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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 Pittsburgh, PA (PIT), 00Z. Its levels are in the table below.
Observed Sounding at Pittsburgh, PA (PIT), for (4 h 57 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 (61)
Pittsburgh, PA (PIT): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
971 mb360 m12.812.8260° 3 kt
943 mb610 m10.410.1270° 15 kt
931 mb714 m9.69.6—
925 mb768 m9.49.1280° 23 kt
909 mb914 m8.28.2285° 23 kt
876 mb1219 m6.56.5280° 24 kt
850 mb1465 m5.44.7295° 22 kt
825 mb1709 m4.22.5—
791 mb2050 m1.61.6—
760 mb2372 m0.0-1.5—
738 mb2607 m-1.5-2.3—
726 mb2743 m-0.1-1.3275° 43 kt
703 mb2996 m-1.7-1.7—
700 mb3030 m-1.3-1.4260° 54 kt
647 mb3658 m-3.3-3.3230° 57 kt
599 mb4267 m-5.5-5.5235° 65 kt
566 mb4708 m-7.9-7.9—
554 mb4877 m-9.5-10.3240° 70 kt
543 mb5029 m-11.3-14.2—
531 mb5200 m-12.3-21.3—
516 mb5419 m-12.9-22.9—
505 mb5584 m-12.9-16.5—
500 mb5660 m-13.1-15.0240° 76 kt
478 mb6001 m-14.9-17.6—
466 mb6192 m-17.1-27.1—
455 mb6371 m-17.7-18.7—
445 mb6537 m-17.9-19.8—
430 mb6793 m-18.1-32.1—
420 mb6969 m-18.9-23.2—
410 mb7147 m-20.1-24.1—
400 mb7330 m-21.1-23.2235° 89 kt
385 mb7620 m-22.2-39.2235° 92 kt
370 mb7903 m-22.3-39.3—
354 mb8226 m-24.1-29.1—
342 mb8477 m-25.5-33.5—
323 mb8887 m-29.5-35.5—
312 mb9144 m-30.8-48.4230° 89 kt
300 mb9410 m-32.5-50.5230° 90 kt
283 mb9818 m-35.9-53.9—
269 mb10170 m-37.9-57.9—
259 mb10430 m-40.1-50.1—
250 mb10670 m-42.3-50.3230° 86 kt
240 mb10945 m-44.5-54.5—
229 mb11259 m-46.9-62.9—
219 mb11556 m-46.3-66.3—
205 mb11996 m-46.7-68.7—
200 mb12160 m-47.7-69.7220° 97 kt
190 mb12497 m-49.7-71.2220° 101 kt
150 mb14010 m-59.5-79.5235° 95 kt
137 mb14574 m-61.7-79.7—
123 mb15240 m-64.4-82.0245° 82 kt
111 mb15862 m-65.7-82.7—
100 mb16490 m-69.7-83.7260° 52 kt
80 mb17839 m-62.9-83.9275° 32 kt
70 mb18660 m-63.9-84.9260° 29 kt
59 mb19717 m-60.2-83.5260° 30 kt
48 mb21003 m-61.1-84.4160° 3 kt
38 mb22447 m-61.4-85.0235° 18 kt
28 mb24378 m-56.4-83.3235° 16 kt
18 mb27191 m-51.6-83.3295° 11 kt
9 mb31795 m-45.9-82.9—
Every station with a sounding (78)

SPC observed soundings checked · Data: NOAA/SPC

Nebraska 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.