Conditions: Baltimore, Maryland, 12/05/2022 09:40:03 am
Temperature

34°

Mostly Cloudy

26°

Dew Point
Relative Humidity

72%

Feels Like

34°

Wind (N)

0mph

Air Pressure

30.28

Sun
Sun Rise

07:10 AM

Sun Set

04:43 PM

Day Length

09:33 Hours

Difference

1 min 0 sec loss

Moon
Moon Rise

03:09 PM

Moon Set

04:37 AM

Next: Full Moon

Dec 07,2022

Moon Phase

Waxing Gibbous

Climate
Average Low

31°

49°

Average High
Record Low

16°


(1966)

75°


(2001)
Record High
Current Conditions

Severe Thunderstorm Watch Sunday September 25: Rain Timeline and Live Radar

NOAA
Maryland Weather
Severe Weather
Forecast
Warnings

Sunday Afternoon Update

A Severe Thunderstorm Watch has been issued for most of Maryland west of the Chesapeake Bay and South Central Pennsylvania until 7 PM.  This was anticipated with the approaching cold front. Multiple rounds of storms are expected, and they will arrive at different times across the region. It is important to note that not all will see the same intensity of storms, but there is potential for high elevated alerts.

In this report is a look at two computer model simulations and the live radar to compare.

Severe Thunderstorm Watch: NOAA

This means there is potential but not a promise. We have the ingredients for storms to form and turn severe. If any cells do reach the criteria, then a Warning will be issued and that storm will be tracked through specific towns and counties. 

 

A storm is considered severe if it has:

  • Winds over 58 mph 
  • Hail over 1 inch in diameter
  • Isolated tornadoes or rotation

Any storm (even if not severe) may produce blinding downpours, flash flooding, and dangerous lightning.

NOAA Storm Outlook: NOAA

I shared this map this morning. It matches the Watch Counties. 

Radar Simulation Timeline —> slider

NAM 3 Km Model 3 PM to 11 PM

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Animations (Compare Models) 

NAM 3 Km: 2 PM to Midnight

I added an extra hour before and after the slider above…

Please consider this product has recently been underplaying rain coverage and about 1 hour slower than verified. 

Sunday September 25 severe storm radar NAM

HRRR Model: 2 PM to Midnight

This model keeps some spotty showers or storms around later into the evening for central Maryland, but much less intense for Southern Maryland and Delmarva.

I think a hybrid between this and the other model solution is likely to be what will verify.

Sunday September 25 severe storm radar HRRR

LIVE  Radar and Lightning Widget

I’ve posted this in case you want to see any development.

You can control the location: pan, pull out wider, or zoom in closer.


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