Alert archive / New Mexico / Areal Flood Advisories in 2021

Areal Flood Advisory 49, NWS El Paso, TX

July 1, 2021Sierra County, New Mexico

NWS El Paso, TX issued this areal flood advisory at Jul 1, 2021, 12:42 PM MDT for Sierra County, New Mexico. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jul 1, 2021, 12:42 PM MDT (18:42 UTC)
Expired
Jul 1, 2021, 3:45 PM MDT
In force
3 hr
Issued by
NWS El Paso, TX
Area
Storm-based polygon

County Sierra County, NM

The radar

The Holloman AFB radar (KHDX), 100 km from the middle of the area, began a volume at 18:46 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

Albuquerq/Krtlnd, NM (KABQ), launched 12:00Z, 6.7 hours before the alert went out and 220 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, Albuquerq/Krtlnd, NM at 12:00Z on 2021-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 173 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albuquerq/Krtlnd, NM at 12:00Z on 2021-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.193958Sfc1 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
173 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
962 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS El Paso, TX wrote its last area forecast discussion before this areal flood advisory went out at Jul 1, 11:03 AM MDT, 1 hour 39 minutes earlier.

Area forecast discussion, Jul 1, 11:03 AM MDT, 1 hour 39 minutes before
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Hazardous weather outlook, Jul 1, 11:01 AM MDT, 1 hour 41 minutes before
Hazardous Weather Outlook
National Weather Service El Paso TX/Santa Teresa NM
1101 AM MDT Thu Jul 1 2021

NMZ401>417-TXZ418>424-021800-
Upper Gila River Valley-Southern Gila Highlands/Black Range-
Southern Gila Foothills/Mimbres Valley-
Southwest Desert/Lower Gila River Valley-Lowlands of the Bootheel-
Uplands of the Bootheel-Southwest Desert/Mimbres Basin-
Eastern Black Range Foothills-Sierra County Lakes-
Northern Dona Ana County-Southern Dona Ana County/Mesilla Valley-
Central Tularosa Basin-Southern Tularosa Basin-
West Slopes Sacramento Mountains Below 7500 Feet-
Sacramento Mountains Above 7500 Feet-
East Slopes Sacramento Mountains Below 7500 Feet-Otero Mesa-
Western El Paso County-Eastern/Central El Paso County-
Northern Hudspeth Highlands/Hueco Mountains-Salt Basin-
Southern Hudspeth Highlands-
Rio Grande Valley of Eastern El Paso/Western Hudspeth Counties-
Rio Grande Valley of Eastern Hudspeth County-
1101 AM MDT Thu Jul 1 2021

This Hazardous Weather Outlook is for portions of south central
New Mexico, southwest New Mexico, and southwest Texas.

.DAY ONE...Today and Tonight
Isolated to widely scattered lowland thunderstorms are expected
again this afternoon and evening with scattered to numerous
coverage in the mountains. Locally heavy rainfall amounts are
possible, especially in the Sacramento Mountains and the Blacks
Range where over 2 inches of rain may occur and cause flash
flooding.  A Flash Flood Watch is in effect until 6 PM.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday
A daily chance for showers and thunderstorms will continue through
the period. The main threat will continue to be locally heavy rain
and flooding, although a day or two may have a threat for gusty
winds and small hail.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is requested again this afternoon and evening
to help monitor the flash flooding situation across the region.

26

In the hours before

Local storm report, Jul 1, 9:00 AM MDT, 3 hours 42 minutes before
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<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 8:57 AM MDTAreal Flood AdvisoryEPZDoña Ana3 hr
Jul 1, 9:34 AM MDTAreal Flood AdvisoryEPZLuna3 hr
Jul 1, 11:21 AM MDTAreal Flood AdvisoryEPZDoña Ana3 hr
Jul 1, 12:05 PM MDTAreal Flood AdvisoryEPZSierra115 min
Jul 1, 12:45 PM MDTAreal Flood AdvisoryEPZSierra3 hr
Jul 1, 12:51 PM MDTAreal Flood AdvisoryEPZOtero3 hr
Jul 1, 12:56 PM MDTAreal Flood AdvisoryEPZDoña Ana3 hr
Jul 1, 1:02 PM MDTAreal Flood AdvisoryEPZGrant, Hidalgo3 hr
Jul 1, 1:16 PM MDTAreal Flood AdvisoryEPZGrant, Hidalgo, Luna3 hr
Jul 1, 1:41 PM MDTAreal Flood AdvisoryEPZDoña Ana2 hr
Jul 1, 2:20 PM MDTFlash Flood WarningEPZOtero3 hr
Jul 1, 2:27 PM MDTAreal Flood AdvisoryEPZOtero3 hr
Jul 1, 3:02 PM MDTFlash Flood WarningEPZOtero3 hr
Jul 1, 3:04 PM MDTAreal Flood AdvisoryEPZDoña Ana, Luna116 min
Jul 1, 3:25 PM MDTAreal Flood AdvisoryEPZDoña Ana3 hr
Jul 1, 3:31 PM MDTAreal Flood AdvisoryEPZGrant, Luna, Sierra3 hr
Jul 1, 3:52 PM MDTAreal Flood AdvisoryEPZOtero3 hr
Jul 1, 3:56 PM MDTAreal Flood AdvisoryEPZGrant3 hr
Jul 1, 4:06 PM MDTAreal Flood AdvisoryEPZDoña Ana, Otero3 hr
Jul 1, 4:18 PM MDTFlash Flood WarningEPZOtero3 hr
Jul 1, 4:20 PM MDTAreal Flood AdvisoryEPZGrant3 hr
Jul 1, 4:34 PM MDTAreal Flood AdvisoryEPZSierra116 min
Jul 1, 5:15 PM MDTFlash Flood WarningEPZOtero3 hr
Jul 1, 5:38 PM MDTAreal Flood AdvisoryEPZOtero112 min
Jun 30, 8:39 PM MDTAreal Flood AdvisoryEPZHudspeth111 min
Jul 1, 3:08 PM MDTAreal Flood AdvisoryEPZHudspeth3 hr
Jul 1, 3:22 PM MDTFlash Flood WarningEPZHudspeth3 hr
Jul 1, 4:23 PM MDTAreal Flood AdvisoryEPZEl Paso, Hudspeth112 min

Nearby

Areal Flood Advisories in New Mexico, 2021Every 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.