Oklahoma, 2009

Hail and Damaging Wind in Oklahoma, October 8, 2009

October 8, 2009 · NWS OUN · 13 events in 10 counties and zones

A potent upper-level trough moved through the southern plains, bringing with it very heavy rainfall and some severe weather. Ahead of the storm system, warm and extremely moist air was in place, setting the stage for very heavy rainfall to occur over a large area.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
13

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS OUN wrote it up.

A potent upper-level trough moved through the southern plains, bringing with it very heavy rainfall and some severe weather. Ahead of the storm system, warm and extremely moist air was in place, setting the stage for very heavy rainfall to occur over a large area. The storm system also caused some severe weather, although the heavy rainfall was the main threat. Numerous locations received over three inches of rainfall. No significant flooding was reported. A cold front moved southeast during the afternoon hours, with the rainfall ending as the boundary moved through.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Norman, OK wrote its last area forecast discussion before the first event at Oct 7, 5:37 PM CST, 6 hours 23 minutes earlier.

Area forecast discussion, Oct 7, 5:37 PM CST, 6 hours 23 minutes before
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Hazardous weather outlook, Oct 7, 5:25 PM CST, 6 hours 35 minutes before
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The radar

The Vance AFB radar (KVNX), 54 km away, was scanning. The volume nearest the first event began at 05:59 UTC.

Open the radar archive at this moment

Event by event

10 heavy rain, 2 hail, 1 thunderstorm wind. Local standard time, as filed.

Heavy Rain, Garfield

When
October 8, 12:00 AM CST to 6:50 PM CST
Where
Garfield County, 3 mi SE of Breckinridge
Reported by
Mesonet
Coordinates
36.409, -97.692

The rainfall totaled 3.74 inches.

Heavy Rain, Logan

When
October 8, 12:00 AM CST to 6:55 PM CST
Where
Logan County, 2.98 mi SSE of Marshall
Reported by
Mesonet
Coordinates
36.120, -97.600

The total rainfall accumulation was 3.31 inches.

Heavy Rain, Noble

When
October 8, 12:00 AM CST to 6:56 PM CST
Where
Noble County, 7 mi SSE of Red Rock
Reported by
Mesonet
Coordinates
36.366, -97.132

The total rainfall accumulation was 3.47 inches.

Heavy Rain, Payne

When
October 8, 12:00 AM CST to 6:57 PM CST
Where
Payne County, 2 mi W of Stillwater
Reported by
Mesonet
Coordinates
36.120, -97.096

The total rainfall accumulation was 3.25 inches.

Heavy Rain, Payne

When
October 8, 12:00 AM CST to 6:57 PM CST
Where
Payne County, 2 mi NW of Perkins
Reported by
Mesonet
Coordinates
36.001, -97.055

The total rainfall accumulation was 2.95 inches.

Heavy Rain, Kay

When
October 8, 12:00 AM CST to 6:59 PM CST
Where
Kay County, 8 mi E of Newkirk
Reported by
Mesonet
Coordinates
36.880, -96.915

The total rainfall accumulation was 2.57 inches.

Heavy Rain, Blaine

When
October 8, 12:00 AM CST to 6:59 PM CST
Where
Blaine County, 7 mi W of Watonga
Reported by
Mesonet
Coordinates
35.850, -98.535

The total rainfall accumulation was 2.66 inches.

Heavy Rain, Payne

When
October 8, 12:00 AM CST to 7:00 PM CST
Where
Payne County, 6.19 mi SSW of Lake Carl Blackwell Dam
Reported by
Mesonet
Coordinates
36.060, -97.240

The total rainfall accumulation was 2.57 inches.

Heavy Rain, Pontotoc

When
October 8, 12:00 AM CST to 10:31 PM CST
Where
Pontotoc County, 2 mi NNE of Ada
Reported by
Mesonet
Coordinates
34.797, -96.666

The total rainfall accumulation was 2.88 inches.

Heavy Rain, Hughes

When
October 8, 12:00 AM CST to 10:31 PM CST
Where
Hughes County, 2.91 mi ESE of Holdenville
Reported by
Mesonet
Coordinates
35.070, -96.350

The total rainfall accumulation was 3.53 inches.

Hail, Dewey

When
October 8, 4:00 AM CST
Where
Dewey County, Vici
Measured
1 in hail
Reported by
County Official
Coordinates
36.150, -99.300

The hail was reported by the County Commissioner.

Thunderstorm Wind, Stephens

When
October 8, 4:28 PM CST
Where
Stephens County, 3 mi SW of Velma
Measured
52 kt (60 mph) estimated gust
Reported by
Amateur Radio
Coordinates
34.429, -97.707

Quarter-size hail was also reported at this location.

Hail, Stephens

When
October 8, 4:28 PM CST to 4:29 PM CST
Where
Stephens County, 3 mi SW of Velma
Measured
1 in hail
Reported by
Amateur Radio
Coordinates
34.429, -97.707

Sixty-mile per hour winds were also reported.

What these are

Heavy Rain
Rainfall totals unusual for the place and season that did not produce a flood.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Oklahoma in 2009Every state in 2009This day in weather historyWarnings in Oklahoma, October 2009

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 200686, 200687, 200688, 200689, 200690, 200691, 200692, 200693, 200694, 200695, 200683, 200684, 200685.