Source-rendered snow depth and snow water equivalent for the lower 48. History changes this snow picture only; warnings and radar keep their own clocks.
No NOHRSC picture displayed on the interactive map.
0 - 0.39 in
0.39 - 2.0 in
2.0 - 3.9 in
3.9 - 9.8 in
9.8 - 20 in
20 - 39 in
39 - 59 in
59 - 98 in
98 - 197 in
197 - 295 in
295 - 394 in
394 - 787 in
NOAA/NWS/NOHRSC’s original picture and legend. No station or address value is inferred.
NOHRSC footprint times are metadata; pixel analysis time is not independently verified. Snow-depth pixels have previously differed from the footprint time. This is modeled/assimilated snow analysis, not a measurement at a place. Unshaded and no-data areas do not establish zero snow.
Collector checked not reported; feed generated not reported. Zero cells does not establish coverage or clear weather. Observations from different radars are not merged.
Washington; Frederick; Carroll; Northern Baltimore; Extreme Western Allegany; Central and Eastern Allegany; Northwest Harford; Western Garrett; Eastern Garrett; Augusta; Rockingham; Shenandoah; Frederick; Page; Warren; Clarke; Western Highland; Eastern Highland; Western Loudoun; Northern Virginia Blue Ridge; Central Virginia Blue Ridge; Hampshire; Morgan; Berkeley; Jefferson; Hardy; Western Grant; Eastern Grant; Western Mineral; Eastern Mineral; Western Pendleton; Eastern Pendleton
Freeze Warning
Issued
Updated
Ends as issued
Office
NWS Baltimore MD/Washington DC
Take steps now to protect tender plants from the cold.
The polygon is a warned area, not a tornado footprint. NWS detection tags are independent of radar algorithms and reports.
Relevant watched places
Save named places to check their point against every supported warning.
Full official message
Freeze Warning issued October 17 at 12:36AM EDT until October 18 at 8:00AM EDT by NWS Baltimore MD/Washington DC
* WHAT...Sub-freezing temperatures in the upper 20s and low 30s are
possible.
* WHERE...Portions of north central and western Maryland, central,
northwest, and western Virginia, and the eastern panhandle of West
Virginia.
* WHEN...From 1 AM to 8 AM EDT Sunday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
Take steps now to protect tender plants from the cold.
Warning-message history (0)
No retained revisions are available in this recording window.
Data: NOAA/NWS · KLWX.FZ.W.0007
Recent source changes
gauges-observed · source-revision · Recorded 2026-10-17T06:05:04.752Z
radar-alerts · source-revision · Recorded 2026-10-17T06:02:02.386Z
office-afd · source-revision · Recorded 2026-10-17T06:00:10.623Z
radar-alerts · source-revision · Recorded 2026-10-17T06:00:07.371Z
hrrr · source-revision · Recorded 2026-10-17T06:00:06.833Z
refs · source-revision · Recorded 2026-10-17T06:00:06.833Z
soundings · source-revision · Recorded 2026-10-17T06:00:06.833Z
metars · source-revision · Recorded 2026-10-17T06:00:06.833Z
Recording coverage and limits
warnings: retained from 2026-10-16T06:06:58.559Z through 2026-10-17T06:06:02.617Z
outlooks: retained from 2026-10-16T06:06:58.559Z through 2026-10-17T06:05:04.424Z
hydro: retained from 2026-10-16T06:06:58.559Z through 2026-10-17T06:05:04.752Z
analysis: retained from 2026-10-16T06:06:58.559Z through 2026-10-17T06:00:06.833Z
winter: retained from 2026-10-16T06:06:58.559Z through 2026-10-17T05:53:03.100Z
Source-message history is not recorded imagery replay. Recorded radar/satellite imagery is not available in this view.
Auto-updating checks this site’s cache every minute; each source keeps its own clock.
Spotlight: Winter Storm Severity Index
1 of 15
Winter Storm Severity Index
WPC: “WSSI does not depict official warnings and should always be used in context with official NWS forecasts and warnings.”
WPC’s WSSI, overall impact, Days 1–3, valid to , issued . WPC issues each day and cause on its own clock. Not a warning, and not a chance. Data: NOAA/NWS/WPC.
Chance of Moderate impacts or worse, Day 1
WPC: “WSSI does not depict official warnings and should always be used in context with official NWS forecasts and warnings.”
WPC’s Probabilistic Winter Precipitation Forecast, to , issued . Outlines, as WPC draws them. Data: NOAA/NWS/WPC.
Winter watches, warnings and advisories
Freeze Warning55 not yet in effect · until · NWS Baltimore MD/Washington DC, NWS Binghamton NY, NWS Cleveland OH, 2 more offices
Freeze Watch33 not yet in effect · until · NWS Mount Holly NJ, NWS Upton NY
Frost Advisory11 not yet in effect · until · NWS Cleveland OH
NWS’s winter and cold alerts in force in the area, by event as issued, each counted once, with the offices that issued them and the latest end. Data: NOAA/NWS.
Snow on the ground
NOHRSC snow depth and snow water equivalent use the source’s original pictures and legends, with qualified footprint times. Open the cached source page for availability and retained history. This wall has no snow picture to rotate; missing imagery does not mean no snow.
NHC’s and JTWC’s storms, their official graphics and the watches and warnings for them. Storm Mode’s own tropical panels arrive with its tropical events.
The Radar page’s winter preset over the area: HRDPS forecast snow with NWS’s warnings on top, loaded by your browser. A forecast, labelled as one there.
Not an official warning service. Warnings and watches are the National Weather Service’s, outlooks and reports the Storm Prediction Center’s and the Weather Prediction Center’s (Data: NOAA/NWS, NOAA/SPC, NOAA/WPC). When a warning is issued for you, act on it, and use weather.gov or a NOAA Weather Radio for where you are.
0 - 0.39 in
0.39 - 2.0 in
2.0 - 3.9 in
3.9 - 9.8 in
9.8 - 20 in
20 - 39 in
39 - 59 in
59 - 98 in
98 - 197 in
197 - 295 in
295 - 394 in
394 - 787 in