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Severe weather analysis

Observations and analyses of the atmosphere now, from NWS, WPC and SPC. Not a forecast and not a warning: for those, see the Briefing and the Live tracker.

SPC soundings: feeds current

SPC soundings: Feed current; checked .

Checked means retrieved, not newly issued. Each graphic retains its issue, observation, initialization or valid time. Site publishing status is separate.

Soundings: what weather balloons measured

SPC’s skew-T diagram and hodograph of the sounding at Albany, NY (ALB), 00Z. Its levels are in the table below.
Observed Sounding at Albany, NY (ALB), for (5 h 6 min ago). SPC’s graphic; the values in its panels (CAPE, shear, the indices) are SPC’s computations from these levels. Data: NOAA/SPC.

A balloon launched about an hour before the time named, measuring as it rose and drifted with the wind: the atmosphere above one place, at one time. Model soundings, which are forecasts, are not shown here.

The levels this sounding was drawn from (62)
Albany, NY (ALB): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
993 mb95 m15.612.5280° 7 kt
980 mb209 m14.811.7—
969 mb305 m14.111.2280° 23 kt
935 mb610 m11.99.5295° 38 kt
925 mb705 m11.49.1295° 36 kt
897 mb962 m11.49.1—
882 mb1104 m11.27.7—
870 mb1219 m11.45.7275° 40 kt
850 mb1413 m11.04.0280° 37 kt
839 mb1524 m10.33.9285° 37 kt
808 mb1829 m8.63.4275° 42 kt
779 mb2134 m6.83.0270° 45 kt
750 mb2438 m5.02.6265° 42 kt
723 mb2743 m3.22.2265° 38 kt
710 mb2891 m3.02.6—
700 mb3006 m2.62.4250° 47 kt
689 mb3134 m2.01.6—
666 mb3409 m0.80.4—
646 mb3658 m-0.2-0.4250° 64 kt
633 mb3817 m-0.9-0.9—
622 mb3962 m-1.6-1.6245° 70 kt
598 mb4267 m-3.0-3.5245° 65 kt
586 mb4432 m-3.9-4.5—
576 mb4572 m-4.7-5.4245° 61 kt
558 mb4818 m-6.1-7.1—
542 mb5046 m-8.1-9.6—
513 mb5472 m-10.7-11.7—
500 mb5670 m-12.1-12.4245° 69 kt
489 mb5838 m-13.7-16.2—
473 mb6096 m-15.2-16.9245° 75 kt
460 mb6298 m-16.3-17.5—
450 mb6462 m-17.3-19.2—
435 mb6706 m-19.1-21.0230° 80 kt
418 mb7010 m-21.1-24.2235° 78 kt
407 mb7204 m-22.1-25.4—
400 mb7330 m-23.7-29.7235° 84 kt
369 mb7925 m-25.1-32.6235° 81 kt
354 mb8218 m-25.7-32.7—
343 mb8446 m-26.9-33.9—
325 mb8833 m-29.1-36.1—
311 mb9144 m-31.4-38.4240° 95 kt
300 mb9400 m-33.3-40.3240° 94 kt
285 mb9754 m-34.8-42.8240° 96 kt
273 mb10058 m-36.2-44.2240° 96 kt
261 mb10363 m-37.9-46.4240° 99 kt
250 mb10668 m-39.7-48.7240° 107 kt
250 mb10670 m-39.7-48.7235° 110 kt
234 mb11118 m-42.6-51.6230° 117 kt
223 mb11442 m-44.7-53.7—
208 mb11887 m-48.3-56.7235° 111 kt
200 mb12160 m-50.5-58.5235° 113 kt
190 mb12497 m-53.0-61.0235° 112 kt
173 mb13106 m-55.5-63.5235° 116 kt
157 mb13716 m-58.5-65.9240° 101 kt
150 mb13990 m-60.3-67.3245° 101 kt
137 mb14553 m-62.5-69.5—
122 mb15240 m-65.8-72.8250° 78 kt
100 mb16459 m-68.5-76.5260° 55 kt
100 mb16460 m-68.5-76.5255° 44 kt
89 mb17145 m-67.9-78.9—
79 mb17881 m-66.0-79.5265° 32 kt
70 mb18655 m-62.7-75.7—
Every station with a sounding (78)

SPC observed soundings checked · Data: NOAA/SPC

District of Columbia briefing

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.