Alert archive / Arizona / Mesoscale Discussions in 2010

Mesoscale Discussion 45

January 21, 2010La Paz County, Yuma County, Arizona; Imperial County, California

The Storm Prediction Center issued this mesoscale discussion at Jan 21, 2010, 3:34 PM MST for La Paz County, Yuma County, Arizona; Imperial County, California. It was in force for 56 min.

The area

The outline as issued.

The facts

Issued: Jan 21, 2010, 3:34 PM MST (22:34 UTC)
Expired: Jan 21, 2010, 4:30 PM MST
In force: 56 min
Issued by: the Storm Prediction Center

Counties La Paz County, AZ, Yuma County, AZ, Imperial County, CA

The radar

The Yuma radar (KYUX), 100 km from the middle of the area, began a volume at 22:34 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Tornado Watch 8Jan 21, 4:05 PM MST

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 21, 4:12 PM MST	Tornado Watch	SPC	La Paz, Maricopa, Pima, Pinal, Yuma	9 hr
Jan 21, 12:51 PM MST	Mesoscale Discussion	SPC	Orange, Santa Barbara, Ventura	54 min

Nearby

Mesoscale Discussions in Arizona, 2010 Mesoscale Discussions in California, 2010 Every mesoscale discussion in 2010

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.