Tuesday August 4 at 8AM
This morning our region is under a Tropical Storm Warning, Tornado Watch and Flash Flood Watch. Some of these events have begun to impact some areas with localized Tornado Warnings. If you don’t have much wind yet, you will shortly. The forward speed of the storm is moving faster, now at 33 mph to the North Northeast. So the worst conditions will be expected now through noon, then improve as the center of Isaias passes north.
Please note that multiple Tornado Warnings continue to be issue. This is a quickly changing situation and they may only spin up for a few minutes, and can be in any part of the Watch area.
This post is a follow up to my morning forecast to include hourly timeline sliders for wind and and rain according the the rapid updates HRRR Model.
Here is the short term forecast update. See the latest NHC Analysis of TS Isaias below.
Radar Simulation Timeline —> slider
The worst will be moving out around noon. There may be one more shower during the afternoon.
This looks like the center is just east of Richmond, VA
Wind Speed Forecast Timeline —> slider
This is for the 1 minute average wind. Gusts will be higher
Tropical Storm Isaias 8 AM Update
SUMMARY OF 800 AM EDT…1200 UTC…INFORMATION
- LOCATION…37.7N 76.8W
- ABOUT 15 MI…20 KM SSE OF TAPPAHANNOCK VIRGINIA
- MAXIMUM SUSTAINED WINDS…70 MPH…110 KM/H
- PRESENT MOVEMENT…NNE OR 25 DEGREES AT 33 MPH…54 KM/H
- MINIMUM CENTRAL PRESSURE…993 MB…29.33 INCHES
The faster forward speed gets in in and out sooner.
See the Full Morning Update:
This area should have a period of sustained winds over 39 mph. See the gusts below
Small EF-0 and EF-1 tornados are coming with tropical systems. These will likely be rain wrapped and hidden, but locally can push winds close to 100 mph in their path.
⚠️When rotations is spotted on Doppler Radar, a WARNING will be issued for that area.
Click here for : Tropical Storm Isaias Tracking Page
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Climate Report Today
Record Rainfall set in Baltimore at BWI
See the Weather Observations and Climate Report from this morning for more info about:
🌡 Climate data today
🗺 Weather Map
☀️ Sunrise and sunset times
🌙 Moon phase
Was Your County Not Included?
Click this map for more on the regional forecast zones
Baltimore Weather At BWI May Not Be As Hot As Reported
Construction at the airport close to the weather station may be added artificial heat. Click here or the image for the details.
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