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NDCMP Weather Forecast

District 1District 2
Transition (UTC)31500
FirstSecondThirdFirstSecondThird
Forecasted WeatherHAILNO SIGHAIL

Forecaster: Mark Schneider

Synopsis


Models did not initialize current convection in southeastern MT along a slowly sagging frontal boundary. Looking at 700mb and 500mb levels, storms are being forced by the first of two shortwaves moving into northern ND during the forecast period. Current storms will likely remain just north of district, but first period HAIL forecast is warranted. During the overnight, the second (and main) shortwave will move into E MT and initially storms/forcing remain in northern ND. Tomorrow morning gets interesting because broader forcing shifts southward and the cap erodes between 15-17Z to initiate severe daytime convection.

7/27/25


Flash Flood Guidance (Click Image for 1hr, 3hr, & 6hr Graphics)

850mb

700mb

500mb

300mb

250mb

Today's 18Z Sounding

Tomorrow's 18Z Sounding

500mb Vorticity Showing Short-wave Ridging this evening

Today's 12Z HRRR Run at 17Z not initializing convection


Indices


Lifted Index
(<1)
K index
(>30)
Total Totals
(>48)
Sweat
(>200)
Cape
(>125)
CIN
(>-100)
Bulk Richarson Number
(>3)
Helicity
(>125)
D1 -3.7 27.4 57 311 688 -188 14 44
ISN 0 0 0 0 0 0 0 0
MOT 0 0 0 0 0 0 0 0

Jefferson Index
(>28.5)
Cross Totals
(>18.65)
Thompson Index
(>28.5)
S Index
(>35.8)
Showalter Index
(<=0.5)
Cap Strength
(0-2.65°C)
D1 28 21.1 31.1 39 -4.3 3.9
ISN 0 0 0 0 0 0
MOT 0 0 0 0 0 0

Weather Features

  • Cold Front
  • Short Wave Trough
  • Stationary Front