Alert archive / New Mexico / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 44, NWS El Paso, TX

September 8, 2020Doña Ana County, Otero County, New Mexico

NWS El Paso, TX issued this severe thunderstorm warning at Sep 8, 2020, 3:20 PM MDT for Doña Ana County, Otero County, New Mexico. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 8, 2020, 3:20 PM MDT (21:20 UTC)
Expired
Sep 8, 2020, 4:15 PM MDT
In force
55 min
Issued by
NWS El Paso, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Doña Ana County, NM, Otero County, NM

The radar

The Holloman AFB radar (KHDX), 68 km from the middle of the area, began a volume at 21:20 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, 9.3 hours before the alert went out and 78 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 2020-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1243 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, Santa Teresa, NM at 12:00Z on 2020-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 161 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
1243 J/kg
Mixed-layer CIN
-241 J/kg
Mixed-layer LCL
1787 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
161 m²/s²
0-3 km storm-relative helicity
273 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 severe thunderstorm warning 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 severe thunderstorm warning went out at Sep 8, 12:18 PM MDT, 3 hours 2 minutes earlier.

Area forecast discussion, Sep 8, 12:18 PM MDT, 3 hours 2 minutes before
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Hazardous weather outlook, Sep 8, 11:51 AM MDT, 3 hours 29 minutes before
Hazardous Weather Outlook
National Weather Service El Paso TX/Santa Teresa NM
1151 AM MDT Tue Sep 8 2020

NMZ401>417-TXZ418>424-091800-
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-
1151 AM MDT Tue Sep 8 2020

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

.DAY ONE...This Afternoon and Tonight

Scattered showers and thunderstorms are possible this afternoon
into tonight as a cold front moves through the region. Main
hazards will be the potential for small hail, gusty winds and
localized flooding.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Temperatures will drop about 20 to 30 degrees
behind the front Wednesday, and rain chances continue through the
day on Wednesday. Some of the highest elevations may drop to near
freezing Thursday morning. Showers and thunderstorms are possible
again this weekend.

.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today but rain totals and
weather reports will be appreciated.

In the hours before

Special weather statement, Sep 8, 2:08 PM MDT, 1 hour 12 minutes before
Special Weather Statement
National Weather Service El Paso TX
208 PM MDT Tue Sep 8 2020

NMZ417-TXZ420-421-082045-
Otero Mesa NM-Salt Basin TX-
Northern Hudspeth Highlands/Hueco Mountains TX-
208 PM MDT Tue Sep 8 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN OTERO AND
NORTHEASTERN HUDSPETH COUNTIES UNTIL 245 PM MDT...

At 206 PM MDT, Doppler radar was tracking strong thunderstorms over
the area, moving northeast at 30 mph.

Half inch hail and wind gusts up to 50 mph will be possible with
these storms.

Locations impacted include...
Dell City, Guadalupe Mountains National Park, Lincoln National
Forest, Crow Flats, Cornudas Mountains, Brokeoff Mountains, The Otero
Mesa, Far Western Portions of Guadalupe Mountains National Park and
Gypsum Dunes at Guadalupe National Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may
lead to localized flooding. Do not drive your vehicle through
flooded roadways.

&&

LAT...LON 3200 10486 3200 10492 3185 10492 3182 10493
      3183 10575 3233 10587 3229 10485 3203 10485
TIME...MOT...LOC 2006Z 240DEG 49KT 3219 10551

ROGASH
Special weather statement, Sep 8, 2:36 PM MDT, 44 minutes before
Special Weather Statement
National Weather Service El Paso TX
236 PM MDT Tue Sep 8 2020

NMZ414-417-TXZ420-421-082130-
Otero Mesa NM-West Slopes Sacramento Mountains Below 7500 Feet NM-
Salt Basin TX-Northern Hudspeth Highlands/Hueco Mountains TX-
236 PM MDT Tue Sep 8 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN OTERO AND
NORTHEASTERN HUDSPETH COUNTIES UNTIL 330 PM MDT...

At 234 PM MDT, Doppler radar was tracking strong thunderstorms over
the area including near Dell City, moving northeast at 30 mph.

Dime size hail and wind gusts up to 50 mph will be possible with
these storms.

Locations impacted include...
Dell City, Guadalupe Mountains National Park, Crow Flats, Cornudas
Mountains, Brokeoff Mountains, The Otero Mesa, Far Western Portions
of Guadalupe Mountains National Park and Gypsum Dunes at Guadalupe
National Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may
lead to localized flooding. Do not drive your vehicle through
flooded roadways.

&&

LAT...LON 3200 10486 3200 10492 3197 10492 3182 10518
      3225 10584 3253 10535 3252 10535 3252 10531
      3217 10485 3201 10485
TIME...MOT...LOC 2034Z 239DEG 49KT 3220 10534

ROGASH
Special weather statement, Sep 8, 2:41 PM MDT, 39 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 8, 2:08 PM MDTSpecial Weather StatementEPZ37 min
Sep 8, 2:36 PM MDTSpecial Weather StatementEPZ54 min
Sep 8, 2:41 PM MDTSpecial Weather StatementEPZ64 min
Sep 8, 2:46 PM MDTSevere Thunderstorm WarningEPZOtero44 min
Sep 8, 3:08 PM MDTAreal Flood AdvisoryEPZDoña Ana, Otero, Sierra112 min
Sep 8, 3:40 PM MDTSpecial Weather StatementEPZOtero50 min
Sep 8, 3:47 PM MDTSpecial Weather StatementEPZ43 min
Sep 8, 4:11 PM MDTSevere Thunderstorm WarningEPZOtero49 min
Sep 8, 4:53 PM MDTSpecial Weather StatementEPZOtero37 min
Sep 8, 4:59 PM MDTSpecial Weather StatementEPZDoña Ana46 min
Sep 8, 4:34 PM MDTSpecial Weather StatementEPZHudspeth41 min
Sep 8, 5:11 PM MDTSpecial Weather StatementEPZHudspeth64 min
Sep 8, 5:25 PM MDTSpecial Weather StatementEPZEl Paso50 min
Sep 8, 5:37 PM MDTAreal Flood AdvisoryEPZHudspeth113 min
Sep 8, 5:58 PM MDTSpecial Weather StatementEPZEl Paso47 min

Nearby

Severe Thunderstorm Warnings in New Mexico, 2020Every severe thunderstorm warning in 2020

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.