Several days of southerly return flow and mild temperatures lead to a moderately unstable airmass over most of Oklahoma. A stalled frontal boundary combined with mid level west-northwesterly flow of 35-45 knots proved favorable for isolated severe thunderstorm development during the late afternoon and evening hours of the 29th. Significant hail was reported in a few locations, along with damaging winds and torrential rainfall.

Hail in CANADIAN, OKLAHOMA
From 29-MAR-13 17:40:00 to 29-MAR-13 17:40:00 (CST-6)
Location: RICHLAND
Magnitude: 1.75 
Reported by: Public

The hail lasted for 20 minutes.

Hail in CANADIAN, OKLAHOMA
From 29-MAR-13 17:42:00 to 29-MAR-13 17:42:00 (CST-6)
Location: CONCHO
Magnitude: 2.50 
Reported by: Trained Spotter

Hail in CANADIAN, OKLAHOMA
From 29-MAR-13 17:45:00 to 29-MAR-13 17:45:00 (CST-6)
Location: RICHLAND
Magnitude: 1.00 
Reported by: Public

The hail lasted for 30 minutes.

Hail in CANADIAN, OKLAHOMA
From 29-MAR-13 08:31:00 to 29-MAR-13 08:31:00 (CST-6)
Location: CONCHO
Magnitude: 1.00 
Reported by: Public

Hail in GRADY, OKLAHOMA
From 29-MAR-13 08:37:00 to 29-MAR-13 08:37:00 (CST-6)
Location: CHICKASHA ARPT
Magnitude: 1.00 
Reported by: Public

Hail in CANADIAN, OKLAHOMA
From 29-MAR-13 08:50:00 to 29-MAR-13 08:50:00 (CST-6)
Location: UNION CITY
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in GARVIN, OKLAHOMA
From 29-MAR-13 10:41:00 to 29-MAR-13 10:41:00 (CST-6)
Location: WYNNEWOOD
Magnitude: 1.00 
Reported by: Public

Hail in JOHNSTON, OKLAHOMA
From 29-MAR-13 11:38:00 to 29-MAR-13 11:38:00 (CST-6)
Location: BROMIDE
Magnitude: 1.75 
Reported by: Public

Hail in CANADIAN, OKLAHOMA
From 29-MAR-13 17:17:00 to 29-MAR-13 17:17:00 (CST-6)
Location: RICHLAND
Magnitude: 1.75 
Reported by: Public

The hail lasted for 10 minutes.

Hail in CANADIAN, OKLAHOMA
From 29-MAR-13 17:47:00 to 29-MAR-13 17:47:00 (CST-6)
Location: CONCHO
Magnitude: 2.25 
Reported by: Trained Spotter

Hail in CANADIAN, OKLAHOMA
From 29-MAR-13 17:50:00 to 29-MAR-13 17:50:00 (CST-6)
Location: RICHLAND
Magnitude: 1.00 
Reported by: Public

The hail lasted for 15 minutes.

Hail in CANADIAN, OKLAHOMA
From 29-MAR-13 18:00:00 to 29-MAR-13 18:00:00 (CST-6)
Location: PIEDMONT
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in LOGAN, OKLAHOMA
From 29-MAR-13 18:45:00 to 29-MAR-13 18:45:00 (CST-6)
Location: CIMARRON CITY
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in PAYNE, OKLAHOMA
From 29-MAR-13 19:20:00 to 29-MAR-13 19:20:00 (CST-6)
Location: (SWO)STILLWATER AIRPORT
Magnitude: 1.00 
Reported by: Emergency Manager

Hail in LOGAN, OKLAHOMA
From 29-MAR-13 19:43:00 to 29-MAR-13 19:43:00 (CST-6)
Location: SEWARD
Magnitude: 1.00 
Reported by: Trained Spotter

Hail fell near the intersection of Seward and Sooner Rd.

Hail in CANADIAN, OKLAHOMA
From 29-MAR-13 17:28:00 to 29-MAR-13 17:28:00 (CST-6)
Location: CONCHO
Magnitude: 1.25 
Reported by: Trained Spotter

Hail in CANADIAN, OKLAHOMA
From 29-MAR-13 17:37:00 to 29-MAR-13 17:37:00 (CST-6)
Location: CONCHO
Magnitude: 1.50 
Reported by: Trained Spotter

Hail in CANADIAN, OKLAHOMA
From 29-MAR-13 17:40:00 to 29-MAR-13 17:40:00 (CST-6)
Location: RICHLAND
Magnitude: 1.25 
Reported by: Public

The hail lasted 20 minutes.

Hail in CANADIAN, OKLAHOMA
From 29-MAR-13 17:40:00 to 29-MAR-13 17:40:00 (CST-6)
Location: RICHLAND
Magnitude: 1.00 
Reported by: Public

The hail lasted for 20 minutes and covered the ground.

Hail in CANADIAN, OKLAHOMA
From 29-MAR-13 17:00:00 to 29-MAR-13 17:00:00 (CST-6)
Location: CONCHO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in TILLMAN, OKLAHOMA
From 29-MAR-13 17:37:00 to 29-MAR-13 17:37:00 (CST-6)
Location: FREDERICK
Magnitude: 56.00 EG
Reported by: ASOS

Frederick ASOS measured a wind gust to 56 knots. No damage was reported.

Hail in LOGAN, OKLAHOMA
From 29-MAR-13 18:34:00 to 29-MAR-13 18:34:00 (CST-6)
Location: LOVELL
Magnitude: 2.50 
Reported by: Emergency Manager

Hail ranged from golf ball to tennis ball size and covered the ground.