Alert archive / Texas / Severe Thunderstorm Watches in 2009
Severe Thunderstorm Watch 96
The Storm Prediction Center issued this severe thunderstorm watch at Mar 30, 2009, 8:49 PM CDT for 22 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 30, 2009, 8:49 PM CDT (01:49 UTC)
- Expired
- Mar 31, 2009, 2:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 22 counties
Collin County, TX, Cooke County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Ellis County, TX, Fannin County, TX, Grayson County, TX, Hood County, TX, Hopkins County, TX, Hunt County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, Montague County, TX, Parker County, TX, Rains County, TX, Rockwall County, TX, Somervell County, TX, Tarrant County, TX, Van Zandt County, TX, Wise County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 84 km from the middle of the area, began a volume at 01:50 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 5%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 8:52 PM CDT | Severe Thunderstorm Warning | FWD | Montague | 38 min |
| Mar 30, 9:23 PM CDT | Severe Thunderstorm Warning | FWD | Jack, Wise | 52 min |
| Mar 30, 9:31 PM CDT | Severe Thunderstorm Warning | FWD | Parker | 59 min |
| Mar 30, 9:33 PM CDT | Severe Thunderstorm Warning | FWD | Cooke, Montague | 57 min |
| Mar 30, 10:09 PM CDT | Severe Thunderstorm Warning | FWD | Denton, Tarrant, Wise | 66 min |
| Mar 30, 10:26 PM CDT | Severe Thunderstorm Warning | FWD | Parker, Tarrant | 64 min |
| Mar 30, 10:29 PM CDT | Severe Thunderstorm Warning | FWD | Cooke | 46 min |
| Mar 30, 10:49 PM CDT | Severe Thunderstorm Warning | FWD | Dallas | 56 min |
| Mar 30, 11:15 PM CDT | Severe Thunderstorm Warning | FWD | Johnson, Somervell | 60 min |
| Mar 30, 11:25 PM CDT | Severe Thunderstorm Warning | FWD | Ellis | 65 min |
| Mar 30, 11:41 PM CDT | Severe Thunderstorm Warning | FWD | Collin, Dallas, Rockwall | 50 min |
| Mar 31, 12:06 AM CDT | Severe Thunderstorm Warning | FWD | Kaufman | 54 min |
| Mar 31, 12:28 AM CDT | Severe Thunderstorm Warning | FWD | Ellis | 62 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 7:40 PM CDT | Mesoscale Discussion | SPC | Clay, Cooke, Grayson | 2 hr |
| Mar 30, 8:31 PM CDT | Mesoscale Discussion | SPC | Collin, Cooke, Dallas, Delta, Denton, Fannin and 11 more | 89 min |
| Mar 30, 10:27 PM CDT | Mesoscale Discussion | SPC | Camp, Collin, Cooke, Dallas, Delta, Denton and 23 more | 93 min |
| Mar 30, 11:42 PM CDT | Mesoscale Discussion | SPC | Bowie, Camp, Cass, Collin, Dallas, Delta and 21 more | 2 hr |
| Mar 31, 11:54 AM CDT | Mesoscale Discussion | SPC | Newton, Orange | 96 min |
| Mar 31, 2:44 PM CDT | Mesoscale Discussion | SPC | Newton, Orange | 91 min |
Nearby
Severe Thunderstorm Watches in Texas, 2009Every severe thunderstorm watch in 2009
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.