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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 Chanhassen, MN (MPX), 00Z. Its levels are in the table below.
Observed Sounding at Chanhassen, MN (MPX), for (3 h 50 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 (35)
Chanhassen, MN (MPX): the surface first, then up through the atmosphere. Temperature and dew point in °C, as measured.
PressureHeightTemperatureDew pointWind
997 mb287 m10.6-2.4340° 4 kt
983 mb406 m9.6-6.4—
959 mb610 m7.6-7.2345° 13 kt
925 mb911 m4.6-8.4340° 16 kt
890 mb1219 m1.7-9.1345° 15 kt
857 mb1524 m-1.3-9.8340° 12 kt
850 mb1591 m-1.9-9.9340° 12 kt
825 mb1829 m-3.5-16.3355° 19 kt
810 mb1972 m-3.1-21.1—
794 mb2134 m-3.6-21.6015° 25 kt
775 mb2321 m-4.3-20.3—
764 mb2438 m-4.8-22.4020° 37 kt
741 mb2674 m-4.1-29.1—
729 mb2802 m-4.3-34.3—
707 mb3048 m-3.7-49.3345° 39 kt
700 mb3122 m-4.1-31.1340° 39 kt
689 mb3246 m-4.5-29.5—
654 mb3658 m-6.5-18.9350° 39 kt
634 mb3896 m-7.5-19.5—
609 mb4208 m-9.7-18.7—
592 mb4426 m-9.1-22.1—
581 mb4572 m-10.2-22.4350° 45 kt
558 mb4877 m-12.4-23.1355° 46 kt
536 mb5182 m-14.7-23.8000° 45 kt
522 mb5385 m-14.3-23.3—
502 mb5680 m-16.1-26.1—
500 mb5710 m-16.3-26.3000° 46 kt
475 mb6096 m-18.9-29.8350° 45 kt
458 mb6368 m-20.9-30.9—
437 mb6706 m-23.1-38.6355° 60 kt
420 mb7010 m-25.0-45.6000° 63 kt
408 mb7217 m-26.3-50.3—
400 mb7360 m-27.7-50.7005° 65 kt
386 mb7620 m-29.6—005° 66 kt
381 mb7708 m-30.3——
Every station with a sounding (78)

SPC observed soundings checked · Data: NOAA/SPC

Oregon 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.