rockslides, mudslides and debris flows in steep
terrain, especially in and around these areas.

&&

LAT...LON 3320 10571 3315 10574 3315 10576 3315 10577
      3315 10583 3317 10583 3317 10578 3320 10577

$$

TRIPOLI
961 
WGUS74 KEPZ 222048
FFSEPZ

Flash Flood Statement
National Weather Service El Paso TX
248 PM MDT WED AUG 22 2018

NMC035-222200-
/O.CON.KEPZ.FF.W.0021.000000T0000Z-180822T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Otero NM-
248 PM MDT WED AUG 22 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 PM MDT FOR
NORTHERN OTERO COUNTY...

At 242 PM MDT, Doppler radar indicated moderate rain across the 
warned area.  Flash flooding will continue over the area.

Highway 70 is reportedly closed in the mescalero area due water and 
debris across the road. Excessive rainfall over the burn scar will 
continue to result in debris flow moving near Mescalero. The debris 
flow can consist of rock, mud, vegetation and other loose materials. 
Low lying areas of the tribal village may also be affected. 

Some locations that will experience flooding include...
Mescalero...
and Soldier Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

Move away from recently burned areas. Life-threatening flooding of
creeks, roads and normally dry arroyos is likely. The heavy rains
will likely trigger rockslides, mudslides and debris flows in steep
terrain, especially in and around these areas.

&&

LAT...LON 3320 10571 3315 10574 3315 10576 3315 10577
      3315 10583 3317 10583 3317 10578 3320 10577

$$

TRIPOLI

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 9:15 PM MDTAreal Flood AdvisoryEPZDoña Ana, Otero60 min
Aug 22, 10:49 AM MDTAreal Flood AdvisoryEPZOtero116 min
Aug 22, 12:37 PM MDTFlash Flood WarningEPZOtero98 min
Aug 22, 1:40 PM MDTAreal Flood AdvisoryEPZOtero3 hr
Aug 22, 1:54 PM MDTSpecial Weather StatementEPZ51 min
Aug 22, 2:10 PM MDTFlash Flood WarningEPZOtero95 min
Aug 22, 2:13 PM MDTSpecial Weather StatementEPZOtero47 min
Aug 22, 2:39 PM MDTAreal Flood AdvisoryEPZOtero3 hr
Aug 22, 3:06 PM MDTAreal Flood AdvisoryEPZDoña Ana114 min
Aug 22, 3:18 PM MDTFlash Flood WarningEPZDoña Ana97 min
Aug 22, 3:34 PM MDTSpecial Weather StatementEPZOtero41 min
Aug 22, 3:44 PM MDTSpecial Weather StatementEPZOtero46 min
Aug 22, 4:04 PM MDTAreal Flood AdvisoryEPZGrant, Sierra3 hr
Aug 22, 4:10 PM MDTAreal Flood AdvisoryEPZOtero3 hr
Aug 22, 4:24 PM MDTAreal Flood AdvisoryEPZGrant3 hr
Aug 22, 4:33 PM MDTSpecial Weather StatementEPZHidalgo42 min
Aug 22, 4:40 PM MDTSpecial Weather StatementEPZHidalgo50 min
Aug 22, 4:54 PM MDTAreal Flood AdvisoryEPZSierra3 hr
Aug 22, 4:59 PM MDTSpecial Weather StatementEPZSierra46 min
Aug 22, 5:06 PM MDTSpecial Weather StatementEPZSierra39 min

Nearby

Flash Flood Warnings in New Mexico, 2018Every flash flood warning in 2018

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.