Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
032
FXXX04 KWNP 182201
DAYPRE
:Product: 3-day Space Weather Predictions daypre.txt
:Issued: 2026 Aug 18 2200 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/wwire.html
#
# 3-day Space Weather Predictions
#
:Prediction_dates: 2026 Aug 19 2026 Aug 20 2026 Aug 21
:Geomagnetic_A_indices:
A_Fredericksburg 19 14 11
A_Planetary 24 15 12
#
# Predicted 3-hour Middle latitude k-indices
:Pred_Mid_k:
Mid/00-03UT 3 4 4
Mid/03-06UT 4 3 2
Mid/06-09UT 4 3 2
Mid/09-12UT 4 3 2
Mid/12-15UT 3 2 2
Mid/15-18UT 3 2 2
Mid/18-21UT 2 2 2
Mid/21-00UT 3 3 3
#
# Predicted 3-hour High latitude k-indices
:Pred_High_k:
High/00-03UT 3 3 3
High/03-06UT 4 3 2
High/06-09UT 5 4 2
High/09-12UT 6 5 4
High/12-15UT 4 4 4
High/15-18UT 5 2 3
High/18-21UT 2 2 2
High/21-00UT 2 2 2
#
# Probability of Geomagnetic conditions at Middle Latitude
:Prob_Mid:
Mid/Active 40 35 30
Mid/Minor_Storm 25 15 10
Mid/Major-Severe_Storm 5 1 1
#
# Probability of Geomagnetic conditions at High Latitudes
:Prob_High:
High/Active 10 15 15
High/Minor_Storm 30 35 30
High/Major-Severe_Storm 55 40 35
#
# Polar Cap Absorption Forecast
:Polar_cap:
green
#
# Solar
:10cm_flux:
125 125 120
#
:Whole_Disk_Flare_Prob:
Class_M 35 35 35
Class_X 5 5 5
Proton 5 5 5
#
# Region Flare Probabilities for 2026 Aug 19
# Region Class C M X P
:Reg_Prob: 2026 Aug 18
4506 30 5 1 1
4507 75 25 5 5
4508 25 5 1 1
4510 35 5 1 1