Alert archive / Colorado / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 29, NWS Denver/Boulder, CO

May 29, 1999Logan County, Washington County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 29, 1999, 6:41 PM MDT for Logan County, Washington County, Colorado. It was in force for 34 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 29, 1999, 6:41 PM MDT (00:41 UTC)
Expired: May 29, 1999, 7:15 PM MDT
In force: 34 min
Issued by: NWS Denver/Boulder, CO
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Logan County, CO, Washington County, CO

The radar

The Denver radar (KFTG), 134 km from the middle of the area, began a volume at 00:41 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 was reported inside it

Time	Report	Where	Remark
May 29, 6:45 PM MDT	Hail 1.5	Akron, CO
May 29, 7:00 PM MDT	Hail 1	Lindon, CO

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Denver/Boulder, CO wrote its last area forecast discussion before this severe thunderstorm warning went out at May 29, 2:45 PM MDT, 3 hours 56 minutes earlier.

Area forecast discussion, May 29, 2:45 PM MDT, 3 hours 56 minutes before

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The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 29, 6:00 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Washington	40 min
May 29, 6:19 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	26 min
May 29, 6:34 PM MDT	Severe Thunderstorm Warning	BOU	Phillips, Sedgwick	31 min
May 29, 6:41 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	34 min
May 29, 7:04 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Phillips, Sedgwick	41 min
May 30, 2:35 PM MDT	Tornado Warning	BOU	Weld	25 min
May 30, 3:55 PM MDT	Severe Thunderstorm Warning	BOU	Logan	35 min
May 30, 4:07 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	38 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1999 Every severe thunderstorm warning in 1999

Sources

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