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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 Aberdeen, SD (ABR), 00Z. Its levels are in the table below.
Observed Sounding at Aberdeen, SD (ABR), for (4 h 28 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 (55)
Aberdeen, SD (ABR): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
987 mb396 m9.8-0.2270° 4 kt
962 mb610 m8.0-2.0260° 7 kt
927 mb914 m5.2-3.0270° 7 kt
925 mb930 m5.0-3.0275° 8 kt
893 mb1219 m2.3-4.7255° 9 kt
875 mb1380 m3.8-9.2—
858 mb1539 m3.0-20.0—
850 mb1615 m2.6-20.4260° 10 kt
828 mb1829 m1.6-21.2260° 11 kt
801 mb2093 m0.4-21.6—
771 mb2400 m2.0-25.0—
748 mb2644 m1.2-27.8—
711 mb3048 m-1.1-25.1330° 24 kt
700 mb3174 m-1.7-24.7330° 23 kt
684 mb3353 m-2.6-23.1335° 22 kt
658 mb3658 m-4.2-17.3340° 23 kt
648 mb3785 m-4.9-14.9—
635 mb3944 m-5.1-13.1—
616 mb4183 m-6.1-16.1—
586 mb4572 m-8.1-26.7330° 33 kt
563 mb4877 m-9.7-24.8340° 36 kt
541 mb5182 m-11.2-18.5335° 38 kt
527 mb5390 m-12.5-19.5—
516 mb5551 m-13.5-19.5—
501 mb5775 m-15.1-21.1—
500 mb5790 m-15.1-20.1345° 32 kt
490 mb5942 m-15.7-26.7—
450 mb6578 m-19.3-26.3—
424 mb7010 m-22.2-31.6345° 40 kt
408 mb7296 m-24.1-35.1—
400 mb7440 m-25.3-36.3350° 43 kt
374 mb7925 m-28.7-39.1355° 52 kt
357 mb8258 m-31.3-42.3—
343 mb8534 m-33.4-46.0345° 54 kt
329 mb8839 m-35.3-49.7345° 47 kt
315 mb9144 m-37.6-51.4345° 51 kt
301 mb9449 m-40.1-52.2345° 52 kt
300 mb9470 m-40.3-52.3345° 52 kt
288 mb9754 m-42.9-53.1350° 52 kt
275 mb10058 m-45.5-54.5345° 54 kt
263 mb10349 m-47.9-56.9—
250 mb10668 m-50.2-58.3340° 58 kt
250 mb10680 m-50.3-58.3340° 60 kt
239 mb10974 m-51.9-58.9340° 63 kt
228 mb11278 m-53.3-60.9340° 59 kt
207 mb11887 m-55.7-63.0345° 68 kt
200 mb12120 m-56.5-63.5350° 73 kt
188 mb12497 m-58.1-65.1350° 73 kt
174 mb12994 m-60.7-67.7330° 47 kt
155 mb13716 m-58.8-68.6340° 63 kt
150 mb13920 m-58.7-69.7335° 65 kt
134 mb14630 m-60.8-73.5340° 60 kt
121 mb15240 m-61.5-76.0325° 44 kt
110 mb15850 m-61.1-78.1—
100 mb16440 m-62.7-80.7320° 37 kt
Every station with a sounding (78)

SPC observed soundings checked · Data: NOAA/SPC

Virginia 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.