Alert archive / New Mexico / Flash Flood Warnings in 2021
Flash Flood Warning 25, NWS El Paso, TX
NWS El Paso, TX issued this flash flood warning at Jul 18, 2021, 5:41 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 18, 2021, 5:41 PM MDT (23:41 UTC)
- Expired
- Jul 18, 2021, 8:45 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), 127 km from the middle of the area, began a volume at 23:45 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, 11.7 hours before the alert went out and 170 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.
- Mixed-layer CAPE
- 84 J/kg
- Mixed-layer CIN
- -194 J/kg
- Mixed-layer LCL
- 1852 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -41 m²/s²
- 0-3 km storm-relative helicity
- -8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
895
WGUS54 KEPZ 182341
FFWEPZ
NMC051-190245-
/O.NEW.KEPZ.FF.W.0025.210718T2341Z-210719T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service El Paso Tx/Santa Teresa NM
541 PM MDT Sun Jul 18 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 845 PM MDT.
* At 541 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 of 1 to 2 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...
Cuchillo.
Low water crossing flooding along County Road 20 just northwest of
Cuchillo
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
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 3331 10751 3327 10741 3324 10735 3321 10737
3321 10745 3324 10756 3328 10754
FLASH FLOOD...RADAR INDICATED
$$
TSBThe office that day
Everything else NWS El Paso, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 6:24 PM MDT | Areal Flood Advisory | EPZ | Doña Ana | 3 hr |
| Jul 17, 6:33 PM MDT | Areal Flood Advisory | EPZ | Sierra | 3 hr |
| Jul 17, 7:26 PM MDT | Areal Flood Advisory | EPZ | Sierra | 4 hr |
| Jul 18, 2:28 AM MDT | Flash Flood Watch | EPZ | Grant, Hidalgo, Luna, Otero, Sierra | 22 hr |
| Jul 18, 2:59 PM MDT | Areal Flood Advisory | EPZ | Otero | 3 hr |
| Jul 18, 3:17 PM MDT | Flash Flood Warning | EPZ | Doña Ana, Otero | 3 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.