Scattered damaging winds from severe thunderstorms will be possible across parts of the Northeast and Mid-Atlantic States Sunday. Excessive heat will continue over the southern U.S. Sunday before another round of heat arrives Monday through the central and southern U.S. spreading into the East by Independence Day. California will see excessive heat starting Tuesday. Read More >
Today's Tornado Potential
|
Risk Level
|
Definition
|
|
|
|
None
|
No tornado risk.
|
|
|
Marginal
|
Probability of a tornado within 25 miles of a point:
2 percent. |
|
|
Slight
|
Probability of a tornado within 25 miles of a point:
5 percent. |
|
|
Enhanced
|
Probability of a tornado within 25 miles of a point:
Equal to or greater than 10 percent. |
|
|
Moderate
|
Probability of a tornado within 25 miles of a point:
Equal to or greater than 30 percent. |
|
|
High
|
Probability of a tornado within 25 miles of a point:
Equal to or greater than 45 percent. |
|
|
Extreme
|
Probability of a tornado within 25 miles of a point:
Equal to or greater than 60 percent. |
Today's Hail Potential
Hail Risk Legend Severe Thunderstorm Safety Tips
|
Risk Level
|
Definition
|
|
| None | No Risk of Hail | |
|
|
Marginal
|
Risk of sub-severe hail (less than 1") or
Probability of severe hail (1" or greater) within 25 miles of a point: less than 15% |
|
|
Slight
|
Probability of severe hail (1" or greater) within 25 miles of a point:
Equal to or than 15% |
|
|
Enhanced
|
Probability of severe hail (1" or greater) within 25 miles of a point:
Equal to or greater than 30% |
|
|
Moderate
|
Probability of severe hail (1" or greater) within 25 miles of a point:
Equal to or greater than 45% |
|
|
High
|
Probability of severe hail (1" or greater) within 25 miles of a point: Equal to or greater than 60%
Probability of severe hail (2" or greater) within 25 miles of a point: Equal to or greater than 10% |
Today's Thunderstorm Wind Potential
|
Risk Level
|
Definition
|
|
| None | No Thunderstorm Wind Risk. | |
|
|
Marginal
|
Risk of sub-severe wind gusts (less than 58 mph) or
Probability of severe wind gusts (58 mph or greater) within 25 miles of a point: Equal to or less than 5% |
|
|
Slight
|
Probability of severe winds gusts (58 mph or greater) within 25 miles of a point:
Equal to or greater than 15% |
|
|
Enhanced
|
Probability of severe wind gusts (58 mph or greater) within 25 miles of a point:
Equal to or greater than 30% |
|
|
Moderate
|
Probability of severe wind gusts (58 mph or greater) within 25 miles of a point:
Equal to Greater than 45% |
|
|
High
|
Probability of severe wind gusts (58 mph or greater) within 25 miles of a point: Equal to or Greater than 60%
Probability of severe wind gusts (75 mph or greater) within 25 miles of a point: Equal to or Greater than 10% |
Today's Flash Flood/Flood Potential
 |
|
Risk Level
|
Definition
|
|
 |
None
|
No Flooding risk.
|
 |
Limited
|
Risk of localized flash flooding of small streams and low water crossings, and minor flooding of poor drainage or urban areas.
|
 |
Elevated
|
Risk of flash flooding of several low water crossings, roads, and small streams, |
 |
Significant
|
Risk of flash flooding of numerous roads, low water crossings, and small streams, |
 |
Extreme
|
Risk of widespread flash flooding of low water crossings, roads, and small streams.
or Major river flooding. |
Rainfall Forecast for the next 24 Hours
River and Stream Levels along with Forecasts
(Click on an Gauge for a Hydrograph and latest Forecast)
Current Radar and Warnings
Real Time Lightning Data
Number of Lightning Strikes/Flashes over a 2 Minute Period provided by COLMA (updated every 60 seconds)
​
Follow us on Twitter
Follow us on Facebook
Follow us on YouTube
BOU RSS Feed