Alert archive / New Mexico / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 38, NWS El Paso, TX

August 21, 2009Otero County, New Mexico

NWS El Paso, TX issued this severe thunderstorm warning at Aug 21, 2009, 1:42 PM MDT for Otero County, New Mexico. It was in force for 33 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
Aug 21, 2009, 1:42 PM MDT (19:42 UTC)
Expired
Aug 21, 2009, 2:15 PM MDT
In force
33 min
Issued by
NWS El Paso, TX
Area
Storm-based polygon

County Otero County, NM

The radar

The Holloman AFB radar (KHDX), 63 km from the middle of the area, began a volume at 19:46 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.

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 Aug 21, 3:50 AM MDT, 9 hours 52 minutes earlier.

Area forecast discussion, Aug 21, 3:50 AM MDT, 9 hours 52 minutes before
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Hazardous weather outlook, Aug 21, 11:25 AM MDT, 2 hours 17 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EL PASO TX/SANTA TERESA NM
1125 AM MDT FRI AUG 21 2009

NMZ022>025-030>032-TXZ055-056-221700-
SOUTHWEST MOUNTAINS/LOWER GILA REGION-SIERRA COUNTY LAKES REGION-
TULAROSA BASIN/SOUTHERN DESERT-SOUTHERN SACRAMENTO MOUNTAINS-
SOUTHWEST DESERT/BOOTHEEL-SOUTHWEST DESERT/MIMBRES BASIN-
SOUTHERN DESERT-EL PASO-HUDSPETH-
1125 AM MDT FRI AUG 21 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
NEW MEXICO...SOUTHWEST NEW MEXICO AND SOUTHWEST TEXAS.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. A WEAK BACKDOOR FRONT
PUSHED INTO THE REGION FROM THE NORTHEAST OVERNIGHT. SLIGHT
INCREASES IN LOW LEVEL MOISTURE ACCOMPANIED THIS BOUNDARY. THUS A
SLIGHT INCREASE IN THUNDERSTORM POTENTIAL IS EXPECTED TODAY.
ISOLATED STORMS ARE POSSIBLE THIS AFTERNOON AND EARLY EVENING. BEST
RAIN CHANCES SHOULD BE OVER THE WEST AND SOUTH PORTIONS OF THE
FORECAST AREA. SOME STORMS MAY BECOME BRIEFLY STRONG DUE TO
FAVORABLE SPEED SHEER ALOFT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. MOSTLY DRY CONDITIONS
WILL CONTINUE THROUGH THE PERIOD. A SLIGHT CHANCE FOR AFTERNOON AND
EVENING THUNDERSTORMS WILL CONTINUE...MAINLY WELL WEST OF THE RIO
GRANDE...ESPECIALLY OVER THE GILA AND BOOTHEEL REGIONS OF NEW MEXICO
AND OVER HIGHER MOUNTAINS EAST OF THE RIO GRANDE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

BIRD

In the hours before

Special weather statement, Aug 21, 1:35 PM MDT, 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE EL PASO TX/SANTA TERESA NM
135 PM MDT FRI AUG 21 2009

NMZ024-025-212100-
TULAROSA BASIN/SOUTHERN DESERT-SOUTHERN SACRAMENTO MOUNTAINS-
INCLUDING THE CITIES OF...ALAMOGORDO...MESCALERO...CLOUDCROFT...
TIMBERON
135 PM MDT FRI AUG 21 2009

...STRONG THUNDERSTORMS OVER THE WEST SLOPES OF THE SACRAMENTOS...

AT 130 PM MDT...STRONG THUNDERSTORMS WERE CONTINUING TO DEVELOP ON
THE WEST SLOPES OF THE SACRAMENTO MOUNTAINS. THE STRONGEST STORMS
WERE LOCATED BETWEEN THE SUNSPOT OBSERVATORY AND OLIVER LEE STATE
PARK.

THESE THUNDERSTORMS HAVE BEEN PRODUCING TORRENTIAL RAINFALL OVER
THE CANYONS ON THE WEST SLOPES OF THE HIGHER TERRAIN. ARROYOS WILL
LIKELY BECOME INUNDATED IN THIS AREA...AND AN ARROYO FLOOD
ADVISORY HAS ALREADY BEEN ISSUED FOR THIS AREA THROUGH 345 PM.

THESE STORMS WILL ALSO PRODUCE UP TO DIME SIZE HAIL...WIND GUSTS
OF 40 TO 50 MPH...AND DANGEROUS CLOUD TO GROUND LIGHTNING. GUSTY
WINDS MAY REACH AREAS FAR FROM WHERE RAIN IS FALLING.

PERSONS TRAVELING ON US-54 NEAR ALAMOGORDO...OR ON THE WESTSIDE
ROAD IN THE SACRAMENTO MOUNTAINS...SHOULD USE EXTREME CAUTION WHEN
ENCOUNTERING THESE STORMS.

OTHER THUNDERSTORMS HAVE ALSO BEEN DEVELOPING FARTHER NORTH NEAR
CLOUDCROFT AND MESCALERO. THESE STORMS ARE LIKELY TO STRENGTHEN
OVER THE NEXT HOUR OR SO. STRONG THUNDERSTORMS MAY BUILD INTO
ALAMOGORDO LATER THIS AFTERNOON.

TXZ055-056-212100-
EL PASO-HUDSPETH-
INCLUDING THE CITIES OF...EL PASO...SIERRA BLANCA...DELL CITY
135 PM MDT FRI AUG 21 2009

...STRONG THUNDERSTORMS OVER SOUTHERN HUDSPETH COUNTY MOVING NORTH...

AT 130 PM MDT...A LINE OF STRONG THUNDERSTORMS WAS DEVELOPING
OVER SOUTHERN HUDSPETH COUNTY...STRETCHING FROM NEAR ESPERANZA AND
FORT QUITMAN...EASTWARD TO VAN HORN. THIS LINE OF STORMS WAS
MOVING TO THE NORTH AT ABOUT 20 MPH.

THESE STORMS WILL BE CAPABLE OF PRODUCING SMALL HAIL...FREQUENT
LIGHTNING...LOCALLY TORRENTIAL RAINFALL...AND WIND GUSTS OF 40 TO
50 MPH.

THE STORMS WILL MOVE INTO THE I-10 CORRIDOR BETWEEN FORT HANCOCK
AND VAN HORN BEFORE 2 PM MDT...AS WELL AS THE TOWN OF SIERRA
BLANCA. MOTORISTS TRAVELING ON I-10 IN THE AREA SHOULD USE EXTREME
CAUTION WHEN ENCOUNTERING THESE STORMS.

SATELLITE AND RADAR TRENDS SUGGEST ADDITIONAL DEVELOPMENT OF
THUNDERSTORMS WILL BE POSSIBLE OVER THE NEXT FEW HOURS OVER
SOUTHERN EL PASO COUNTY.

HARDIMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 12:53 PM MDTAreal Flood AdvisoryEPZOtero3 hr

Nearby

Severe Thunderstorm Warnings in New Mexico, 2009Every severe thunderstorm warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.