Alert archive / Colorado / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 149, NWS Denver/Boulder, CO

August 9, 2010Phillips County, Sedgwick County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Aug 9, 2010, 9:00 PM MDT for Phillips County, Sedgwick County, Colorado. It was in force for 45 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 9, 2010, 9:00 PM MDT (03:00 UTC)
Expired: Aug 9, 2010, 9:45 PM MDT
In force: 45 min
Issued by: NWS Denver/Boulder, CO
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Phillips County, CO, Sedgwick County, CO

The radar

The Goodland radar (KGLD), 162 km from the middle of the area, began a volume at 03:00 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 9, 5:26 PM MDT	Severe Thunderstorm Watch	SPC	8 hr

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.

In the hours before

Local storm report, Aug 9, 6:09 PM MDT, 2 hours 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DENVER CO
609 PM MDT MON AUG 09 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0523 PM     HAIL             1 E GALETON             40.52N 104.56W
08/09/2010  M0.75 INCH       WELD               CO   TRAINED SPOTTER

            COUNTY ROAD 51 BETWEEN CO392 AND WELD COUNTY RD 74--6 TO
            8 AREAS WITH 6 TO 8 INCHES OF WATER ON ROAD. 2.53 INCHES
            MEASURED RAINFALL AT HIS LOCATION.

0451 PM     HEAVY RAIN       8 NE GALETON            40.60N 104.47W
08/09/2010  M1.75 INCH       WELD               CO   TRAINED SPOTTER

            1.75 INCHES IN 1 HOUR. WINDS GUSTING TO 45 MPH. PEA SIZE
            HAIL ALSO ACCOMPANIED STORM.

&&

BENTON

Local storm report, Aug 9, 7:11 PM MDT, 1 hour 49 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
711 PM MDT MON AUG 09 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0655 PM     HEAVY RAIN       2 W FORT MORGAN         40.27N 103.83W
08/09/2010  U0.00 INCH       MORGAN             CO   TRAINED SPOTTER

            STREET FLOODING IN FORT MORGAN. 4 INCHES DEEP. DRAINS
            CLOGGED. RAIN AMOUNT NOT GIVEN.

0639 PM     TSTM WND GST     3 N PAWNEE PASS         40.67N 103.48W
08/09/2010  M58.00 MPH       LOGAN              CO   TRAINED SPOTTER

            NO REPORTED DAMAGE

0523 PM     HAIL             1 E GALETON             40.52N 104.56W
08/09/2010  M0.75 INCH       WELD               CO   TRAINED SPOTTER

            COUNTY ROAD 51 BETWEEN CO392 AND WELD COUNTY RD 74--6 TO
            8 AREAS WITH 6 TO 8 INCHES OF WATER ON ROAD. 2.53 INCHES
            MEASURED RAINFALL AT HIS LOCATION.

0451 PM     HEAVY RAIN       8 NE GALETON            40.60N 104.47W
08/09/2010  M1.75 INCH       WELD               CO   TRAINED SPOTTER

            1.75 INCHES IN 1 HOUR. WINDS GUSTING TO 45 MPH. PEA SIZE
            HAIL ALSO ACCOMPANIED STORM.

&&

BENTON

Local storm report, Aug 9, 8:02 PM MDT, 58 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
Aug 9, 6:06 PM MDT	Areal Flood Advisory	BOU	Morgan	84 min
Aug 9, 6:19 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Morgan	56 min
Aug 9, 6:27 PM MDT	Tornado Warning	BOU	Morgan	33 min
Aug 9, 6:36 PM MDT	Flash Flood Warning	BOU	Morgan	3 hr
Aug 9, 6:42 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Morgan, Weld	63 min
Aug 9, 6:56 PM MDT	Tornado Warning	BOU	Logan, Morgan, Washington	20 min
Aug 9, 7:21 PM MDT	Severe Thunderstorm Warning	BOU	Washington	39 min
Aug 9, 7:27 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Morgan, Sedgwick, Washington	63 min
Aug 9, 7:45 PM MDT	Tornado Warning	BOU	Washington	14 min
Aug 9, 7:54 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Phillips, Sedgwick, Washington	66 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2010 Every severe thunderstorm warning 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.