Area Forecast Discussion
Issued by NWS Hastings, NE
Issued by NWS Hastings, NE
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
071 FXUS63 KGID 102334 AFDGID Area Forecast Discussion National Weather Service Hastings NE 634 PM CDT Thu Sep 10 2026 .KEY MESSAGES... - A few thunderstorms will be possible FRI evening into the overnight hours. Storms can be marginally severe with 60-mph winds and quarter-sized hail. - Showers during the day on SAT will potentially give way to evening storms primarily for our KS counties. - Severe chances return MON evening, with more details to be ironed out as we get closer. - Overall, cooler and breezier conditions are expected by the weekend and into next week. && .DISCUSSION... Issued at 327 PM CDT Thu Sep 10 2026 No precip is expected today (THU) through at least FRI evening, outside of a very low chance (<10%) for a quick pop-up thunderstorm in our far western CWA. Tomorrow (FRI), temps will be in the 80s F to low 90s, but heat indices will not a concern. A few isolated thunderstorms will be possible for our southwestern CWA during the early evening as a surface low develops in SD and an approaching associated front stalls over west-central KS. This front will stall beneath subtle mid-level diffluence / jet forcing. However, confidence in these storms developing remains low as the best jet streak / advective forcing aloft looks to remain off to the east, and 700-hPa temperatures are expected to hold around 10 C. Overall, 12z HREF probabilities suggest 30 - 50% chances for these storms to develop. If storms do develop, however, severe hazards will be possible with pockets of severe winds and hail owing to steep low-level lapse rates beneath thicker CAPE profiles in the hail growth zone. Additionally, southerly sustained winds of 15 - 20 mph with gusts up to 30 mph are possible for the northern and central portions of our CWA, particularly in the during peak heating. Overnight FRI into SAT, a few more storms are anticipated to work across our north-central CWA counties as the stalled front begins to advance east with its parent shortwave. SPC currently has this area on the edge of their SLGT risk zone, with wind and hail as hazards. Marginally-severe hail looks the likeliest as storms are expected to stay elevated on the cool side of the passing front, which will likely help limit winds aloft from mixing down to the surface. Non- thunderstorm gusts early SAT morning can reach 25 mph on the backside of the advancing front for our western and northern counties, with lows bottoming out in the upper 50s to mid 60s. Isolated to scattered showers will linger for eastern counties on SAT through the late morning and afternoon hours. The previous night`s cold front (potentially augmented by stalled outflow) will come to rest just southeast of our KS counties. Storms may initiate along this boundary in the evening and move along / north of this boundary, as indicated by most members of the 12z REFS. Given PWATs of 1.6 - 1.8 in on SAT evening, localized flooding for our far southeastern CWA will need to be monitored, but no major impacts are anticipated. Sunday will be serve as a transition day between two troughs. Scattered showers and thunderstorms are possible, but severe probabilities look low. An isothermal layer up to near 700 mb owing to ridging between the troughs will likely keep most of this precip non-storm related, where storms would be reserved to localized pockets of strong mesoscale ascent. SUN will also be breezy, with gusts in the 25 - 30 mph range from late morning lasting through SUN and into MON. Monday is expected to return severe chances to our CWA as the next trough arrives in the evening hours with 35 - 45 kts of right- entrance flow at 500 mb per the 12z GEFS. The 06z EPS also suggests that a potent 850-mb LLJ will be in place late MON night with the nose placed over east-central NE. SPC currently holds us in their Day 5 15% outlook. Outside of storms, MON will be windier with gusts up to 35 mph. Lows Tuesday morning behind the cold front will dip to the upper 40s F for our far northwestern CWA, and broader 50s F for most. && .AVIATION /00Z TAFS THROUGH 00Z FRIDAY/... Issued at 616 PM CDT Thu Sep 10 2026 For KGRI/KEAR Airports: Not much has changed since the previous TAF issuance. Dry, VFR conditions are likely throughout the forecast period. However, there is a slight possibility of sub VFR ceilings from 9-16Z. These lower ceilings are expected to remain southeast of the area, though some model guidance does extend it closer to the terminals. This uncertainty was highlighted by the low scattered group. As the low-level jet intensifies tonight, there is chance for marginal LLWS tonight between 5-12Z, with wind shear values approaching 25-28kts. However, left out of the TAF due to values being sub criteria. The main impact tomorrow will be the strong southerly surface winds around 15-18kt, with gusts around 22-25kt possible in the afternoon. There is a chance for thunderstorms at the end of the TAF period (approx. 0Z and beyond), however this was left out of this TAF due to uncertainty in storm coverage and arrival. && .GID WATCHES/WARNINGS/ADVISORIES... NE...None. KS...None. && $$ DISCUSSION...Davis AVIATION...Scott