Severe-weather outlooks and precipitation forecasts from NOAA/NWS. No permissions, no tracking, no clutter — just the maps.
Users
6
−1 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#229K
#192K among extensions
Version
1.1.1
updated 6 Sep 2026
Users
monthly, 4 months
Latest, 15 Oct 2026:6 usersMove the mouse over the chart for any month
Ratings count
monthly, 4 months
Latest, 15 Oct 2026:1 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About StormDeck — Weather Forecast Maps
StormDeck puts official NOAA/NWS forecast maps one click away — severe-weather outlooks and precipitation forecasts, in one clean grid.
SEVERE — NOAA/NWS Storm Prediction Center, Day 1 through 8:
• Days 1 & 2: Categorical outlook, with Tornado, Wind, and Hail probability views
• Day 3: Categorical and combined probability
• Days 4–8: Probabilistic "any severe" outlooks
PRECIP — NOAA/NWS Weather Prediction Center, Day 1 through 7-day totals:
• Days 1, 2, and 3: quantitative precipitation forecast (QPF)
• Days 4–5 and Days 6–7: 48-hour period totals
• 5-day and 7-day storm-total precipitation
• One toggle switches every precip map between filled shading and line contours
Switch decks from the header. Click any map to enlarge it and switch between map types.
Maps always point to SPC's and WPC's latest images, so they update as new forecasts are issued. Day labels follow the U.S. Central convective-day convention (Day 1 = today).
No permissions, no tracking, no accounts, no background process — StormDeck loads public map images from spc.noaa.gov and wpc.ncep.noaa.gov, and nothing else.
Imagery courtesy of the NOAA/NWS Storm Prediction Center and the NOAA/NWS Weather Prediction Center (public-domain U.S. government work). Not affiliated with NOAA.
Growth
Window
Users
Change
Ratings
Rating
7 days
+1
+20.0%
0
0.00
30 days
−1
−14.3%
0
0.00
Chrome Web Store search rankings
Where StormDeck — Weather Forecast Maps appears when people search the store, with the 30 day change